Apera Instruments LabSen 243-6 User manual

LabSen 243-6 Semi-Micro pH/Temperature Electrode

User Manual

LabSen electrochemical sensors are premium pH electrodes with manufacturing technology and key

components imported from Switzerland. LabSen 243-6 semi-micro pH electrode is designed for testing

the pH level of semi-micro samples (≥0.2ml) in small containers, such as tubes and vials.

This probe has the following features:

⚫ Special LabSen semi-micro cylindrical sensor tip, suitable for small-volume pH measurement

⚫ Blue gel inner solution, does not flow and will not cause a bubble.

⚫ Long life reference system, has better stability and service life.

⚫ Built-in temperature sensor

1. Technical Data

Measuring Range

（0-14）pH

Electrolyte

3M KCL

Temperature Range

（0~100）℃

Soaking Solution

3M KCL

Shaft Material

Lead-free Glass

Electrode

Dimension

Electrode（Φ12×148）mm

Measuring Tip（Φ6×100）mm

Reference

Long Life

Connector

BNC/RCA

Junction

Ceramic

Cable

Φ3×1m

2. Usage and Maintenance

2.1 Prior to measurement, unplug the rubber plug on the refilling hole to maintain pressure of the reference

solution, keeping consistent flow rate of reference solution and stable potentials of junction.

2.2 After a period of usage, the reference solution will run 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.

2.3 The connector of the electrode should be kept clean and dry. If 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.

2.4 The electrode’s measuring tip should be soaked in the soaking bottle containing storage solution to

keep the membrane hydrated and junction unblocked. When measuring, please unscrew the bottle cap,

pull out the electrode and rinse it with deionized or distilled water. After using, please put the electrode

back into the bottle and screw tight the cap. Clean the bottle and replace the storage solution if the

storage solution gets turbid and mildewed. The electrode should never be soaked in pure water or

buffer solution for long.

2.5 Please avoid measuring dehydrated medium like strong acid or strong alkaline solution, absolute ethyl

alcohol and concentrated sulfuric acid. In case of measuring such solution, please try to reduce the

immersion time and clean it carefully after use.

2.6 There is a temperature sensor built inside the pH electrode to enable automatic temperature

compensation function.

2.7 After 1-year of use, we recommend replacing the electrode to ensure the best accuracy.

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, LLC, any malfunctioned or damaged

product attributable to responsibility of APERA INSTRUMENTS, LLC 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, LLC

Address: 6656 Busch Blvd, Columbus, OH 43229 Phone: 1-614-285-3080

Website: www.aperainst.com Email: info@aperainst.com

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