ENDRESS+HAUSER  CPS41-1AB2SSA

For process engineering with ceramic diaphragm and KCl liquid electrolyte, optionally available with integrated temperature sensor

Media with very low conductivity or a high proportion of organic solvents or alcohol:

• Chemical industry
• Organic chemicals
• Power stations
• Food industry
• Laboratory measurements

• KCl liquid electrolyte, can therefore be used with very low conductivity values (≥ 0.1 μS/cm)
• Ceramic diaphragm with specified KCl flow rate
• If counterpressure applied, can be used up to 11 bar (160 psi) abs. pressure
• Poison-resistant thanks to separate reference capillary
• Suitable for CIP / SIP
• pH membrane glass for applications involving steam sterilization
• Four lengths: 120, 225, 360 and 425 mm
• Available with integrated Pt100, Pt1000 temperature sensor for analog sensors or NTC30K for digital sensors

• Maximum process safety thanks to non-contact, inductive signal transmission
• Data security thanks to digital data transmission
• Very easy to use as sensor data saved in the sensor
• Recording of sensor load data in the sensor enables predictive maintenance with the Memobase Plus CYZ71D

The pH value is used as a unit of measurement for the acidity or alkalinity of a liquid medium. The membrane glass of the electrode supplies an electrochemical potential which is dependent upon the pH value of the medium. This potential is generated by the selective penetration of H + ions through the outer layer of the membrane. An electrochemical boundary layer with an electric potential forms at this point. An integrated Ag/AgCl reference system serves as the required reference electrode. The transmitter converts the measured voltage into the corresponding pH value using the Nernst equation.

A complete measuring system consists of the following components at least:

• pH electrode CPS41D or CPS41
• Transmitter, e.g. Liquiline CM42, CM44x/R, Mycom153, Liquisys M CPM2x3
• Memosens data cable CYK10 or CYK20 for Memosens sensors or CPK9 for analog sensors
• Immersion, flow or retractable assembly, e.g. Unifit CPA442
• Electrolyte vessel CPY7