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EH Indumax CLS50D Digital Memosens toroidal inductive conductivity sensor for hazardous and high-temperature chemistry applications. Corrosion and moisture resistant. PEEK or PFA material. Integrated Pt1000 temperature sensor. IP67. ATEX, CSA, FM and IECEx approvals.

Part# with Options:        CLS50D-AA1B11
Price with Options:        Please Email us your request for quote   


(1) Approval for EH Memosens CLS50D
Process Connection
(2) Process Connection for EH Memosens CLS50D
Sensor, Seal & Adapter Material
(3) Sensor, Seal & Adapter Material for EH Indumax CLS50D
Cable Lenght
(4) Cable Lenght for EH Indumax CLS50D
Cable Connection
(5) Cable Connection for EH Memosens CLS50D

  Availability 2 Weeks  ]


Indumax CLS50/CLS50D is particularly suitable for use in the chemical industry and process engineering. The six-decade measuring range and the excellent chemical resistance properties of the materials in contact with the medium (PFA or PE

  • Concentration measurement of acids and bases
  • Quality monitoring of chemical products in tanks and pipes
  • Phase separation of product/product mixtures

The CLS50D digital sensor is used with Liquiline CM44x or Liquiline M CM42, while the CLS50 analog sensor is used with the Liquiline M CM42, Liquisys CLM223/253 or Mycom CLM153 transmitters.

Your benefits
  • High durability
    • High chemical resistance thanks to PFA coating
    • PEEK version for temperatures up to 180 C (356 F)
  • Low risk of soiling
    • Dirt-repellent PFA surface
    • Large sensor opening
  • Easy installation
    • Can be installed in pipes ≥ DN 80
    • Total cable length up to 55 m (180 ft)
  • Large measuring range from 2 μS/cm to 2000 mS/cm
  • Integrated, coated Pt 100 temperature sensor, error class A
  • Ex approval Ex ia IIC T4/T6
Other advantages of Memosens technology
  • Maximum process safety
  • Data security thanks to digital data transmission
  • Very easy to use as sensor data saved in the sensor
  • Predictive maintenance possible as sensor load data logged in the sensor
Measuring principle

An oscillator (1) generates an alternating magnetic field in the primary coil (5), which induces a current flow (4) in the medium. The strength of the current depends on the conductivity and thus on the ion concentration in the medium. The current flow in the medium, in turn, generates a magnetic field in the secondary coil (3). The resulting induced current is measured by the receiver (2) and used to determine the conductivity.

Measuring Principle Inductive
Application Waste water, process
Characteristic Inductive conductivity cell made of highly resistant material for conductivity and concentration neasurements in process applications.
Measurement range 2S/cm - 2000 mS/cm
Measuring principle Inductive conductivity measurement
Design - No direct contact with the media because of the sensor coating made of highly resistant material.
Material PEEK or PFA
Dimension Electrode: outside diameter: appr. 47 mm inside diameter: appr. 15 mm
Process temperature max. 125C (PEEK)
(254F)max. 125C (PFA)
Process pressure max. 20 bar (PEEK)
(290 psi) max. 16 bar (PFA)
(233 psi)
temperature sensor Integrated Pt1000
Connection Process connection: NPT1", DN50, AINSI, JIScable: fixed cable connection.
Ingres protection IP67
Additional Certifications Calibration certification of the cell constant.

    CLA140-3A1A110 EH Dipfit CLA140 immersion assembly for conductivity sensors in applications with aggressive media. Includes flange connection and holder with bayonet lock. Thread G3/4 sensor connection. IP65...

    CLA111-00A EH Dipfit CLA111 immersion assembly for conductivity sensors in open and closed vessels. Includes DN100 flange connection and bayonet lock...

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EH Indumax CLS50 Analog toroidal conductivity sensor for standard, hazardous and high-temperature chemistry applications. Inductive cell. PEEK or PFA material. Integrated Pt100 temperature sensor. IP67. ATEX, FM and CSA approvals.




EH Indumax CLS54 Analog toroidal conductivity sensor for hygienic and sterile applications. Inductive cell. DN40 to DN125 Process Connection. Integrated Pt1000 temperature sensor. 100 S/cm - 2000 mS/cm Measurement range. IP68. ATEX, FM and CSA Approvals.




EH Indumax CLS52 analog toroidal conductivity sensor for hygienic and sterile applications. Stainless steel Pt100 temperature sensor. Inductive measuring cell. 0 - 2000 mS/cm measuring range. IP67. ATEX and qualitity certifications.



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