Heinrichs Messtechnik GmbH
OPERATING MANUAL TMU-W / UMC4
Page 91 of 118
SELF-TEST functional class
The SELF-TEST function class is comprised of the functions relating to the self-test of the sensor.
The diagnostic functions of the transmitter, which monitor the proper functioning of the electronics and the
software, are always active and cannot be switched off. The excitation current can be monitored in addition.
SELF-TEST
Sensor test
on / off
Max. deviation of
excitation
SELF-TEST
functional class
Sensor test
[off]
_______________
off
on
Max. deviation
020 %
Self-test
calibration
Calibration
[no]
_______________
no
yes
Monitoring
sensor
S1 7749 S2 7812
E 1280
Display of
sensoramplitudes
S1 090 S2 090 mV
112.8 Hz 12.8 mA
