Opto 22 AD14T Data Sheet

Standard Analog RTD
Input Modules

Features

Single channel of optically isolated RTD temperature­to-digital conversion

4,000 Vrms channel-to-channel isolation

Description

AD10T2 and AD14T modules provide a single channel of
optically-isolated RTD temperature-to-digital conversion with
4,000 Vrms of transient isolation. Modules plug into any
Standard Analog I/O rack and are secured by a captive screw.

Field connections to the modules are made via a terminal on
the base of the analog I/O rack and two terminals on the top
of the I/O module.

AD10T2 and AD14T modules are suitable for temperature
measurements where the RTD probe is grounded or when
ground loop currents exist.

Standard Analog RTD Input Modules

AD10T2

Part Numbers

Part Description

AD10T2 100 Ohm RTD Input, Isolated
AD14T 10 Ohm RTD Input, Isolated

© 1991–2015 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 0444-150327

PAG E

1

DATA SHEET

Standard Analog RTD Input Modules

Specifications

AD10T2 AD14T

RTD Input 100 Ω platinum (α = 0.00385) 10 Ω copper
Nominal Temperature Range - 50 °C to 350 °C - 55 °C to 150 °C
Nominal Temperature Range - 58 °F to 662 °F - 67 °F to 302 °F
Over/Under Range - 60 °C to 812 °C N/A
Over/Under Range - 140 °F to 1493 °F N/A
Accuracy ± 0.4 °C ± 0.6 °C
Resolution 12 bits 12 bits
Response Time full scale step change in 100 ms full scale step change in 100 ms

Isolation Transient

Input-to-Output
Input-to-Analog Supply

Power Requirements

4,000 V

RMS

4,000 V

RMS

45 mA at +15 (+/- 0.25) VDC and
45 mA at -15 (+/- 0.25) VDC

4,000 V

RMS

4,000 V

RMS

35 mA at +15 (+/- 0.25) VDC and
35 mA at -15 (+/- 0.25) VDC

Temperature

Operating

RTD Connection Diagram

Standard Analog RTD Input Modules

0 °C to 70 °C

- 25 °C to 85 °C

0 °C to 70 °C

- 25 °C to 85 °C

DATA SHEET

PAG E

2

Form 0444-150327

© 1991–2015 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.