Alcatel Vacuum Technology ASM 182 TD+ User manual

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C 71
Alcatel Vacuum Technology France - ASM 182 TD+ - ASM 192 T2D+ User’s Manual
Basic internal auto-calibration of the
leak detector
Edition 03 - December 01
GB 00969 -
Purpose of the
internal auto-calibration
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).
When should an
internal auto-calibration
be performed?

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+

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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 01
GB 00969 -
Internal
auto-calibration
procedure
Note: Internal auto-calibration is ON (ON is the setting by
default.)
Different screens appear
during the auto-calibration
giving internal parameters
values.
Audio messages inform the
operator about internal auto-
calibration process during this
one.
When auto-calibration is
complete, the unit is ready to
start a cycle.
The digital voice gives to the
operator the message
“Detector ready for cycle”.
Note: It is possible to start a test cycle after an autocali-
bration failure.
F1
F3 F2
F4
READY FOR CYCLE
INLET ...
STDBY
...
F1
F3 F2
F4
CALIBRATION VALUES:
TEMPERATURE: 29°C
TARGET VAL: 1.27E-07
PLEASE WAIT ...
...
On request internal
auto-calibration
procedure
Note: Internal auto-calibration is ON (ON is the setting by
default).
Then, the procedure is the same as for the internal auto-
calibration.
F1
F3 F2
F4
READY FOR CYCLE
INLET ...
STDBY
AUTO CAL

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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
auto-calibration
with the external calibrated
leak
It is semi-automatic because the operator should connect a
calibrated leak to the inlet port of the detector.
At the starting of the detector:
The auto-calibration is not start even if the autocal is ON. The
operator is informed that the auto-calibration requests a
calibrated leak connected to the inlet port of the detector.
On operator request:
The operator can start an auto-calibration whenever the leak
detector is not in test mode.
Note: Internal auto-calibration is ON.
Gas selection In standard the gas used is the helium 4.
With the 3 masses option, the operator can
use different gases: Helium 3, Helium 4 or
Hydrogen.
3 masses option C 220
1
Calibrated leak The operator should programm all the
parameter parameters of the used calibrated leak.
Calibrated leak values C 75
2
PROCEDURE
Start the auto- Start the auto-calibration.
calibration
3
AUTO CAL

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Alcatel Vacuum Technology France - ASM 182 TD+ - ASM 192 T2D+ User’s Manual
Basic internal calibration of the leak
detector
Edition 03 - December 01
GB 00969 -
Calibration Connect the external calibrated leak.
preparation
4
F1
F3 F2
F4
PLEASE,OPEN He LEAK
LEAK VALUE:
1.0E-07
EXT Θ (°C/°F):20/68
OK -> press NEXT
F1
F3 F2
F4
ON TEST PORT!
Leak value: 1.0E
-07
EXT Θ (°C/°F):20/68
OK -> press NEXT
These 2 screens appear
alternately
Note: If the operator press ,all the parameter of the
calibrated leak programmed display.
Open the valve of the calibrated leak (if there
is one).
F2
F1
F3 F2
F4
PLEASE,OPEN He LEAK
LEAK VALUE:
1.0E-07
EXT Θ (°C/°F):20/68
OK -> press NEXT
F3
Set the ambiant temperature.
Adjust a value C 20
F1
F3 F2
F4
PLEASE,OPEN He LEAK
LEAK VALUE:
1.0E-07
EXT Q (°C/°F):20/68
OK -> press NEXT
F3
5Validate the auto-calibration process
Different screens appear during the process
giving internal parameters values.
NEXT

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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 -
When the auto-calibration is complete, the unit
is ready to start a cycle.
Note: it is possible to start a test cycle after an auto-
calibration failure.
F1
F3 F2
F4
READY FOR CYCLE
INLET ...
STDBY
F1
F3 F2
F4
PLEASE,OPEN He LEAK
OK -> press NEXT
F1
F3 F2
F4
ON TEST PORT!
OK -> press NEXT
These 2 screens appear
alternately
6End of the Close the valve of the calibrated leak (if there
process is one).
Validate the operation.
Note: If these operations are not been done in the minute
which follows the appearance of these screens, the auto-
calibration is automatically stopped. A message informs the
operator of this stop.
NEXT