Siemens SIMATIC ET 200S Manual page 504

Analog Electronic Modules
Data for selection of the sensor
Input range (rated
value)/input resistance
•
Voltage
•
Thermocouple
Permitted continuous input
voltage (destruction limit)
Connection of signal
generators
•
For voltage
measurement
Characteristics linearization
Temperature compensation
•
Internal temperature
compensation
•
External temperature
compensation by
looping a compensation
unit into the measuring
circuit
Compensation of thermocouples with a compensation unit
In addition to the error limits of the 2AI TC High Feature electronic module
(see "Technical Specifications" table in this chapter), you must also consider the
precision of the compensation unit.
12-98
80 mV/min. 1 MΩ
Type E, N, J, K, L, S,
R, B, T, C/min. 1 MΩ
20 V, continuous
possible
Yes, configurable for
Type E, N, J, K, L, S,
R, B, T, C as per
IEC 584
Possible, with
TM-E15S24-AT
TM-E15C24-AT
Possible, one
external
compensation
unit per channel
Smoothing of measured
values
Level
weak
medium
strong
1)
the specified error limits apply as of the following
temperatures:
thermocouple type T: --200 _C
thermocouple type K: --100 _C
thermocouple type B: +700 _C
thermocouple type N: --150 _C
thermocouple type E: --150 _C
thermocouple type R: +200 _C
thermocouple type S: +100 _C
2) With thermocouple Type C: 8 K
3) With thermocouple Type C: 6 K
ET 200S Distributed I/O System
Yes, configurable in
4 stages by digital
filtering
Time constant
No 1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
EWA-4NEB 780602402-12