Process Control Instruments, Field Devices and Industrial Automation
ENDRESS+HAUSER CCS50D-AA11BF (1)
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EH Memosens CCS50D Digital Sensor for Amperometric measurement of dissolved Chlorine Dioxide (Cl2) in process and drinking water. 0-5 to 0-200 mg/l ClO2 range. Integrated 10k NTC temperature sensor.

Part# with Options:        CCS50D-AA11BF
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Memosens CCS50D offers high-precision measurement with long-term stability to guarantee optimum process monitoring

Application
  • Drinking water to guarantee reliable disinfection
  • Cooling water to prevent the growth of biofilms and pathogens
  • Food to guarantee food safety
  • Auxiliary equipment or utility services - to ensure the absence/presence of chlorine dioxide
Your benefits
  • The right choice of sensor for every application: from trace measurements to chlorine dioxide concentrations of 200 mg/l
  • The fast response time (t 90 < 15 s) ensures an accurate view of the process and allows the operator to react immediately to counteract changes
  • Flexible installation: Can be fitted in flow cell CCA151, CCA250 and immersion assemblies
  • Easy to combine with other relevant liquid analysis parameters (Liquiline)
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
  • Recording of sensor load data in the sensor enables predictive maintenance
Measuring principle Chlorine dioxide levels are determined in accordance with the amperometric measuring principle.

The chlorine dioxide (ClO 2 ) in the medium diffuses through the sensor membrane and is reduced to chloride ions (Cl - ) at the gold cathode. At the silver anode, silver is oxidized to silver chloride. Electron donation at the gold cathode and electron acceptance at the silver anode cause a current to flow which is in proportion to the concentration of chlorine dioxide in the medium. This process takes place in a wide pH and temperature range

The transmitter uses the current signal to calculate the measured variable for concentration in mg/l (ppm).

Mode of operation

The sensor consists of:

  • Membrane cap (measuring chamber with membrane)
  • Sensor shaft with large-surface anode and plastic, embedded cathode

The electrodes are in an electrolyte which is separated from the medium by a membrane. The membrane prevents the electrolyte from leaking and protects against contaminant penetration.

Calibration takes place by means of a colorimetric comparison measurement based on the DPD method for chlorine dioxide. The calibration value determined is entered in the transmitter.

Cross-sensitivity

The ions listed were checked with the specified concentrations. A summary effect has not been studied. No cross-sensitivities were observed up to the concentration levels indicated.

Free chlorine
Free bromine
Ozone

Measuring system

A complete measuring system comprises:

  • Disinfection sensor CCS50D (membrane-covered, ⌀25 mm) with corresponding installation adapter
  • Flowfit CCA151 flow assembly
  • Measuring cable CYK10
  • Transmitter, e.g. Liquiline CM44x or CM44xR
  • Optional: extension cable CYK11
  • Optional: flow assembly Flowfit CCA250 (if a pH/ORP sensor is to be installed)
  • Optional: immersion assembly CYA112

Measuring principle

Chlorine dioxide

Application

Drinking water - to ensure reliable disinfection
Cooling water - to avoid biofilm growth
Food - to ensure food quality
Utilities to secure the absence/presence of chlorine dioxide

Characteristic

Amperometric measurement of dissolved chlorine dioxide

Measurement range

trace: 0 ... 5 mg/l ClO2
standard: 0 ... 20 mg/l ClO2
high: 0 ... 200 mg/l ClO2

Measuring principle

- closed, membrane covered measuring cell
- Reduction of chlordioxide (ClO2) to chloride at the cathode with appr. 120mV.

Design

Closed amperometric 2-electrode measuring cell with PVDF membrane

Material

Sensor shaft: PVC
Membrane: PVDF
Membrane cap: PVDF

Dimension

Diameter: 25 mm (0.98 in)
Length: 161 mm (6.34 in)

Process temperature

+0 ...55 C (32 ... 130F), non-freezing

Process pressure

1 bar (14.5 psi)

Temperature sensor

10k NTC integrated (Memosens)

Connection

Inductive, digital connection head with Memosens


  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM442-AAM1A1F010A-AA EH Liquiline CM442 1 or 2 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) transmitter. 2 Memosens inputs, Up to 4 current and 2 relay outputs. IP66+IP67. NEMA Type 4X enclos ..

  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM442R-AAM1A1F01-AA EH Liquiline CM442R 1 or 2 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) DIN-rail transmitter. 2 Memosens inputs. Up to 4 current and 2 relay outputs. IP20. ..

  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM444-AAM20A0F010BAA-AA EH Liquiline CM444 4 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) transmitter. 4 Memosens inputs, up to 8 current and 4 relay outputs. Polycarbonate Housing. ..

  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM444R-AAM20A0F01-AA EH Liquiline CM444R 2 or 4 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) DIN-rail transmitter. Up to 4 Memosens inputs. Up to 8 current and 4 relay outputs. IP20. ..

  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM448-AA12A61AABAA-AA EH Liquiline CM448 8 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) transmitter. 8 Memosens inputs, up to 8 current and 2 relay outputs. IP67. Polycarbonate Housing. ..

  • ANALYSIS > MULTIPARAMETER TRANSMITTERS
    CM448R-AA02A61-AA EH Liquiline CM448R 8 channel digital multiparameter (pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity) DIN-rail transmitter. Up to 8 Memosens inputs. Up to 8 current and 4 relay outputs. IP20. ..

  • CHLORINE ANALIZERS > ASSEMBLY
    CCA250-A0 EH Flowfit CCA250 Flow assembly for free chlorine measurement in drinking, industrial and pool water. Designed to accommodate chlorine, pH and ORP sensors. Plexiglas Housing. ..

  • PH ANALIZERS > CABLES
    CYK10-A031 EH CYK10 Memosens Measuring Cable for Digital Sensors. IP68. FM, ATEX and CSA Approvals for Ex. ..


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