Maintenance; Testing - 3M Macurco Directives D'utilisation

MAINTENANCE

Do not disassemble unit or attempt to repair or modify any component of this detector. This detector contains no
user serviceable parts, and substitution of components may adversely affect product performance and result in
sickness or death.
The CM-E1 has a highly linear electrochemical sensor. The CM-E1 has an expiry function associated with the production
date which will cause the unit to go into a Trouble Fault when the sensor has expired. All maintenance and repair of
products manufactured by 3M™ Macurco™ are to be performed at the 3M Macurco Service Center. 3M Marcuro does not
sanction any third-party repair facilities.

Testing

The CM-E1 should be tested monthly by pushing the TEST/RESET switch; see TEST/RESET switch, above. Normally this will
be the only test required for the CM-E1 and is the recommended way to test the unit or units after installation. All CM-E1
units are factory calibrated and 100% tested for proper operation. The unit also has the ability to automatically self test and
does so every 2 1/2 minute cycle. If the unit detects an improper voltage or inoperable component it will default into Trouble
mode. See TROUBLE INDICATOR above. Check that the CM-E1 status indicator light is illuminated, (GREEN) continuously. If
not, do not proceed with the tests. Though there is no field calibration procedure for this unit, there is an optional field test
procedure.
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WARNING