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Show all products: Analysis pH / ORP
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pH/ORP transmitter
Liquisys CPM253

pH/ORP transmitter ©Endress+Hauser

Compact field device for all industries

Liquisys CPM253 is a standard pH/ORP transmitter for all analog and digital Memosens sensors. It improves your operational safety thanks to continuous plausibility, process and sensor checks. Select from numerous hardware and software modules, such as relays or fieldbus communication, to adapt it exactly to your measuring task. This modularity also allows you to upgrade the transmitter at any time. A simple menu and two-point calibration make configuration and operation fast and easy.

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Meet your basic measurement needs

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Handle your core processes easily

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Optimize your processes with innovative technologies

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Master your most challenging applications

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  • Specs at a glance

    • Input

      One-channel-transmitter

    • Output / communication

      0/4-20mA, Hart, Profibus.

    • Ingres protection

      No

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  • Optional add-ons
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Additional components

  • Benefits

    • More operational safety: Continuous process check system, customized alarm configuration, proven Memosens interface for reliable sensor connection.

    • Reliable self-monitoring: Sensor check system for pH glass and reference, calibration plausibility check.

    • ...

  • Field of application

    The Liquisys CPM253 transmitter works with all pH/ORP glass and ISFET sensors in non-hazardous areas, for example in these industries and their utilities:

    • Chemicals

    • Food & Beverages

    • Power & Energy

    • Water & Wastewater

    • Primaries & Metal

    Liquisys CPM253...

Features and specifications

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Details

  • Measuring principle

    Sensor ORP / Redox

  • Application

    Water, waste water, process

  • Characteristic

    4-wire transmitter

  • Design

    pH/ORP-field housing made of PC/ABS

  • Material

    PC/ABS-housing

  • Dimension

    247x170x115mm

  • Temperature sensor

    Display and current output

  • Ex certification

    No

  • Ingres protection

    No

  • Input

    One-channel-transmitter

  • Output / communication

    0/4-20mA, Hart, Profibus.

  • Additional certifications

    CSA Gen. Purpose.

  • Measuring principle

    Potentiometric

  • Application

    Water, waste water, process

  • Characteristic

    4-wire transmitter

  • Design

    pH/ORP field housing made of PC/ABS

  • Material

    PC/ABS housing

  • Dimension

    247x170x115mm
    (9.63x6.63x4.48inch)

  • Temperature sensor

    Display and current output

  • Ex certification

    No

  • Ingres protection

    No

  • Input

    One-channel-transmitter

  • Output / communication

    0/4-20 mA, Hart, Profibus

  • Additional certifications

    CSA Gen. purpose

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
  • 410,420,46
  • 335
  • 330,340,45
  • 400
  • 430
  • 490
  • 470
    • Order code 50086842

      Post mounting kit for LIQUISYS

      for mounting the field-transmitters on horizontal or vertical pipes (max. diam. 60 mm). Material: stainless steel V2A

  • 310
  • 40
  • 290
    • Nr 290 Order code 71134732

      Kit CxM2x3: Relay mod. for PBDP; H/W2.1x

      Content: 1x Relay module Profibus DP 2x Relay, 1x Current input DP connection qualified from H/W 2.10

  • 230
  • 10
  • 20
    • Nr 20 Order code 51500318

      KIT CxM2x3 power supply 24 AC/DC

      KIT CxM2x3 power supply DC

    • Order code 51500320

      Kit CXM2X3 Relaismod. 2rel

      Upgrade of LIQUISYS-M basis version by 2 floating changeover contacts.

  • 290
    • Nr 290 Order code 51511446

      KIT CXM2X3 relay mod. 2rel / CSA

      Upgrade of LIQUISYS-M basis version by 2 floating changeover contacts.

  • 300
    • Nr 300 Order code 51500321

      Kit CXM2X3 Relaismodule 4rel

      Upgrade of LIQUISYS-M basic version by 4 floating changeover contacts.

    • Nr 300 Order code 51511447

      KIT CXM2X3 relay mod. 4rel / CSA

  • 290
    • Nr 290 Order code 51504304

      Kit CXM2X3 Relais Mod. 2rel.+I/CSA

      Upgrade of LIQUISYS-M basic version by 2 contacts and current input 4-20mA.

  • 300
    • Nr 300 Order code 51504305

      Kit CXM2X3 Relais Mod. 4Rel+I/CSA

      Upgrade of LIQUISYS-M basic version by 4 contacts and current input 4-20mA.

  • 999
    • Order code 51500385

      Upgrade "Plus-Package" for LIQUISYS-M

      Upgrade of LIQUISYS-M basic version (parameter pH,Cond.,Tu,CL,O2 (WX to WS)) to S-version (plus-package). Serial number of instrument needed.

    • Order code 51500963

      Upgrade cleaning for LIQUISYS-M

      Upgrade of LIQUISYS-M basic version by cleaning functionality (Chemoclean) (serial number of instrument needed). If not yet installed, a 4-relay board must be ordered separately (51500321).

  • Predecessor

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  • Baltic Sea water used as cooling water in the power station Baltic Sea water used as cooling water in the power station

    Cooling water directly from the Baltic Sea

    With the CUS52D, power plant operator KNG benefits from reduced maintenance costs due to reliable, stable measurement even under harsh conditions in salt water.

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