INFICON Ecotec E3000 Multigas-Sniffer-Leak Detector - Manual (Page 43)

6 Operation
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Fig. 30: Settings for a user-defined gas
You can switch between settings with the arrow keys and open a settings window by
pressing the “change” key.
User library no. Shows the number of the gas definition to be edited currently.
Name You have to enter a name for the gas to be defined.
The buttons are assigned with letters and you can assign names with six characters with
them. Once you have entered the sixth character, you can leave the window by selecting
“OK”.
Massposition The mass determines the position of the peak at which the user-defined gas is measured.
The Ecotec E3000 can verify masses from 2 to 200 amu.
The buttons are with assigned with numbers and you can enter masses between 2 and
200.
Normalisation factor The standard factor is used to convert the current supplied by the sensor into a leak rate
signal. If you are setting a user-defined gas, the Ecotec E3000 should subsequently be
calibrated with an external test leak, if possible. If calibration is successful, you will not
modify the standard factor. If calibration fails and the error message “Calibration factor too
high” is displayed, the standard factor must be reduced by decade, e.g. from 1.0E+08 to
1.0E+07. If the error message “Calibration factor too low” is displayed, increase the
standard factor by a decade, e.g. from 1.0E+08 to 1.0E+09. Repeat this process until Ecotec
E3000 calibration is completed successfully.
Molecule mass Enter the molecular mass of the gas to be measured with the arrow keys (usually included
in the data sheet for the gas).
6.4.6 Measuring
Electric shock hazard
Electrical voltages can be transmitted via sniffer tip and can cause damage to property
or personal injury.
► Do not touch live parts with the sniffer probe.
► Disconnect electrically operated test objects from the mains before starting the leak
test and secure them against being restarted without authorization.