ANALOX Sub Mk III F, Руководство пользователя

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Sub MkIIIF
User Manual
Int. Approved
Document ref: ASF3-800-08 November 2018 Page 65 of 79
Copyright © 2009 Analox Ltd. All Rights Reserved.
Commercial in Confidence
10.4 Oxygen Sensor Calibration
Hyperbaric oxygen sensors are usually ranged over 0 to 1500mBar pO2. Typically the sensor
should be calibrated using air and pure oxygen, or alternatively nitrogen and pure oxygen.
Hypobaric oxygen sensors are usually ranged over 0 to 600mBar pO2. Typically the sensor should
be calibrated using nitrogen and air.
1 Fit the supplied calibration adaptors to the sensor inlets and pass calibration gas of a
certified concentration (typically calibrated air 20.9% or pure nitrogen, or pure helium)
across the sensors at a flow rate of approximately 20-60 litres per hour (0.3-1.0 litres
per minute)
2 Wait for the sensor reading to stabilise
3 From the MAIN menu press CALIB, REM1, O2, CAL-L and adjust the gas concentration
to the desired value (eg 0.0 for nitrogen, or 20.9% for air etc)
4 Press SET to inform the remote sensor of the calibration gas value.
5 Now confirm the action by pressing YES
6
Observe after a few seconds that the oxygen reading adjusts to the new calibration
value (taking the absolute pressure into account
7 Now pass a higher concentration certified calibration gas (typically 100% O2 for
hyperbaric systems or 21% O2 for hypobaric systems) across the sensors at a flow rate
of approximately 20-60 litres per hour (0.3-1.0 litres per minute)
8 Wait for the sensor reading to stabilise
9 From the MAIN menu press CALIB, REM1, O2, CAL-H and adjust the gas concentration
to the desired value (eg 100.0 % or as appropriate)
10 Press SET to inform the remote sensor of the calibration gas value.
11 Now confirm the action by pressing YES
12 Observe after a few seconds that the oxygen reading adjusts to the new calibration
value (taking the absolute pressure into account)
13 Remove the calibration flow adaptors after use and confirm that the sensor readings
are sensible for the atmosphere in which they are exposed.