CO230-en-GB_v1.0 1/16
4
Keypad Description
SET
Meter ON/OFF power
Setup mode
Save settings
CAL/ESC
CO
2
calibration with
▲
/DP WB
RH calibration with
MXN/AVG/
▼
Exit setup mode
RESET
Reset the meter and clear MAX/MIN readings
Terminate Calibration
▲
/DP WB
Selects AIR, DP, or WBT temperature display
Selects units or increases value in calibration and setup
MXN/AVG/
▼
Activates MIN, MAX, STEL, TWA functions
Select mode or decrease value in calibration and setup
Operation
POWER ON/OFF
The meter is powered by a 12VDC adaptor.
Power the unit by plugging the AC adaptor into the meter and into an
AC source. The meter will switch ON with a short beep.
The LCD will perform a 30 second countdown and then displays the
current CO
2
concentration, air temperature, and relative humidity.