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PAGE 5 of 11
2) When the Monitor is turned on, press
for 3 seconds to turn off the unit.
When the unit is first turned on, it performs 5 seconds countdown for Monitor warm up, then enters
normal display with current CO2, temperature, and humidity readings displayed. The monitor starts
taking measurements when power on and updates readings every 2 seconds.
2. Temperature Units Switching Button
2.1 Temperature Unit
Press
shortly to switch two temperature units: °F and °C.
2.2 Menu Status
By pressing the temperature unit switching button
for
5
seconds, the unit enters into
Menu
status
. There are six menu items by pressing the temperature unit switching button
shortly to
loop switching between
AIR
,
N2
,
Hx.x
,
Lx.x
,
A ON/AOFF
,
SC
,
Px
,
Log
and
E
(exit). The menu
items are described in the following table.
Menu Items
Functional Description
AIR (“
”)
“AIR” means Ambient Air Calibration. User presses the power button
to implement
Ambient Air Calibration
(300~600ppm).
N2 (“
”)
“N2” means Nitrogen Calibration. User presses the power button
to
implement
Nitrogen Calibration
(0~200ppm).
H0.5/H0.5T/H1.
0/H1.5/H3.0
High Alarm Threshold
setup.
User presses the power button
to switch the high alarm threshold:
H0.5 (5000 ppm), H0.5T (5000 ppm TWA), H1.0 (10000 ppm), H1.5
(15000 ppm), and H3.0 (30000 ppm).
L0.5/L0.5T/L1.0
/L1.5/L3.0
Low Alarm Threshold
setup.
User presses the power button
to switch the low alarm threshold:
L0.5 (5000 ppm), L0.5T (5000 ppm TWA), L1.0 (10000 ppm), L1.5
(15000 ppm), and L3.0 (30000 ppm).
A ON/ AOFF
(“ ” /
“”)
Setting
Man down alarm
function on/off.
User presses the power button
to switch “A ON” (allowing Man
down alarm) or “AOFF” (prohibiting Man down alarm).
SC (“
”)
Real time clock
setup
User presses the power button
to enter the real time clock setup:
a. Press button
to switch the time items Year (“ ”), Month (“ ”),
Day (“
”), Hour (“ ”), Minute (“ ”), Second (“ ”) and “ ”.
