COMBINATION pH ELECTRODE EPS-2


The EPS-2 combination glass electrode is designed or pH measurements in liquids in range 0 to 14 pH.
Working temperature up to 120°C. (140°C. in steam)
The electrode is distinguished by low impedance, short stabilisation period and good linearity at the ends of the measurement range.
The gel electrolyte is not refillable, but sufficient for all the exploitation period.
The ceramic electrolytical junction (diaphragm) is placed above the membrane of the electrode and it enables the contact between the measured solution and electrolyte in the reference electrode.
The electrode is equipped with a glass, hemispheric membrane.
The BNC-50 connector enables cooperation with majority of available pH meters.

The reference half cell is separated by an internal electrolytical diaphragm, what creates the ionic barrier. It prevents the silver ions from diffusion to the reference half cell, what in turn limits the chance of clogging of the ceramic diaphragm and interferences caused by the sulfide and cyanide ions from the measured solution. It also limits the interference caused by the reducing agents such as amines, buffers containing TRIS, sulfites, etc.
To keep the electrode permanently activated, it is equipped with a bottle filled with 3 M KCl put on its end, it should be taken off before the measurement. Such solution prolongs the electrode's life time. A special sealing ring protects from the electrolyte leakage from the bottle. The ring is tightened by screwing the bottle cap.
High quality at an affordable price.



Technical Data
Range 0 ÷ 14 pH
Working temperature range 0 ÷ 120 °C (140 °C in steam)
Zero point 7 ±0.4 pH
Diaphragma type / membrane ceramics / glass
Electrolyte KCl gel
Impedance 300 MΩ (25 °C)
Body diameter 12.0 mm ±0.5 mm
Length without cap 140 mm ±5 mm
Pressure 6 bar (25 °C)
Minimal immersion level 30 mm
Maximal immersion level 105 mm
Body material glass
Cable length about 1 m
Connector BNC-50