The internal calibrated leak is specifically designed to fit the
present leak detector. It is composed of:
■ a helium reservoir,
■ a temperature sensor (used to take into account the effect of
temperature on the leak rate),
■ a built in membrane (to calibrate the helium leak rate),
■ a special quick connection device,
■ an identification label (similar to the identification label of
an external calibrated leak).
It is delivered with a calibration certificate.
It is recommended to have every calibrated leak recalibrated
at regular intervals to validate its value.
Accessories A 70
The internal auto-calibration can be:
■ fully automatic:
The default value proposed is ON: the internal auto-calibra-
tion is automaticaly activated during the start-up process of
the leak detector. It does not require any operator action. The
initial auto-calibration during the start-up sequence allows the
unit to be immediately operationnal.
■ on operator request:
An internal auto-calibration can be started by the operator
whenever the leak detector is not in test mode.
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C 71
Alcatel Vacuum Technology France - ASM 182 TD+ - ASM 192 T2D+ User’s Manual
Basic internal calibration of the leak
detector
Edition 03 - December 01GB 00969 -
Internal
calibrated leak
Recalibration
Internal
auto-calibration with
the internal He
calibrated leak
Internal Helium calibrated leak
ASM 192 T2D+ASM 182 TD+
