Technical specifications
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Voltages, currents, electrical potentials
Constant measuring current for resistive transducers
typ. 1 mA
Electrical isolation
● between channels and the backplane bus
Yes
● between channels
No
● between channels and power bus
Yes
Current consumption
● from power supply (power bus)
max. 22 mA
Power loss of module
0.4 W
Formation of analog values
Measuring principle
Integrating (sigma-delta)
Integration/conversion time/resolution (per channel)
● Integration time can be configured
Yes
● Interference frequency suppression in Hz
60; 50
● Basic conversion time including integration time (per
channel) in ms
66; 80
● Additional conversion time for wire break
5
● Cycle time in ms
Number of active channels per module x
basic conversion time
● Resolution (including overrange)
15 bits + sign
Analog electronic modules
13.4 Analog electronics module 4 AI RTD
ET 200iSP
280
Operating Instructions, 11/2017, A5E00247483-07