Inficon 580-000, Оригинальная инструкция по эксплуатации

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INFICON Operation | 6
IRwin-Operating-instructions-mina66en1-15-(1904) 71 / 128
5 Unit of the measured value 6 Zeroing button, if needed. Zeroing
symbol disappears if gas is
detected.
±Measurement range
Measurement range 1 - 100 %LEL methane
You can readjust the zero point of the %LEL value if needed. This can be done if
deviation is within ± 5 %LEL. Press lower left button if "0" appears in blue.
Deviation outside ± 5 %LEL is an indication that the system needs to be calibrated.
If required, change the primary target gas from methane (CH
4
) to propane (C
3
H
8
) or
butane (C
4
H
10
). The leak detector will then recalculate the signals to propane or
butane values using a certified correlation curve.
Use this feature if you need to work on LPG installations.
For changing gas type see "Change gas type for %LEL measurement [
}
75]".
Status LED
Keep an eye on the status LED when working in either of the safety certified modes
Ex or Ex Tox. The LED is green when the leak detector works properly and no gas
alarm is activated.
Listen also for the acoustic “alive signal” that beeps every 20 s to indicate normal
operation if there are no gas alarms.
The status LED changes to red when a gas alarm is triggered or an error exists.
Status LED is yellow in special states such as when in setting menus or calibration
etc. Blue status LED means normal operation in all other modes.
WARNING
Explosion risk may exist when "alive" signal not present.
When operating in any of the two safety related modes Ex and Ex Tox respectively,
the leak detector will confirm its proper function with a short acoustic "alive" signal
every 20 s and by the status LED being green.
► Leave hazardous areas immediately if the alive signal does not sound every 20 s.
► Do not use the leak detector until it operates normally again.