
Standard Thermocouple
Modules
Features
Features
Rugged Packaging
Rugged Packaging
4000 Vrms Transient Isolation
4000 Vrms Transient Isolation
12-bit Resolution
12-bit Resolution
Factory Calibrated, No User Adjustments
Factory Calibrated, No User Adjustments
Operating Temperature: 0 to 70 °C
Operating Temperature: 0 to 70 °C
"T" Models Offer Channel-to-Channel Isolation
"T" Models Offer Channel-to-Channel Isolation
Description
Description
The thermocouple analog modules provide a single channel
The thermocouple analog modules provide a single channel
of optically isolated temperature-to-digital conversion. The
of optically isolated temperature-to-digital conversion. The
modules offer wide nominal input and special over/under
modules offer wide nominal input and special over/under
range capabilities. The 'T' module also includes 4000 Vrms
range capabilities. The 'T' module also includes 4000 Vrms
transient channel-to-channel isolation which eliminates any
transient channel-to-channel isolation which eliminates any
ground loop problems. Modules plug into a Classic standard
ground loop problems. Modules plug into a Classic standard
analog I/O rack and are secured by a captive screw.
analog I/O rack and are secured by a captive screw.
Standard Thermocouple Modules
Part Numbers
Part Description
AD5 J Thermocouple Input
AD5T J Thermocouple Input, Isolated
AD8 K Thermocouple Input
AD8T K Thermocouple Input, Isolated
AD17T R Thermocouple Input, Isolated
AD18T T Thermocouple Input, Isolated
AD19T E Thermocouple Input, Isolated
© 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Form 439-111026
PAG E
1
DATA SHEET

Standard Thermocouple Modules
Specifications
AD5 AD5T AD8 AD8T
Thermocouple Type J J K K
Nominal Tempera-
ture
Range °C
Nominal Temperature
Range °F
Over/Under Range
Capability °C
Over/Under Range
Capability °F
Average
Resolution
Accuracy* ± 3 °C (0 to 700 °C) ± 3 °C (0 to 700 °C) ± 3 °C (-100 to 924 °C) ± 3 °C (-100 to 924 °C)
Repeatability ± 1 °C ± 1 °C ± 1 °C ± 1 °C
Power
Requirements
*Accuracy may be improved by the use of "Set Offset" and "Set Gain" commands in the OPTOMUX command set.
0° to 700° 0° to 700° -100° to 924° -100° to 924°
32° to 1292° 32° to 1292° -148° to 1695° -148° to 1695°
-20° to 1200° -20° to 1200° -125° to 1250° -125° to 1250°
- 4° to 2192° - 4° to 2192° -193° to 2282° -193° to 2282°
0.18 °C
(0 to 700 °C)
0.36 °C
(700 to 1200 °C)
17 mA at +15 (+/- 0.25)
VDC
12 mA at -15 (+/- 0.25)
VDC
0.18 °C
(0 to 700 °C)
0.36 °C
(700 to 1200 °C)
35 mA at +15 (+/- 0.25)
VDC
35 mA at -15 (+/- 0.25)
VDC
± 0.25 °C
(-100 to 924 °C)
± 0.5 °C
(924 to 1250 °C)
17 mA at +15 (+/- 0.25)
VDC
12 mA at -15 (+/- 0.25)
VDC
± 0.25 °C
(-100 to 924 °C)
± 0.5 °C
(924 to 1250 °C)
35 mA at +15 (+/- 0.25)
VDC
35 mA at -15 (+/- 0.25)
VDC
Standard Thermocouple Modules
DATA SHEET
Form 439-111026
PAG E
2
© 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to chang e. Brand or product names used herein are trademarks or register ed trademarks of their respective companies or organizations.

Standard Thermocouple Modules
Isolation:
Input-to-Output
Input-to-Analog Supply*
4000 Vrms (Transient)
4000 Vrms
Cold Junction Compensated: Yes
Open Thermocouple Detection: Yes
Input Response Time: 5% of scale change in 8.5 ms
63% of scale change in 165 ms
Ambient Temperature:
Operating
Storage
0° to 70°C
- 25° to 85°C
Resolution: 12 bits
Specifications (continued)
AD17T AD17T AD18T AD19T
Thermocouple
Type
Nominal Temperature
Range °C
Nominal Temperature
Range °F
Over/Under Range
Capability °C
Over/Under Range
Capability °F
Average Resolution
Accuracy*
Repeatability
Power Requirements
*Accuracy may be improved by the use of "Set Offset" and "Set Gain" commands in the OPTOMUX command set.
RS TE
0° to 960° 0° to 1034° -200° to 224° -100° to 435°
32° to 1760° 32° to 1893° -328° to 435° -148° to 815°
-50° to 1768° -50° to 1768° -200° to 400° -100° to 900°
-58° to 3214° -58° to 3214° -328° to 752° -148° to 1652°
0.23 °C
(200 to 960 °C)
0.35 °C
(960 to 1768 °C)
± 5 °C
(200 to 960 °C)
± 3.5 °C
(960 to 1768 °C)
± 2.5 °C
(200 to 960 °C)
± 1.8 °C
(960 to 1768 °C)
30 mA at +15 (+/- 0.25)
VDC
30 mA at -15 (+/- 0.25)
VDC
0.25 °C
(200 to 1034 °C)
0.48 °C
(1034 to 1768 °C)
± 5.2 °C
(200 to 1034 °C)
± 4.2 °C
(1034 to 1768 °C)
± 2.6 °C
(200 to 1034 °C)
± 2.1 °C
(1034 to 1768 °C)
30 mA at +15 (+/- 0.25)
VDC
30 mA at -15 (+/- 0.25) VDC
0.1 °C
(-200 to 244 °C)
0.14 °C
(244 to 400 °C)
± 3 °C
(-100 to 224 °C)
± 2 °C
(224 to 400 °C)
± 1.0 °C
(-100 to 0 °C)
± 0.6 °C
(0 to 224 °C)
± 0.4 °C
(224 to 400 °C)
30 mA at +15 (+/- 0.25)
VDC
30 mA at -15 (+/- 0.25)
VDC
0.13 °C
(-100 to 435 °C)
0.23 °C
(435 to 900 °C)
± 3 °C
± 0.8 °C
(-100 to 0 °C)
± 0.6 °C
(0 to 435 °C)
± 0.5 °C
(435 to 900 °C)
30 mA at +15 (+/- 0.25)
VDC
30 mA at -15 (+/- 0.25)
VDC
Standard Thermocouple Modules
General Specifications
© 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
DATA SHEET
Form 439-111026
PAG E
3

Connections
Model
T/C
Type
Polarity/Color
+-
AD5/AD5T J WHITE RED
AD8/AD8T K YELLOW RED
AD17T R BLACK RED
AD18T T BLUE RED
AD19T E PURPLE RED
AD17T S BLACK RED
Standard Thermocouple Modules
Standard Thermocouple Modules
DATA SHEET
Form 439-111026
PAG E
4
© 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to chang e. Brand or product names used herein are trademarks or register ed trademarks of their respective companies or organizations.

More About Opto 22
Products
Opto 22 develops and manufactures reliable, flexible, easy-touse hardware and software products for industrial automation,
energy management, remote monitoring, and data
acquisition applications.
OptoEMU Energy Management System
The easy-to-use OptoEMU Sensor monitors electrical energy
use in your facility and delivers detailed, real-time data you
can see and analyze. The Sensor can monitor energy data from
pulsing meters, electrical panels or subpanels, and equipment.
View energy data online using a software service or
incorporate the data into your control system for complete
energy management.
SNAP PAC System
Designed to simplify the typically
complex process of selecting and
applying an automation system, the
SNAP PAC System consists of four
integrated components:
SNAP PAC controllers
PAC Proj e ct
SNAP PAC brains
SNAP I/O
SNAP PAC Controllers
Programmable automation controllers (PACs) are
multifunctional, modular controllers based on open standards.
Opto 22 has been manufacturing PACs for over two decades.
The standalone SNAP PAC S-series and the rack-mounted
SNAP PAC R-series both handle a wide range of digital, analog,
and serial functions for data collection, remote monitoring,
process control, and discrete and hybrid manufacturing.
SNAP PACs are based on open Ethernet and Internet Protocol
(IP) standards, so you can build or extend a system easily,
without the expense and limitations of proprietary networks
and protocols.
PAC P roj e c t Softwa re Su i t e
Opto 22’s PAC Project Software Suite provides full-featured,
cost-effective control programming, HMI (human machine
interface) development and runtime, OPC server, and
database connectivity software for your SNAP PAC System.
Control programming includes both easy-to-learn flowcharts
and optional scripting. Commands are in plain English;
variables and I/O point names are fully descriptive.
PAC Project Basic offers control and HMI tools and is free for
download on our website, PAC Project
Professional, available for separate purchase, adds
™
Software Suite
™
OptoOPCServer, OptoDataLink, options for controller
redundancy or segmented networking, and support for legacy
Opto 22 serial
SNAP PAC Brains
While SNAP PAC controllers provide central control and data
distribution, SNAP PAC brains provide distributed intelligence
for I/O processing and communications. Brains offer analog,
digital, and serial functions, including thermocouple
linearization; PID loop control; and optional high-speed digital
counting (up to 20 kHz), quadrature counting, TPO, and pulse
generation and measurement.
SNAP I/O
I/O provides the local connection to sensors and equipment.
Opto 22 SNAP I/O offers 1 to 32 points of reliable I/O per
module, depending on the type of module and your needs.
Analog, digital, and serial modules are all mixed on the
same mounting rack and controlled by the same processor
(SNAP PAC brain or rack-mounted controller).
mistic
™
I/O units.
Quality
Founded in 1974, Opto 22 has established a
worldwide reputation for high-quality products. All
are made in the U.S.A. at our manufacturing
facility in Temecula, California. Because we do
no statistical testing and each part is tested
twice before leaving our factory, we can
guarantee most solid-state relays and optically
isolated I/O modules for life.
comprehensiv
staff of support engineers represents decades of training and
experience. Support is
Additional support is always available on our website: how-to
videos, OptoKnowledgeBase, self-training guide,
troubleshooting and user’s guides, and OptoForums.
In addition, hands-on training is available for free at our
or 951-695-3000, or visit our website at
e technical support for Opto 22 products. Our
contac
t Opto 22 headquarters at
© 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Form 1335-110907