Apera Instruments LabSen 241-6 User manual

LabSen 241-6 Semi-Micro pH Electrode
User Manual
LabSen electrochemical sensors are premium pH electrode with manufacturing technology and key
components imported from Switzerland. LabSen 241-6 semi-micro pH electrode is suitable for micro
sample (≥0.2ml) in small containers, such as tubes and vials.
This probe has following features:
Impact-resist membrane, there is no danger of electrode breakage during normal use.
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
3M KCl
Temperature Range
(0 ~ 100)°C
Soaking Solution
3M KCl
Shaft Material
Lead-free Glass
Electrode
Dimension
Electrode (Ø12×150) mm
Measuring Tip (Ø6×100) mm
Reference
Long Life
Connector
BNC
Junction
Ceramic
Cable
Ø3×1m
2 Usage and Maintenance
2.1 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 Prior to measurement, remove the rubber plug to maintain pressure of the reference solution,
keep consistent flow rate of reference solution and stable potentials of junction.
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 After a period of usage, the reference solution will running low. Whenever the level falls to 1/2
height of the electrode, add 3M KCL solution to the refilling hole by using syringe or pipette.
2.5 The connector of the electrode should keep 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.
2.6 The electrode’s 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.
2.7 After 1-year of use, we recommend replacing the electrode to ensure the best accuracy.
3 Warranty
We warrant this electrode free from defects in material and workmanship and agrees to repair or
replace free of charge, at option of APERA INSTRUMENTS 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:
transportation; storage; improper use; failure to follow the product instructions or to perform any
preventive maintenance; modifications; combination or use with any products, materials, processes,
systems or other matter not provided or authorized in writing by us; unauthorized repair; normal wear
and tear; or external causes such as accidents, abuse, or other actions or events beyond our
reasonable control.
APERA INSTRUMENTS (Europe) GmbH
Address: Wilhelm-Muthmann-Str.15,
42329 Wuppertal, Germany
Phone: [phone]
Website: www.aperainst.de
Email: [e-mail]