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C 305
Calibrated leak values programming
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Programming the
calibrated leak
parameters
This operation can be made with the data written on the calibrated
leak identification label or the calibration certificate delivered with it.
Example of identification label:
HELIUM CALIBRATED LEAK
Helium leak rate : 1.0x10-8 mbar.l/s at 20 °C
Date of calibration : 10 Dec 2001
% loss per year : 2 %
% increase per °C : 3 %
Note: At each time the operator modify the “Location” parameter, he
should also re-adjust all the parameters (if necessary).
tracer gas
unit
leak value
location
year
loss per year
temperature
temp. coef.
Adjustment
Adjustment
Adjustment
Adjustment
Adjustment
Adjustment
Adjustment
Adjustment
C 110
Leak location selection Note: The “Location” parameter (internal or external) concerned the
location of the calibrated leak used for the calibration and not the
type of calibration.
Содержание ASM 142
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