6 | Operation LINXON
64 / 90 LX218-Operating-Manual-en1-04-(1908)
The usual calibration factor value CF for 4He is 0.1 … 10. If you
• accept the result, press "Save" to save the new calibration values
• do not accept the result, press "Cancel" to leave the old values in place.
If the common values cannot be reached despite multiple attempts, please
contact your nearest Linxon Service Center.
6.9 Check internal calibration leak
Standby > Calibration > Check internal calibration leak
This function is only available for the "Vacuum" operation mode with mass 4. After the
device has started up, the display goes into the "Standby" operation mode.
Pressing the "Check internal calibration leak" button leads to the submenu:
1. The inlet flange must be blind-flanged! Confirm with "Yes".
2. Confirming the START button leads to evacuation and the beginning of the
calibration leak measurement.
In addition to the display of the measured calibration leak value, the display also
shows the default value for the internal test leak: for example, TL: 8.6E-07 mbar l/s.
In all cases, the "Cancel" button leads back to the "Ready" menu.
NOTICE
Matching the measured value of the internal calibration leak with the standard
value of the internal calibration leak does not confirm the absolute accuracy of
the measurement system if an internal calibration leak was used to calibrate
the leak detector.
The display for the internal test leak may only be used as a reference! Accurate
measurements require calibration with an external calibration leak.
6.10 Switching off the device
You can switch off the device with the power supply switch at any time. The
parameters set in the device remain saved.
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