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Toroidal Conductivity or Concentration Analyzer

Item# CDCN442

Toroidal Conductivity or Concentration Analyzer CDCN442 CDCN442
  • NEMA 4X (IP68) Case
  • 2 x 16 Digit LCD Readout
  • Assembly in 51 mm (2") Tube or Flat Surface or Panel 144 x 144 x 100 mm DIN (5.7 x 5.7 x 4")
  • Simple 3 Key Operation
  • Offers Cell Check
  • RS485 Output, ModBus and Proprietary Communication Protocol
Supply Voltage
Number of Control Outputs
Control Output Type
Form Factor
Number of Display Digits
Cell Constants
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Quantity Price each
1-4 C$1,305.00
5-9 C$1,239.75
10-24 C$1,213.65
25-49 C$1,161.45
50-99 C$1,135.35
100+ C$1,109.25

In stock

Lead Time ( If not in Stock): 8 weeks

Product Specs

  • Cell Insertion Length 100 mm (3.93")
  • Cell Range 1 µS/cm to 1 S/cm
  • Communication Output Types 4 to 20 mA (2)
  • Maximum Ambient Temperature 40 {C} (104 {F})
  • Maximum Conductivity 1 S/cm
  • Maximum Loop Impedance 600 Ω
  • Maximum Resistance infinity
  • Minimum Ambient Temperature 5 {C} (41 {F})
  • Minimum Conductivity 1µS/cm
  • Minimum Resistance 10 MΩ/cm
  • Power 3.5 VA
  • Resolution 0.1 or 0.01
  • Resistivity Range 10 MΩ/cm to infinity
  • Temperature Compensation 0 to 100°C (32 to 212°F)

The CDCN442 toroidal conductivity system isdesigned for online monitoring of chemically aggressive process solutions, water applications that coat or foul traditional sensors, and plating bath operations in which high current densities are present. The sensor consists of 2 metallic ribbon coils that are fixed in place by the sensor jacket material. The drive coil is used to induce a current in the process solution. The second sensing coil is used to measure the current in the process solution the magnitude of this current is proportional to the conductivity of the process solution. Toroidal sensors are available in polypropylene, and PEEK™ to ensure that sensor-wetted materials are chemically resistant to process chemicals. The sensor material is nonconductive, thereby isolating the sensor from electrical noise and ground loops that can influence the integrity of the measurement. This material also makes the sensor resistant to electrode coating, since most substances do not adhere to the sensor material. Sensors can be submersion mounted for easy installation in open tanks or pipe mounted in the optional 51 mm (2") tee fitting, which is keyed to the sensor for proper alignment. Tee fitting material is polypropylene. For larger pipe diameters, the sensor can be insertion mounted through a 11.2 NPT ball valve for easy retraction. The monitor comes with concentration/temperature tables for sodium hydroxide, potassium hydroxide, hydrochloric acid, nitric acid, and sulfuric acid. A configurable table allows the user to enter data points for a custom concentration curve. Typical applications include waste water treatment, power plants, thermo electric plants, pharmaceutical, photographic industries, soft drinks industries.

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