7. OPERATING INSTRUCTIONS
P.14
2.
When setting on mode, press the button to set Hi and Lo
limit.
(CO2 alarm setting see Fig.11 and Fig.12)
Fig.16
Fig. 9
Fig. 10
Fig. 11
Fig. 13
Fig. 14
Fig. 12
Note:
When the measuring values go beyond alarm point, the symbol will
blink “
Hi
” or “
Hi
” on the LCD.
The beeper will make “ beep-beep-beep ” sound.
The Lo alarm set cannot be greater than Hi alarm set.
Press the
▲
/
▼
button to
select auto power off option 10, 30
minutes, 1, 2, 4, 8 hours, or off.
(See Fig.13 or Fig.14)
7.3.5 Set auto power off time:
