Siemens ET 200S Manual page 478

Analog Electronic Modules
Data for Selecting a Sensor
Input range (rated
value)/input resistance
S
Voltage
S
Thermocouple
Permitted input voltage
(destruction limit)
Connection of the sensors
S
For measuring voltage
Characteristic curve lineari-
zation
Temperature compensation
S
Internal temperature
compensation
S
External temperature
compensation by
looping a compensating
box into the measuring
circuit
Compensation of Thermocouples with a Compensating Box
In addition to the error limits of the 2AI TC High Feature electronic module (see the
table entitled "Technical Specifications" in this chapter), you must take into account
the accuracy of the compensating box.
12-122
Smoothing of the measured
values
"80 mV/min. 1 MΩ
Types E, N, J, K, L,
S, R, B, T, C/
min. 1 MΩ
"20 V, continuous
1
following temperatures:
Thermocouple type T: –200 _C
Possible
Thermocouple type K: –100 _C
Yes, parameteriza-
Thermocouple type B: +700 _C
ble for types E, N, J,
Thermocouple type N: –150 _C
K, L, S, R, B, T, C to
Thermocouple type E: –150 _C
IEC 584
Thermocouple type R: +200 _C
Thermocouple type S: +100 _C
In the case of thermocouple type C: "8 K
2
Possible with
TM-E15S24-AT
In the case of thermocouple type C: "6 K
3
TM-E15C24-AT
Possible, one
external
compensating box
per channel
Step
None
Weak
Medium
Strong
The specified error limits apply as of the
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Yes, parameteriza-
ble in 4 steps by
means of digital filte-
ring
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time