INFICON Ecotec E3000 Multigas-Sniffer-Leak Detector - Manual (Page 31)

6 Operation
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The factory setting with black font on light background can be inverted. This causes the
display to emit less light overall.
Peak hold You can set if and how long the highest measured value is to be displayed additionally
below the current leak rate.
Setting range: 0 to 20 seconds.
Fig. 16: Measurement view with maximum value display
a Maximum value
6.3.3.1 Gas display handle
In the menu “Settings > Display > Gas display handle” you can define which gas is shown
in the display in the sniffer handle.
Automatic The display always shows the gas that the most of is measured currently. If a trigger value
is exceeded, this gas will be displayed.
Manual You can switch between gases with the right key on the handle.
Auto with hold You can switch to another gas with the right key on the handle. After the hold time has
elapsed, the display again shows the gas that the most of is measured currently.
Hold time The hold time can be set to 5, 10, 15, or 20 seconds.
6.3.4 Vacuum & access control
Zero The gas concentration contained in the measurement environment can be set as zero
point for measurement (background suppression). The function has the brief name “Zero”.
If the gas concentration drips after setting the zero point, a negative measured value
should be displayed. In order to avoid that, the zero point is revised downward if the
measured value is negative for the duration of the “Zero time”, see below.
The zero point is not automatically revised up (wards). It is therefore important to regularly
reset the zero point.
The zero point can be set with the left key on the handle and with the key “Zero” in the
measurement view.
You can activate or deactivate the keys here in this menu. Deactivation prevents that the
function is triggered inadvertently and that an incorrect absolute measured value is thus
displayed.
a