Inficon SEN.122.162, Руководство по эксплуатации

Страница: 31 / 80

INFICON Operating the Instrument | 9
Sensistor_Sentrac_Strix_Operating_Manual_ninb65en1-01-(2010) 31 / 80
2. Set up a calibration leak which corresponds to the smallest leak you want to
detect. For more information see Calibration.
3. Put the probe close to the calibration leak and note the approximate reaction you
get (no reaction, small, medium, high, full scale) within the first few seconds.
4. Click the Sensitivity icon on the Operation Screen and set the Sensitivity.
9.3.2 How to Detect Leaks
1. Move the probe tip close to and along the pressurized test object. A small leak can
be more precisely located by moving the probe over the leak again.
2. Remove the probe promptly when a tone sounds. That indicates the detection/
location of a leak.
NOTICE
It is good practice to detect a leak, locate it, and then immediately remove the probe to
avoid saturation. The probe is not damaged by long time exposure, but it will recover
more slowly. After excessive exposure, the probe will be less sensitive for a short
period of time.
Red fixed light together with Reject on the display means the instrument has detected
a leak larger than the set reject level limit.
Large leaks may trigger the probe to react directly when approaching the test object. If
the signal goes off the scale, simply reduce the sensitivity setting to bring the signal
back onto the scale. Using the sensitivity setting in this way, you will be able to locate
multiple leaks that are in close proximity to each other.
9.3.3 How to Measure Leaks
In Measuring Mode, the measured value is displayed in figures.
Measuring Mode
cc/s Air
1. Calibrate the probe.
See Calibration.
2. Click the measuring Mode icon on the Operation Screen.