NIEUWKOOP EC2620, Руководство пользователя

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TESTERS
EC2620 / EC2630 / EP2000 / PH2620 / PH2630 / PH2720
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12
SETUP MENU FUNCTIES voor alle Testers
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.

Electrode slope out of range
（
<85%
or >110%
）
2. Check whether pH buffer solution is
correct.
3. Replace with new pH electrode.

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