頁面 4, Keypad, Operation – General Tools and Instruments CDM7722 User Manual
Page 4: Power on/off, Activates max, min, stel,twa function, Selects mode or, Creases value in calibration and setup
3
Enters setup mode.
Saves and finishes settings.
Enters CO calibration with .
2
Enters RH calibration with .
Exits setup page/mode.
Resets the meter and clear MAX/MIN.
Terminates during calibration.
Selects AIR, DP, WBT temps display.
(7722/77232 only)
Selects mode or increases value in
calibration and setup.
Activates MAX, MIN, STEL,TWA function.
Selects mode or
de
creases value in
calibration and setup.
KEYPAD
SET
SET
CAL
ESC
CAL
ESC
DP/WB
M /
X
N
AVG
RESET
RESET
DP/WB
M /
X
N
AVG
OPERATION
Plug in the adaptor and the meter turns
on automatically with a short beep. It
performs 30 seconds countdown(Fig.1)
for meter warm up, then enters normal
mode with current CO , temperature,
2
and humidity(7722/77232) readings
displayed (Fig.2).
Fig. 1
Fig. 2
Model 7721/77231
Model 7722/77232
POWER ON/OFF
O
O
CO
2
PPM
%
%
O
O
CO
2
PPM
or