CMS-4 IN-HELMET CARBON MONOXIDE MONITOR
Page 14
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 29872
4.3.5 Displaying the PEAK Screen
4.3.5.1
The PEAK screen displays the highest CO
concentration detected since the CMS-4 was turned ON.
The PEAK reading is stored until a higher level is
detected, the PEAK reading is cleared, or the CMS-4 is
turned OFF.
4.3.5.2
PEAK readings are automatically cleared when
the monitor is turned OFF or cleared (as noted beginning
with Paragraph 4.3.5.3), and restarted when the monitor
is turned ON.
4.3.5.3
Make sure the monitor is in Display Mode, as
noted in Section 4.3.1.
4.3.5.4
Press and release POWER/MODE until PEAK
appears in the lower-left corner of the LCD screen, as
shown in Figure 16.
Figure 16
4.3.5.5
To clear the peak reading, do the following while
remaining in Display Mode:
1. While PEAK appears on the screen, press Air
and hold (as shown in the left image in Figure
17), and release it when prompted (as shown in
right image).
2. The peak reading will be reset and the display
will return to the Peak Screen.
3. After 20 seconds, the monitor will return to
Measuring Mode.
Figure 17
4.3.6 Displaying the STEL Screen ‒ Figure 18
4.3.6.1
The STEL Screen displays the short-term
exposure limit (STEL) reading. The STEL reading is the
average reading over the last 15 minutes.
There are no
changes or resets on the STEL menu.
Figure 18
4.3.7 Displaying the TWA Screen
4.3.7.1
The TWA Screen displays the time-weighted
average (TWA) reading. The TWA reading is the
average reading over the last 8 hours. If 8 hours have
not elapsed since the last time the TWA reading was
cleared, the average is still calculated over 8 hours. The
missing readings are assigned a value of 0.
4.3.8
TWA readings are automatically cleared when
the monitor is turned OFF and begins collecting new
TWA readings when the monitor is turned ON.
4.4
MAINTENANCE MODE
NOTE: Maintenance Mode Changes settings that
operationally affect the instrument.
WARNING
Maintenance Mode settings affect the operation
of the monitor and should only be cautiously
changed. Changing settings on an impulse can
lead to false or no alarms, resulting in carbon
monoxide poisoning, death, or serious injury.
4.4.1
Return to Factory Default Settings:
The only
function we advise using in Maintenance Mode is to
default to factory settings when menu items have been
unintentionally changed. These changes are identified
when menu items on the screen do not match menu
items in the instructions.
RELEASE
CLR
HOLD
CLR
15
PEAK
ppm
CO
The number shown in the
illustration is for reference
only. The number shown
on the LCD screen will be
the actual peak reading.
The number shown in
the illustration is for
reference only. The
number shown on the
LCD screen will be the
average STEL reading
over the last 15 minutes.
CO
0
STEL
ppm
