Hefer

Hefer CLO-3000C Online Chlorine Dioxide Analyzer

Online chlorine dioxide (ClO2) measurement in drinking water, food and cooling water lines with the Hefer CLO-3000C analyzer: potentiostatic PME sensor, 0.01-20 ppm, two control relays and a 4-20 mA output.

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Technical specifications

Hefer chlorine dioxide analyzer panel: a Model 3000 controller with an LCD and five keys beside a blue electrode in a clear acrylic sample cell, inside a wall-mount enclosure

CLO-3000C controller	0.01-20 ppm ClO2; resolution 0.01 / 0.001 ppm; accuracy ±2% of the reading; 2 × SPDT control relays (On/Off, PWM, PFM) + 1 × SPDT alarm relay, 5 A dry contacts; isolated 4-20 mA output
PME chlorine dioxide sensor	Potentiostatic measuring electrode with two platinum electrodes (epoxy body, 12 mm), a double-junction ceramic reference and a Pt100 temperature sensor; automatic temperature compensation
Enclosure	IP-65 wall-mount enclosure with a clear door and two locks (350 × 350 × 180 mm); keyboard lock option
Calibration	3-way sample / zero valve; one-point field calibration takes no longer than 2 minutes

The Hefer CLO-3000C is an online analyzer that measures chlorine dioxide (ClO₂) continuously in the range of 0.01-20 ppm with a potentiostatic PME sensor, ±2% accuracy of the reading and 0.01 / 0.001 ppm resolution. It has two SPDT control relays, one alarm relay, an isolated 4-20 mA output and an IP-65 wall-mount enclosure with a clear door. As the Hefer distributor in Turkey, Mikron Proses (Üsküdar, Istanbul) supplies, commissions and calibrates Hefer analyzers.

The CLO-3000C is a potentiostatic analysis system that monitors the chlorine dioxide (ClO₂) concentration continuously in water conditioning and disinfection lines.

Main features

PME chlorine dioxide sensor: a potentiostatic measuring electrode with automatic temperature compensation.
CLO-3000C controller: measures in the 0.01-20 ppm range. It has two SPDT relays (On/Off, PWM or PFM) to drive dosing pumps or a chlorine dioxide generator, one alarm relay and an isolated 4-20 mA output.
Calibration: a 3-way valve supplies both the sample water and the zero sample; a one-point calibration can be done in the field in no longer than 2 minutes. The controller has an optional keyboard lock.

Applications

Continuous chlorine dioxide disinfection monitoring in network and well water
Chlorine dioxide control of CIP and rinse water in food and beverage lines
Legionella prevention and biocide dosing automation in cooling towers

Datasheets and manuals

Documents were last compared with the manufacturer's source on 2026-08-23.

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