Cleaning; Testing - Macurco CD-12 User Instructions

expected life. The silence function will continue to be available for 29 days after the CD-12 initiates the initial end-of-life signal. After this
29 day period the CD-12 can no longer be silenced and the sensor must be calibrated and the sensor life reset or the CD-12 detector
replaced.
Sensor Life Reset
1. Remove the Philips screw on the front of the CD-12. Pull the front cover of the unit off.
2. To reset the sensor life (rSt), from normal or warm-up mode, press the Next button four times to get to "SEn" or Sensor Mode.
3. Then press the Enter button to get to "rSt" - Reset Sensor Mode.
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. The sensor life will be reset for 1 year.
NOTE: If the sensor is reset and the detector not replaced, it is necessary to test the sensor to assure that it is still performing within
acceptable specifications though the sensor is nearing the end of its 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 impair intrinsic safety, which 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 verification test (bump
test) will produce inaccurate readings. This means that higher 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.
! WARNING
! WARNING
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