Macurco CD-6H Manuel D'instructions page 29

Macurco CD-xx H/MC Manual
14. If the calibration fails, the display will show "CAL6" for 1 second and then change to "Fail.3" for 30 seconds before
changing back to CAL for 30 seconds and then displays "t00/t020"
N ote:
this Trouble code will only be cleared by a successful calibration of the sensor.
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If this occurs, check the pressure gauge on the regulator. If the pressure is less than 25 psi the flow of gas may not be
adequate to properly calibrate the unit. If there is proper pressure in the cylinder repeat steps 5 through 12. If the unit
fails to calibrate twice contact Technical Support: 1-844-325-3050.
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It is critical to confirm to use 400 ppm CO
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15. Once the calibration has passed, remove gas and disassemble the cylinder and regulator.
16. Re-assemble the CD-6MC (make sure the LED is aligned with the front case hole).
17. See Calibration Flowchart on the inside of the housing, or section
REV – 1.2
gas calibration be used.
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9 .5 CAL Menu
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[34-2900-0510-8]
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