Varian 990 dCLD II, Operation Manual

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Model 990 dCLD II Component Leak Detector
4-18
4.7 Service Menus
The Service Menus are mainly used by service technicians to provide service to your sys-
tem. There are times, however, that you may want to view the information that is accessed
via these screens to troubleshoot a situation, or you may be asked to provide this informa-
tion to a service technician.
Touch the TO SERVICE MENU box on the Main Menu to display the Service Menu Selec-
tion screen as shown in Figure 4-16, or BACK to return to the Home Screen.
Figure 4-16 Service Menu Selection Screen
CAUTION
Many of the values for the parameters included in the Service
Menus are calculated when the 990 dCLD II performs functions
such as CALIBRATE and ZERO. Changing these values can
cause unreliable test results.
4.7.1 Manual Calibration
Touch the MANUAL CALIBRATE box to display the Manual Calibration screen shown in
Figure 4-17.
Figure 4-17 Manual Calibration Screen
You can use the Manual Calibration screen to view or change the calculated Gain. Setting
the gain greater than 5.0 or less than 0.5 causes the system to report an unsuccessful cali-
bration and revert to the values stored prior to calibration.
BACK
LEAK RATE
OUTPUT
CAL
LEAK
SET-UP
REJECT &
AUDIO SET
POINTS
RANGING
SET-UP
CONTROL
SET-UP
TO
SERVICE
MENU
ZEROING
SCREEN UNITS
SET-UP
BACK
CALIBRATE
MANUAL
GAUGE
CAL
MANUAL
TUNING
BACK
CALIBRATE
MANUAL
GAUGE
CAL
MANUAL
TUNING
GAIN: X.X
MANUAL CALIBRATION
BACK
OK
DN
UP
NXT
ESC