Technical data

Function Tests Air Top 2000 ST
610
6.4.5 Overheating sensor component
See Fig. 903, Item 8
If you conduct this resistance test with a digital multimeter,
the overheating sensor must have the values shown in the
following diagram (Fig. 601).
Fig. 601 Characteristic resistance values of a PT 2000
overheating system in a temperature range of
10 °C to 30 °C
Resistance in ohms
Temperature in °C
2
2
2
1
2
Overheating sensor
Contacts detached?
no
yes
Procedure Testing and
measuring
equipment
Visual
Visual inspection
Visual inspection
Visual inspection
Resistance
measurement
Digital
multimeter
no
yes
no
yes
yes
Cables damaged?
Connector damaged?
Resistance outside
2 - 2.5 kohms?
no