C 304
Correction factor
2/2
GB
00263
-
E
d
it
io
n
05
-
J
une
08
Procedure with user level
4
selection
adjustment
VACUUM COR
SNIF COR
VACUUM
COR
SNIF COR
Adjustment
Adjustment
Adjustment
Adjustment
C 110
General notes
(in vacuum or
sniffing test mode)
•
During the external calibration process:
basic digital display x VACUUM/SNIF COR = target value
Basic digital display is the helium signal basic display without
correction ratio (as if COR indicator is OFF or VACUUM/SNIF COR
equal to 1.00E-00).
•
Once the external calibration correction is validated, the digital
display is modified:
corrected digital display = basic digital display x VACUUM/SNIF COR
The analog display (standard scale) always displays the basic value of
the helium signal which is not modified by VACUUM/SNIF COR.
•
During the last step of the external calibration, the VACUUM/
SNIF COR is displayed and automatically calculated with respect to
the fixed target value and the present basic signal value.
The VACUUM/SNIF COR ratio is fixed and memorized when the
AUTOCAL key is pressed to confirm the CORRECTION and stop the
external calibration process.
•
The COR indicator is ON as soon as the VACUUM/SNIF COR is
ON and different from 1.00E-00.
If the target value is the same value as the standard signal on the
digital display, in other word if VACUUM/SNIF COR is equal to
1.00E+00, the COR indicator is automatically OFF: the external
calibration is OFF.
•
If RESET is pressed during or at the last step of the external
calibration process, the leak detector comes back to the previous
digital display status which was effective before the external
calibration request and VACUUM/SNIF COR is not changed.
Summary of Contents for ASM 142
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