ANALOX Ax60+ Multi-Gas, Руководство по обслуживанию

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Ax60+ Multi-Gas
Service Manual
Int. Approved
Document ref: P0159-803-11 September 2019 Page 27 of 62
Copyright © 2015 Analox Ltd. All Rights Reserved.
Commercial in Confidence
5.4.2 O
2
sensor span calibration
NOTE: THE SENSOR THAT IS BEING CALIBRATED IS AUTOMATICALLY DISABLED DURING
CALIBRATION. THE OTHER SENSORS CONTINUE TO OPERATE.
NOTE: CALIBRATION MODE AUTOMATICALLY TIMES OUT AFTER TEN MINUTES.
To span calibrate an O
2
Sensor, follow the procedure below (in both text and menu map):
1] Ensure the Ax60+ is powered on for a minimum of 24hrs and operating normally.
2] Press and hold Cycle for 6 seconds to display Top-level Menu.
3] Press Cycle four times to display Calibration. Press Accept/Test to display Zero cal.
4] Press Cycle to show Span cal. press Accept/Test to show the Select sensor screen, press Cycle
to select the Sensor you want to calibrate then press Accept/Test.
5] Press Cycle repeatedly to enter the span calibration value you want in 0.1% increments. or
press and hold Cycle to increment the value at 1.0% increments. To reset the value to 20.9%
and start again, repeatedly press Cycle until you exceed 25%.
6] Press Accept/Test to confirm the span calibration value (for example, 21%).
7] Fit the neoprene tubing (1817-5000) to the flow adaptor (8000-0910A).
8] Fit the flow adaptor into the aperture on the O2 Sensor.
9] Fit the regulator to the O2 span gas bottle.
10] Carefully open the regulator valve and allow the span gas to flow across the sensor for 1 to 2
minutes. Do not block the exit of the flow adaptor.
11] The O2 reading on the Span level screen will begin to increase. Wait for the reading to
stabilise at (or close to) 20.9%.
12] Press Accept/Test to confirm the calibration.
13] If span calibration is successful the Span msg sent screen is displayed.