Calibrating
In order to be able to measure leak rates correctly, the leak detector has to be adjusted at regular intervals by calibration. The mass spectrometer is adjusted automatically.
You can perform the calibration using the device internal calibration leak or using an external calibration leak. Normally, calibration should take place on a daily basis or if there is some doubt as to the measurement ability of the device.
When using hydrogen or helium-3 (3He) as tracer gas an internal calibration is not possible. In this case, use an external calibration leak.
The operation modes "Vacuum" and "Sniffing" must be separately calibrated when using an external calibration.
A calibration should only take place when the device is at operating temperature. Calibrate at least 20 minutes after switch-on.
