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Rockwell Automation 1734-IT2I, Series C Point I/O RTD and Isolated Thermocouple Input Module Installation Instructions User Manual

Page 20

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20 POINT I/O™ RTD and Isolated Thermocouple Input Modules

Publication 1734-IN011H-EN-E - February 2014

Input voltage

±75 mV

Absolute accuracy

0.1% Full Scale @ 25 °C (77 °F)

Accuracy drift with temp.

30 ppm/°C

Input impedance

100 K

Ω

Input resistance

1 M

Ω

Conversion type

Delta Sigma

Data format

Signed integer

Maximum overload

Input not overvoltage protected

Calibration

Factory calibrated

Input update rate (per module)

20 ms @ Notch = 50 Hz

17 ms @ Notch = 60 Hz (default)

10 ms @ Notch = 100 Hz

8 ms @ Notch = 120 Hz

5 ms @ Notch = 200 Hz

4 ms @ Notch = 240 Hz

3 ms @ Notch = 300 Hz

3 ms @ Notch = 400 Hz

2 ms @ Notch = 480 Hz

Step response (per channel)

60 ms @ Notch = 50 Hz

50 ms @ Notch = 60 Hz

30 ms @ Notch = 100 Hz

25 ms @ Notch = 120 Hz

15 ms @ Notch = 200 Hz

13 ms @ Notch = 240 Hz

10 ms @ Notch = 300 Hz

8 ms @ Notch = 400 Hz

6 ms @ Notch = 480 Hz

Common mode rejection rate

120 dB

Normal mode rejection rate

-60 dB

Notch filter

-3 dB settable at the following:

13.1 Hz @ Notch = 50 Hz

15.7 Hz @ Notch = 60 Hz

26.2 Hz @ Notch = 100 Hz

31.4 Hz @ Notch = 120 Hz

52.4 Hz @ Notch = 200 Hz

62.9 Hz @ Notch = 240 Hz

78.6 Hz @ Notch = 300 Hz

104.8 Hz @ Notch = 400 Hz

125.7 Hz @ Notch = 380 Hz

POINT I/O Isolated Thermocouple Input Module – 1734-IT2I

Attribute

Value