Inficon 580-000, Original Operating Instructions

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INFICON Operation | 6
IRwin-Operating-instructions-mina66en1-15-(1904) 81 / 128
Once you have set the function test intervals, the leak detector will remind you to
perform the respective Function test, see "Setting the Function Test Interval [ } 48]".
Recommended
Function test intervals
(based on IRwin
model)
• Above ground: Before starting work (10 ppm CH
4
)
• Ex: Daily (2.2% CH
4
)
• Ex Tox: Daily (2.2% CH
4
, CO
2
, CO, O
2
, H
2
S)
You can use different calibration stations for the Function tests. However, the following
requirements have to be fulfilled.
• Best choice is to use On Demand Flow Regulators (ODFR) that opens
automatically when IRwin pulls gas delivers the exact amount required. If using a
conventional pressure regulator type, make sure gas flow through the calibration
station is higher than the gas flow of the leak detector.
• The gas must not be fed with over pressure into the leak detector. This is best
taken care of by using "ODFR" regulators.
ü To perform the Function test, you need fresh air and either 10 ppm CH
4
, 2.2 Vol%
CH
4
in synthetic air. For IRwin SXT and SXGT you will also need the ToxMix gas
mixture.
1
Check the leak detector for visible damage.
2
> > Function Test > Test (Tab)
3
Select the desired function test from the list.
4
Start the selected Function test by pressing .
ð
The leak detector guides you through the process.
You can display the date of the last function test.
► > > Function Test > Info (Tab)
This time is the basis for the next function test reminder. Refer to "Setting the Function
Test Interval [ } 48]".
Function tests expects factory default concentrations. Using other concentrations,
even if within the adjustable calibration concentration range, can make the automatic
function test interpretation invalid.
If you fail function test and you are using non-standard gases we recommend that you
test the instrument by simply exposing the respective mode for the test gas and
observe the reading. This way you can still verify the function but the last passed
function test will not be logged if automatic interpretation failed.
6.4 Measuring
ü Connect the leak detector to the desired probe. See "Function [ } 14]".
1 Switch on the leak detector by pressing the I/O key.