Waterproof tester series
10
ERROR DESCRIPTION
Error
Contents
Checking
Wrong pH buffer solution or the
recognition of calibration solution out
of range
1.Check whether buffer solution is correct.
2.Check whether the meter connects the
electrode well.
3.Check whether the electrode is damaged.
Press
key when measuring value is
not stable during calibration.
Press
key
when
icon appears
During calibration, the measuring value
is not stable for
≥3min
.
1.Check whether there are bubbles in glass
bulb.
2.Replace with new electrode.
Electrode zero electric potential out of
range (<-60mV or >60mV)
1.Check whether there are bubbles in glass
bulb.
2.Check whether pH buffer solution is correct.
3.Replace with new pH electrode.
Electrode slope out of range
（
<85%or
>110%
）
pH measuring range out of range
(<0.00 pH or >14.00pH) 1 Series
( <-2.00 pH or >16.00pH ) 5 Series
1.Check whether the electrode is suspended.
2.Check whether the meter connects the
electrode well.
3.Check whether the electrode is damaged
DISPOSAL OF ELECTRONIC DEVICES
The electrical and electronic equipment marked with this symbol cannot be disposed of in
public landfills.
According to the UE Directive 2002/96/EC, the European users of electrical and electronic
equipment can return it to the dealer or manufacturer upon purchase of a new one.
The illegal disposal of electrical and electronic equipment is punished with an administrative fine.
Pocket Series 1-5 V1.0 ENG August 2017
