Dwyer Instruments 3400 Series Installation and operating instructions
1
Series 3400 and 3500 Smart Pressure Transmitters
Specications - Installation and Operating Instructions
Bulletin P-3400-3500
The Series 3400 and 3500 Smart Pressure Transmitters are microprocessor-based
high performance transmitters, which have exible pressure calibration, push button
conguration, and are programmable using HART® Communication. The Series
3400 and 3500 are capable of being congured with three push buttons located
inside the front cover of the units (a eld calibrator is not required for conguration.)
The transmitter software compensates for thermal effects, improving performance.
EEPROM stores conguration settings and stores sensor correction coefcients in the
event of shutdowns or power loss. The 3400 and 3500 can be congured to be ATEX/
IECEx approved for use in hazardous (Classied) locations. The rangeability allows
the smart transmitter to be congured to t most applications.
FEATURES/BENEFITS
• High accuracy (±0.075% FS)
• 3400 Rangeability (up to 100:1)
• 3500 Rangeablility (up to 25:1)
• Completely congurable using push buttons (no calibrator required)
• Fail-mode process function
• Automatic ambient temperature compensation
APPLICATIONS
• Water and wastewater
• Chemical and petrochemical
• Pulp and paper
• Oil and gas
• Food and beverage
• Filter or pump differential pressure
• Critical process monitoring
5-1/4 [132] 5-1/4 [133]
1-1/2 [38.5]
3-5/8
[91.5] 4
[102]
1/2˝ NPT [MALE]
PROCESS
CONNECTION
2 X M6
5-1/4 [132] 5-1/4 [133]
3-5/8
[91.5] 4
[102]
2 X M6
1/4˝ NPT [FEMALE]
PROCESS
CONNECTIONS
SPECIFICATIONS
3400 SPECIFICATIONS
Service: Compatible gases, steam,
liquids, or vapors.
Wetted Materials: 316L SS.
Accuracy: ±0.075% FS (@20°C).
Rangeability: Up to 100:1 turn down.
Stability: ≤0.075% FSO/3 years.
Temperature Limits: Ambient: -40 to
185°F (-40 to 85°C); Process w/ -DS: -40
to 400°F (-40 to 204.4°C).
Thermal Effect: <±0.05% span/10°C.
Power Requirements: 10-55 VDC.
Output Signal: 4-20 mA.
Response Time: 16 to 480 ms
(programmable).
Dampening Time: 0 to 60 s.
Electrical Connections: Packing gland
M20x1.5, two 1/2˝ female NPT conduit,
screw terminal.
Process Connection: 1/2˝ female or
male NPT.
Enclosure Rating: NEMA 4X IP66/IP67.
Agency Approvals: CE; -IS, -FP sufx:
ATEX Compliant 2813 II 2G Ex ia/
db IIC T6/T5 Gb Ta<80°C, T5 / II 2D Ex
ia/tb IIIC T85°C/T100°C Db. Type
Certicate No. KDB 17ATEX0056X.
ATEX Standards: EN 60079-
0:2012+A11:2013,
EN 60079-1:2014, EN 60079-11:2012,
EN 60079-26:2015, EN 60079-31:2014
IECEx Compliant: Ex ia/db IIC T6/
T5 Gb / Ex ia/tb IIIC T85°C/T100° Db.
Certicate of Conformity IECEx KDB
17.0008X. IECEx Standards: IEC 60079-
0:2011, IEC 60079-1:2014-06, IEC
60079-11:2011, IEC 60079-26:2006, IEC
60079-31:2013.
3500 SPECIFICATIONS
Service: Compatible gases, steam,
liquids, or vapors.
Wetted Materials: 316L SS and FPM;
with Diaphragm Seal: 316L SS.
Accuracy: ±0.075% FS (@20°C).
Rangeability: Up to 25:1 turn down.
Stability: ≤0.075% FSO/3 years.
Temperature Limits: Ambient: -40 to
185°F (-40 to 85°C); Process w/ -DS: -40
to 400°F (-40 to 204.4°C).
Thermal Effect: <±0.05% span/10°C.
Power Requirements: 10-55 VDC.
Output Signal: 4-20 mA.
Response Time: 16 to 480 ms
(programmable).
Dampening Time: 0 to 60 s.
Electrical Connections: Packing gland
M20x1.5, two 1/2˝ female NPT
conduit, screw terminal.
Process Connection: 1/4˝ female NPT.
Enclosure Rating: NEMA 4X IP66/IP67.
Agency Approvals: CE; -IS, -FP sufx:
ATEX Compliant 2813 II 2G Ex
ia/db IIC T6/T5 Gb Ta<80°C, T5 / II 2D
Ex ia/tb IIIC T85°C/T100°C Db. Type
Certicate
No. KDB 17ATEX0056X. ATEX
Standards: EN 60079-0:2012+A11:2013,
EN 60079-1:2014, EN 60079-11:2012,
EN 60079-26:2015, EN 60079-31:2014
IECEx Compliant: Ex ia/db IIC T6/
T5 Gb / Ex ia/tb IIIC T85°C/T100° Db.
Certicate of Conformity IECEx KDB
17.0008X. IECEx Standards: IEC 60079-
0:2011, IEC 60079-1:2014-06, IEC
60079-11:2011, IEC 60079-26:2006, IEC
60079-31:2013.
®
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: [email protected]
2
Explanation of Symbols:
Symbol Description
Warning to proceed strictly in accordance with the
information contained in the documentation in order to
ensure the safety and full functionality of the device.
Information particularly useful during installation and
operation of the device.
Information particularly useful during installation and
operation of an Ex device.
Information on disposal of used equipment.
BASIC REQUIREMENTS AND SAFE USE
• The manufacturer will not be liable for damage resulting from incorrect
installation, failure to maintain the device in a suitably functional condition,
or use of the device other than for its intended purpose.
• Installation should be carried out by qualied personnel having the
necessary authorization to install electrical and pressure measuring
devices. The installer is responsible for performing the installation in
accordance with these instructions and with the electromagnetic
compatibility and safety regulations and standards applicable to the type of
installation.
• The device should be congured appropriately for the purpose for which
it is to be used. Incorrect conguration may cause erroneous functioning,
leading to damage to the device or an accident.
• In systems with pressure transmitters there exists, in case of leakage, a
risk to personnel on the side where the medium is under pressure. All
safety and protection requirements must be observed during installation,
operation and inspections.
• If a device is not functioning correctly, disconnect it and send it for repair to
the manufacturer or to a rm authorized by the manufacturer.
In order to minimize the risk of malfunction and associated risks to personnel,
the device is not to be installed or used in particularly hostile conditions, where
the following risks occur:
• possibility of mechanical impacts, excessive shocks and vibration;
• excessive temperature uctuation;
• condensation of water vapor, dust, icing.
Installation of intrinsically safe versions should be performed with particular
care, in accordance with the regulations and standards applicable to that
type of installation.
Changes in the production of transmitters may precede a paper updating for the
user. The current user manuals are available at http://www.dwyer-inst.com/
3
TABLE OF CONTENTS
FEATURES, INSTALLATION AND MAINTENANCE OF TRANSMITTERS .....3
INTRODUCTION ..................................................3
USER MATERIALS .................................................3
APPLICATIONS AND MAIN FEATURES ................................3
IDENTIFYING MARKS ORDERING PROCEDURE ........................3
TECHNICAL DATA .................................................3
CONSTRUCTION ..................................................5
PLACE OF INSTALLATION ..........................................6
INSTALLATION AND MECHANICAL CONNECTIONS .....................6
ELECTRICAL CONNECTION .........................................8
SETTING AND REGULATION ........................................9
INSPECTIONS AND SPARE PARTS ..................................13
PACKING, STORAGE AND TRANSPORT .............................13
GUARANTEE ....................................................13
SCRAPPING, DISPOSAL ...........................................13
ADDITIONAL INFORMATION .......................................13
FEATURES, INSTALLATION AND MAINTENANCE OF TRANSMITTERS
1. INTRODUCTION
1.1. This manual is intended for users of Series 3400 smart pressure
transmitters, and Series 3500 smart differential pressure transmitters.
It contains the data and guidelines necessary to understand the operation
of the transmitters. It includes essential recommendations regarding
installation and use, as well as emergency procedures. The parameters and
information specied for transmitters identied here as Series 3400 and
3500 also apply to their explosion-proof versions, as well as all variations
differing by the type of the process terminals. Information on the transmitter
sizes and the method of installation apply to all versions of transmitters.
1.2. Technical data for the diaphragm seals and for the 3400 and 3500
transmitters are contained in Appendix III.
1.3. The transmitters comply with the requirements of EU directives as shown on
the plate and with the relevant Declaration of Conformity.
1.4. Additional data for Series 3400 and 3500 transmitters in intrinsic-safety Exi
versions in accordance with ATEX directive is contained in Appendix II and
in ame-proof Exd versions in Appendix I.
During installation and use of the transmitters in Exi or Exd version in
accordance with ATEX directive, reference should be made to Appendix II or
Appendix I respecively.
1.5. Additional data for Series 3400 and 3500 transmitters in intrinsic-safety Exi
versions in accordance with IECEx certicate is contained in Appendix II
and in ame-proof Exd versions in Appendix I.
During installation and use of the transmitters in Exi or Exd version in
accordance with IECEx certicate, reference should be made to Appendix I
or Appendix II.
2.0. The transmitters in all versions comply the requirements of the RoHS
Directive in accordance with EN 50581: 2012.
2. USER MATERIALS
Transmitters are delivered in single and/or multiple packs. Together with the
transmitter are delivered:
a) Product certicate
b) User’s Manual numbered: P-3400-3500
Items are available on http://www.dwyer-inst.com/
3. APPLICATIONS AND MAIN FEATURES
3.1. The Series 3400 smart pressure transmitters are designed to measure
gauge pressure, vacuum pressure and absolute pressure of gases, vapors
and liquids (including corrosive substances).
The Series 3500 differential pressure transmitters are used to measure liquid
levels in closed tanks with static pressure up to 25MPa, and differential pressure
across constrictions such as lters and orices.
3.2. The transmitters may be tted with a variety of process connectors, which
enables them to be used in a variety of conditions such as thick or highly
reactive media, high and low temperatures, etc.
3.3. 3400 and 3500 transmitters generate a 4-20 mA output signal and a
digital HART signal in a two-wire system (current loop). The use of smart
electronics enables regulation of the zero point, the measurement range,
damping, radical conversion characteristic and other functions using an KAP
communicator or from a PC using a HART/RS232 or HART/USB/ Converter
and “Raport 2” conguration software.
4. IDENTIFYING MARKS. ORDERING PROCEDURE
4.1. Every transmitter carries a rating plate containing at least the following
information: CE mark, manufacturer name, transmitter type, serial number,
pressure range, static pressure limit, output signal, power supply voltage.
Version types and the method of specifying the desired product are
described on the catalog page.
4.2. 3400 and 3500 transmitters in Exi version or Exd version have additional
markings as described in Appendix II or Appendix I.
4.3. The transmitters in all versions comply the requirements of the RoHS
Directive in accordance with EN 50581.
5. TECHNICAL DATA
5.1. 3400 and 3500 common parameters
5.1.1. 3400 and 3500 electrical parameters
Output signal 4-20 mA + HART rev.5.1
Communication with the transmitter to check its conguration parameters
is carried out via HART transmission protocol and signal of 4-20 mA.
For this purpose: KAP-03, KAP-03Ex communicator, HART/RS232
converter or HART/USB Converter or another converter, PC computer
and Raport 2 program can be used.
Resistance of power supply cables or resistors for communication, and
output resistance of the power supply can lead to voltage drops on the
way from the power supply to transmitter terminals. Therefore, the
maximum resistance permitted to be included in a series circuit with the
power supply should be calculated (Rmax load resistance). The total
resistance in the Ro current loop must be lower than this value to ensure
the minimum voltage on the terminals of the converter throughout
the current loop operating range (up to 22.5 mA with regard to HART
alarms and communication).
The resistance necessary for communication (HART) min 240 Ω
The maximum values of Rmax permissible load resistance for the supply
voltage of the power supply (Usup[V] DC) should be calculated based on
the following formula:
R
max[Ω] =
When the Ro total load resistance in the current loop is given, the
minimum supply voltage (Usup [V] DC) required for the use of the power
supply can be calculated likewise.
Usup[V] = Umin[V] + 0,0225 [A] x Ro[Ω]
where:
Rmax – maximum permissible load resistance for a specic voltage of
the power supply. Ro – total resistance in the current loop
Usup – supply voltage
The maximum length of the connection cable 1500 m (4921ft)
Output updating time 16…480 ms
(programmable)
150 ms – version Exd
Additional electronic damping 0...60 s
5.1.2. 3400 and 3500 Construction materials
Diaphragm seal for 3400 SS 1.4404/1.4435(316L
Diaphragm seal for 3500 SS 1.4404/1.4435(316L)
Sensing module SS 1.4404 (316L)
Liquid lling the interior the sensing module Silicone oil,
chemically inactive liquid for
measurement of oxygen
uses.
Connectors for 3400 SS 1.4404 (316L)
Electronics casing High pressure cast of
aluminium alloy, lacquered
with chemical-resistant
oxide enamel, or 1.4401
(316)
Materials for 3400 and 3500 transmitters with diaphragm seals are
described in Appendix III
Versions
of the
transmitter
Minimum supply
voltage at transmitter
terminals
Umin [V] DC
Maximum supply
voltage at transmitter
terminals
Umax [V] DC Notes
Normal
Intrinsically
safe (Exi)
Explosion
proof (Exd)
10**
10.5**
13.5*
55V DC
30V DC
45V DC
see Appendix I
See Appendix II
*Setting the indicator backlight increases the minimum supply voltage by 3V.
**Minimum supply voltage with backlight on (backlight cannot be turned off).
Usup[V] – Umin[V]
0.0225[A]
4
5.1.3. Enclosure ingress protection
IP 66,67 according to EN 60529
5.1.4. Response time on pressure stroke
In response to the pressure stroke measured by the transmitter - full
change (100%) of the transmitter output current is carried out over a
period of one to a maximum of two values of processing time. The value
of transmitter response time can be set in the Raport 2 program using the
slider on the tab Specic parameters
-> Conguration.
5.1.5. Accuracy depending on the set range
5.2. Series 3400 Measurement ranges and metrological parameters
5.2.1. Measurement ranges
5.2.2. Permitted environmental conditions
Operating temperature range -40º - 85ºC
Operating temperature range for ame-proof versions in accordance with
Appendix I.
Operating temperature range for intrinsic-safe versions in accordance
with Appendix II.
Medium temperature range -40º - 120ºC – for direct
measurement, over 120°C
measurement with a
transmission tube or
diaphragm seal
Thermal compensation range -25º - 80ºC
Relative humidity max 98% with
condensation
For transmitters with diaphragm seals permissible temperature and
corrosive properties of the medium depend on the type of separators,
see Appendix III.
5.2.3. Metrological parameters
Accuracy ≤ ± 0.075% for the
calibrated range
Long term stability ≤ accuracy / 3 years (for
the nominal measuring
range) or ≤ 2 x accuracy
5 years (for the nominal
measuring range)
Error due to supply voltage changes max ± 0.002%(FSO)/1V
Thermal error < ± 0.05%(FSO)/10ºC
Thermal error for the whole thermal max ± 0.25%(FSO)
Compensation range
5.2.5. Series 3400, Pressure Connectors
• 1/2˝ NPT M -type connector with 1/2˝ NPT male and internal tread
G1/4˝
Limitation of the maximum measuring range to 70MPa for transmitters with
1/2˝ NPT-M connectors for male thread 1/2˝ NPT.
5.3 Series 3500 Measurement ranges and metrological parameters
5.3.1. Series 3500. Measurement ranges
5.3.2. Series 3500. Permitted environmental conditions
Operating temperature range -25º - 85ºC
Operating temperature range for ame-proof versions in accordance with
Appendix I.
Operating temperature range for intrinsic-safe versions in accordance
with Appendix II.
Medium temperature range -25º - 120ºC – for direct
measurement,
Thermal compensation range -25º - 80ºC
Relative humidity max 98% with
condensation
For transmitters with diaphragm seals permissible temperature and
corrosive properties of the medium depend on the type of separators,
see Appendix III.
ρ0 – error for nominal measuring range
(0...100% FSO)
ρ1 - error for range
(0...10% FSO)
ρ1 = 2 x ρ0
Accuracy
Set range
10 30 100 [%]
0
1
Nominal
Measuring Range
Minimum Set
Range Rangeability
Overpressure
Limit
01
03
05
07
10
11
13
15
17
20
23
26
29
60
61
63
65
71
72
73
75
77
80
83
85
89
0 to 18 psia
0 to 100 psia
0 to 350 psia
0 to 1000 psia
0 to 15 psi
0 to 30 psi
0 to100 psi
0 to 350 psi
0 to 1000 psi
0 to 2300 psi
0 to 4350 psi
0 to 8700 psi
0 to 14500 psi
0 to 1.3 bar abs
0 to 7 bar abs
0 to 25 bar abs
0 to 70 bar abs
0 to 1 bar
0 to 2 bar
0 to 7 bar
0 to 25 bar
0 to 70 bar
0 to 160 bar
0 to 300 bar
0 to 600 bar
0 to 1000 bar
1.5 psia
1.5 psia
3.6 psia
10.2 psia
0.7 psi
1.5 psi
1 psi
3.6 psi
10.2 psi
23.2 psi
43.5 psi
87 psi
145 psi
100 mbar abs
100 mbar abs
0.25 bar abs
0.7 bar abs
50 mbar
100 mbar
0.07 bar
0.25 bar
0.7 bar
1.6 bar
3 bar
6 bar
10 bar
13:1
70:1
100:1
100:1
20:1
20:1
100:1
100:1
100:1
100:1
100:1
100:1
100:1
13:1
70:1
100:1
100:1
20:1
20:1
100:1
100:1
100:1
100:1
100:1
100:1
100:1
29 psi
203 psi
725 psi
2030 psi
29 psi
58 psi
203 psi
725 psi
2030 psi
6526 psi
6526 psi
17404 psi
17404 psi
2 bar
14 bar
50 bar
140 bar
2 bar
4 bar
14 bar
50 bar
140 bar
450 bar
450 bar
1200 bar
1200 bar
Nominal
Measuring Range
Minimum Set
Range Rangeability
Overpressure/Static
Pressure Limit
02
04
08
10
15
20
25
38
40
50
60
70
71
72
75
78
80
±10 in w.c.
0 to 30 in w.c.
0 to 100 in w.c.
±200 in w.c.
0 to 1000 in w.c.
0 to 15 psi
0 to 100 psi
0 to 230 psi
0 to 1000 psi
±2.5 in w.c.
±1.5 psi
0 to 0.25 bar
0 to 1 bar
0 to 2.5 bar
0 to 16 bar
0 to 70 bar
±7 mbar
0.8 in w.c.
1.6 in w.c.
4 in w.c.
40 in w.c.
2813 in w.c.
0.7 psi
23 psi
23 psi
101.5 psi
0.4 in w.c.
0.15 psi
10 mbar
50 mbar
0.2 bar
1.6 bar
7 bar
1 mbar
25:1
18:1
25:1
10:1
10:1
20:1
10:1
10:1
10:1
14:1
20:1
25:1
20:1
12.5:1
10:1
10:1
14:1
2900 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
3625/6091 psi
290 psi
3625/6091 psi
250/420 bar
250/420 bar
250/420 bar
250/420 bar
250/420 bar
20 bar
5
5.3.3. Series 3500, Metrological parameters
Accuracy ≤ ±0.075% (FSO) of the
calibrated range
≤ ±0.1% (FSO) for range
-80, -50
Long term stability ≤ accuracy / 3 years
or ≤ 2 x accuracy / 5 years
Error due to supply voltage changes ±0.002%(FSO)/1V
Thermal error ≤ ±0.05%(FSO)/10ºC for
range -02, -04, -08, -10,
-15, -20, -25, -38, -40, -60,
-70, -71, -72, -75, -78
≤ ± 0.08%(FSO)/10ºC for
range -80, -50
≤ ± 0.25%(FSO) for the
whole compensation range
≤ ± 0.1%(FSO) for the
whole compensation range
for range n° -02, -04, -08,
-10, -15, -20, -25, -38, -40,
-60, -70, -71, -72, -75, -78
Zero shift error for static pressure* ± 0.06 % (FSO)/10bar (for
range -38, -40, -75, -78)
± 0.01 % (FSO)/10bar (for
range -02, -04, -08, -10,
-15, -20, -25, -60, -70, -71,
-72)
± 0.02 % (FSO)/10bar (for
range -80, -50)
± 0.01 % (FSO)/10bar (for
range -38, -75)
Cut-off on radical characteristic curve up to10% of ow.
*Zeroing in static pressure conditions with zero differential pressure
eliminates this error.
5.3.4. Series 3500 with Diaphragm Seal. Metrological parameters
Accuracy ≤ ± 0.1% (FSO)
The other parameters are as given in 5.3.3.
5.3.5. Series 3500 Pressure Connectors
3500 – Cover anges with 1/4˝ female NPT process connections to
mount together with a valve manifold (see Figure 1).
3500 with single direct diaphragm seal – as in the example (Figure 2) or
with other diaphragm seals in accordance with Appendix III.
Figure 1 - Series 3500 differential pressure transmitter
Figure 2: Series 3500 differential pressure transmitter with a single direct
diaphragm seal (example)
18 18132
LOCK
TO
PREVENT
ROT
ATION OF
THE CASING
GROUNDING
TERMINAL
91.5
2 X M6
133
41.3
54
M20 X 1.5
CABLE GLAND
CABLE Ø6 - Ø12
4 X M10
96 - HS AND EXD VERSION
82 - HS VERSION
84 - EXD VERSION
70
80
601/4 NPT
1/4˝ NPT
1/4˝ NPT
S-T TYPE
TUBE FLANGED
DIAPHRAGM SEAL
S-P TYPE
FLUSH FLANGED
DIAPHRAGM SEA
L
6
6. CONSTRUCTION
6.1. Principle of measurement. Electronic system construction
The electrical signal from the sensor, which is proportional to the pressure,
is sent to an analog input and converted to a digital signal. The digital signal
is then transmitted via optoelectronic galvanic isolation to the conditioning
module. The main plate microcontroller reads measured values and, using
internal algorithms, calculates the exact value of pressure and temperature.
The calculated value of the process variable is displayed on the integrated
LCD screen, which can be congured as needed. The digital value of the
measured pressure signal is converted to an analog 4-20 mA signal. A
built-in modem BELL 202 and HART rev5.1 communication stack enables
communication with the transmitter via a converter HART/RS232 attached to
a PC and software, or via communicator. The electrical output of the
transmitter is equipped with a suppression lter and surge protective
elements. The block circuit of the transmitter is presented at Figure 3. The
Series 3400 and 3500 transmitters monitor the work of their hardware
resources to determine the correctness of calculations. In the event of an
error the 3400 and 3500 transmitters will display an error message on the
LCD and expose an alarm current to the output loop. Sensor electronics are
galvanically isolated from the measuring line. This galvanic isolation reduces
susceptibility of measurement interference and offers increased safety in
intrinsically safe and ameproof applications.
Communicator or converter electrical connections to transmitter
measuring lines. For successful communication with the transmitter the
resistance in measuring loop should be higher than 240 Ω. If necessary
install an additional resistor in the line. The connections to a
communicator or converter are presented in the diagrams. When
increasing resistance in the measuring loop it is important to note
that the resistance should be added in series with the loop not at the
transmitter terminals. (see 5.1.1)
Figure 3: 3400 and 3500 transmitters – block diagram
Connection of the 3400 and 3500 transmitter
Connect as shown in Figure 10a. If it is necessary to enable communication
with the transmitter, a communicator or converter can also be connected.
Optional connection congurations to communication devices are shown
below.
Communicator or converter connection near to a switch box
In order to enable communication with a transmitter at a distant location via
connection to a switch box, make sure that the resistance Ro from the point
of connection of the communicator to the power supply source lies within the
range of 240 to 1100 Ω. If necessary, an additional resistance can be
integrated into the line. Connect the communicator or converter as shown in
Figure 10a.
6.2. Enclosure of transmitters
Enclosures of 3400 and 3500 transmitters are made of die-cast aluminum
alloy or stainless steel and consist of a body and two screwed covers
(display and electrical connection), one of which is equipped with a glass
window. The enclosure provides two holes on the cable entries with 1/2˝
NPT thread (the unused hole is sealed with stopper). The housing consists
of two chambers separated by an electrical culvert. Housing is equipped
with both internal and external grounding terminals. The basic units of
transmitter are: the sensor module which converts the pressure signal into
an electrical signal, and the main electronic circuit board which transforms
this signal into a unied output signal.
6.3. Main electronics plate with display
Main plate electronics with display is placed in a casing of polycarbonate. It
is placed in the larger chamber where it is possible to change the display
position by 345° with 15° increments to required position (see Figure 4). In
the second chamber is a connecting board with protective devices and the
EMC lter.
SENSING
MODULE INPUT
CIRCUIT CONVERTER
A/C
MEMORY
PROCESSOR
MODEM
ISOLATION
OUTPUT
CIRCUIT NOISE
FILTER
POWER SUPPLY
MEASUREMENT
SYSTEM
LOAD RESISTANCE
MIN. 240 Ω
COMMUNICATOR
Ro
1
2
D
+
-
7
6.4. Measuring head
The measuring head is a measuring unit equipped with a silicon diaphragm
sensor. The sensor is placed in an enclosed silicone oil-lled space. On one
side of the culvert are the leads insulated in glass on the other side of the
separating diaphragm which separates the sensor from the medium (3500
transmitters have two separated diaphragms).
6.5. Separators
For pressure measurement of viscous, chemically reactive or hot process
mediums, the transmitter may be additionally tted with various types of
diaphragm seal.
The diaphragm seal transmits the process pressure via an inert uid ll
between the diaphragm of the seal and the diaphragm of the transmitter.
When remote diaphragm seals are tted, the pressure between the
diaphragm seal and the transmitter is via a lled capillary. The seal’s
construction is dependent on the process medium properties and the
application operating conditions.
7. PLACE OF INSTALLATION
7.1. General recommendations
7.1.1. The 3400 and 3500 transmitters can be installed both indoors and
outdoors. It is recommended that transmitters intended for outdoor use
be placed in a box or under cover.
7.1.2. The place of installation should be chosen in such a way as to allow
access to the device and to protect it from mechanical damage. In
planning the installation of the transmitter and conguration of the
impulse lines, attention should be paid to the following requirements:
• The impulse lines should be as short as possible with a sufciently
large cross-section, and free of sharp bends in order to prevent
blockages
• Where the medium is a gas, the transmitters should be installed
above the measuring point, so that condensation ows down towards
the site of the pressure measurement. Where the medium is a liquid
or where a protective liquid is used, the transmitters should be
installed below the place where the pressure measurement is taken
• The impulse lines should be inclined at a gradient of at least 10cm/m
• The levels of lling liquid in the impulse lines should be equal or kept
constant difference
• The conguration of the impulse lines and the valve connection
system should be chosen with regard to the measurement conditions,
requirements such as the need to reset the transmitters in position,
and the need for access to the impulse lines during water or gas
removal and ushing.
7.1.3. Where there is a risk of damage to the transmitter thorough impact
(which can result in extreme cases with the transmitter being separated
from the connecting pipework thus permitting leakage of medium),
appropriate means of protection should be applied for obvious safety
reasons and to avoid the possibility of sparking caused by being struck.
If the transmitter cannot be suitably protected then an alternative
mounting location should be utilized.
7.1.4. Attention should also be paid to possible installation faults which may
lead to measurement errors, such as connections which are not tight,
sediment blockage in lines which are too narrow, gas bubbles in a liquid
line or liquid column in a gas line etc.
Figure 4: Series 3400 and 3500 display rotation and conguration buttons
345Ø WITH 15Ø PITCH
HOLDERS
TO ROTATE
THE DISPALY
CONFIGURA
TION
BUTTONS
7.2. Low Ambient Temperature
When the solidication point of the liquid whose pressure is being measured
is higher than the ambient temperature, steps should be taken to protect
the measurement apparatus from freezing effects such as medium
expansion. This is particularly important in the case of open-air installations.
Protection is obtained by lling the impulse lines with a mixture of ethylene
glycol and water, or another liquid whose solidication point does not exceed
the ambient temperature. Thermal insulation can protect the transmitter
casing and lines only from brief exposure to low temperatures. Where the
temperature is very low, the transmitter and impulse lines should be heated.
7.3. High Medium Temperature
The 3400 and 3500 transmitters may be used to measure media with
temperatures of up to 120ºC. To protect the sensing module from
temperatures higher than 120ºC, long impulse lines are used to disperse the
heat and to lower the temperature of the sensing module.
Where it is not possible to use impulse lines of the required length, 3400 and
3500 transmitters with remote diaphragm seals should be used (see
Appendix III).
Data as per Appendix I apply for the Exd version and Appendix II apply for
the Exi version.
7.4. Electrostatic Risks
Lacquer on the enclosure, plastic rating plate, and teon on the diaphragm
seals are a non-conductive layer applied to a conductive surface.
Transmitters in this version should be located in a place where there is no
possibility of electrostatic charging. In particular by contact with the
electried dust particles that may leak or be blown out of the process if there
is risk of dust explosion.
7.5. Mechanical Vibration shocks. Corrosive Media
7.5.1. Transmitters should correctly work with vibrations with amplitudes to 1.6
mm and accelerations to 4g. If strong vibrations are carried via the
pressure line and disturb the measurement, elastic pulse lines or
transmitters with a remote diaphragm seal should be used.
7.5.2. Transmitters should not be installed in places where the diaphragm,
made of 1.4404/1.4435 (316L) steel, would be subject to corrosion by
the medium being measured.
8. INSTALLATION AND MECHANICAL CONNECTIONS
The 3400 and 3500 transmitters can operate in any position. When installed on an
object with a high-temperature medium, it is advantageous to mount the transmitter
in a horizontal position or downwards. This should be done in such a way that the
transmitter is kept away from the rising hot air. For small measurement ranges the
reading can be affected by the transmitter position, by the impulse lines
conguration, or the way in which they are lled with liquid. This error can be
corrected using the zero-setting function.
8.1. Series 3400 Installation and connections
8.1.1. The Series 3400 transmitters can be mounted directly on the rigid
impulse lines.
8.1.2. If the pressure is applied via a exible plastic tube, the transmitter should
be mounted on a support with Red Ø6-M reduction.
The types of the impulse tubes are to be selected depending on the
pressure measured value and the medium temperature.
8.1.3. Tighten the transmitter in the socket with a torque suitable for the type of
the gasket used and the pressure measured.
8.1.4. The 3400 transmitter can be installed using a universal “AL” holder
allowing to mount the transmitter in any position on the support or a
horizontal or vertical pipe Ø35... Ø65 (Figure 6).
PLUG [CORK] CABLE GLAND
TRANSPO
RT
PLUG
TRANSPOR
T
PLUG
Figure 5: 3400 and 3500 conduit entries
8
Figure 8: Example - How to install the Series 3500 transmitter on a vertical or
horizontal pipe
Figure 9: Example - How to install the Series 3500 transmitter with a valve
manifold to a 2˝ pipe
Figure 6: Example: how to install the Series 3400 transmitter
Figure 7: Example - How to install the Series 3500 transmitters with remote
diaphragm seals
8.2. Series 3500 Installation and connections
8.2.1. The Series 3500 transmitters can be installed using the Ø25 Fastener
(Figure 7) on an Ø25 pipe or on a at surface using an angle bracket
8.2.2. The Series 3500 transmitters with connecting cover (Figure 1) are
designed for installation on 3-valve or 5-valve manifolds to a 2˝ pipe or to
a at surface using the mounting bracket shown in Figure 8, and Figure 9.
Pressure may be transmitted to the installed device only after checking that
it has a measurement range which corresponds to the value of the measured
pressure. Ensure that gaskets have been properly selected and tted, and the
connectors have been properly screwed tight.
Attempts to undo the screws or xing connector pipes on a transmitter under
pressure may cause the medium to leak and create hazards for the personnel.
When disassembling the transmitter, it is necessary to disconnect it from the
process pressure or bring the pressure to atmospheric level, and to take
particular care and precautions in case of media which are highly reactive,
caustic, explosive or otherwise hazardous to personnel. If necessary, ush
this part of the system.
Transmitters with ange diaphragm seals are to be installed on the
corresponding counter anges on the facility.
It is recommended that the user matches the screw joint material to the
pressure, temperature, ange material and seal to ensure tightness of the
ange joint in the expected operating conditions.
Screws complying with ISO 261 are to be used for anges used in the 3400
and 3500 transmitters.
Additional data concerning the diaphragm seals are specied in Appendix III.
FASTENING
ON A PIPE
FASTENING
TO A WALL
80
45
Ø35 - Ø65
182
40
72
110
4 HOLES
Ø9
173.5 IN HS VERSION
175.5 IN EXD VERSION
187.5 IN HS AND EXD VERSION
161.5
FASTENER FOR FITTING DIFFERENTIAL
PRESSURE TRANSMITTER TO A 2˝ PIPE
OF TO A WALL
97
72
Ø2˝
133
10.5
51.25
Ø9 4 HOLES
Ø38
91.5
18 18
132
63
58
34.5
50
34.5
161.5
173.5 FOR HS
VERSION
175.5 FOR
EXD VERSION
187.5 FOR HS
AND EXD VERSION
FASTENER FOR FITTING
DIFFERENTIAL PRESSURE
TRANSMITTERS WITH A VALVE
MANIFOLD TO A 2˝ PIPE
L = 192 - IN NORMAL A
ND EXI VERSION
L = 204 - IN HS VERSION
L = 218 - IN HS AND EXD VERSION
L = 206 - IN EXD VERSION
72 Ø2˝
166
208
L
L + 31
L + 68
265
9
9. ELECTRICAL CONNECTION
9.1. General recommendations
9.1.1. It is recommended that twisted pair cabling be used for the signal lines.
If the transmitter and signal line are subject to a large amount of
electromagnetic interference, then shielded cable should be used. The
signal wires should not run alongside network power supply cables or
near to large electrically-powered devices.
The devices used together with the transmitters should be resistant
to electromagnetic interference from the transmission line in accordance
with compatibility requirements. It is also benecial to use anti-
interference lters on the primary side of the transformers, the power
supplies used for the transmitters and apparatus used in conjunction with
them.
9.1.2. Moisture buildup inside the transmitter casing can cause damage.
When the isolation of the wires in the cable gland is ineffective (for
example, when single wires are used) the opening of the gland should
be carefully sealed with an elastic sealing compound to obtain IP66
protection. The section of signal cable leading to transmitter gland is to
be formed as a drip loop, the lowest point of which is to be situated
below the cable inlet to the gland to prevent condensate ingress to the
gland.
9.2. Electrical connections for Series 3400 and 3500
The 3400 and 3500 transmitters are to be connected as shown in Figure
10a – 10d. In 3400 and 3500 transmitters, a 240 Ω resist or is
permanently tted in series in the transmitter’s current circuit and blocked
up with jumper between <SIGNAL –> and <TEST –> as shown in Figure 10a
and 10b. When the resistance in the current loop is lower than 240Ω it is
necessary to remove the jumper.
Communicator or converter connection to the transmitter’s terminals
In order to enable local communication by connecting a communicator or
converter to the transmitter’s terminals, make sure that the resistance Ro
from the transmitter’s terminals to the power supply source lies within the
range of 240-1100 Ω. If so, connect the communicator or converter to the
terminals <+> <-> as shown in Figure 10b.
Communicator or converter connection to the transmitter’s terminals
In order to enable local communication by connecting a communicator or
converter to the transmitter’s terminals, make sure that the resistance Ro
from the transmitter’s terminals to the power supply source lies within the
range of 240-1100 Ω. If so, connect the communicator or converter to the
terminals <+> <-> as shown in Figure 10b.
Figure 10: Electrical connections for 3400 and 3500 transmitters
Figure 10a: The link of transmitter and communicator or converter to current
line by the switch box (in case of the resistance in current loop is higher than
240 Ω)
Figure 10b: The link of transmitter and communicator or converter to
<SIGNAL+> <SIGNAL-> transmitter terminals in case of the resistance in
current loop is higher than 240 Ω
Figure 10c: The link of transmitter and communicator or converter to
<SIGNAL+> <TEST+> transmitter terminals in case of the resistance in current
loop is smaller than 240 Ω
Figure 10d: The link of transmitter and communicator or converter to
<SIGNAL+> <SIGNAL-> transmitter terminals in case of the resistance in
current loop is smaller than 240 Ω
RYS. 2A
Ro
MA
4-20 mA
+
_
COMMUNICATOR
CURRENT LOOP
JUMPER HART/USB
CONVERTER OR
CONVERTER HART/RS232
EX POWER
SUPPLY
CONTROL CABINET
RYS. 2B
Ro
MA
4-20 mA
+
_
COMMUNICATOR
CURRENT LOOP
JUMPER
HART/USB CONVERTER OR
CONVERTER HART/RS232
EX POWER
SUPPLY
RYS. 2C
4-20 mA
+
_
COMMUNICATOR
CURRENT LOOP
Ro
MA
JUMPER
HART/USB CONVERTER
OR CONVERTER
HART/RS232
EX POWER
SUPPLY
4-20 mA
+
_
COMMUNICATOR
CURRENT LOOP
JUMPER
Ro
MA
HART/USB CONVERTER
OR CONVERTER
HART/RS232
EX POWER
SUPPLY
10
If Ro in current loop is lower than 240Ω is necessary to connect 240Ω
resistor to current loop by remove jumper from <SIGNAL-> and <TEST->
terminals.
After communication jumper should came back at its place.
9.3. Protection from excess voltage
9.3.1. The transmitters may be in danger from excess voltage caused by
connection faults or atmospheric electrical discharge.
Protection from excess voltage between the wires of the transmission
line is provided by TVS diodes installed in all types of transmitter (see
the table, column 2).
9.3.2. External protective devices may also be used. When the transmission
lines are long, it is advantageous to use one protective device near
the transmitter (or inside it), and another near entry points to other
devices used in conjunction with it.
9.3.3. The voltage in the protective elements must not exceed the maximum
permitted values given in column 2 of the table.
9.4. Earthing
The transmitters are tted with internal and external earth terminals.
10. SETTING AND REGULATION
3400 and 3500 transmitters are factory calibrated to the range stated in the
order or to the basic range. After installation, the transmitter’s zero-point may
drift and require adjustment.
This applies particularly in cases where the measurement range is small, where
the impulse lines are lled with a separating liquid or where 3400 and 3500
transmitters are used with remote diaphragm seals.
10.1. Transmitter Range, Basic Range. Denitions
10.1.1. The maximum range of pressure, or differential pressure, which the
transmitter can measure is called the “basic range” (for specications of
basic ranges see section 5.2.1 and 5.3.1).
The width of the basic range is the difference between the upper and
lower limits of the basic range. The internal characteristic conversion
curve for the basic range is coded in the transmitter’s memory.
This is the reference curve used when making any adjustments which
affect the transmitter’s output signal.
10.1.2. When the transmitter is in use the term “set range” is used. The set
range is the range whose lower end-point corresponds to an output
current of 4 mA and whose upper end-point corresponds to a current of
20 mA (or 20 mA and 4 mA respectively when the conversion curve is
inverted). The set range may cover the whole of the basic range or
only a part of it. The width of the set range is the difference between its
upper and lower end-points. The transmitter may be set to any range
within the basic range of pressure values, subject to the restrictions set
out in the table in section 5.2.1 and 5.3.1.
10.2. Conguration and Calibration
10.2.1. The transmitter has features which enable metrological and identication
parameters to be set and altered. The congurable metrological
parameters affecting the transmitter’s output current include the
following:
a) unit in which the measured pressure is expressed on the display
b) upper end-point of the set range
c) lower end-point of the set range
d) time constant
e) type of characteristic curve: linear or radical
Parameters of an informational nature which cannot be altered include
the following:
f) upper limit of the basic range
g) lower limit of the basic range
h) minimum range
10.2.2. Other identication parameters, not affecting the output signal, include:
device address, device type code, factory identication code, factory
device code, number of preambles (3-20), UCS, TSD, program version,
electronics version, ags, serial number, label tag, description tag, date
tag, message, record number, and sensing module number.
The process of setting the parameters listed in 10.2.1 is called
“Conguration”.
10.2.3. It is possible to carry out a “pressure zeroing” procedure, for example to
compensate for measurement deviation caused by a change in position
during the transmitter installation.
The transmitter may also be calibrated, by taking readings with the
input pressure controlled using a standard device. These process and
zero-point adjustments are referred to as “Calibration”.
10.2.4. Conguration and Calibration of the transmitter are carried out using
a KAP communicator, certain HART communicators or a PC with HART/
RS232 converter and “Raport 2” software.
Together with the “Raport 2” conguration software there is “INTERVAL
LINEARIZATION” software supplied to enable the input of 21-point
nonlinear functional characteristics to the transmitter.
A description of the functions of the KAP communicator is contained in
the KAP Communicator Operating Manual, and information on the
HART/RS232 converter or HART/USB converter can be found on the
converter user manual.
10.2.5. TRANSMITTER CONFIGURATION WITH USING ITS BUTTONS AND
LOCAL MENU
10.2.5.1. Local menu - structure. Local conguration of transmitters.
If the option of local conguration is active, the operator can change
the transmitter set using the buttons below the display. To gain
access to these buttons the operator must unscrew the cover. The
display position can also be adjusted with the cover removed (see
Figure 4).
To enter changes at the local set mode, press one of the buttons
and hold it for 4 seconds. If after pressing the button the display
reads the message ERR_L16, local conguration of the transmitter
is switched off. In order to switch on local conguration it is
necessary to use the KAP-03 calibrator or a PC with HART
communication protocol.
The buttons are signed with symbols: [↑] [↓] [◙]
After pressing any of the buttons for 4 s the display will read “EXIT”.
If you will conrm this message by pressing and holding button [◙]
by 1 s, you will leave the local conguration menu. If you do not
conrm, you can navigate the menu and change settings using the
method listed below.
Pressing button [↑] moves up in tree’s structure.
Pressing button [↓] moves down in tree’s structure. Pressing [◙] for
1 second will advance into selected parameter.
No action in the menu for more than 2 minutes will cause automatic
exit from the menu and display the process variable.
The menu tree structure for local conguration of the 3400 and
3500 transmitters is shown below.
INTERNAL PROTECTION OF TRANSMITTERS
Type of transmitter
3400 and 3500
Protection between wires (TVS diodes) – nominal voltage
68V DC (for normal and Exd version 39V DC (for Exi version)
11
EXIT
PV ZERO
SET LRV
SET URV
UNIT
DAMPIN
TRANSF
%SQRT
LCD 1VR
LCD 2VR
LCD 2DP
FACTOR
RESET
MID WP
PV ZERO
DONE
BACK
BYVALU
BACK
BYPRES
BACK
BYPRES
BYVALU
DONE
+/- ______
+/-
DONE
______
BACK
IN H2O
IN HG
MM HG
PSI
BAR
FT H2O
MM H2O
KG/SQCM
PA
KPA
MBAR
G/SQCM
TORR
ATM
MMH2O4
DONE
M H2O
INH2O4
10[S]
DONE
0[S]
2[S]
5[S]
30[S]
BACK
SPECIA
DONE
LINEAR
SQRT
SQUARE
BACK
0.8%
DONE
0.2%
0.4%
0.6%
1.0%
0.0%
BACK
CURREN
DONE
PERCEN
BACK
NOUNIT
DONE
USER
UNIT
SENS_T
CPU_T
PRESS
BACK
XXXXX.
DONE
BACK
XXXX.X
XXX.XX
XX.XXX
X.XXXX
DONE
RECALL
BACK
RESET
DONE
BACK
ON
OFF
DONE
BACK
MENU
.
.
.
.
.
12
The selected unit should be conrmed by pressing [◙] for 1 second.
After conrmation the transmitter will display “DONE” or report
the error number. The “← BACK” option allows navigation up one
level in the tree structure.
10.2.5.2. Local Menu, error reports.
During command entry, an error code may be displayed indicating
an invalid command. A shortened list of error codes is shown below.
ERR_L07 [in_write_protected_mode] This error will display when
attempting to change settings in local menu with write
protection enabled. In order to make changes to the
settings the transmitter must be equipped with local
menu option as well as having write protection
disabled. It is possible to modify write protection using
the KAP-03 communicator or a PC with HART
communication software using library EDDL.
• default setting:
Local Menu service: Switched on write
Protection: Switched off
ERR_L09 [applied_process_too_high] This error will display when
process pressure exceeds the upper range end.
ERR_L10 [applied_process_too_low] This error will display when
process pressure is below the lower range end.
ERR_L14 [span_too_small] This error will display when
attempting to set the upper and lower range ends too
close together.
ERR_L16 [acces_restricted] This error will display when the user
attempts to access the local conguration menu when
it is switched off. To switch on local conguration menu
it is necessary to use KAP-03 communicator or a PC
with HART communication software using library
EDDL.
Warning! ERR_L16 error code may also be displayed
due to a zeroing attempt of an absolute transmitter.
WNG_L14 [WARNING! New Lower Range Value Pushed !] This
error will display when upper range end will cause the
lower range end to be changed.
10.2.6.View local LCD display
Changing the display options is possible using local conguration
buttons, or remotely using a communicator.
The 3400 and 3500 transmitter display is shown below.
The 3 main displays:
• LCD1 – The current or percentage output display. Depending on
conguration the current value in the 4-20mA loop or the current
percentage output will be displayed.
• LCD2 – This section of the LCD can display any of the following
depending on display conguration. This section can display the
measured pressure value, the calibrated pressure value
based on user selected units, the process variable units, user units,
pressure sensor/CPU temperature, the MENU announcement and
information, or the warning announcement display. When the
measured pressure value or calibrated pressure value are displayed,
a “-“ sign can be displayed indicating a negative value. The decimal
position can be set through the local MENU or remotely using a
communicator. The 3400 and 3500 make it possible to set up custom
units. In order to do this it is necessary to use a communicator or PC
software. Simply write the corresponding low value and high value of
the range and enter a unit name. When using a custom unit the
rescale value will be visible on the display.
• LCD3 – This section acts as an information display. During normal
operation base units or user units will be displayed here. In the
event of an error in operation this section will display an error code.
In manual mode the local menu displays conguration options. It also
displays errors related to the implementation of commands in the
local menu.
DESCRIPTIONS
Local Menu Submenu Notice
EXIT Return from the local Menu to the normal operation of
the transmitter
PVZERO Pressure zeroing
SETLRV
BYPRES
BYVALU
+/-
Setting the lower range of values set by the done
pressure (no change of span)
Set across set pressure
Set across inscribing of value (after approval at display
the current value will appear before the passage in edit
mode)
Select and conrm sign introduced parameter. Introduce
in sequence, digit after digit, 5 digital numbers with or
without a decimal point. After conrmation the 5th digit of
the parameter transmitter will conrm the command by
displaying “DONE” or the corresponding error code. The
parameter will be written down in units “UNIT”
SETURV Set the upper range value by the done pressure
UNIT
IN_H2O
IN_HG
FT_H2O
MM_H2O
MM_HG
MBAR
G/SQCM
KG/SQCM
KPA
TORR
ATM
M_H2O
MPA
INH2O4
MMH2O4
Menu process variable units
Inches of water at a temperature of 68°F
Inches of mercury at a temperature of 68°F
Foot of water a temperature of 68°F
Millimeters of water at a temperature of 68°F
Millimeters of mercury at 0°C
Millibar
Grams per square centimeters
Kilogram per square centimeters, technical atmosphere
Kilopascal
Tor (mm Hg)
Physical atmosphere
Meter of water at 4°C
Megapascal
Inches of water at a temperature of 4°C
Millimeters of water at 4°C
DAMPIN Set of the solid temporary suppression of the process
variable
TRANSF
LINEAR
SQRT
SPECIA
SQUARE
Set of the current output form
Linear
Square root
User’s special
Square
%SQRT Square root characteristic cut-of point setting
LCD1VR
CURREN
PERCEN
Assigning a process variable to LCD1
LCD1 will display current value in current loop in [mA]
The percent value of the output signal will display on
LCD1- in [%]
LCD2VR
PRESS
USER
SENS_T
CPU_T
Assigning a process variable to LCD2
The pressure value will display on LCD2
The user’s units will be displayed on LCD2. Scaling
of the user range and record of the user units can be
made using a computer or communicator, see → HART
command No. 244.245
The current temperature of pressure sensor will display
on LCD2
The current temperature of the transmitter CPU will
display on LCD2 - in [°C]
LCD2DP Set the decimal point position on LCD2. In a situation
where the value provided to display on the display
LCD2 cannot be displayed properly due to the position
of the decimal point, this is indicated by displaying the
four ashing dots • • • • •. In this case, you must enter
to the local menu setting and move the decimal point
respectively to the right.
FACTOR Back to factory settings (removing of current and
pressure calibrations)
RESET Reboot your transmitter
MID_WP
ON
OFF
Blocking records / change the parameters associated
with transmitter metrology
Switch on blocking
Switch off blocking
LCD2
LCD1 LCD3
Figure 11: LCD display sections
13
Display backlighting - Local display is equipped with a backlight.
Figure 4 shows how to change the display position by rotation.
After conguration it is important to protect the transmitters using
command HART [247]. During operation, the transmitter should
be protected prior to entries. This prevents accidental or intentional
changes to conguration data. The protection function is accessible in
KAP03 communicator, “Raport 2” software, as well as, in applying DD or
DMT programs libraries.
10.2.7. Remote conguration
Remote conguration is possible with KAP-03 communicator or PC
software. Measuring circuit should be in accordance with Figure 10.
10.2.8. Conguration of Series 3500 transmitters for ow measurements with an
orice plate.
It is important to properly place the transmitter based on the type of
measured medium, otherwise it may negatively impact the
measurement.
The transmitter should be located below the pipeline in order to prevent the
accumulation of air bubbles in the connecting line.
The transmitter should be located above the pipeline in order to enable the
condensate to drain from the pipeline. Function describing the relationship
between mass ow and differential pressure is:
Qm =
Function describing the relationship between volume ow and differential
pressure is:
Qm =
ρ – medium density
Δp – differential pressure
Orice ow meters are based on the square root output signal from the
differential pressure transmitters. To achieve this function you should:
• Install the 3500 transmitter to the ow measurement workstation with orice;
• Make the transmitter zeroing at the workstation; remotely using computer
and Raport 2 software or locally with transmitter buttons according to
10.2.5 of the Manual;
• Set the square root output transmitter signal and the cutoff point [in % FS];
remotely using computer and Raport 2 software according to 10.2.4 or
locally with transmitter buttons (up to 1% only) according to 10.2.5 of the
Manual.
For transmitters with software from 1.9 version, the cutoff point setting means
that when the pressure is increasing from 0 to set cutoff point (n%FS), the
output signal is zero (4 mA), but in the setting cutoff point and above its, the
transmitter output signal passes to the square root output for the current
transmitter output, and to the linear output for the HART transmitter output. If
the pressure on orice falls below the n%FS setting minus 0.2% (hysteresis),
the output transmitter signal will switch to zero (4 mA). The cutoff operation
algorithm on the analog output signal example is shown at the below gure.
Description:
I [mA] Analog output signal; loop current [4-20 mA] or A [%]
n% Cutoff point at square root output transmitter signal
PV or Z [%] Axis of the process variable in user unit or in percent of the set
range
LRV Lower range value; the lower value of the pressure set range
(corresponding to the 4 mA current output signal)
URV Upper range value; the upper value of the pressure set range
(corresponding to the 20 mA current output signal)
The device conguration example:
Transmitter conguration parameters
• Basic range 0 to 100 kPa
• Set range 0 to 50 kPa
• Cutoff 5% of the set range
Assemble the measuring system in accordance with Figure 10 and run Raport2
according to IO.RAPORT2:
• Set the zero of the transmitter – tab page: Basic Commands → Zeroing;
• Set the width of the set range the transmitter to a value of 0-50 kPa - tab
page: Common Parameters → Lower Range Value and Upper Range Value
• Set the square root output signal of transmitter – tab page: Common
Parameters → Transfer Function
• Enter 5 in the parameter area inection point – tab page: Common
Parameters → Start point rad
• Save the data to the transmitter (button: Write Parameters).
The cutoff function will be implemented to 5% of set range with pressure
increase and to 4.8% of set range with a pressure decrease
10.3. Alarms
The alarms indicate the operating parameters of the transmitter (maximum
temperature, pressure) are being exceeded, and failures of the electronic
components. You can see the diagnostic checklist of alarm statuses by using
RAPORT 2 software after reading transmitter parameters. In this way, the values
of the alarm current in the line can also be set to <3.7 (low) or >21.5 mA (high),
as well as a suitable conguration of alarms in the transmitter can be ordered
from the manufacturer.
Due to extensive diagnostic mechanisms, the alarms were grouped by type in
order to simplify the user interface. The user can decide what type of alarm will
trigger the alarm current in the current loop. It is recommended for the transmitter
to operate with the alarm current function turned on.
Example:
The user can also specify the type of alarm current: >21.5 mA (high alarm) or
<3.7 mA (low alarm).
2ρΔp
2Δρ
ρ
Figure 14: Series 3500 transmitter analog output signal
with setting cutoff point in n%
Exceeding the high limit or the low limit of the specied
operating range by 50% will result in LCD2 displaying
“ o V E r “ or “ u n d E r “ respectively. Such situation is encountered
most often when using a differential pressure transmitter, created when
supplying a large static pressure with a blockage or a leak in one of the
capillaries.
WARNING
PIPELINE
PIPELINE
I [mA]A[%]
100%20
40%
LRV
URV
(n - 0.2) % Z [%]
PV
Figure 12: Mounting diagram for liquid and steam ow
Figure 13: Mounting diagram for gas ow
14
Example:
Exceeding the basic range of the pressure by more than 50% is signaled on the
display using the OVER ‘ouEr’ or UNDER ‘undEr’ message.
The 3400 and 3500 (Ex) transmitters generate an process variable analogue
signal in the range ≥ 3.8-3.9 mA …≤ 20.5 mA). Depending on the settings this
signal may be proportional or inversely proportional to the measured pressure or
pressure difference. This current is detected by the logic controller connected to
the current loop, which monitors whether the supplied signal is:
• Within the pressure or differential pressure measurement range between the
lower range value (LRV) and the upper range value (URV)
Range (≥ 4.0 mA …≤ 20.0 mA) with simple characteristics (4-20 mA)
Range (≤ 20.0 mA …≥ 4.0 mA) with inverse characteristics (20 to 4 mA)
• Within the pressure or differential pressure measurement range below the
lower range value (LRV) Range (≥3.9 mA … < 4.0 mA) for Normal mode with
simple characteristics (4-20 mA) Range (≥3.8 mA … < 4.0 mA) for Namur
mode with simple characteristics (4-20 mA) or Range (> 20.0 mA …≤ 20.5
mA) for Normal mode with inverse characteristics (20 to 4 mA) Range (> 20.0
mA … ≤ 20.5 mA) for Namur mode with inverse characteristics (20 to 4 mA)
• Within the pressure or differential pressure measurement range above the
upper range value (URV). Range (> 20.0 mA … ≤ 20.5 mA) for Normal mode
with simple characteristics (4-20 mA) Range (> 20.0 mA … ≤ 20.5 mA) for
Namur mode with simple characteristics (4-20 mA) or Range (≥3.9 mA … <
4.0 mA) for Normal mode with inverse characteristics (20 to 4 mA) Range
(≥3.8 mA … < 4.0 mA) for Namur mode with inverse characteristics (20-4 mA)
or Range (< 3.7 mA) for type “L” alarm signal Range (> 21.5 mA) for type “H”
alarm signal
11. INSPECTIONS AND SPARE PARTS
11.1. Periodic service
Periodic inspections should be made in accordance with the regulations
to which the user is subject. During inspection, the pressure connectors
should be checked for loose connections and leaks, the electrical
connectors should be checked with regard to tightness and the state of the
gaskets, and cable glands, and the diaphragm seals should be checked for
tarnishing and corrosion.
Check the characteristic conversion curve by following the procedures for
“Calibration” and, where appropriate, “Conguration”.
11.2. Other services
If the transmitters are installed in a location where they may be exposed
to mechanical damage, excess pressure, hydraulic impulses, excess
voltage; or the diaphragm may be in danger from sedimentation,
crystallization, or erosion; inspections should be carried out as required.
Where it is found that the signal in the transmission line is absent or its value
is incorrect, a check should be made on the line and its terminal
connections. Check whether the values of the supply voltage and load
resistance are correct.
If a communicator is connected to the power supply line of the transmitter, a
fault in the line may be indicated by the message “No response” or “Check
connection”.
If the line is in order, check the operation of the transmitter.
11.3. Cleaning the Diaphragm Seal, Overloading Damage
11.3.1. Sediment and dirt which have formed on the diaphragm in the course
of operation must not be removed by mechanical means, as this may
damage both the diaphragm and the transmitter itself.
The only permitted method is the dissolving of sediment.
11.3.2. Sometimes transmitters malfunction due to damage caused by
overloading, e.g. in case of:
• Application of excessive pressure
• Freezing or solidication of the medium
• Action of a hard object, such as a screwdriver, on the diaphragm
Usually in such cases the symptoms are such that the output current
falls below 4 mA or rises above 20 mA, and the transmitter fails to
respond to input pressure.
11.4. Spare parts
Parts of the transmitter which may be subject to wear or damage and
require replacement: cover gasket.
Other listed parts, due to the specic features and requirements of
explosion-protected devices, may be replaced only by the manufacturer or
by a third party authorized by the manufacturer.
12. PACKING, STORAGE AND TRANSPORT
The transmitters should be packed singly or in sets, in such a way as to protect
them from damage during transportation.
The transmitters should be stored in multiple packs under cover, in a place free
of vapors and reactive substances, with temperature and humidity not
exceeding the limits specied in 5.2.2 for Series 3400 or 5.3.2 for Series 3500
Transmitters with uncovered diaphragm or seal connectors, stored without
packaging, should have covers to prevent damage to the diaphragm.
During transportation, the transmitters should be packed and secured so as
to prevent them from shifting. Any means of transport may be used provided
direct atmospheric effects are eliminated.
13. GUARANTEE
The manufacturer reserves the right to make constructional and technological
changes which do not lower the quality of the transmitters
14. SCRAPPING, DISPOSAL
Waste or damaged transmitters should be dismantled and disposed of in
accordance with Directive (2012/19/EC) on waste electrical and electronic
equipment (WEEE) or returned to the manufacturer.
15. ADDITIONAL INFORMATION
15.1. Related documents
• IO.KAP-03.02 – Communicator User’s Manual
• IO.RAPORT 2 – “Raport 2” software and HART/RS232 converter User’s
Manual
• DTR.HB.01 – HART/USB converter User’s Manual
• “INTERVAL LINEARIZATION” software
18 132 18 133
L91.5
153
L = 38.5
L
RYS.3.
PD ELECTRICAL
CONNECTOR, IP65
DIN 43650 CONNECT
OR
CABLE Ć6...Ć8 OR
CABLE Ć8...Ć10
LOCK PREVENTING
ROT
ATION
OF
THE CASING
EARTHING
TERMINAL
2 X M6
M20 X 1.5 CABLE GLAND
CABLE Ć6...Ć12
HS VERSION
Figure 16: Series 3400 smart pressure transmitter
A
LARM_L
NORMAL
OPERATING
RANGE
NAMUR
3.8 mA
[NAMUR] LRV 20.5 mA
[NAMUR]
URV
4 mA 20 mA
3.9 mA
[NORMAL]
20.5 mA
[NORMAL]
<3.7 mA >21.5 mA
ALARM_H
Figure 15: Alarm output operation
15
APPENDIX I Flameproof –FP Option
Introduction
This Appendix applies to Series 3400 Smart Pressure Transmitters and Series 3500
Smart Differential Pressure Transmitters with –FP sufx (ATEX/IECEx ameproof
construction).
This Appendix contains supplementary information relating to the FP ameproof
versions compatible with ATEX Directive 2014/34/EU. During installation and use of
ameproof transmitters, reference should be made to the Installation and Operating
Manual in conjunction with this Appendix.
1. Use of 3400 and 3500 transmitters in hazardous locations
1.1 The transmitters are produced in accordance with the requirements of the
following standards:
EN 60079-0:2012+A11:2013, EN 60079-1:2014, EN 60079-11:2012, EN
60079-26:2015,
EN 60079-31:2014;
IEC 60079-0:2012, IEC 60079-1:2014, IEC 60079-11:2011, IEC 60079-
31:2013, IEC 60079-26:2006.
1.2 The transmitters may operate in areas where there is a risk of explosion, in
accordance with the rating of the explosion protection design.
Depending on type and device version the following markings are used:
II 2G Ex ia/db IIC T6/T5 Gb
II 2D Ex ia/tb IIIC T85°C/T100°C Db
KDB 17 ATEX 0056X
Ex ia/db IIC T6/T5 Gb
Ex ia/tb IIIC T85°C/T100°C Db
IECEx KDB 17.0008X
Marking T6 and T85°C applies to range -40ºC <Ta ≤ 45ºC
Marking T5 and T100°C applies to range -40ºC <Ta ≤ 75ºC
1.3 Transmitter category and hazard areas.
The ATEX category 1/2G (1/2D) and IECEx Equipment Protection Level
(EPL) Ga/Gb (Da/Db) means that the transmitter may be installed within
Type 1 (21) or Type 2 (22) hazardous zones. The transmitter process
connections may connect to a Type 0 (20) zone type (see the Figure 1a
below for an example). The category 2G (2D) and EPL Gb (Db) means that
the transmitter together with process connections may be installed within a
Type 1 (21) or Type 2 (22) hazardous zone
2. Identifying marks
Flameproof transmitters must have a nameplate containing the following
information:
a.) Mark and number of notied body
b.) Mark, and designation of explosion protection type and certicate
number
c.) Supply voltage
d.) Electrical connection type
e.) Year of manufacture
f.) Temperature use range
3. User information
Together with the ordered transmitters, the user will receive:
a.) Product certicate
b.) Declaration of conformity
c.) Installation and operating manual
Items b.) and c.) are also available on www.dwyer-inst.com.
4 Installation and power supply
4.1 Read and understand all information provided in this Appendix before
attempting installation of the 3400 Smart Pressure Transmitter or 3500
Smart Differential Pressure Transmitter.
4.2. Electrical connection of the transmitter must be made according to this
Appendix. Transmitter electrical installation should be in accordance with
engineering standard requirements. Electrical connections of transmitters
in hazardous locations should be made by personnel who have
indispensable knowledge and experience in this area. Earth clamps must be
used to earth transmitters. In the event that transmitters come in contact
with structural metal parts or pipes which are connected to the equipotential
bonding system, transmitters are not required to be earthed.
4.3 Transmitters must be supplied from DC source with maximum voltage 55 V,
from a transformer or other device with strengthened isolation between
the primary and secondary windings, with maximum a voltage of 250 V. It is
the responsibility of the user to provide power matching these requirements.
Units without sufx –FP or -IS are not Directive 2014/34/EU (ATEX)
compliant. These units are not intended for use in potentially
hazardous atmospheres in the EU. These units may be CE marked for other Directives
of the EU.
NOTICE
Figure 1A
ZONE 1 ZONE 2 SAFE ARE
A
PRESSURE
TRANSMITTER
PRESSURE TRANSMITTER
OR DIFFERENTIAL
PRESSURE TRANSMITTER
ZONE 1 OR 2 SAFE
AREA
Figure 1B
ZONE 0 SAFE ARE
A
ZONE 1 OR 2
PRESSURE
TRANSMITTER OR
DIFFERENTIAL
PRESSURE TRANSMITTER
HAZARDOUS LOCATIONS, FLAMEPROOF (-FP SUFFIX)
• Keep cover tightly closed when in operation.
• De-energize supply circuit before opening.
• After de-energizing, delay 3 minutes before opening.
• To prevent ignition in hazardous locations, replace cover
before energizing the electrical circuits.
• Do not remove covers to change display or backlighting while in
hazardous location.
• Device is not eld-repairable and should be returned to
Dwyer Instruments, Inc. if repair is needed.
In areas where there is a risk of dust explosion, transmitters in
aluminum alloy casing covered with lacquer and transmitters
with plastic rating plates or with diaphragm seals covered by Teon should be
installed in way to prevent electrostatic charging according to p. 7.4.
WARNING
WARNING
GENERAL
• Protection provided by the equipment may be impaired if the equipment is
used in a manner not specied by the manufacturer.
• Risk of electric shock – disconnect supply circuit before opening. Keep unit
tightly closed while circuits are live.
• Suitable insulation between signal wiring and hazardous voltage wiring must
be provided.
CAUTION
16
4.4 Transmitters may be used in ambient temperatures (Ta) between -40ºC < Ta
≤45ºC for class T6 or between -40ºC < Ta ≤ 45°C for class T6 or between
-40°C < Ta 75ºC for T5.
4.5 Transmitter sensor diaphragm should not be subject to damage during
installation and use. The diaphragm is made from 1.4404/1.4435 (316L) or
Hastelloy thin foil and cannot be subject to incompatible materials.
4.6 With regard on kind of casing material (light alloy with large aluminum
content), the user is obliged to assure, that possibility of hitting casing does
not step out in place of transmitter installation.
4.7 In transmitter casing are two holes to assembly of cable glands from thread
M20x1.5 or 1/2 NPT.
4.8 Normally transmitters are delivered without installed glands but with blank
plugs (corks) in the second hole. The list of cable glands and plugs
acceptable with production documentation and accepted by certicate
station is specied in Table 1 and Table 2. The user should install cable
glands according to Tables 1 and plugs according to Table 2 (if plugs aren’t
installed) or other accordance with ameproof standards.
4.9 Signal cable must be shielded; if the cable is not shielded, it must have a
round cross-section with moisture-proof insulation.
The general principles of connection and use of ameproof transmitters
should be compatible with principles and relating standards for casing
devices in this Appendix and EN 60079-14,
EN 60079-17 and IEC 600079-14, IEC 60079-17.
4.10 Routine maintenance must include a check of the security of covers and
the cable glands and the fastening of the cable in the glands. The casing,
supply line, nameplate, and diaphragm must be inspected for mechanical
damage. During maintenance it is recommended that the threads of the
covers be lubricated with non-acidic grease.
5. Electrical connections
W.E. Anderson
Attn. Repair Department
250 High Grove Rd
Grandview, MO 64030
In case of transmitter calibration outside the hazardous zone, connect as
follows:
<SIGNAL+> and <TEST+> terminals. Transmitter is provided with a
communication resistor (RD = 240 Ω), closed with a jumper at <SIGNAL-> and
<TEST-> terminals installed by manufacturer. RD resistor can be used when it is
necessary to communicate with transmitter from its terminals and the load
resistance (Ro) in current loop is lover then 240 Ω. If so, <SIGNAL-> and <TEST-
> terminals have to be open.
Figure 2
Figure 3: How to lock the casing of Series 3400 and 3500 transmitters
Do not remove covers to change display or backlight while
explosive atmosphere is present. A method to block the
cover is shown in Appendix I Figure 3.
CAUTION
Units in need of repair should be returned to the following
address, freight prepaid. Include a brief explanation of the
problem and any relevant application information.
NOTICE
Special conditions for safe use: (Refer to EU-Type Certicate KDB
17 ATEX 0056X)
• Permissible gap of ameproof joint “L4” of Appendix I Figure 4 is smaller than dened
in EN 60079-1:2007 and cannot be greater than the value passed. See Table 1 for
ameproof joint specications.
NOTICE
TABLE 1: PERMITTED CABLE GLANDS
Type Producer Screw Feature
Other
Making
No. of
Certicate
501/423
501/421
ICG 623
501/453
501/453/RAC
501/453
Universal
ICG 653
8163/2-A2F
A2F, A2FRC,
SS2K
E1FW, E1FX/Z,
E2FW, E2FX/Z
T3CDS,
T3CDSPB
PX2K, PXSS2K,
PX2KX, PXB2KX
HAWKE
HAWKE
HAWKE
HAWKE
HAWKE
HAWKE
HAWKE
STAHL
CMP-
Products
CMP-
Products
CMP-
Products
CMP-
Products
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
M20x1.5
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Exd IIC
Dimension
OS, O, A
Dimension
OS, O, A
Dimension
OS, O, A
Dimension
OS, O, A
Dimension
OS, O, A
Dimension
OS, O, A
Dimension
OS, O, A
Baseefa 06
ATEX 0056X
Baseefa 06
ATEX 0056X
Baseefa 06
ATEX 0058X
Baseefa 06
ATEX 0056X
Baseefa 06
ATEX 0056X
Baseefa 06
ATEX 0057X
Baseefa 06
ATEX 0058X
SIRA06A-
TEX1188X
SIRA06A-
TEX1097X
SIRA06A-
TEX1097X
SIRA06A-
TEX1283X
SIRA06A-
TEX1097X
*
*
*
*
*
*
*
(*) for special cable only.
TABLE 2: PERMITTED PLUGS
Type Producer Screw Feature
Other
Making
No. of
Certicate
475
477
HAWKE
HAWKE
M20x1.5
M20x1.5
Exd IIC
Exd IIC
Baseefa 10ATEX 0262X
Baseefa 10ATEX 0262X
LOCK THE COVER TIGHT
BY UNBOLTING THE SCREW
+
-
HAZARDOUS AREA
SAFE AREA
COMMUNICATOR
Ro > 240 Ω
EX-CERTIFIED
POWER
SUPPLY
SHORT-CIRCUIT
[JUMPER]
Figure 4: The explosion - proof joints of Series 3400 and 3500 transmitters
A
L4
SEE DETAIL #1
SECTION A-A
L8
L5
L4
MOUNTED IN SOME
VERSIONS
OF
TRANSMITTERS
L6
L7
A
EXPLOSION-PROOF ROADS FOR GROUP IIC.
N°
Minimum
Length of Slot
L mm
Diameter
D-d mm
Quantity
of Joint
Minimum
According to EN
60079-1D mm d mm
L4
L5
L6
L7
L8
13.2
12
9
12.7
10
Ø15+0.027
M72 x 1.5
M20 x 1.5
1/2 NPT
Ø15+0.040
Ø15+0.070
M72 x 1.5
M20 x 1.5
1/2 NPT
0.097 1 or 2
2
2
2
1
Length of slot
min. 12.5
Min. 5 threads
engaged (8)
Min. 5 threads
engaged (6)
Min. 6 threads
engaged
Cemented joints
length of joint
min.10
17
APPENDIX II Intrinsically Safe –IS Option
Introduction
This Appendix applies to Series 3400 Smart Pressure Transmitters and Series 3500
Smart Differential Pressure Transmitters with –IS sufx (ATEX/IECEx intrinsically safe
construction).
This Appendix contains supplementary information relating to the IS intrinsically safe
versions compatible with ATEX Directive 2014/34/EU. During installation and use of
ameproof transmitters, reference should be made to the Installation and Operating
Manual in conjunction with this Appendix.
3. Use of 3400 and 3500 transmitters in hazardous locations
3.1. The transmitters are produced in accordance with the requirements of the
following standards:
EN 60079-0:2012+A11:2013, EN 60079-11:2012, EN 50303:2000; IEC
60079-0:2011, IEC 60079-11:2011
3.2. The transmitters may operate in areas where there is a risk of explosion, in
accordance with the rating of the explosion protection design.
Depending on type and device version the following markings are used:
II 1/2G Ex ia IIC T4/T5 Ga/Gb
II 1/2D Ex ia IIIC T105°C Da
FTZÚ 17 ATEX 0112X
Ex ia IIC T4/T5 Ga/Gb
Ex ia IIIC T105°C Da
IECEx FTZÚ 17.0024X
3.3. Transmitter category and hazard areas.
The ATEX category 1/2G (1/2D) and IECEx Equipment Protection Level
(EPL) Ga/Gb means that the transmitter may be installed within Type 1 (21)
or Type 2 (22) hazardous zones. The transmitter process connections may
connect to a Type 0 (20) zone type (see the Appendix II Figure 1 below for
an example).
4. Identifying marks
Intrinsically safe transmitters must have a nameplate containing the following
information:
Mark and number of notied body
Mark, and designation of explosion protection type and certicate number
Supply voltage
Parameters Ui, Ii, Pi, Ci, Li
Year of manufacture
Temperature use range
5. User information
Together with the ordered transmitters, the user will receive:
a.) Product certicate
b.) Declaration of conformity
c.) Installation and operating manual
Items b.) and c.) are also available on www.dwyer-inst.com.
6. Input parameters (based on certicate FTZÚ 17 ATEX 0112X)
6.1. Read and understand all information provided in this Appendix before
attempting installation of the 3400 Smart Pressure Transmitter or 3500
Smart Differential Pressure Transmitter.
6.2. Electrical connection of the transmitter must be made according to this
Appendix. Transmitter electrical installation should be in accordance
with engineering standard requirements. Electrical connections of
transmitters in hazardous locations should be made by personnel who have
indispensable knowledge and experience in this area. Earth clamps must be
used to earth transmitters. In the event that transmitters come in contact
with structural metal parts or pipes which are connected to the equipotential
bonding system, transmitters are not required to be earthed.
6.3. For power supplies with a linear characteristic:
Ui = 28 V Ii = 0.1 A Pi = 0.7 W Ta = 70°C and T5
Ui = 28 V Ii = 0.1 A Pi = 0.4 W Ta = 40°C and T6
Example of a power supply with a linear characteristic may be a typical
barrier with parameters
Uo = 28 V Io = 0.93 A Rw = 300 Ω
6.4. For power supplies with trapezoidal characteristics:
Ui = 24 V Ii = 0.05 A Pi = 0.6 W Ta = 80°C and T5
Example of a power supply with trapezoidal characteristics:
Units without sufx –FP or -IS are not Directive 2014/34/EU
(ATEX) compliant. These units are not intended for use in
potentially hazardous atmospheres in the EU. These units may be CE marked for
other Directives of the EU.
NOTICE
Figure 1
ZONE 1 ZONE 2 SAFE ARE
A
PRESSURE
TRANSMITTER
HAZARDOUS LOCATIONS, FLAMEPROOF (-FP SUFFIX)
• Keep cover tightly closed when in operation.
• De-energize supply circuit before opening.
• After de-energizing, delay 3 minutes before opening.
• To prevent ignition in hazardous locations, replace cover
before energizing the electrical circuits.
• Do not remove covers to change display or backlighting while
in hazardous location.
• Device is not eld-repairable and should be returned to
Dwyer Instruments, Inc. if repair is needed.
In areas where there is a risk of dust explosion, transmitters in
aluminum alloy casing covered with lacquer and transmitters
with plastic rating plates or with diaphragm seals covered by Teon should be
installed in way to prevent electrostatic charging according to p. 7.4.
WARNING
WARNING
ELECTRICAL RATINGS
• Minimum supply voltage is 16 VDC.
• Equipment must be powered via power supply and
measurement devices certied as intrinsically safe. Output
parameters to the hazard zone must not exceed the power
supply limits below.
• Transmitters must be supplied from a DC source with a
maximum voltage of 55 V, from a transformer or other device
with strengthened isolation between the primary and
secondary windings, with maximum a voltage of 250 V. It is
the responsibility of the user to provide power matching these
requirements
CAUTION
GENERAL
• Protection provided by the equipment may be impaired if the equipment
is used in a manner not specied by the manufacturer.
• Risk of electric shock – disconnect supply circuit before opening. Keep
unit tightly closed while circuits are live.
• Suitable insulation between signal wiring and hazardous voltage wiring
must be provided.
CAUTION
Figure 2: Power supply from a source with linear characteristic
Figure 3: Power supply from a source with a trapezoidal characteristic
Li Rw
Lo
Uo
ID
TRANSMITTER
Li Lo Rw LQ
UQUoUi
TRANSMITTER
18
7. Electrical connections
In hazardous areas, connections to the control terminals must be made using
only instruments which are permitted in those locations.
If the equipment is calibrated outside the hazard zone, connect as follows:
<SIGNAL+> and <TEST+> terminals. Transmitter is provided with a
communication resistor (RD = 240 Ω), closed with a jumper at <SIGNAL-> and
<TEST-> terminals installed by manufacturer. RD resistor can be use when it is
necessary to communicate with transmitter from its terminals and the load
resistance (Ro) in current loop is greater than 240 Ω. If so, <SIGNAL-> and
<TEST-> terminals have to be open.
W.E. Anderson
Attn. Repair Department
250 High Grove Rd
Grandview, MO 64030
6.5. For power supplies with a rectangular characteristic:
Ui = 24 V Ii = 0.025 A Pi = 0.6 W Ta = 80°C and T5
Supplying power from a source with a rectangular characteristic means the
voltage of the Ex power supply remains constant until current limitation
activates.
The protection level of power supplies with a rectangular characteristic is
normally “ib”. When the transmitter is powered from such a supply it is also
an Ex device with protection level “ib”.
Example of practical power supply: stabilized power supply with Uo = 24 V
with protection level “ib” and current limited to Io 25 mA.
6.6. Input inductance and capacity: Ci = 30 nF Li = 1.35 mH
6.7. Load resistance
From 28 VDC linear supply
Ro max (Ω) –
Without display backlighting
From a trapezoidal or rectangular power supply
Ro max (Ω)
*Real voltage from barrier
**Barrier resistance
6.8. Transmitters may be used in ambient temperatures (Ta) between -40ºC < Ta
≤ 45ºC for class T6 or between -40ºC < Ta ≤ 45°C for class T6 or between
-40°C < Ta 75ºC for T5.
6.9. Transmitter sensor diaphragm should not be subject to damage during
installation and use. The diaphragm is made from 1.4404/1.4435 (316L) or
Hastelloy thin foil and cannot be subject to incompatible materials.
6.10. With regard on kind of casing material (light alloy with large aluminum
content), the user is obliged to assure, that possibility of hitting casing does
not step out in place of transmitter installation.
6.11. In transmitter casing are two holes to assembly of cable glands from thread
M20x1.5 or 1/2 NPT.
6.12. Normally transmitters are delivered without installed glands but with blank
plugs (corks) in the second hole. The list of cable glands and plugs \
acceptable with production documentation and accepted by certicate
station is specied in Table 1 and Table 2. The user should install cable
glands according to Tables 1 and plugs according to Table 2 (if plugs aren’t
installed) or other accordance with ameproof standards.
6.13. Signal cable must be shielded; if the cable is not shielded, it must have a
round cross-section with moisture-proof insulation.
The general principles of connection and use of intrinsically safe transmitters
should be compatible with principles and relating standards for casing
devices in this Appendix and EN 60079-14, EN 60079-17 and IEC 600079-
14, IEC 60079-17.
6.14. Routine maintenance must include a check of the security of covers and
the cable glands and the fastening of the cable in the glands. The casing,
supply line, nameplate, and diaphragm must be inspected for mechanical
damage. During maintenance it is recommended that the threads of the
covers be lubricated with non-acidic grease.
Usup* - 16 V – (300**Ω 0.02 A)
0.0225 A
– Usup - 16 V
0.0225 A
Do not remove covers to change display or backlight while
explosive atmosphere is present. A method to block the cover
is shown in Appendix II Figure 5.
• Range of permissible ambient temperature: Ta = -40°C to
80°C Category 1D.
• Process medium must not increase enclosure temperature
above ambient Ta.
CAUTION
CAUTION
Figure 4
Figure 5: How to lock the casing of Series 3400 and 3500 transmitters
+
-
HAZARDOUS AREA SAFE AREA
EX-CERTIFIED
POWER SUPPL
Y
Ro ≤
240 Ω
SHORT-CIRCUT
[JUMPER]
COMMUNICATOR
LOCK THE COVER TIGHT
BY UNBOLTING THE SCREW
If Uo < UQ The parameters UQ, Io, and Po are interrelated as follows:
2
UQ = 4Po Rw = UQ Po = Uo (UQ –Uo) for Uo ≤ 1/2UQ
Io Io Rw
Substitution of components may impair intrinsic safety of
models with –IS sufx. Use a damp cloth with soap and water
for cleaning and decontamination. Solvents may damage O-ring seals. Units in
need of repair should be returned to the following address, freight prepaid. Include
a brief explanation of the problem and any relevant application information.
WARNING
Special conditions for safe use:
1. Versions of transmitter with surge arrester marked on plate “SA”, do not meet
the requirements of Section 10.3 of the standard EN 60079-11:2012
(500Vrms). This must be taken into account when installing the equipment.
2. Under certain extreme circumstances in dust explosive atmospheres, the
device with painting of aluminum enclosure and with plastic tables and with
elements of diaphragm seals covered by PTFE may store an ignition-capable
level of electrostatic charge. The device shall not be installed in a location
where the external cnditions are conducive to the build-up of electrostatic
charge.
3. If the diaphragm seal contains titan parts, it must be protected against
mechanical drops.
NOTICE
19
APPENDIX III Diaphragm Seals
Recommendations
The version of the transmitter with two remote diaphragm seals is recommended
for the measurement of pressure differences when the hydrostatic pressure of the
manometric uid in the capillaries (which depends on the vertical spacing of the seals)
is signicantly less than the measuring range of the transmitter. The best metrological
results are obtained when the applied capillaries are identical, as short as possible,
and terminated with identical seals. When using this conguration any temperature
errors related to the remote sealing affect both of the measurement chambers in the
same way and thus cancel each other out.
A transmitter with a direct diaphragm seal (connected to the positive measurement
chamber) and a remote diaphragm seal (connected to the negative chamber) is
recommended for hydrostatic measurements of: levels, densities, phase boundaries,
and pressure differences (with differentiated height of pulse source points*). In this
conguration, during ambient temperature uctuations, two opposite phenomena
occur simultaneously. Thermal expansion causes a change in volume (and hence also
a change in density) of the manometric uid in the capillary, which results in a change
of the hydrostatic pressure related to the vertical spacing of the seals.
This phenomenon is counteracted by the elastic reaction of the diaphragm of the
remote diaphragm seal which is displaced by the change in volume of manometric
uid. Based on tests and experiments the transmitters are provided with carefully
selected seal diaphragms which guarantee compensation of the errors resulted from
the ambient temperature changes.
Application and construction
The differential pressure transmitter is applicable to the measurement of pressure
differences of: gases, vapors, and liquids in cases where it is necessary to use
seals and the pressure pulse source points may be several meters apart. Typical
applications include the hydrostatic measurement of: levels in closed tanks, densities,
phase boundaries, measurement of lter loss, pressure differences between media in
pasteurizers etc. The available range of the diaphragm seals allows measurement of a
wide variety of media. The active element is a piezoresistant silicon sensor separated
from the medium by a distance sealing system. The special design of the measuring
unit means that it can withstand pressure surges and overloads of up to 40bar. The
electronic circuits are enclosed in a casing with a degree of protection IP65 or IP66.
Metrological Parameters
Accuracy ≤±0.1% (FSO)
Other parameters correspond to the overall Series 3500
Conguration of the Series 3500 transmitters to measure the level, density of liquid
and phase boundary
To simplify the mathematical operations we introduce the density coefcent of the
medium Xρ
Xρ =
Since the density of water at 4°C is 1 g/cm3, the density coefficient Xρ is numerically
equal to the density of the medium expressed in g/cm3. To determine the hydrostatic
pressure of a column of liquid in mm H2O, it is sufficient to multiply the height of the
column h [mm] by the density coefficient of the liquid Xρ. Since it is easy to determine
the hydrostatic pressure in mm H2O and the transmitter can be configured in those
units, in the descriptions of measurement methods given below we will make use of
pressures expressed in mm H2O and the density coefficient Xρ.
Configuration of the Series 3500 transmitters to measure the level of liquid in a tank.
The measurement task:
To convert a variation in the level of a liquid with density ρ = 0.87 g/cm3between 0 and
hmax to a variation in the output signal from 4-20 mA.
1. Install the transmitter in its working position on an empty tank.
2. Make the electrical connection of the transmitter, providing the ability to use
HART® communication
3. Connect the KAP-03 communicator, identify the transmitter and select the
“configuration” function.
4. On the configuration menu select the “rearranging” procedure.
5. On the “rearranging” menu:
a) change the units of measurement to mm H2O at 4°C;
b) enter the values for the start (Xρ x hmin [mm])
c) to compensate for the hydrostatic pressure of the manometric fluid, the start of
the measurement range should be set using regulated pressure’ when subject to
the action of only the manomertric fluid (empty tank) the transmitter will shift the
start and end-points of the range, compensating for the value of that pressure.
When the transmitter has been configured in this way it is ready to be used to carry out
the given measurement task.
If it is not possible to empty the tank to configure the transmitter, the hydrostatic
pressure of the manometric fluid should be calculated by multiplying the vertical
spacing of the diaphragm seals by the density coefficient of the oil in the capillaries
This pressure should be taken into account when entering the values for the start and
end of the range:
Start [mm H2O] = -H [mm] x Xρoil
End [mm H2O] =
=h
max [mm] x Xρmeasured liquid - H [mm] x Xρoil
ρoil for DC-550 oil is equal to 1.068 g/cm3
ρoil for AK-20 oil is equal to 0.945 g/cm3
Ρmedium[g/cm3]
Ρwater at 4°C[g/cm3]
20
Configuration of the Series 3500 transmitters to measure density of liquids.
The measurement task:
To convert a variation in liquid density from ρmin = 0.6 g/cm3 to ρmin = 0.6 g/cm3 to pmax
= 1.2 g/cm3 to a variation in the output signal from 4-20 mA, with the vertical spacing of
the diaphragm seals equal to H = 3000 mm. The sealing system is filled with DC-550
oil with density ρoil = 1.068 g/cm3.
1. Calculate the value of the start of the range as follows:
H
[mm] x (Xρmin - Xρoil) =
= 3000 x (0.6 - 1.068) = -1404 [mm H2O]
2. Calculate the value of the end of the range as follows:
H
[mm] x (Xρmax - Xρoil) =
= 3000 x (1.2 - 1.068) = 396 [mm H2O]
3. Set the zero point of the transmitter ith the diaphragm seals positioned at the same
level.
4. Install the transmitter in its working position.
5. Make the electrical connections to the transmitter, providing for the possibility of
using HART communication.
6. Connect the KAP-0’.l communicator, identify the transmitter and select the
“configuration” function.
7. On the configuration menu select “reranging” proce dure.
8. On the “reranging” menu:
a) change the measurement units to mm H20 at 4°C;
b) enter the calculated values for the start (-1404) and end (396) of the range.
When the transmitter has been configured in this way it is ready to be used to carry out
the given measurement task.
Note: If it is possible to fill the space between the seals with a liquid whose density
corresponds to the start of the measurement range, the start of the range of the trans-
mitter can be set using regulated pressure.
Figure 1: Series 3500 differential pressure transmitter with two remote
diaphragm seals (examples)
This symbol indicates waste electrical products should not be disposed
of with household waste. Please recycle where facilities exist. Check with
your Local Authority or retailer for recycling advice.
Printed in U.S.A. 7/20 FR# 444400-10 Rev. 1©Copyright 2020 Dwyer Instruments, Inc.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: [email protected]
HART® is a registered trademark of Hart Communication Foundation
S-P TYPE
FLUSH FLANGED REMOTE
DIAPHRAGM SEAL
S-T TYPE
TUBE FLANGED REMOTE
DIAPHRAGM SEAL
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