35
UMG 509
Thermistor input
The UMG 509 has one thermistor input. The temperature
is measured here via terminals 8 through 10.
Do not exceed the total resistance load (sensor + cable)
of 4kOhm.
PT100
GND
VCC
10
9
8
UMG 512
Fig. Example, temperature
measurement with
a PT100
m
Please note!
Profibus, RS485 and the thermistor input
are not galvanically separated from each
other.
m
Use a shielded cable to connect the
temperature sensor.
PT100