General Tools and Instruments LTH8809DL - Manual (Page 17)

1.Power on but no display or meter
doesn't work .
a)For 8808/06, please check whether
the DC power is connected or not.
b)Make sure the time of pressing
"START/STOP" key is more than
100 mS.
c)Check the batteries are in place and
in good contact and correct
polarity.
d)Replace new batteries and try again.
e)Move the batteries for one minute
and put them back again
TROUBLESHOOTING
16
2.Calibration failure.
a)For 8808, please check whether
the DC power is connected or not.
b)Make sure the calibration bottle is
under good sealing status when the
meter's probe is plugged into the
salt bottle.
c)Make sure the free air temperature is
within 23+2 C when calibration is
processed.
3. Error Codes.
a)E02: The value is underflow.
b)E03: The value is overflow.
c)E04: The wrong value is caused by
E02 or E03.
d)E11: RH calibration error. Need to
re-calibrate.
e)E32: IC read/write error. Need to
return the meter to dealer for
repair.
f)E33: Circuit error in measurement
portion. Need to return the meter
to dealer for repair.