WABCO WÜRTH COOLIUS A30, Сервисная книжка, Страница: 20 / 26

20 COOLIUS A30
6.1 Analysis of the displayed values
NOTE:
Machine with pressure transmitter and weight scales correctly calibrated.
Pressure transmitter
Remove the LP quick coupler, then the absolute pressure compensated value shall be around the absolute
atmospheric pressure -10 / -15 mb.
Blow compressed air into the LP service hose (blue):
The display has to show an increase of the absolute pressure value and of the ADC points.
Disconnect the pressure transmitter connector from the mainboard “A” (PWR).
The absolute pressure value shall be 1 and the pressure transmitter ADC point should be roughly 1.
Refrigerant weight scale
The display shows the net value (Total–Tare Weight Value)
The ADC point value is the total value.
The first four numbers shall be stable, the last three can float.
The values displayed are directly linked to the weight on the scale.
As a reference, consider that a calibrated scale with all the containers empty shall show roughly 8900000
points. Values that are significantly different from the reference indicate a possible problem.
To check quickly if the weighing system is working correctly it is enough to press on the load cell (scale
bracket): both the ADC points and the net value compensated shall increase.
Used oil weight scale
The display shows the net value (Total–Tare Weight Value)
The ADC point value is the total value.
The values displayed are directly linked to the weight on the scale.
Mainboard temperature
The temperature is shown in tenths of Celsius degrees (°C).
The displayed values are the temperatures of each sensor mounted on the two mainboards.