CMS-4 IN-HELMET CARBON MONOXIDE MONITOR
Page 20
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 29872
5.7.14
Close the connector slide valve by sliding it to
the CLOSE position, toward the test gas cylinder.
5.7.15
Remove the calibration cup by gently prying the
retaining clips off the monitor while lifting up on the cup.
Refer to Section 5.5 for additional information on
removing the calibration cup.
5.7.16
Press AIR once (1 beep) to scroll to
ESCAPE
.
5.7.17
Press and release POWER MODE to return to
User Mode. Check to see if the monitor returns to
Measuring Mode if no buttons are pushed after 20
seconds.
5.7.18
Press and release AIR 13 times (13 beeps) to
scroll to
START
.
5.7.19
Press POWER/MODE once to start the warm-up
sequence and return to Measuring Mode.
5.7.20
The calibration is complete.
5.7.21
Refer to Section 5.8 for information on storing
the calibration kit and test gas.
5.8
Storing the Calibration Kit and Test Gas
5.8.1
Remove the calibration cup from the monitor,
per Section 5.5.
5.8.2
Unscrew the calibration connector with slide
valve from the test gas cylinder. The test gas cylinder
has a positive seal, whereas the calibration-connector
valve does not. If the connector is not removed from the
test gas cylinder, over time the cylinder will empty.
5.8.3
Place the calibration kit and test gas in a plastic
bag or other sealed container, and store it in a clean, dry
place.
6.0
MAINTENANCE
WARNING
Regularly scheduled calibration and
maintenance is essential for proper operation
and accurate readings of the monitor.
Maintenance should be performed by personnel
properly trained for this work. Improper service
could result in malfunction and loss of life.
NOTE: There are no serviceable parts within the
CMS-4 case. Do not remove the four screws holding
the upper and lower case together or try to separate
the case.
6.1
Replacing the Lithium Battery ‒ Figures 27
and 28
The battery icon has three bars visible when the battery
has full power. As the battery charge decreases, the
bars disappear. Obtain a replacement CR2450 3V
Lithium coin battery when there is one bar remaining on
the battery icon. Replace the battery when the lowest
battery level indication bar disappears and the battery
icon begins to flash, indicating that the monitor is in low
battery warning
6.1.1
Make sure the monitor is turned OFF.
6.1.2
From the back of the monitor, pry the mounting
clip off the spring pin and swing it away from the battery
cover, as shown in Figure 27.
6.1.3
Use a small Phillips screwdriver to unscrew the
battery cover’s screw and swing the cover away from the
monitor to remove it.
Figure 27
6.1.4
Carefully remove the old battery.
6.1.5
Carefully install the new battery, noting the
polarity indications on the underside of the battery cover
and in the battery compartment. The negative (-) side of
the battery goes into the monitor, as shown in Figure 28.
6.1.6
Reinstall the battery cover and screw.
NOTE:
If the instrument has been without a battery for
more than 5 minutes, the date and time are reset and
need to be set again. When the new battery is installed,
the instrument will turn on automatically and will display
Battery Cover
Shown shaded.
Cover Screw
Mounting Clip
Spring Pin
