Apera Instruments LabSen 553 User Manual

LabSen electrochemical sensors are premium pH electrode with manufacturing technology and key
components imported from Switzerland. LabSen553 spear pH electrode adopts spear membrane,
which can easily pierce into solid or semi-solid medium. This probe is suitable for pH measuring of
fruits, vegetable and soil.
This probe has following features:
⚫ Solid PVC housing, offers stronger protection.
⚫ Blue gel inner solution, does not flow and will not cause bubble.
⚫ Maintenance-free polymer electrolyte, non-diaphragm structure.
⚫ Long life reference system, has better stability and service life.

1 Technical Data

Measuring Range
Temperature Range
Shaft Material
Membrane Type
Membrane
Resistance
Reference
Junction

2 Usage and Maintenance

2.1 Connect BNC and RCA plug to the input on the pH meter.
2.2 Pull off the rubber cover. Set them aside (DO NOT pour out the KCl solution). Rinse the electrode
with distilled water. Put the electrode back in the rubber cover after use.
2.3 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.
2.4 The electrode's measuring tip should be soaked in the soaking cover containing certain amount
of storage solution to keep the membrane hydrated and junction unblocked. Clean the cover
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.
2.5 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 Spear pH Electrode is suitable for measure wet solid or semi-solid medium. Please forcibly even
when piercing, to prevent damage of the electrode. In case the sample medium is too hard (such
LabSen 553 Spear pH Electrode
User Manual
(0 ~ 14) pH
(0 ~ 80)°C
PVC Plastic
S
<250MΩ
Long Life
Ceramic+Single Pore
Electrolyte
Soaking Solution
Temp. Sensor
Electrode
Dimension Measuring Tip (Ø6×25) mm
Connector
Cable
Polymer
3M KCl
NTC 30kΩ
Electrode (Ø15×90) mm
BNC+RCA
Ø5×1m