Inficon Ecotec E3000, Technical Handbook

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General Information
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Service menu
Comprises the menu lines in the “Service” sub-menu. The service menu is accessed
by scrolling in the basic menu using the navigation push-buttons (see also Section
3.2 ).
Autozero
Determination and compensation of the refrigerant background. With this function,
the internal ZERO level of the leak rate signal is determined in order to avoid a
readout of the internal refrigerant background and mistaking it as a properly
measured value. If subsequently negative leak rates are obtained due to this
correction, the stored offset values are changed so that ZERO will be the lowest
value which can be obtained. In this way the values adapt automatically to a
decaying background (adaptive background correction).
Internal background
The existing partial pressure in the measurement system. The level of the internal
background is measured all the time and subtracted from the measured signal.
I•Guide Mode
In the I•Guide Mode different testing plans can be pre-programmed. During testing
the operator is then constantly prompted for the next action and thus guided through
the testing plan.
Unit under test
Test object that needs to be leak checked.
Display limit
Limits the measurement data displayed depending on the unit of measurement and
the operator settings.