AMC-1222 CO/NO
2
Multidrop
20
MAINTENANCE
This section covers topics related to the maintenance of the AMC-1222 module. A general
description of maintenance to be carried out is followed by a verification of operation and then
details about the sensor replacement.
5.3 GENERAL
The sensor module should be brushed or wiped clean once a year or more, of any dust or dirt
which settles on it, depending on the accumulation. The module SHOULD NOT be submerged
or placed under conditions where water or other liquids would be able to enter the transmitter.
5.4 VERIFICATION OF OPERATION
Verification of operation and calibration should be done at least once every 6 months for safety
reasons and for highly demanding applications, monthly verification is recommended.
5.5 SENSOR REPLACEMENT
The sensor should be replaced when the sensor no longer adequately responds to test gas.
CAUTION:
Turn off the power supply before attempting the following.
When the sensor needs replacing, reorder the Part Number listed in section 2.1 SENSOR
MODULE (page 4). To replace the sensor element, remove the four screws and cover plate
from the housing. Unplug the used sensor element from its socket and discard then plug in the
replacement sensor element. Reinstall the cover plate and screws.
Note:
Allow 24 hours for the new sensor element to stabilize (burn-in) before recalibrations then
follow instructions in the Calibration section of this manual.
Summary of Contents for AMC-1222
Page 3: ...AMC 1222 CO NO2 Multidrop 2 NOTE This page intentionally left blank...
Page 5: ...AMC 1222 CO NO2 Multidrop 4 2 PRODUCT INFORMATION Figure 2 1 AMC 1222 Sensor Module...
Page 12: ...AMC 1222 CO NO2 Multidrop 11 Figure 4 1 Transmitter Mounting Dimensions...
Page 13: ...AMC 1222 CO NO2 Multidrop 12 Figure 4 2 Pole Mount...
Page 20: ...AMC 1222 CO NO2 Multidrop 19 Figure 5 2 Calibration Procedure for 1222 NO2...
