INFICON Operation | 6
Ecotec E3000-Operating-instructions-kina22en1-28-(2211) 49 / 104
5. Confirm the calibration with “OK.”
6.4.5 Setting Custom Gas
You can save the settings for six individual gases.
► In the main menu, select “Measuring parameters > Gas def.,” then an entry and
“Change.”
Fig.30: Settings for a user-defined gas
You can switch between settings with the arrow buttons and open a settings window
by pressing the “change” button.
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.”
Measuring mass The mass determines the position of the peak at which the user-defined gas is
measured. The Ecotec E3000 can detect masses from 2 to 200amu.
The buttons are with assigned with numbers and you can enter masses between 2
and 200.
Standard 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 and 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 “Calibration factor too small”
error message appears, increase the standard factor by a decade, e.g. from 1.0E+08
to 1.0E+09. Repeat this process until the Ecotec E3000 has been calibrated
successfully.
Molecular mass Enter the molecular mass of the gas to be measured with the arrow buttons (usually
included in the data sheet for the gas).
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