pH electrodes without temperature and without electrolyte

These pH glass electrodes are designed for applications with low conductivity and a high risk of poisoning. By separating the pH and reference electrodes, only the pH electrode needs to be replaced, helping to reduce operating costs while extending the service life of the reference electrode.

pH glass electrodes without electrolyte

In these measuring systems, the reference electrode is installed separately from the pH electrode. This arrangement is particularly advantageous in applications where the pH-sensitive glass electrode requires more frequent replacement than the reference electrode.

Variants with S glass are suitable for applications involving temperature shocks and high pH values. Different membrane types are available to optimize performance for specific process conditions.

• Ideal for low conductivity media and risk of poisoning
• Reduced operating costs through separate reference electrode
• S glass versions for temperature jumps and high pH values

The pH glass electrodes without electrolyte feature a glass shaft (12 mm diameter), Ag/AgCl reference system and a screw plug head or fixed cable, with variants available in different glass types, membrane designs and measuring ranges.

Models:

The temperature must be measured using a separate resistance thermometer and the corresponding reference electrodes must be installed separately.

• S 1181 HD – S glass, sphere membrane, 1...14 pH, 0...+135 °C, length 120 mm
• S 2781 HD – S glass, dome membrane, 2...14 pH, +10...+135 °C, length 120 mm
• H 1181 HD – H glass, sphere membrane, 1...14 pH, 0...+135 °C, length 120 mm
• L 1181 HD – A glass, sphere membrane, 1...14 pH, 0...+135 °C, length 120 mm
• 9501/85 – H glass, sphere membrane, 5 m fixed cable with free end, 0...14 pH, 0...+135 °C, length 120 mm

The temperature must be measured using a separate resistance thermometer.
Suitable reference electrodes can be found here: Reference electrodes (Product detail page).

Other pH electrodes including or without temperature measurement are available:

• pH electrode with Pt100 temperature sensor
• pH electrodes with Pt1000 temperature sensor
• Digital pH electrodes with Memosens and temperature sensor
• pH electrodes with liquid or KCl electrolyte, without temperature
• pH electrodes with gel or polymer electrolyte, without temperature