Outer Temperature Sensor (Outside Air Temperature Sensor) - Komatsu PC88MR-10 Shop Manual

Outer temperature sensor (outside air temperature sensor)

1. Connector
2. Sensor
Function
(PC138-K55C-042-K-00-A)
The outside air temperature sensor is installed on the top of the battery.
The outside air temperature sensor has feature of change in resistance by temperature change, therefore,
can detect the ambient temperature.
The air conditioner controller determines the ambient temperature by converting the changes in the
resistance of the outer sensor resistor into voltage changes.
Only when the air conditioner is on AUTO mode, the air conditioner controller controls the blower motor
and the air mix servomotor with the data of the outer sensor in order to adjust the temperature and air flow.
PC88MR-10
Outer temperature sensor (outside air temperature
80 Appendix
sensor)
(ALL-K55C-041-K-00-A)
80-21