Product Category

pH sensors & transmitters

Products for high-quality pH measurement in all industries

More than 30% of all quality-relevant measurements in processes are pH measurements. That’s why reliable pH sensors & transmitters are extremely important for plant optimization and process safety. We offer an extensive portfolio for all conditions, such as stable processes, fast changing media compositions, sticky media, hazardous areas or hygienic applications. Discover our ISFET, enamel or glass pH sensors, transmitters, assemblies and calibration solutions by clicking on the button below.

Products List

4-channel transmitter Liquiline CM444

Expandable multiparameter field device for all industries

Predecessor: CCM360, Sludge level CUM750

  • Input

    1 to 4x Memosens digital input
    2x 0/4 to 20mA Input optional
    2 to 4x Digital input optional

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs, alarmrelay,
    4x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet

  • Ingress protection

    IP66 / IP 67

Digital pH sensor Memosens CPS11E

Memosens 2.0 pH electrode for standard applications in process and water & wastewater industries

Predecessor: Orbisint CPS11D

  • Measurement range

    Application A
    • pH: 1 to 12
    Application B
    • pH: 0 to 14
    Application F
    • pH: 0 to 10

  • Process temperature

    Application A: –15 to 80 °C (5 to 176 °F)
    Application B: 0 to 135 °C (32 to 275 °F)
    Application F: 0 to 70 °C (32 to 158 °F)

  • Process pressure

    Applications A and B:
    0.8 to 17 bar (11.6 to 246.5 psi) absolute
    Application F:
    0.8 to 7 bar (11.6 to 101.5 psi) absolute

Cleaning and calibration system Liquiline Control CDC90

Fully automatic system for pH and ORP measuring points in all industries

Predecessor: Topcal S CPC310

Digital pH sensor Memosens CPF81E

Memosens 2.0 compact electrode for wastewater, mining, minerals and metal industries

Predecessor: Orbipac CPF81D

  • Measurement range

    pH 0 to 14

  • Process temperature

    Version LH: 0 to 110 °C (32 to 230 °F)
    Version NN: 0 to 80 °C (32 to 170 °F)

  • Process pressure

    1 to 10 bar abs at 80 °C
    (15 to 145 psi at 176 °F)

Digital ORP sensor Memosens CPF82E

Memosens 2.0 compact electrode for wastewater, mining, minerals and metal industries

Predecessor: Orbipac CPF82D

  • Measurement range

    -1500mV to +1500mV

  • Process temperature

    0 to 80 °C (32 to 170 °F)

  • Process pressure

    1 to 10 bar abs at 80 °C
    (15 to 145 psi abs at 176 °F)

Digital pH sensor Memosens CPS171D

Memosens glass electrode for bioreactors in the biotech industry and for the food industry

Successor: Memosens CPS61E

  • Measurement range:  pH 0 to 14

  • Process temperature:  0 to 135 °C (32 to 275 °F)

  • Process pressure:  1 to 7 bar abs (14.5 to 101.5 psi)

Digital pH sensor Memosens CPS61E

Memosens 2.0 glass sensor for the food & beverage industry and for bioreactors in biotech industry

Predecessor: Ceragel CPS71D, Memosens CPS171D

  • Measurement range: pH: 0 to 14

  • Process temperature:  Application N: 0 to 100 °C (32 to 212 °F) Up to 140 °C (284 °F) for sterilization

  • Process pressure: 0.8 to 7 bar (11.6 to 101.5 psi) absolute

Digital ORP sensor Memosens CPS62E

Memosens 2.0 ORP electrode for the chemical and life sciences industries

  • Measurement range: –1 500 to 1 500 mV

  • Process temperature: 0 to 100 °C (32 to 212 °F) 0 to 140 °C (32 to 284 °F) (140 °C (284 °F) or sterilization only)

  • Process pressure: 0.8 to 7 bar (11.6 to 101.5 psi) absolute

Combined pH/ORP sensor Memosens CPS76E

Memosens 2.0 combined electrode for chemical processes and poisoning media

Predecessor: Memosens CPS76D

  • Measurement range

    Application B:
    • pH: 0 to 14
    Application H:
    • pH: 0 to 12

  • Process temperature: 1 to 140 °C (32 to 284 °F)

  • Process pressure: 0,8 to 14 bar (11,6 to 203 psi) (absolute)

 

Digital pH sensor Memosens CPS71E

  • Measurement range

    ORP: –1 500 to 1 500 mV
    Application B
    • pH: 0 to 14
    Application H
    • pH: 0 to 12

  • Process temperature

    Application B and H:
    0 to 140 ° C (32 to 284 ° F)
    Version TB:
    0 to 140 ° C (32 to 284 ° F)
    Version TU, TP (pressurized reference):
    0 to 140 ° C (32 to 284 ° F) (140 ° C (284 ° F) for sterilization only)
    maximum 100 ° C (212 ° F) in continuous operation due to increasing
    pressure drop at T> 100 ° C (212 ° F)

  • Process pressure

    Application B: 0.8 to 14 bar (11.6 to 203 psi) absolute
    Application H: 0.8 to 7 bar (11.6 to 101,5 psi) absolute

Digital combined pH/ORP sensor Memosens CPS96E

Memosens 2.0 electrode for heavily polluted media in chemical processes, paper or paint production

Predecessor: Memosens CPS96D

  • Measurement range: ORP: –1 500 to 1 500 mV
    pH: 0 to 14

  • Process temperature: 0 to 110 °C (32 to 230 °F)

  • Process pressure: 0.8 to 14 bar (11.6 to 203 psi) absolute

1-/2-channel transmitter Liquiline CM442

Expandable multiparameter field device for all industries

Predecessor: Turbimax CUE21, Sludge level CUC101, Liquisys M CUM253, Liquisys M CUM223, ISEmax CAM40, Liquisys M COM223F, Liquisys M COM253F, Stamosens CSM750, Turbidity Transmitter CUM740, Stamosens CNM750

  • Input: 1 to 2x Memosens digital input, 2x 0/4 to 20mA input optional, 2x Digital input optional

  • Output / communication: 2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet

  • Ingress protection: IP66 / IP67

1-/2-channel transmitter Liquiline CM442R

Compact multiparameter DIN-rail and cabinet device for all industries

  • Input: 1 to 2x Memosens digital input, 2x 0/4 to 20mA Input optional, 2x Digital input optional

  • Output / communication: 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet

  • Ingress protection: Transmitter: IP20, Optional Display: IP66

1-channel transmitter Liquiline Compact CM72

Single-parameter field device for hazardous and non-hazardous applications in all industries

  • Input: One channel transmitter

  • Output / communication: 4 to 20 mA

  • Ingress protection: IP67, IP68, NEMA Type 6

1-channel transmitter Liquiline Compact CM82

Multiparameter field device for hazardous and non-hazardous applications in all industries

  • Input: One channel transmitter

  • Output / communication: 4 to 20 mA, HART

  • Ingress protection: IP67, IP68, NEMA Type 6

Multiparameter handheld Liquiline Mobile CML18

Mobile device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

Manual or automatic retractable assembly Cleanfit CPA871

Flexible process assembly for the water & wastewater and chemical industries

Predecessor: Cleanfit P CPA472, Cleanfit P CPA471

  • Process temperature: -10 to 140 °C (14 to 284 °F) for all materials except PVDF and conductive PVDF-10 to 100 / 90 °C (14 to 212 / 194 °F) for PVDF and conductive PVDF materials

  • Process pressure: Stainless steel, Alloy C22, PEEK: 16 bar up to 140 °C (232 psi up to 284 °F)
    PVDF, conductive PVDF: Basic version: 16 bar up to 100 °C (232 psi up to 212 °F) Immersion chamber version: 4 bar to 90 °C (58 psi up to 194 °F)

Manual or automatic retractable assembly Cleanfit CPA875

Sterilizable assembly for the life sciences and food & beverage industries

Predecessor: Cleanfit H CPA475, Probfit CPA465

  • Process temperature: -10 to 140 °C (14 to 284 °F)

  • Process pressure: Pneumatic drive: 16 bar up to 140 °C (232 psi up to 284 °F) Manual drive: 8 bar up to 140 °C (116 psi up to 284 °F)

Digital pH sensor Memosens CPL51E

Robust Memosens 2.0 pH sensor for laboratory measurement and random sampling in the field

  • Measurement range: pH 0 to 14 (1 to 12 application range)
  • Process temperature: -5 to 80 °C (23 to 176 °F)

  • Process pressure: 1 bar, not intended for continues measurment in process

Digital ORP sensor Memosens CPS12E

Memosens 2.0 ORP electrode for standard applications in process and water & wastewater industries

Predecessor: Orbisint CPS12D

  • Measurement range: -1500 mV to +1500 mV
  • Process temperature: -15 to 135 °C (5 to 275 °F)
  • Process pressure: 0.8 to 17 bar (11.6 to 246.5 psi) absolute

Digital combined pH/ORP sensor Memosens CPS16E

Memosens 2.0 glass electrode for standard applications in process and water & wastewater industries

Predecessor: Memosens CPS16D

  • Measurement range: ORP: –1 500 … 1 500 mV
    Application: A
    • pH: 1 to 12
    Application B
    • pH: 0 to 14

  • Process temperature: Application A: –15 to 80 °C (5 to 176 °F), Application B: 0 to 135 °C (32 to 275 °F)

  • Process pressure: 0.8 to 17 bar (11.6 to 246,5 psi) absolute

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67

Ex-certified multiparameter handheld Liquiline To Go CYM291

Portable device for pH/ORP, conductivity, oxygen and temperature measurement in all industries

  • Input

    M8 contact for Memosens low-power protocol, One channel instrument

  • Ingress protection

    IP 66/67