SMC Networks IT Series User manual

MODEL 5100-99-IT
IT Series
4-20 mA Transmitter
Version 2.0
APPLICABILITY & EFFECTIVITY
Effective for all Model 5100-99-IT-AL and 5100-99-IT-SS Transmitters manufactured after March 1, 2008
Instruction Manual Part Number T12005
Rev A

Model 5100-99-IT 4-20 mA Transmitter
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Contents

Model 5100-99-IT 4-20 mA Transmitter
TABLE OF CONTENTS
1. PRODUCT DESCRIPTION .............................................................................................................................1
1.1 GENERAL........................................................................................................................................................1
1.2 PRODUCT CONFIGURATION........................................................................................................................1
1.3 MODES OF OPERATION................................................................................................................................1
1.3.1 SENTRY INTERFACE..............................................................................................................................1
1.3.2 MODBUS OPERATION............................................................................................................................2
1.3.3 ANALOG OPERATION ............................................................................................................................2
1.3.4 REMOTE ALARM RESET (DIGITAL INPUT) (Figure 3-7) ......................................................................2
1.3.5 OPTIONAL INTEGRAL RELAYS .............................................................................................................2
1.3.6 MECHANICAL ..........................................................................................................................................2
1.3.7 ENCLOSURE ...........................................................................................................................................2
1.3.8 TRANSMITTER ELECTRONICS .............................................................................................................4
1.4 INTERCONNECT WIRING..............................................................................................................................4
1.5 POWER REQUIREMENTS .............................................................................................................................4
2. CAUTIONS & WARNINGS .............................................................................................................................5
2.1 INTRODUCTION .............................................................................................................................................5
2.2 IT TRANSMITTERS -GENERAL.....................................................................................................................5
2.3 WIRING............................................................................................................................................................5
3. INSTALLATION ..............................................................................................................................................7
3.1 TRANSMITTER LOCATIONS .........................................................................................................................7
3.2 WIRING............................................................................................................................................................7
3.2.1 ANALOG 4-20 mA OPERATION..............................................................................................................7
3.2.2 MODBUS OPERATION USING RS-485 CONNECTION ........................................................................7
3.2.3 SENTRY OPERATION USING SMC SENTRY CONNECTION ..............................................................7
3.2.4 GENERAL ................................................................................................................................................7
3.3 ENCLOSURE INSTALLATION........................................................................................................................7
3.4 TRANSMITTER AND SENSOR INSTALLATION ............................................................................................9
3.5 TRANSMITTER ADDRESS SWITCH............................................................................................................14
4. OPERATION .................................................................................................................................................15
4.1 INTRODUCTION –HUMAN-MACHINE INTERFACE SYSTEM ...................................................................15
4.2 HUMAN-MACHINE INTERFACE ..................................................................................................................15
4.3 MAIN MENU...................................................................................................................................................16
4.4 CONFIGURE SET-POINTS...........................................................................................................................17
4.5 MAINTENANCE FUNCTIONS.......................................................................................................................20
5. CALIBRATION..............................................................................................................................................21
5.1 CALIBRATION FREQUENCY .......................................................................................................................21
5.2 CALIBRATION PREPARATION ....................................................................................................................21
5.2.1 CALIBRATION GAS DELIVERY METHODS.........................................................................................21
5.3 CALIBRATION PROCEDURE.......................................................................................................................21
5.3.1 SENSOR EXPOSURE TO GAS.............................................................................................................22
6. SERVICE.......................................................................................................................................................23
6.1 TRANSMITTER CONFIGURATION ..............................................................................................................23
6.2 ENCLOSURE REPLACEMENT ....................................................................................................................23
6.3 TRANSMITTER REPLACEMENT .................................................................................................................24
6.4 SENSOR REPLACEMENT............................................................................................................................24
6.5 INSTALLATION INSPECTION ......................................................................................................................24
6.5.2 INSPECTION AND TROUBLESHOOTING GUIDE ...............................................................................24
6.5.3 IF MODULE DOES NOT RESPOND TO GAS ......................................................................................24
Contents

Model 5100-99-IT 4-20 mA Transmitter
Contents
6.5.4 IF THE TRANSMITTER DISPLAYS “STARTING” FOR MORE THAN 1 HOUR...................................24
7. APPENDICES ...............................................................................................................................................25
APPENDIX A: SPECIFICATIONS ............................................................................................................................25
APPENDIX B: MODEL NUMBERS &PARTS LIST ..................................................................................................26
APPENDIX C: LIMITED WARRANTY ......................................................................................................................27
APPENDIX D: MODBUS MEMORY MAP.................................................................................................................28

Model 5100-99-IT 4-20 mA Transmitter
1. PRODUCT DESCRIPTION
1.1 GENERAL
The Model 5100-99-IT Transmitter is a member of the Information Technology “IT” family of gas sensor
transmitters.
IT transmitters offer a broad array of features, including:
•Integral alphanumeric LED display
•4-20 mA output
•Modbus®RTU interface
•SMC Sentry interface
•316 Stainless steel enclosure option
•Auxiliary integral relay option
•Remote display option
•Low maintenance and operation costs
The 5100-99-IT is designed and approved for installation and operation in hazardous locations.
1.2
nt. Options which can be re-configured by the installer or field technician are fully
.
1.3.1
e 3-1. Figure 3-6 in this manual provides the wiring terminations for connections to the
ntry controller.
alarm values established in
nnections, allowing for a continuous run to the next transmitter.
PRODUCT CONFIGURATION
Various transmitter configuration options are available. Where applicable, these options are factory
configured prior to shipme
described in this manual
1.3 MODES OF OPERATION
SENTRY INTERFACE
IT gas sensor transmitter can be connected to on Sierra Monitor Sentry Model 5000 controllers. When it is
connected to a Sentry system the IT transmitter must have a unique address which can be established by
setting an address between 1 and 8 on the Transmitter Address Switch accessible from the cover plate as
illustrated in Figur
Se
When the transmitter is operated in conjunction with a Sentry controller, the alarms outputs in the
transmitter can both be set to “Sentry”, allowing the Sentry controller to manage alarm acknowledge and
reset rather than the transmitter. The alarm relay outputs are triggered by the
the transmitter and can be independent of the settings in the Sentry controller.
The Sentry configuration allows daisy chain installation using the Sentry multiplex capability, thus reducing
costs by avoiding the requirement for wiring junction boxes. The connector card has two sets of
co
®Registered trademark of Schneider Electric
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Model 5100-99-IT 4-20 mA Transmitter
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1.3.2
e additional terminal connectors to enable the user to connect In/Out terminations of
1.3.3
3 (3-wire) or Type 4 (4-wire) circuit as described by ANSI/ISA-
1.3.4
is only resets local alarms, not Sentry alarms. This
operated in a supervised mode that both the switch and resistor
Figure 3-7.
1.3.5
VAC, 8 Amps for the High
ys, it will include Terminal P4 on the interface board
elay output connections are on P4.
1.3.6
of comprised of the following three primary components:
1.3.7
viewing window. The design of the enclosures allows 3-way mounting
hoices as shown in figure 1-3.
MODBUS OPERATION
An RS-485 Modbus RTU serial interface allows direct connection to standard PLCs and DCSs. The
Transmitter Address Switch (section 3.5) allows the user to select up to 16 different Modbus addresses.
Also, an additional 238 Modbus addresses (for a total of 254 different Modbus Addresses) are available
via menu selection. Figure 3-6 in this manual provides the wiring terminations for Modbus connections. The
5100-XX-IT provides th
a RS-485 connection.
ANALOG OPERATION
The 4-20 mA interface allows direct connection to standard analog controllers or PLCs. The 5100-XX-IT 4-
20 mA connection can be wired as a Type
50.00.01-1975 Standard (see figure 3-5).
REMOTE ALARM RESET (DIGITAL INPUT) (Figure 3-7)
An input is available for connection of remote alarm reset/acknowledge. Figure 3-7 provides the wiring
termination for connecting the remote alarm reset. Th
input can be wired as supervised or non-supervised.
Note that when the Remote Alarm Reset is
must be present as outlined in
OPTIONAL INTEGRAL RELAYS
The optional relays are integral to the transmitter and are rated as SPDT, 250
Alarm and Low Alarm relays and SPDT, 250 VAC, 2 Amp for the Trouble relay.
If the transmitter is provided with the optional rela
(Figure 3-2). R
MECHANICAL
The transmitter
ENCLOSURE
Standard on the 5100-99-IT-AL is an explosion-proof, rain-tight cast aluminum electrical housing (Figure 1-
1) with three ¾” FNPT conduit hubs. The 5100-99-IT-SS (Figure 1-2) has a 316 Stainless Steel enclosure.
oth enclosure covers have aB
c

Model 5100-99-IT 4-20 mA Transmitter
Figure 1-1
Model 5100-99-IT-AL & SS Transmitter –
Aluminum & Stainless Steel Enclosure, Dimensions
.
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Model 5100-99-IT 4-20 mA Transmitter
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Figure 1-3
Model 5100-99-IT Transmitter – Mounting Options
1.3.8 TRANSMITTER ELECTRONICS
Electronic Assembly consist of one top transmitter board (connected to the cover plate) and a lower
interface board. Connectors for wiring for power, signal interface and alarm relays are located on the
interface board assembly
1.4 INTERCONNECT WIRING
Not supplied with the transmitter, but necessary to the installation and operation is the multi conductor
wiring which connects the transmitter to its power source and controller. Before this wiring is installed it is
important to read and understand the control system installation instructions to determine wiring
requirements and alternatives.
1.5 POWER REQUIREMENTS
5100-99-IT operates on DC power between 10 VDC and 30 VDC. Regulated DC power must be supplied
from a separate source, or from an approved Sentry or IT controller.

Model 5100-99-IT 4-20 mA Transmitter
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2. CAUTIONS & WARNINGS
2.1 INTRODUCTION
Although IT Transmitter is designed and constructed for installation and operation in industrial applications
including "hostile" environments, caution should be taken to insure that the installation is made in
compliance with this instruction manual and that certain procedures and conditions are avoided. This
chapter discusses the necessary cautions. Read the entire chapter prior to installation of the
equipment.
2.2 IT TRANSMITTERS - GENERAL
Avoid installing Transmitter where they will be unnecessarily exposed to wind, dust, water (esp. direct hose
down), shock, or vibration. Observe temperature range limitations.
2.3 WIRING
The manufacturer recommends that extra caution be taken where the installation is near any sources of
electromagnetic or radio frequency interference. Precautions include:
•Avoid running transmitter cable close to high power cables, radio transmission lines, or cables subject
to pulses of high current.
•Avoid running cables near large electric motors or generators.
•When the transmitter is to be operated in analog (4-20mA output) mode shielded cable is required.
•All splices must be via either a termination hardware system or soldered. Improperly spliced cable can
result in corrosion, resistance changes and system errors.
•Use low capacitance cable for RS-485 Modbus RTU Operation.
NOTE
Installation and wiring must be in accordance with the National Electrical Code. AC Voltage
conductors are not to be run in the same conduit as DC voltage conductors.

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Model 5100-99-IT 4-20 mA Transmitter
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3. INSTALLATION
NOTE
All transmitters are factory are pre-configured and calibrated.
Identify all components during unpacking and install using the factory configuration.
3.1 TRANSMITTER LOCATIONS
Select locations for each transmitter so that they are placed in areas accessible for calibration.
3.2 WIRING
3.2.1 ANALOG 4-20 mA OPERATION
The 4-20 mA output for the 5100-99-IT can be either 3-wire or 4-wire operation. If using 3-wire operation,
use a minimum of 18 AWG, shielded, 3-conductor cable up to 2000’. For 4-wire operation, use a minimum
of 2 each, 18 AWG, twisted, shielded, pair up to 2000’.
3.2.2 MODBUS OPERATION USING RS-485 CONNECTION
Use a minimum of 18 AWG, 2 conductor for DC power connection. No shield required. In addition use a
minimum of 24 AWG, low capacitance, shielded data cable for RS-485 half duplex communication. The
installation may be planned in a manner which provides up to 32 sensor modules on a single home run.
Refer to Figure 3-3. Units ship with BIAS jumpers connected. For all installations, except very long cable
runs, leave these jumpers connected. The TERM jumpers should be installed in the last (furthest) module
of every loop.
3.2.3 SENTRY OPERATION USING SMC SENTRY CONNECTION
Wire shall be rated as 600 volt tray cable, such as Belden (or equivalent) 27331 or 27331 AS (shielded). If
high RFI or EMI levels exist wiring should be protected by conduit or shield. The installation may be
planned in a manner which provides up to 4 sensor modules on a single home run to a Sentry controller.
NOTE
Be sure to follow all local electric code and safety requirements when installing the 5100-99-IT
Transmitter
3.2.4 GENERAL
Install conduit as required by local code or construction specifications. When transmitters are to be
multiplexed for Sentry or RS-485 communication, two alternatives may be planned:
•Use multi-position positive contact terminals to connect daisy chain wiring and provide a pigtail to
connect to the transmitter board.
NOTES
The drain wire of shielded cable must NOT be used as one of the conductors.
Installation and wiring must be in accordance with the National Electrical Code. Temperature
rating of cable wire must be at least 75oC. If cable runs through higher temperature
environments, it must be specified for that environment.
3.3 ENCLOSURE INSTALLATION
To protect the transmitter they should be removed from the enclosure and preserved until final installation and
wiring termination.
Prior to installation and wiring:
1. Remove the transmitter from the module housing by:
•Unscrew the two captive panel screws in the face plate.
•Lift the transmitter out of the housing.
2. Install the module housing onto the end of the supply conduit and/or bolt into position as required.
NOTES
When housing earth grounding is required for the installation a grounding lug is located in the
base of the enclosure. Install the earth ground wire under the green lug.

Model 5100-99-IT 4-20 mA Transmitter
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P1 PCB Label Function
1 IN + Digital Input SW +
2
Switch
IN - Digital Input SW -
3 IN + 4-20 mA Input +
4
4-20
IN - 4-20 mA Input -
5 GND Ground
6 OUT + 4-20 mA Output +
7
4-20
OUT - 4-20 mA Output -
P2 PCB Label Function
1 + RS 485 (+) (A)
2 - RS 485 (-) (B)
3
RS 485
S RS 485 shield (Isolated GND)
4 + RS 485 (+) (A)
5 - RS 485 (-) (B)
6
RS 485
S RS 485 shield (Isolated GND)
P3B PCB Label Function
1 P VDC Power
2 S Sentry Signal or Communication
3 G VDC Ground
P3A
4 P VDC Power
5 S Sentry Signal or Communication
6 G VDC Ground
P4 Connections are only available when the optional Relays are included
P4 PCB Label Function
1 N/C Low Alarm Relay NC
2 COM Low Alarm Relay COM
3
LO ALM
N/O Low Alarm Relay NO
4 N/C High Alarm Relay NC
5 COM High Alarm Relay COM
6
HI ALM
N/O High Alarm Relay NO
7 N/C Trouble Alarm Relay NC *
8 COM Trouble Alarm Relay COM*
9
TRBL
ALM N/O Trouble Alarm Relay NO*
* Trouble relay is fail safe so it is energized for normal operation,
functions are labeled for normal operation.
Table 3-1
Transmitter External Interfaces (See Figure 3-2)
1. Establish the module address according to section 3.5.
NOTES
The starting delay period normally takes approximately 3 minutes but it depends on the sensor
connected.

Model 5100-99-IT 4-20 mA Transmitter
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3.4 TRANSMITTER ADDRESS SWITCH
For digital interface applications the module address switch (or Modbus node) Figure 3-1 must be set per
Table 3-2:
POSITION ADDRESS POSITION ADDRESS
1 Sensor 1 9 Sensor 09
2 Sensor 2 A Sensor 10
3 Sensor 3 B Sensor 11
4 Sensor 4 C Sensor 12
5 Sensor 5 D Sensor 13
6 Sensor 6 E Sensor 14
7 Sensor 7 F Sensor 15
8 Sensor 8 0 Software
Menu
Table 3-2
Transmitter Address Switch Positions
NOTES
For Sentry applications only sensor addresses 1-8 are allowed. If using Modbus output sensor
addresses 1-15 are available. Position 0 allows the Modbus Address to be set by software
menu, in the range 16-254.
Figure 3-1
Transmitter Face Plate

Model 5100-99-IT 4-20 mA Transmitter
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Figure 3-2
Interface Board Connectors
Figure 3-3
RS-485: Termination, BIAS Jumper

Model 5100-99-IT 4-20 mA Transmitter
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Figure 3-4
4-20mA Circuit Types

Model 5100-99-IT 4-20 mA Transmitter
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Figure 3-5
4-20mA Circuit T
yp
e Connections for 5100-99-IT

Model 5100-99-IT 4-20 mA Transmitter
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5100-99-IT TO SENTRY
5100-99-IT TO MODBUS DEVICE
Figure 3-6
Wiring Connections for Modbus and Sentry Interface

Model 5100-99-IT 4-20 mA Transmitter
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5100-99-IT Remote Alarm Reset (Unsupervised)
5
SWITCH IN
SWITCH IN
+
-
+
100-05-IT REMOTE ALARM RESET (SUPERVISED)
-
+
GND
+
- -
IN
IN
OUT
SWITCH
4-20
4-20
P1
4.7K OHM (CUSTOMER SUPPLIED)
5100-99-IT Remote Alarm Reset
(
Su
p
ervised
)
(
Dr
y
contact onl
y
un
p
owered
)
Figure 3-7
Wiring Connections for Remote Alarm Reset

Model 5100-99-IT 4-20 mA Transmitter
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4. OPERATION
4.1 INTRODUCTION – HUMAN-MACHINE INTERFACE SYSTEM
The transmitter utilizes a visual menu system operated by means of a magnet. A magnetic tool (5358-50) is
supplied for this purpose. The menu system is used to configure alarm set-points, calibrate the transmitter,
and for maintenance procedures and alarms acknowledge.
4.2 HUMAN-MACHINE INTERFACE
The transmitter menu system is operated by means of directing the magnet stick toward each of four
independent hall-effect magnetic switches. The enclosure lid should remain on the unit. Each switch
functions as if it is a manually activated panel key. The keys are located above and below the faceplate
display and are labeled M, E, ▲and ▼as shown in Figure 4-1. The key functions are as follows:
•Key M: MODE
•Key E: ENTER
•Key ▲: UP (+)
•Key ▼: DOWN (-)
Figure 4-1:
I
T
Transmitte
r
–
Menu Switch Locations
Ke
y
\
/
Ke
y
EKe
y
M
Ke
y
/
\

Model 5100-99-IT 4-20 mA Transmitter
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4.3 MAIN MENU
Table 4-1 describes the primary man-machine interface operation (The blackened box is the selected menu
function).
Function Display Description Reference
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
ME
ST
XXX PPM Default Display (Once a minute the sensor displays module address)
Table 4-1 Master Menu
Enter XXX PPM Apply Selected Mode (Exit)
Mode EXIT-?-- Exit Menu
Mode MAINT:-- Mode Function - Maintenance Table 4-4
Mode SETUP:-- Mode Function - Set Point Adjustments Table 4-3
Mode CALIB:-- Mode Function - Calibrate Table 5-1
Mode ALMRSET: Mode Function - Alarm Reset
XXX PPM Default Display
RESET Alarm Reset
Banner: "Press [E] to reset alarm"
Mode ALMRSET: Mode Function - Alarm Reset
XXX PPM Normal condition - default display
START XX Third screen at start up: Start Count Up
VXX-XX-- Second screen at power up: Version No.
5100-99 First screen at power up: Model No.
Down Switch [▼] Next Menu
Up Switch [▲] Previous Menu
Enter Switch [E]
Key
Mode Switch [M]
Table 4-2 describes the operational display values of the human-machine interface system.
DISPLAY DESCRIPTION
START Delay from loss of power at start-up
XXX PPM Concentration
LXXX PPM Low Alarm
HXXX PPM High Alarm
Measures gas, concentration exceeds
100% of Full Scale
CXXX PPM Calibration Mode
Acknowledged Function
Table 4-2 Operation Display Values