ENDRESS+HAUSER  CPS11-1AA2ESA

For standard applications in process and environmental technology, with dirt-repellent PTFE diaphragm, built-in temperature sensor (optional for analog sensor)

• Long-term monitoring and limit value monitoring of processes with stable process conditions
  • Chemical industry: strong acids/bases, plastic, pulp and paper industry
  • Power plants (e.g. flue gas cleaning), oil and gas
  • Incinerator plants
• Water/wastewater treatment
  • Boiler feedwater and cooling water
  • Well water and drinking water
  • All industrial and municipal treatment plants

With ATEX, IECEx, FM, CSA, TIIS and NEPSI approval for use in hazardous areas

• Low-maintenance and robust thanks to large PTFE ring junction
• Can be used at pressures up to 17 bar abs. (246 psi)
• Process glass also for very alkaline applications (BA and BT versions)
• Process glass for applications in media containing hydrofluoric acid (FA version)
• For media with low conductivity (AS version)
• Integrated NTC30K temperature sensor (Memosens) for effective temperature compensation; Pt100 or Pt1000 for analog sensors
• Optional: Poison-resistant reference with ion trap

• Maximum process safety
• 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 comprises at least the following components:

• pH electrode CPS11D or CPS11
• Transmitter, e.g. Liquiline CM42, CM44x, Mycom S CPM153, Liquisys M CPM2x3
• Memosens data cable CYK10 for Memosens sensors or CPK9 for analog sensors
• Immersion, flow or retractable assembly, e.g. Cleanfit CPA871