Alcatel ASM 180 TD User Manual page 64

Audio alarm
(90 dB)
Display the alarm
setpoint by
pressing
Set the audio
alarm setpoint
Adjust the audio
volume
4/5
Detector operation
The audio alarm is triggered when
the leak rate is greater than the
reject setpoint.
The frequency of the audio signal
depends on the leak rate
measured by the unit (the higher the rate,
the higher the signal frequency).
The threshold is then shown on the
measurement displays (Gross leak or
Fine leak depending on the test
mode used)
Adjust the setpoint using a
screwdriver to turn the
potentiometer.
Release the key.
Adjust the audio signal volume with the Audio section knob.
When this knob is at the minimum position ("0" position),
the audio signal is cut off.
Alcatel - High Vacuum Technology - ASM 180 TD/TD+ - ASM 181 TD+ User's Manual
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AUDIO