Alcatel Vacuum Technology ASM 182 TD+ User Manual

Purpose of the
internal auto-calibration
When should an
internal auto-calibration
be performed?
Alcatel Vacuum Technology France - ASM 182 TD+ - ASM 192 T2D+ User's Manual
Basic internal auto-calibration of the
leak detector
Check that the leak detector is correctly adjusted to detect the
carrier gas selected and to display a correct leak value.
To calibrate the leak detector, a calibrated leak is used as a
reference: the leak detector is equipped with an internal
helium calibrated leak with reservoir and temperature
compensation sensor.
The internal auto-calibration could be:
- fully automatic if the operator uses the calibrated
leak in the detector,
- semi-automatic if the operator uses an external
calibrated leak.
When starting the leak detector in order to make sure that it
is in proper operating condition.
For high sensitivity test and optimized measurement
accuracy: it is advised to let the internal temperature of the
leak detector stabilize for about 30 min after start-up and then
start an auto-calibration.
If in doubt regarding the proper operation of the leak
detector (capability to properly detect a helium leakage): at
any time, an internal auto-calibration may be started.
In case of intensive and continuous use: start an internal
auto-calibration at the begining of each shift (8 hours of
operation).
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