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SERIES 3000 MKIII TECHNICAL MANUAL
17. Use '▲▼' to select 'YES' if the sensor cell has been replaced or 'No' if it has not been replaced.
• Answer Yes to "CELL/rEPL" ONLY in cases where the "Serviceable Sensor Cell Replacement" procedure
(sec. 15.2) was been performed. Answering Yes in cases where the cell has not been replaced could result
in the inability of the Series 3000 to recognize an old cell with an inadequate output.
• It is recommended to bump test the sensors frequently to ensure proper operation.
18. If the sensor cell has been replaced use '' to confirm the gas reading.
19. If the span calibration is successful the instrument will briefly display 'SPAn PASS' (if fails 'SPAN
FAIL' displayed and returns to menu mode).
Note: the calibration due warning counter is reset after a successful calibration. See section 12 for
further details of setting a calibration due warning.
20. The display alternates between "Pur GAS" and the gas reading to indicate that the unit is expecting
the span gas to be removed from the sensor.
21. Promptly switch off the calibration span gas and remove the calibration gas flow housing from the
sensor to allow the gas to disperse.
22. When the reading falls below 50% of the calibration gas level the display indicates a countdown
(up to 180 seconds dependant on gas type).
23. When the countdown is finished, the calibration procedure is complete.
24. The instrument returns to the 'SEt CAL' menu. Activate the '▲' or '▼' switch to select another menu
or select 'QuIT' to return to normal monitoring mode.
Display in turn
Display in turn
Display in turn
Display in turn
Display in turn
WARNINGS
21
MAN0917_Issue 6_08/2015
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