Inficon 580-000, Original Operating Instructions

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INFICON Operation | 6
IRwin-Operating-instructions-mina66en1-15-(1904) 49 / 128
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IRwin SXnn: You can set the time interval individually for the modes “Above
Ground“ / ”Universal (low range)", “Bar Hole” / ”Universal (high range)”, “Ex“,
“Tox Mix“ and “GC”.
3
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6.2.15 Calibration
The built-in calibration routines guide you through the adjustment of the leak detector
sensitivity to the various test gases. You can set calibration intervals for the different
adjustments and will then get a reminder when calibration is due ("Adjust calibration
reminder").
Allow IRwin to warm up for 1 hour before calibrating for best accuracy.
The calibration intervals for the operating modes Ex and Ex Tox are based on the TÜV
certificates for these operating modes. For the other modes these time intervals are
chosen to give you the best performance. Use the results of the various function tests
to judge whether a calibration is needed. If you want to perform more than one
calibration procedure at a given time you should run them in the following sequence
for best performance.
1. Above Ground or Universal (low range) if Universal mode is enabled
2. Ex CH
4
(IRwin SX, SXT, SXG and SXGT only)
3. Tox (IRwin SXT and SXGT only)
4. Bar Hole CH
4
or Universal (high range) if Universal mode is enabled
5. Bar Hole CO
2
or Universal (20% CO
2
) if Universal mode is enabled
Recommended
calibration intervals
• Above Ground CH
4
/ Universal (low range) - weekly
For calibration in Above Ground mode you need the following gas concentrations:
10 ppm CH
4
, 100 ppm CH
4
, 2.2% CH
4
.
With this calibration you calibrate the higher range (Vol%) of the modes House
and Bar Hole at the same time.
• Tox - weekly
For calibration in Ex Tox mode you need Tox mix.
The CO
2
calibration of other modes is not affected. CH
4
of the operation mode Ex
is also calibrated during the Ex Tox calibration. However, for best performance, it
is recommended to perform the Ex calibration after the Ex Tox calibration.
• Ex CH
4
- weekly
For calibration in Ex mode you need the following gas concentrations:
2.2% CH
4
.