MST 80367 User manual

80367
Oxygen (O2) Sensor
MONITOR DETECTOR ASSEMBLY
WIRING CODE
CARBON MONOXIDE DETECTOR OXYGEN DETECTOR
MONITOR’S MONITOR’S
WIRE COLOR DETECTOR TERMINAL WIRE WIRE COLOR DETECTOR TERMINAL WIRE
Black C (CNTR) White + WHITE
Blue R (REF) Gray - RED
Red W (SENSING)
NEW O2 REPLACEMENT SENSORS
After connecting oxygen sensor to monitor, place
electrical tape around connector and carefully place
inside monitor to assure it does not interfere with
any other electronic components. It may be
necessary to lightly crimp monitor’s connectors to
assure secure connections.
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A. Detector
If the zero or span adjustments cannot be made within the range of their respective
potentiometers the detector needs to be replaced. To replace detector(s):
1. Remove the #10-32 thumb screws at right side of housing and remove detector’s
latched holder. Pull holder out as far as wiring will allow.
2. Pull wire connectors off of tangs on the detector noting the color coding. Note:
Detectors will pull out of holder with fingers.
3. Discard old detector and attach wires to new detector as noted in wiring code. If
new CO detector was shipped with a shorting clip between the sensing and
reference terminals, remove and discard clip before connecting the detector.
4. Allow at least one hour for stabilization then calibrate according to the instructions
supplied with your calibration kit.
B. Replacement Problems
If problems occur in replacing the above items or in calibration, consult the factory @
1-800-542-6646.
C. Other Components
Other components are not field replaceable without unsoldering. If repair is required,
the entire instrument should be returned to factory.
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