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XS Instruments COND 7 Plus User Manual

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12
7+Series Version 2.0
Measurement
Rinse pH electrode in pure water, allow it to dry, and submerge it in tested solution. Stir the solution briefly and allow
it to stay in the tested solution until icon appears on LCD and a stable reading is reached which is pH value of
tested solution.
Self-diagnosis information
Display Icons
Contents
Checking
Wrong pH buffer solution or the
recognition of calibration solution out of
range
1.Check whether pH 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 pH 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.Check whether the electrode is suspended.
2.Check whether the meter connects the
electrode well.
3.Check whether the electrode is damaged
Factory default setting
For factory default setting, please refer to parameter P1.5. Per parameter P1.5, all calibration data is deleted
and the meter restores to the theory value (zero electric potential of pH is 7.00, the slope is 100%). Some
functions restore to the original value (refer to appendix -1). When calibration or measurement fails, please
restore the meter to factory default setting and then perform re-calibration or measurement. Please note
once set the factory default, all the data deleted will not be retrievable.
When the 1
st
point calibration is
done, press key to return
in measurement mode.
After the 3
rd
point calibration, the
meter enters into the
measurement mode
automatically.
Press to turn on
the meter
Press key to enter
into the calibration
mode
Submerge the electrode in pH
7.00 solution, press key
when icon appears
Sample
test
When the 2
nd
point calibration is
done, press key to return
in measurement mode.
Submerge the electrode in pH
4.01 solution, press key
when icon appears
Submerge the electrode in pH
10.01 solution, press key
when icon appears

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XS Instruments COND 7 Plus Specifications

General IconGeneral
BrandXS Instruments
ModelCOND 7 Plus
CategoryMeasuring Instruments
LanguageEnglish

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