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Standard Analog Current
Output Modules
Features
Provides a a single channel of optically- isolated digital-
to-current conversion
The “T” module is transformer isolated, which
eliminates any ground loop problems
Modules plug into any Standard Classic analog I/O rack
and are secured by a captive screw
Description
The current output modules provide a single channel of
optically- isolated digital-to-current conversion. The “T”
module is transformer isolated, which eliminates any ground
loop problems. The DA3 and DA8 modules are UL approved.
Specifications
DA3 DA3T DA8
Output Current 4-20 mA 4-20 mA 4-20 mA
Minimal Current Draw 1.6 mA 1.6 mA 1.6 mA
Accuracy
Power Requirements
Agency Approvals UL, CE, RoHS, DFARS CE, RoHS, DFARS UL, CE, RoHS, DFARS
μA 16 μA 20 μA
16
20 mA at +15 (+/- 0.25) VDC
10 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC
22 mA at +15 (+/- 0.25) VDC
22 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC
Modules plug into any Standard Classic analog I/O rack and
are secured by a captive screw.
20 mA at +15 (+/- 0.25) VDC
10 mA at -15 (+/- 0.25) VDC
24 mA at 5 VDC
Standard Analog Current Output Modules
Response Time Full scale step change in 3 ms
Resolution 12 bits
Isolation
Input-to-Output
Input-to-Analog Supply (T Modules)
Temperature
Operating
Storage
DA3T: All of the lower A terminals on the mounting rack are tied together.
These provide a convenient tie point for shared loop source return. To use the
DA3T with a common loop supply, connect any one lower A terminal to the
shared loop source "-", then jumper upper A to lower A for each DA3T.
4,000 Vrms
4,000 Vrms
0 °C to 70 °C
- 25 °C to 85 °C
Part Numbers
Part Description
DA3 4-20 MA Output
DA3T 4-20 MA Output Isolated
DA8 0-20 MA Output
© 2011–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or regist ered trademarks of their respective companies or organiz ations.
Form 0442-140410
PAG E
1
DATA SHEET
Page 2
Connections
Standard Analog Current Output Modules
Standard Analog Current Output Modules
DATA SHEET
Form 0442-140410
PAG E
2
© 2011–2014 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.
Page 3
Standard Analog Current Output Modules
Connections (continued)
Standard Analog Current Output Modules
© 2011–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or regist ered trademarks of their respective companies or organiz ations.
Form 0442-140410
PAG E
3
DATA SHEET
Page 4
Schematics
Standard Analog Current Output Modules
Standard Analog Current Output Modules
DATA SHEET
Form 0442-140410
PAG E
4
© 2011–2014 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.
Page 5
More About Opto 22
Products
Opto 22 develops and manufactures reliable, flexible, easy-to-use
hardware and software products for industrial automation,
energy management, remote monitoring, and data acquisition
applications.
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puts your system on your mobile device. With zero
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puts mobile-ready gadgets at your fingertips. Tag them from your
existing tag database, and they automatically scale for use on any
device with a modern web browser. See
information and your free trial.
groov.com
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 Proje c t
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, the rack-mounted SNAP PAC Rseries, and the software-based SoftPAC™ all 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.
Wired+Wireless™ models are also available.
PAC Project S o f t ware Su ite
Opto 22’s PAC Project Software Suite provides full-featured, costeffective 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
™
Software Suite
™
groov
for more
essional, available for separate purchase, adds one SoftPAC,
Prof
OptoOPCServer, OptoDataLink, options for controller redundancy
or segmented networking, and support for legacy Opto 22 serial
mistic™ I/O units.
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).
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
test each product twice before it leaves our
factory, rather than only testing a sample
of each batch, we can guarantee most
solid-state relays and optically isolated I/O
modules for life.
mprehensive technical support for Opto 22 products. Our staff
co
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
ntact Opto 22 headquarters at
co
or 951-695-3000, or visit our website at
© 2014 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 1335-131203
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