Inficon SEN.122.162, Руководство по эксплуатации

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INFICON Operating the Instrument | 9
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2. Move the Hand Probe close to and along the pressurized test object. Move the
probe on the possible places where there may be leaks.
3. When a leak is found and the highest signal is found, move the probe away from
the leak and back again for verification.
9.5 To Quantify Leaks
The Measuring Mode is used for measuring the size of a leak (or the concentration of
a gas sample). To be able to do this measurement and obtain correct values, the
instrument must first be calibrated using the calibration function.
In the Measuring Mode, the instrument determines the gas concentration from the
change, as the probe goes from being exposed to background to being exposed to a
certain gas concentration. The instrument does not continuously monitor the gas
concentration but takes just one reading. Another suitable alternative name for this
mode could be Sampling Mode. It is important to keep this in mind when using the
instrument in this mode.
In Measuring Mode the probe should be moved directly from a background situation to
the test point. The size of the leak in ppm, or any other selected units, is shown on the
display. The probe can and should be removed from the measuring point as the
measured value stabilizes and remains on the display. The period during which the
measured value is displayed can be adjusted in the Settings menu.
The instrument operates in the range 0.1 - 1000 ppm H
2
. To obtain greatest accuracy,
follow the calibration recommendation. See Calibration.
9.6 I•Guide
The I•Guide sums several measuring results. A fixed or moving number of
measurements with a maximum 25 measurement points can be chosen. The
instrument must be in Measuring Mode or Combined Mode for this function to be
active. Toggle the Mode function for Hand Probe.
Combined Mode
cc/s Air
Press button for pos 1 of 4