INFICON Sensistor ILS500 Leak Detection System - Manual (Page 61)

Calibration 61
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3 Replace it with Tracer Gas.
4 Attach it to the leak.
10.3.2 Calibrate the Probe
Hand Probe
1 Expose the probe to the background air.
2 Press cal. button on ISH2000.
3 Press Start Button or push Probe Button.
4 Expose the Probe to the Calibration Leak or Calibration Gas.
5 Wait while the Calibration Time bar is moving.
6 Remove the Probe when the display shows Detecting Gas and gives a sound signal.
7 Save, or repeat the calibration routine until you can save the calibration.
Active Probe
1 If manual start, click on the Calibration symbol.
2 Click Calibrate button.
3 Wait, or abort the calibration by clicking the Abort button.
4 The result of the test will be shown on the screen.
Notice Wait at least 30 seconds between each calibration.
If the calibration is not saved, the instrument will revert to the previous
value after one minute.
When changing setup or probe you will need to repeat the calibration 2-3
times to get Calibration OK.