Cleaning; Testing - Macurco OX-12 Instructions D'utilisation

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4. Press the Enter button again to see the sensor reset status. If the sensor life has already been reset, done "don" will be displayed.
If it has not already been reset, "no" will be displayed. Push Next to change it to "yES" (flashing) then push Enter to confirm the
change (solid) and push Enter again to return to "rSt" in the SEn menu. Push Next until "End" is displayed then push Enter to get
back to normal operation.
Note: If the sensor is reset and not replaced it is necessary to test and/or calibrate the sensor to assure that it is still performing within
acceptable specifications though the sensor is nearing the end of its 2-3 year expected life. There will be no other indication of sensor
performance.
Do not disassemble unit or attempt to repair or modify any component of this instrument. This instrument contains no user serviceable
parts, and substitution of components may adversely affect product performance and result in sickness or death.
CAUTION
Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently scratch the surfaces
and damage the display window, labels, sensor or instrument housing. High voltage terminals (100-240VAC) are located within this
detector, presenting a hazard to service technicians. Only qualified technicians should open the detector case and service the internal
circuits. Ensure power is removed from the detector prior to cleaning the unit. Failure to do so may result in sickness or death.

Cleaning

Cleaning of the external surfaces is best carried out using a damp cloth with a mild detergent or soap. Use a vacuum cleaner with soft
brush to remove dust or contamination under the cover. Do not blow out the sensor with compressed air.

TESTING

Using a certified gas with a concentration other than the one listed for this detector when conducting a calibration or calibration
verification test (bump test) will produce inaccurate readings. This means that critical levels of the gas being monitored may be present
and could result in overexposure and cause sickness or death. For proper use, see supervisor or User Instructions, or call Technical
Service at 1-877-367-7891.
General
All OX-12 units are factory calibrated and 100% tested for proper operation. During normal operation the green status indicator LED
light will be on steady, the fan & alarm relay will be in standby mode and the 4-20 mA output will be at 4mA (in clean air).The unit also
performs a regular automatic self-test during normal operation. If the unit detects an improper voltage or inoperable component, it will
default into Error mode. In this error mode, the Alarm relay will be activated, the 4-20 mA current loop will go to 24 mA, the unit will
display the error code, the green status indicator LED light will flash and the buzzer will chirp intermittently. The Fan relay will also
engage if the Trouble Fan Setting Option is set to "On".
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WARNING
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WARNING
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