Apera LabSen 232 User manual
LabSen 232 Premium pH Electrode
User Manual
LabSen electrochemical sensors are premium pH electrode with manufacturing technology and key
components imported from Switzerland. LabSen 232 premium pH electrode adopts polymer as solid
electrolyte, non-diaphragm electrode structure. It is suitable for the pH measurement of emulsion,
suspension, effluent, samples containing protein and sulfide.
This probe has following features:
⚫ Impact-resist membrane (see the right picture), there is no danger of
electrode breakage during normal use.
⚫ Maintenance-free polymer electrolyte, non-diaphragm structure.
⚫ Blue gel inner solution, does not flow and will not cause bubble.
⚫ Long life reference system, has better stability and service life.
1 Technical Data
Measuring Range
(0 ~ 14) pH
Electrolyte
Polymer
Temperature Range
(-5 ~ 80)°C
Soaking Solution
3M KCl
Shaft Material
Lead-free Glass
Electrode Dimension
(Ø12×120) mm
Membrane Shape
Half Ball
Connector
S7
Reference
Long Life
Cable
Ø3×1m
Junction
2-pore
2 Usage and Maintenance
2.1 Connect electrode to S7-BNC cable, and then connect BNC plug to the input on the pH meter.
2.2 When measuring, please unscrew the bottle cap, pull out the electrode and rinse it with
deionized water. After using, please put the electrode back into the bottle and screw tight the
cap.
2.3 Polymer reference electrode is a kind of high quality reference electrode with the feature of non-
diaphragm, hard to be contaminated, compression resistance and resistance to organic solution.
It is almost suitable for all pH measurement solution such as solution containing fat, oils, sulfide
and protein, effluent, weak ion solution, emulsion and suspension.
Before pulling out or putting back the electrode,
make sure to fully loosen the blue cap on the
storage sleeve so that the electrode can move
in and out smoothly.
2.4 The connector of the electrode should be kept clean and dry. If being contaminated, please
clean it with medical cotton and absolute alcohol and blow dry to prevent the short circuit of the
electrode and slow reaction of electrode.
2.5 The electrode measuring tip should be soaked in the soaking bottle containing certain amount
of storage solution to keep the membrane hydrated and junction unblocked. Clean the bottle
and replace the storage solution if the storage solution gets turbid and mildewed. The electrode
should never be sinked in pure water or buffer solution for long.
2.6 After long time exposure in air, Polymer electrolyte will cause shrinkage. It will not happen in
measurement status. The electrode must be soaked in 3M KCl solution for storage. After long
time soaking, there will be some floccules dissolving out from 3M KCl solution, this is normal
phenomenon.
2.7 After 1-year of use, we recommend replacing the electrode for best accuracy.
3 Limited Warranty
We warrant this electrode to be free from defects in material and workmanship and agrees to repair
or replace free of charge, at option of APERA INSTRUMENTS (Europe) GmbH, any malfunctioned
or damaged product attributable to responsibility of APERA INSTRUMENTS for a period of six
months. Warranty period is the time limit to provide free service for the products purchased by
customers, not the service life of the tester or electrodes.
This limited warranty does not cover any damages due to:
I. transportation;
II. storage;
III. improper use;
IV. failure to follow the product instructions or to perform any preventive maintenance;
V. modifications;
VI. combination or use with any products, materials, processes, systems or other matter not
provided or authorized in writing by us;
VII. unauthorized repair;
VIII. normal wear and tear; or
IX. external causes such as accidents, abuse, or other actions or events beyond our reasonable
control.
APERA INSTRUMENTS (Europe) GmbH
Wilhelm-Muthmann-Str. 18
42329 Wuppertal Germany
Tel.: +49 202 51988998
Email: [email protected]
www.aperainst.de
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