Apera Instruments LabSen 211 User Manual

LabSen electrochemical sensors are premium pH electrode with manufacturing technology and key
components imported from Switzerland. LabSen 211 routine pH electrode is suitable for routine use,
especially suitable for high-precision pH measurement of scientific research and quality control.
This probe has following features:
 Impact-resist membrane (see the right picture), 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
Temperature Range
Shaft Material
Membrane Shape
Reference
Junction

2 Usage and Maintenance

2.1 Connect BNC plug to the input on the pH meter.
2.2 When measuring, please unscrew the sleeve 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.
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.
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 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.
LabSen 211 Routine pH Electrode
User Manual
(0-14) pH
(-5~100)°C
Lead-free Glass
Half Ball
Long Life
Ceramic
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.
Electrolyte
Soaking Solution
Electrode Dimension
Connector
Cable
3M KCl
3M KCl
(Ø12×120) mm
BNC
Ø3×1m