Note
Measurement of temperatures with thermocouples
Observe the following when measuring temperatures by means of thermocouples and
assigned redundancy:
The value specified on the "Redundancy" tab under "Tolerance window" is always based on
2764.8 °C. Thus, for example, based on the input of "1" a tolerance of 27 degrees is checked.
When "5" is entered, a tolerance of 138 degrees is checked.
Technical specifications of the AI 8 x TC/4 x RTD
Technical specifications
Dimensions and weight
Dimensions W x H x D (mm) 40 x 125 x 120
Weight Approx. 210 g
Module-specific data
Number of inputs
● With resistance sensor
8
4
Cable length, shielded Max. 200 m
Max. 50 m for
voltage ranges ≤ 80 mV and thermocou‐
ples
Voltages, currents, potentials
Bus power supply 5 V DC
Current consumption from backplane bus Max. 120 mA
Power loss of the module Typ. 0.6 W
Electrical isolation
● Between the channels and backplane bus
Yes
● Between channels
No
Permitted common-mode voltage:
75 V DC or 60 V AC
Isolation, designed for basic isolation
● Between the channels and backplane bus (U
ISO
)
75 V DC or 60 V AC
Isolation tested with 500 V AC or 707 V DC, type test
Analog value formation
Measuring principle SIGMA-DELTA
Integration time/conversion time/resolution (per channel)
● Configurable
● Integration time in ms
Yes
2.5
Yes
16.67
Yes
20
Yes
100
● Basic conversion time =
● 3 x integration time +
● Transient recovery time of optomultiplexer in ms
7.5
+
2.5
50
+
2.5
60
+
2.5
300
+
2.5
ET 200PA SMART I/O modules
10.4 Analog input modules
ET 200PA SMART
192 Operating Instructions, 06/2019, A5E34192013-AB
To Next Page
Loading...
Need help?
General
