Siemens Simantic ET 200S - Page 219

Analog electronic modules
4.17 2AI TC Standard analog electronic module (6ES7134-4JB00-0AB0)
ET 200S
Manual, Edition 10/2005, A5E00514527-01
4-89
Data for selecting a sensor
Input range (rated value)/input resistance
• Voltage
± 80 mV/min. 1 MΩ
• Thermocouple
Type E, N, J, K, L, S, R, B, T/min. 1 MΩ
Permitted input voltage (destruction limit) ± 10 V, continuous
Connection of the sensors
• For measuring voltage
supported
Characteristic curve linearization Yes, can be assigned parameters for type E, N, J, K, L,
S, R, B, T as per IEC 584
Temperature compensation
• Internal temperature compensation
not supported
• External temperature compensation by
looping a compensating box into the
measuring circuit
Possible, one external compensating box per channel
• External compensation by means of
temperature value obtained at an
analog module of the same ET 200S
station
Yes
Smoothing of the measured values Yes, can be assigned parameters in 4 steps by means of
digital filtering
Step
None
Weak
Medium
Strong
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
1
for Type N: from -150 °C, type B: from 200 °C, type T: from -230 °C
Compensation of thermocouples with a compensating box
As well as the error limits of the 2AI TC Standard electronic module (see Table "Technical
specifications 2AI TC Standard (6ES7134-4JB00-0AB0)" in this chapter) you must also take
the accuracy of the compensating box into account.