Apera Instruments LabSen 243-6 User Manual

LabSen 243-6 Semi-Micro pH/Temperature Electrode
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
Temperature Range
Shaft Material
Reference
Junction

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.
User Manual
（0-14）pH
（0~100）℃
Soaking Solution
Lead-free Glass
Long Life
Ceramic
Electrolyte
Electrode（Φ12×148）mm
Electrode
Dimension
Measuring Tip（Φ6×100）mm
Connector
Cable
3M KCL
3M KCL
BNC/RCA
Φ3×1m