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
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.
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
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.
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Quality
Founded in 1974, Opto 22 has established a
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All are made in the U.S.A. at our manufacturing
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mprehensive technical support for Opto 22 products. Our staff
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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
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In addition, hands-on training is available for free at our
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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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