Calibrating The Pressure Transducer - Waeco AirCon Service Center BMW 2500G Operating Manual

Service tasks
"R134a to system" indicates how many grams of refrigerant have been
added to the air conditioning systems using the menu item "Short selec-
tion" or "Free selection" since the last reset (see date).
"Vacuum time" indicates how long the vacuum pump has operated
since the last reset (see date).
"Service completed" displays the amount of service work performed
using the air conditioning service unit since the last reset (see date).
9.5

Calibrating the pressure transducer

I
NOTE
The pressure transducer has to be correctly calibrated in order to make
accurate pressure measurements.
Calibration is required:
 Every four weeks
 If the AirCon Service Center has been subjected to heavy shaking
 Every time the vacuum pump oil is changed
 If the display shows implausible pressure readings
1. In the basic menu, use the cursor keys  or  to select "Other
selections":
2. Press ENTER to confirm.
3. Use the cursor keys  or  to select "Service":
4. Press ENTER to confirm.
116
R134a to system
g.
STOP-EXIT
Vacuum time
min.
STOP-EXIT
Service completed:
Number
STOP-EXIT
Short selection
Free selection
Other selections
ENTER-OK
Int. vessel filling
Flushing
Reset scales.
Service.
BMW 2500G
07/03/20
1200
07/03/20
79
08/03/20
4
EN