2-56. CARBON MONOXIDE MONITOR. This task covers:
Tools, see TM 10-4610-232-12, Appx B.
Sec Ill, Ref Code (No.)
Power supplied to CO monitor.
Tool Kit, General Mechanics Automotive (1)
Calibration Kit, CO Monitor (17)
General Safety Instructions:
Gaskets (TM 10-4610-232-24P)
Lockwashers (TM 10-4610-232-24P)
Preformed Packing (TM 10-4610-232-24P)
Washers (TM 10-4610-232-24P)
Observe specific Warnings in text.
Inhalation of carbon monoxide can cause serious illness or death.
a. Turn the screw (1, Figure 2-61, sheet 1 ) 1 /4 turn clockwise and open the door.
b. Turn the power switch (2) momentarily to off, then on. Verify that the display (3) momentarily lights and display
8.8.8 and the ALARM 2 indicator (4) and the SYSTEM OK indicator (5) momentarily light.
c. If, after performing the above display test, the green SYSTEM OK indicator (5) goes out and the main display (3)
reads P-1 or P-2, refer to adjusting procedure below.
d. If the audible alarm goes on, press the alarm reset button (6) located on the bottom of the case.
e. Press the ALARM 1 button (7). The main display (3) should read 25. If display does not read 25, refer to adjusting
f. Push ALARM 2 button (8). The main display (3) should read 50. If display does not read 50, refer to the following
adjusting procedure below.
Install sensor zero cap (9) into the sensor (1O) inlet.
Wait approximately 1-1/2 minutes or until a stable reading is displayed.
Pot turns clockwise to increase reading.
Adjust the zero pot (11 ) for a reading of O on the main display (3).
Remove the zero cap (9) and install the calibration adapter (12).
Attach flow control (13) to calibration gas tank.
f. Attach tubing (14) to calibration adapter (12) and flow control (13).