(+65) 6931 4598
6D Mandai Estate #09-11 M-Space



The MicroTrac is a microprocessor based feed and bleed toroidal conductivity controller designed to control conductivity and feed inhibitor in cooling tower systems. Featuring innovative toroidal sensor technology, the MicroTrac provides an economical control platform that is not susceptible to sensor fouling and never requires calibration! The MicroTrac conductivity controller has a 0 – 9,999 µS/cm range, making it ideal for other applications as well, such as rinse, industrial process, wastewater, etc.

General Specifications

Enclosures NEMA 4X / IP65
Flow Switch Pressure 125 psi / 8.6 bar
Flow Switch Temperature 122⁰F / 50⁰C Max
Conductivity Range 0-9,999 μS/cm
Power Input 90 VAC – 50/60HZ – 5A, 250 VAC – 50/60 HZ – 5A
Controller Set Point Differential Hysteresis: Fixed 5% below the set point
Controller Display LCD
Timers Water Meter Pulse Timer, Percent Timer, % Post Bleed Timer, Limit Timer
Flow Switch Activate Flow Rate Approx. 1 gpm/3.78 lpm
Average Current Draw Line Voltage at 240 VA Per Relay, 120 VAC: Amps – 2
Controls Timers: Water Meter Pulse Timer – Percent Timer – % Post Bleed Timer – Limit Timer
Product Options
  • Prewired
  • Flow Assembly
  • Standard Panel and Flow Assembly
  • Panel Mounted with Pumps
  • Cable Length
  • Corrosion Coupon Racks
  • Metering Pumps
  • Motorized Ball Valves
  • Solenoids
  • Water Meters

Sensor Specifications

Sensor Type Toroidal
Sensor Temperature 122⁰F / 50⁰C Max
Sensor Temperature Compensation Range 32-122⁰F / 0-50⁰C
Sensor Pressure 125 psi / 8.6 bar
Sensor Cable Length Standard: 15′ / 4.5 m, Max: 100′ / 30.4 m
Sensor Thread Size 0.5″ Standard thread – Excludes Tee and Reducer
Sensor Max Outside Diameter 1.5″ / 38 mm – Excludes Tee and Reducer


  • Selectable rising or falling setpoint for open or closed loop control
  • Water meter pulse timer
  • Percent timer
  • % Post bleed timer
  • Limit timer
  • Simple Programming – Intuitive menu with soft keys touch pad
  • Toroidal Probe – No calibration required
  • Easy installation and easy to use
  • Heavy duty enclosure