CMS-1 CARBON MONOXIDE MONITOR
Page 14
© 2017 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 23301, Rev. F
8.2.5
Inspect purple restrictor orifice for blockage;
orifice is extremely small .004". Replace the orifice if it is
blocked.
Tubing coming loose can be the result of
supplying the instrument with pressure much
higher than operating pressure. Refer to
Section 2.3.1. If this type of failure occurs, the
maintenance service technician should inspect
the instrument as soon as possible.
8.3
No annunciator lights or alarms. This
condition indicates a loss of electrical power, as it is
unlikely that audible and visual alarms will fail at the
same time.
8.3.1
Make sure the electrical power cord is
connected to the appropriate power source.
8.3.2
Make sure the fuse, located in the case, is not
blown.
8.3.3
Make sure that the power supply is ON.
8.3.4
For 12-volt system, make sure the battery is fully
charged and that the charging system is operational.
Make sure the positive and negative terminals are
connected correctly.
8.3.5
Check for faulty power supply, or loose plug
connection on circuit board.
8.4
Either alarm-lights or alarm horn fails.
8.4.1
Check for loose plug connections on circuit
board.
8.4.2
To test the alarm, remove the plug connection
on the circuit board from the suspect alarm, and apply
external 12-volt power to the alarm plug. If the alarm
fails to activate, replace the alarm.
8.4.3
To test the circuit board, remove the plug
connection from the faulty alarm. Use a voltmeter to
check voltage across circuit board pins. When testing an
alarm horn, switch the Run/Calibration Switch to the
"CAL" (calibration) position. This will cause an
intermittent alarm, and should register on the voltmeter
each time the alarm activates. A monitor with faulty
circuit board should be returned for service.
