Q46CT Toroidal Conductivity Monitor

ATi’s Q46CT Toroidal Conductivity Monitor offers a variety of features and options to meet virtually any conductivity water quality monitoring and control application.

Non-contact conductivity system

ATi’s Model Q46CT Toroidal Conductivity system is designed for online monitoring of chemically aggressive process solutions. While not suitable for low level conductivity measurement, this Toroidal monitor is an excellent choice for high conductivity applications. 

Conductivity measurement in aggressive chemical solutions or in water systems containing large amounts of solids, oils, and greases is very maintenance intensive using conventional 2 or 4 electrode sensors. However, ATi’s Model Q46CT employs an inductive (Toroidal) sensor that allows measurement in corrosive samples with virtually no maintenance.

While not suitable for low level conductivity measurement, Toroidal monitors are an excellent choice for high conductivity applications. The Q46CT is also available as a concentration monitor and control features have been expanded to include an optional 3rd analog output or an additional bank of low power relays.

Toroidal sensor

Features & specifications

  • Adaptable concentration version for direct display of chemical concentrations.
  • Extra Outputs – Expansion board to add a third analog output or three additional non-isolated low power relays.
  • AC or DC Power Options
  • Flexible, programmable range options from 0-200 PPB up to 0-200 PPM provide maximum application flexibility.
  • AC or DC Power Options
  • 3 Analog Output Options for conductivity and temperature.
  • PID Output
  • Digital Communications available in either Profibus-DP, Modbus-RTU or Ethernet-IP.
  • Relay Assignable – Three SPDT relays are standard, with three additional low power relays available as an option.
  • Flexible Mounting
  • Large, back-lit, LCD Display


  • High Conductivity Processes
  • High Solids Content Processes
  • Pharmaceutical Applications
  • Fume Scrubbers
  • Boiler Blowdown
  • Cooling Towers
  • Chemical Feed
  • Food and Beverage
  • Metal Plating / Rinsing
  • Bioremediation
  • Clean-In-Place
  • Potable Water
  • Wastewater Treatment
  • Pulp and Paper
  • Textile Manufacturing
  • Neutralization Tanks
  • Refining
  • Acid / Caustic Feed

Key benefits

  • Uses a inductive (toroidal) sensor
  • Corrosive sample measurement
  • Excellent for high conductivity applications



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