10
NOTE:
Users can also calibrate either point.
To calibrate 33% only, press and
exit when 33% calibration is completed.
To calibrate 75% only, press or
within the 5 minutes while initializing
33% calibration.
CAL
Esc
DP/WBT
"CAL" and calibrating value (75.2% if at
25°C) are blinking on the LCD with
current temp. at the left. Meter is now
calibrating. Wait about 60 minutes until
blinking stops, then calibration is
completed and it returns to normal mode.
? Error messages
E01: CO sensor damaged.
2
E02: The value is under range.
E03: The value is over range.
E04: The original data error results in
this error (DP, WB)
E07: Too low voltage to measure CO .
2
Replace batteries or use an adaptor.
E11: Retry humidity calibration.
E17: Retry CO calibration.
2
E31: Temperature sensor damaged.
E34: Humidity sensor damaged.
? Can’t power on
Press for more than 0.3 sec and try
again. Check whether batteries are in
good contact and correct polarity, or the
adaptor is well plugged.
TROUBLE SHOOTING
SET
? Fixed readings
Check whether data hold function was
activated. (HOLD icon at the left top)
? Slow response
Check whether the air flow channels on
the rear were blocked.
