Rockwell Automation 1794-IF8IH FLEX I/O 8 Isolated Input HART Analog Module Installation Instructions - Manual (Page 24)

24 FLEX I/O Isolated Input HART Analog Module
Publication 1794-IN115C-EN-P - April 2009
Normal mode rejection ratio
- current terminal >70 dB @ 50/60 Hz (4.17 Hz ADC conversion rate)
>65 dB @ 50/60 Hz (10.0 Hz ADC conversion rate)
>75 dB @ 50 Hz (16.7 Hz ADC conversion rate)
>85 dB @ 60 Hz (19.6 Hz ADC conversion rate)
Common mode rejection
ratio >60 dB at 50 Hz
>60 dB at 60 Hz
Step response to 99% -
current terminal 4.17 Hz conversion rate = 480 ms
10.0 Hz conversion rate = 200 ms
16.7 Hz conversion rate = 120 ms
19.6 Hz conversion rate = 101 ms
62 Hz conversion rate = 32 ms
470 Hz conversion rate = 4 ms
Input resistance 249
Ω
±1%
Absolute accuracy 0.1% Full Scale @ 25 °C
Accuracy drift with
temperature
(1)
0.4% Full Scale for 0 °C…55 °C
Calibration required Factory calibrated
Can be calibrated in field when necessary
Overload, max ± 32 mA continuous
Indicators 1 red/green power/status indicator
Isolation voltage 120V (continuous), Basic Insulation Type
Type tested at 1000V ac for 60 s, between User power to
system, channel to system, and channel to channel
Flexbus current external
input
(2)
5V DC 80 mA
24V DC 190 mA
Power dissipation, max 4.8 W @ 31.2V DC
Enclosure type rating None (open-style)
Terminal block screw torque Determined by installed terminal base
Wire size Determined by installed terminal base
FLEX I/O 8-input Isolated HART Module - 1794-IF8IH
Attribute Value