Properties
1.1 2AI TC HF analog electronic module (6ES7134-4NB01-0AB0)
2AI TC HF analog electronic module (6ES7134-4NB01-0AB0)
Manual, 04/2007, A5E01076892-01
11
Temperature compensation
•
Internal temperature compensation
Possible with TM-E15S24-ATTM-E15C24-AT
•
External temperature compensation by
looping a compensating box into the
measuring circuit
Possible, one external compensating box per
channel
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
The specified error limits apply starting with 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
In the case of thermocouple Type C: ± 8 K
3
In the case of thermocouple Type C: ± 6 K
Compensation of thermocouples with a compensating box
As well as the error limits of the 2AI TC HF electronic module (see Table "Technical
specifications 2AI TC HF (6ES7134-4NB01-0AB0)" in this chapter) you must also take the
accuracy of the compensating box into account.
Internal compensation with TM-E 15S24-AT or TM-E15C24-AT
Factors affecting the accuracy of the temperature measurement
The connected channel with internal compensation must be
assigned parameters separately.
Rules on using internal
temperature compensation
Don't insert the 2AI TC HF directly next to a power module with
high incoming current (> 3 A). An incoming current of 10 A can
result in a further ± 2 K error.
The station must be in a static state
1
to ensure that the specified
accuracy is achieved.
Accuracy is achieved 30 minutes after the static state has been
achieved.
Additional technical specifications
for the error limits of the
2AI TC HF
The overall malfunction of the channel is caused by the
combination of the input error and the internal compensation
error.
1
The static state is defined by an almost constant ambient temperature (no draft, for example, in a
closed cabinet!)
