Precision Digital Corporation ExSense Series User manual

PD301 - PD306 Head Mount
SMART TEMPERATURE TRANSMITTERS
PRECISION DIGITAL CORPORATION
89 October Hill Road • Holliston MA 01746 USA
Tel [phone] • Fax [phone]
www.predig.com
HART®
Non-HART
•Smart Temperature Transmitters with HART® Protocol
•Universal Input: RTD, TC, Ohm & mV
•Program with PC or HART Communicator
•Low-Cost Model PD301, PC Programmable
•Order Configured at the Factory Ready to Install
•Explosion-Proof or General Purpose Connection Head
•Transmitter Mounts Into Form B Connection Head
•Operating Temperature: -40 to 85°C

PD301 - PD306 Smart Temp Transmitters Instruction Manual
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Disclaimer
The information contained in this document is subject to change without
notice. Precision Digital makes no representations or warranties with
respect to the contents hereof; and specifically disclaims any implied
warranties of merchantability or fitness for a particular purpose.
!
CAUTION: Read complete
instructions prior to installation
and operation of the
temperature transmitter.
WARNING: Risk of electric
shock or personal injury.
Warning
This product is not recommended for life support applications or
applications where malfunctioning could result in personal injury or
property loss. Anyone using this product for such applications does so at
his/her own risk. Precision Digital Corporation shall not be held liable for
damages resulting from such improper use.
Limited Warranty
Precision Digital Corporation warrants this product against defects in
material or workmanship for the specified period under “Specifications”
from the date of shipment from the factory. Precision Digital’s liability
under this limited warranty shall not exceed the purchase value, repair, or
replacement of the defective unit.
Registered Trademarks
HART® is a registered trademark of the HART Communication
Foundation. All other trademarks mentioned in this document are the
property of their respective owners.
© 2010 Precision Digital Corporation. All rights reserved.
www.predig.com

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INTRODUCTION
The ExSense T Series is a line of smart temperature transmitters
available with HART®communication capabilities. All head mount
models can be configured using a USB adapter and the free PC
software available for download at www.predig.com.
The PD301 model is the most basic temperature transmitter.
The HART capable models (i.e. PD302, 304, 306) can also be
configured using a HART modem and a PC running the free PC
software provided or using a handheld HART communicator.
The PD303 & PD304 models include the head mount transmitter
(hockey-puck) and the connection head.
The PD305 & PD306 models are complete temperature transmitter
assemblies that include the connection head and temperature sensor.
The line of accessories include: connection heads, screw terminal
blocks, temperature probes, thermowells, and thermowell extensions
and unions for high temperature applications.
The connection heads can be ordered for safe area (general purpose)
applications or for hazardous area (explosion-proof) applications with
FM, CSA, and ATEX Certifications. They are available in aluminum
and stainless steel.

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ORDERING INFORMATION
The following are a few examples of models that can be ordered. Use
the online ExSense Builder to create a model to satisfy a particular
application; choose other sensor types, lengths, and thermowells.
Base Model Description
PD301-C0 Head Mount Temperature Transmitter
PD302-C0 HART Head Mount Temperature Transmitter
PD303-G2-C0 Temperature Transmitter with General Purpose
Connection Head
PD303-A2-C0 Exp-Proof Temperature Transmitter w/FM, CSA,
ATEX Connection Head
PD304-A2-C0 Exp-Proof HART Temperature Transmitter
w/FM, CSA, ATEX Connection Head
PD305-A2-C0-P11R06 Exp-Proof Temp Transmitter with FM, CSA,
ATEX Connection Head & 6" Pt100 Probe
PD306- A2-C0-P11R06 Exp-Proof HART Temp Transmitter w/FM, CSA,
ATEX Connection Head & 6" Pt100 Probe
PDA8301 USB Adapter for Head Mount Transmitter
PDA8302 HART to USB Modem
Note: HART models can be configured using the HTTemp PC software andPDA8302 USB to HART
modem. The input Type and Units cannot be changed with HART Communicators.
C0 = Factory default
C1 = Custom configuration
C2 = Custom configuration with Certificate of Calibration
A 2= Exp-proof aluminum enclosure, ½" NPT x 2 conduit & ½" NPT process connection
G2 = General purpose aluminum, ½" NPT x 2 conduit & ½" NPT process connection
P11 = 100 Pt RTD with 6" leads
R06 = 6" Rigid probe
S06 = Spring-loaded 6" probe to use with thermowell
T106 = Type 1 thermowell to match spring-loaded 6" probe
Go to www.predig.com/ExSenseBuilder to build a complete model number and to
specify the transmitter’s configuration setup.
Note: Standard RTD is 1/4" in diameter. For other sizes, contact factory.

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Table of Contents
INTRODUCTION---------------------------------------------------------3
ORDERING INFORMATION------------------------------------------4
SPECIFICATIONS-------------------------------------------------------7
General-----------------------------------------------------------------------------7
Accuracy & Ranges-----------------------------------------------------------10
Connection Head Ratings & Approvals----------------------------------12
SAFETY INFORMATION -------------------------------------------- 13
INSTALLATION--------------------------------------------------------- 14
Unpacking -----------------------------------------------------------------------15
Mounting-------------------------------------------------------------------------15
Connections---------------------------------------------------------------------17
Sensor & 4-20 mA Output Connections...................................18
Connections to PC & Communicator.......................................19
HART Connections to PC & Communicator............................19
SETUP AND PROGRAMMING------------------------------------- 20
Temperature Transmitter Software ---------------------------------------21
4-20 mA Loop Current Setup-----------------------------------------------24
Parameter Setup---------------------------------------------------------------25
HART Information -------------------------------------------------------------27
Calibration-----------------------------------------------------------------------28
Graph Monitor ------------------------------------------------------------------29
APPLICATION---------------------------------------------------------- 30
PD302 HART Transmitter & Remote Display--------------------------30
MOUNTING DIMENSIONS------------------------------------------ 31
TEMPERATURE PROBES------------------------------------------ 32
THERMOWELLS------------------------------------------------------- 33
TROUBLESHOOTING------------------------------------------------ 35

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Table of Figures
Figure 1. Sensor & Loop Connectors................................................18
Figure 2. Sensor & 4-20 mA Connections.........................................18
Figure 3. Connections to PC with USB Modem ................................19
Figure 4. Connections to PC & HART Communicator.......................19
Figure 5. Head Mount Transmitter Dimensions.................................31
Figure 6. Connection Head Dimensions............................................31

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SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
INPUT Universal RTD, TC, Resistance, or Voltage
OUTPUT Two-wire 4-20 mA scalable
ACCURACY &
INPUT RANGES ±0.08% of span typical, see table on page 10 for details
TEMPERATURE
DRIFT RTD: ±0.004°C/°C TC: ±0.03°C/°C
PROGRAMMING
METHOD PD301: PDA8301 USB modem & PC software
PD302: PDA8301 USB or PDA8302 HART
modem & PC software or field handheld HART
communicator
UNDERRANGE 3.8 mA
OVERRANGE 20.5 mA
SENSOR BREAK Selectable ≤3.6 mA Low Alarm
or ≥22 mA High Alarm
RESPONSE TIME 1 second
LONG TERM
STABILITY Better than 0.05% per year
START UP TIME Less than 5 seconds
NOISE FILTER Programmable 0 to 85 µA
DAMPING TIME Programmable 0 to 30 sec
OUTPUT
RESOLUTION 0.3 µA
NON-VOLATILE
MEMORY All programmed settings are stored in non- volatile memory for a minimum of ten years

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POWER SUPPLY 7.5 to 45 VDC, reverse polarity protected
LOAD
IMPEDANCE 790 Ω@ 24 VDC max or ((V supply - 7.5 V)/0.0208 A) Ω
NORMAL MODE
REJECTION 64 dB at 50/60 Hz
ISOLATION 2 kV input-to-output
SHOCK &
VIBRATION
RESISTANCE
4g/2 to 150 Hz as per IEC 60 068-26
EMC Immunity & emission interference according to
GB/T17626.2-1998), compliance with IEC
61000-4-3: 1995
ENVIRONMENTAL Operating temperature range: -40 to 85°C
Storage temperature range: -40 to 100°C
Relative humidity: 0 to 90% non-condensing
CONNECTIONS Screw terminals accept 12 to 22 AWG
ENCLOSURE Head mount transmitter: Polycarbonate
housing with epoxy potting, NEMA 1, IP00
(NEMA 4X, IP66 with PDA1080WM).
Connection head: Cast aluminum, 0.3% max
copper content, corrosion resistant powder
coating, color: blue. NEMA 4X, 7, & 9, IP68.
One ½" NPT conduit opening, one ½" NPT
process connection.
MOUNTING Installation Angle: No limit
Installation Area: Connection head according to
DIN 43 729 Form B. See Mounting Dimensions
on page 31.

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TIGHTENING
TORQUE Screw terminal connectors: 4.5 lb-in (0.5 Nm)
WEIGHT 1.18 oz (33.5 g); head mount transmitter only
OVERALL
DIMENSIONS Dia. 1.73" x 0.89" (44 mm x 22.5 mm) head mount transmitter only. Connection head, probe,
and thermowell dimensions are not included.
WARRANTY 1 year parts & labor

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Accuracy & Ranges
Input Type Input Range
A
ccurac
y
(% of span) Min Span (4-20 mA)
RTD
Pt100 -200 to 850°C
(-328 to 1562°F) ±0.2°C or 0.08% 10°C (18°F)
Pt500 -200 to 250°C
(-328 to 482°F) ±0.5°C or 0.20% 10°C (18°F)
Pt1000 -200 to 250°C
(-328 to 482°F) ±0.3°C or 0.12% 10°C (18°F)
Cu50 -50 to 150°C
(-58 to 302°F) ±0.2°C or 0.08% 10°C (18°F)
Cu100 -50 to 150°C
(-58 to 302°F) ±0.3°C or 0.12% 10°C (18°F)
Ni100 -60 to 180°C
(-76 to 356°F) ±0.2°C or 0.08% 10°C (18°F)
Ni500 -60 to 180°C
(-76 to 356°F) ±0.5°C or 0.20% 10°C (18°F)
Ni1000 -60 to 150°C
(-76 to 302°F) ±0.3°C or 0.12% 10°C (18°F)
Poten-
tiometer Ohms 0 to 400 Ω±0.1 Ωor
0.08% 10 Ω
0 to 2,000 Ω±1.5 Ωor
0.12% 100 Ω

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Accuracy & Ranges (Continued)
Input Type Input Range
A
ccurac
y
(% of span) Min Span (4-20 mA)
TC
B 0 to 1820°C
( 32 to 3308°F) ±2.0°C or 0.08% 500°C (900°F)
E -270 to 1000°C
(-454 to 1832°F) ±0.5°C or 0.08% 50°C (90°F)
J -210 to 1200°C
(-346 to 2192°F) ±0.5°C or 0.08% 50°C (90°F)
K -270 to 1372°C
(-454 to 2501°F) ±0.5°C or 0.08% 50°C (90°F)
N -270 to 1300°C
(-454 to 2372°F) ±1.0°C or 0.08% 50°C (90°F)
R -50 to 1768°C
( -58 to 3214.4°F) ±2.0°C or 0.08% 500°C (900°F)
S -50 to 1768°C
-58 to 3214.4°F) ±2.0°C or 0.08% 500°C (900°F)
T -270 to 400°C
(-454 to 752°F) ±0.5°C or 0.08% 50°C (90°F)
C 0 to 2320 °C
(32 to 4208 °F) ±0.5°C or 0.08% 50°C (90°F)
D 0 to 2320 °C
(32 to 4208 °F) ±0.5°C or 0.08% 50°C (90°F)
Voltage mV
-10 to 75 mV ±20µV or
0.08% 5 mV
-100 to 100 mV ±20µV or
0.08% 5 mV
-100 to 500 mV ±30µV or
0.08% 6 mV
-100 to 2000 mV ±50µV or
0.08% 20 mV

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Connection Head Ratings & Approvals
FM & CSA FM Approved & CSA Certified:
Head Mount for use in Class I, Division 1,
Groups B, C, and D; Dust-Ignition-proof for
Class II, Division 1, Groups E, F, and G, Class
III; hazardous (classified) locations, indoor and
outdoor (Type 4X and IP66)
Ta = -50°C to +125°C
FM CERT 3009725
CSA CERT 1097880
ATEX & IECEx ATEX Certified: Flameproof and Dust
II 2 G D
Ex d IIC Gb
Ex tb IIIC Db IP68
Ta = -40°C to +85°C
ATEX CERT Sira09ATEX1023U
IECEx Certified: Flameproof and Dust
Ex d IIC Gb
Ex tb IIIC Db IP68
Ta = -40°C to +85°C
IECEx CERT SIR 09.0006U
Year of Construction
This information is printed on the enclosure nameplate.

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SAFETY INFORMATION
!
CAUTION: Read complete
instructions prior to installation and
operation of the temperature
transmitter.
Installation and service should be performed only by trained service
personnel.

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INSTALLATION
For hazardous area applications, the installer is responsible for
following all the appropriate hazardous area installation requirements.
For Installation in USA: The Smart Temperature Transmitter must
be installed in accordance with the National Electrical Code (NEC)
NFPA 70.
For Installation in Canada: The Smart Temperature Transmitter
must be installed in accordance with the Canadian Electrical Code
CSA 22.1.
For European Community: The Smart Temperature Transmitter
must be installed in accordance with the ATEX directive 94/9/EC; the
enclosure certificates ATEX CERT: Sira09ATEX1023U and IECEx
CERT: SIR 09.0006U.
All wiring connectors are accessed by opening the connection head
cover. It is not necessary to remove temperature transmitter from the
connection head during installation.
Models PD303 and PD305 should be configured in a safe area prior
to installation, using the USB adapter and PC software. Models
PD304 and PD306 configuration and programming can be performed
through the HART communication interface by accessing the loop and
following all the hazardous area safety procedures.
!
CAUTION: Disconnect from supply before opening enclosure.
Keep cover tight while circuits are alive. Conduit seals must be
installed within 18" of the enclosure.

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Unpacking
Remove the temperature transmitter from box. Inspect the packaging
and contents for damage. Report damages, if any, to the carrier.
If any part is missing or the temperature transmitter malfunctions,
please contact your supplier or the factory for assistance.
Mounting
The Head Mount Smart Temperature Transmitter is designed to
mount on a DIN 43 729 Form B connection head using M4 screws.
The PD303-PD306 with explosion-proof or safe area NEMA 4
housings can be mounted using two different methods, those are:
conduit mounting, or direct mounting.
In those cases where the preferred installation of the ExSense
transmitter is directly mounted to a probe or thermowell, care should
be exercised to assure that the maximum temperature specification of
the transmitter is not exceeded due to heat transfer from the process.
High temperature applications require the use of a pipe/thermowell
extension and union of the appropriate length.
(continued next page)

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Please refer to the graph below. The graph will provide an
approximation of the temperature rise of the ExSense enclosure
above ambient with different pipe/thermowell extension lengths and
process temperatures. One should allow for some safety margin, as
there are a number of variables that effect this information that cannot
be easily accounted for. The maximum operating temperature of the
PD303-PD306 ExSense transmitter is 85°C.
Increase in
Housing Temperature
Above Ambient
Pipe/Thermowell Extension Length
Process:
60°C / 108°F
50°C / 90°F
40°C / 72°F
30°C / 54°F
20°C / 36°F
10°C / 18°F
0°C / 0°F
100 125 150 175 200 225 250 mm
3.93 4.92 5.90 6.89 7.87 8.85 9.84 inch
800°C / 1472°F
500°C / 932°F
250°C / 482°F

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Connections
Make sure to turn off the power to the loop before accessing the
screw terminals on the transmitter.
To access the connectors on models PD303-306, remove the
connection head cover.
The connection diagram on the transmitter head clearly indicates
where to connect the loop power and the various types of sensors.
1: + Loop output (4-20 mA)
2: - Loop output (4-20 mA)
3: RTD 3-wire connection (odd color lead)
4: TC+, mV+, or RTD 4-wire connection
5: RTD 3-wire connection (same color lead)
6: TC-, mV-, or RTD 3-wire connection (same color lead)
Note: mV signals are connected to terminals 4(+) and 6(-).
Refer to Figure 1 for terminal positions and connections.
!
Observe all safety regulations. Electrical wiring should be
performed in accordance with all agency requirements
and applicable national, state, and local codes to prevent
damage to the temperature transmitter and ensure
personnel safety.
Note: The 4-20 mA signal may be grounded at one point only, usually at
the negative of the power supply or it may be left ungrounded.

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Figure 1. Sensor & Loop Connectors
Sensor & 4-20 mA Output Connections
Figure 2. Sensor & 4-20 mA Connections

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Connections to PC & Communicator
Figure 3. Connections to PC with USB Modem
HART Connections to PC & Communicator
Figure 4. Connections to PC & HART Communicator

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SETUP AND PROGRAMMING
HART communication requires a minimum of 250 Ωin
the 4-20 mA loop. See Load Impedance specification to
calculate the maximum load based on the power supply
voltage (e.g. 650 Ω@ 24 VDC).
The HART signal can be accessed using a HART
communicator or a HART modem anywhere in the loop.
Overview
There are no jumpers, switches, or potentiometers involved in the
setup process of the smart temperature transmitter.
All setup and programming can be performed by one of these
methods:
1. USB modem and PC running the free software provided
2. Using a HART modem and a PC running the free software
provided
3. Using a HART Communicator (not all parameters are available)
Note: Input Type and Units cannot be changed with a HART
Communicator.
It is recommended to commission the smart temperature transmitter
prior to installation in a hazardous area.
After all connections have been completed and verified, apply power
to the temperature transmitter.