Sensor Life Reset; Cleaning; Testing - Macurco CD-6G Operation Manual

Macurco CD-6G Operation Manual

6.1 Sensor Life Reset

The Sensor Life can be extended only by 1 year, so the sensor life reset option is not available once the extended 1 year is over.
After resetting the sensor life, the unit will still indicate a "t 80" error and will need to be calibrated before it can be used for the
extended 1-year life.
To reset the sensor life,
Remove the Philips screw on the front of the CD-6G. Pull the front cover of the unit off.
From normal mode, press NEXT four times. The display will show "SEn" or Sensor Mode.
Press ENTER. The display will show "rSt" or Reset Sensor Mode.
Press ENTER to see the sensor reset status.
If the sensor life has already been reset, "don" will be displayed. If it has not been reset, "no" will be displayed. Press
NEXT to change it to "YES" (flashing).
Press ENTER to confirm the change (solid) and press ENTER again to return to "rSt" in the "SEn" menu.
Press NEXT until "End" is displayed then press ENTER to get back to normal operation. The sensor life will be reset for 1
year.

6.2 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 a soft brush to remove dust or contamination under the cover. Do not blow out the sensor with compressed air.
C AUTION
4 2 T
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.

6.3 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.
For proper use, see supervisor or User manual, or contact Technical Support at 1-844-325-3050.
All CD-6G 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 corresponding to the gas
reading of the detector. Refer to figure
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".
REV – 1.0
WARNING
3 -1 4-20mA Output diagram
3 1 T 3 1 T
[34-2900-0510-9 ]
or figure 3 -9 4-20 mA Output diagram
3 1 T
, for expected value.
3 1 T
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