Pfeiffer Vacuum ASM 310 - Calibration function; Start-up time delay

Access: Menu [Test] [Calibration check]
Choice - Setting limit
1)
Check To be selected
● Operator: calibration check not enabled
● Automatic: calibration check enabled
Operator
Automatic
Frequency Every cycle To be set
Set point (cycles) initiating calibration check
Calibration check begins when either the ‘Cycles’ or the ‘Time’ set
point is reached.
0 – 9999
Every hour To be set
Set point (time) initiating calibration check
Calibration check begins when either the ‘Cycles’ or the ‘Time’ set
point is reached.
00'00'' – 59'59''
1) Initial setting: see chapter “Tree diagram to the Settings menu”
Calibration check can be launched when the detector is in ‘Stand-by’ mode using one of 2 methods.
Calibration type assigned to the CAL button
(see chapter “Calibration type”)
Method
Calibration check Press once on the CAL button.
Internal calibration
External calibration
Press twice on the CAL button in under 5 seconds.
To stop a calibration check, press the CAL button 3 times in under 5 seconds.
8.2.11 Calibration function
Calibration is used to check that the leak detector is correctly adjusted to detect the tracer gas selected
and display the correct leak rate (see chapter “Calibration”).
Access: Menu [Test] [Calibration] Choice - Set-
ting limit
1)
To be selected
● Start-up
Calibration starts automatically when the detector is switched on.
● Operator
Calibration initiated by the user by pressing the CAL button.
You are advised to wait 20 minutes after switching on the detector before starting a calibration. An
information message is displayed if a calibration if launched before these 20 minutes are up.
● Check at start
Depending on its settings, a calibration check is launched automatically when the detector is
switched on, or it can be launched manually by the operator (see chapter “Calibration check”).
Start-up
Operator
Check at start
1) Initial setting: see chapter “Tree diagram to the Settings menu”
8.2.12 Start-up time delay
The start-up timer prevents the leak detector from being used for a pre-determined duration after it has
been switched on.
No measurements can be made if the leak detector is not thermally stabilized, or while traces of tracer
gas remain in the detector.
Settings menu
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