%
%
O
O
STEL
CO
2
Fig.8
NOTE:
1.
If the meter is turned on for shorter
than 15 minutes, the STEL value will
be the weighted average of readings
taken since power on. Same for TWA
values appear before 8 hours.
2.It takes at least 5 minutes to calculate
STEL and TWA. The LCD shows"----"
(Fig.9) during the first 5 minutes from
power on.
SET
%
%
O
O
STEL
CO
2
Fig. 9
The meter turns off automatically after
20 minutes of inactivity. To override the
function, hold down and for 2
sec to turn on the meter until "
n
" appears.
NOTE:
Auto sleep function will be disabled
during calibration mode.
6
SET
AUTO POWER OFF
ALARM
The meter features audible alarm to
give warnings when CO concentration
2
exceeds the limit. (See
P1.0
in setup
for setting the alarm threshold). It emits
beeps (Abt.80dB) when CO level goes
2
over the set value
and stops when any
key (except ) was pressed or
readings fall below the set value. It
beeps again when value goes over the
limit. Restartthe meter if beeper can't
be stopped.
3.While all readings are held unchanged,
STEL and TWA will keep updating
every 5 minutes.
