DULCOTEST CLB

Summary

Product Overview

DULCOTEST® sensors offer reliable online measurement of free (effective) chlorine for various water applications. These amperometric sensors are available in different versions to suit a wide range of water qualities, disinfection processes, and measurement ranges.

General Features

• Measurement Principle: Amperometric with 2 or 3 electrodes, membrane-covered (except for CLO series).
• Output Signal: Varies by model, including 4-20 mA, 0-1 V DC, and digital (CANopen).
• Temperature Compensation: Integrated in most models, except for CLE 3-DMT and CLB series.
• Cross-Sensitivity: Generally low for combined chlorine (chloramines), with specific models (CLE3.1, CLE 3.1-CAN-P) designed for higher selectivity.
• Disinfection Processes: Compatible with chlorine gas, hypochlorite, and electrolysis (except for certain models and configurations).
• Installation: Typically in a bypass with an open sample water outlet, or inline with specific fittings.
• Sensor Fitting: Common fittings include DGM and DLG III.
• Electrolyte: Supplied with 100 ml of electrolyte; diaphragm caps are replaceable on relevant models.

Specific Sensor Models

CLE 3-mA Series

Standard sensors for clear water, operating with controllers featuring a 4-20 mA input.

• Measured Variable: Free chlorine.
• Reference Method: DPD1.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (two-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Disinfection Process Limitations: Unsuitable for disinfectants with organic chlorine (e.g., based on cyanuric acid).
• Resistance: Salts, acids, alkalis; not surfactants.
• Typical Applications: Potable water, swimming pools (surfactant-free).
• Measuring Ranges:
  • 0.01–0.5 mg/l (CLE 3-mA-0.5 ppm)
  • 0.02–2.0 mg/l (CLE 3-mA-2 ppm)
  • 0.05–5.0 mg/l (CLE 3-mA-5 ppm)
  • 0.10–10.0 mg/l (CLE 3-mA-10 ppm)
  • 0.20–20.0 mg/l (CLE 3-mA-20 ppm)
  • 0.50–50.0 mg/l (CLE 3-mA-50 ppm)
  • 1.00–100.0 mg/l (CLE 3-mA-100 ppm)

CLE 3.1-mA Series

Designed for clear water with higher selectivity towards combined chlorine, for use with 4-20 mA controllers.

• Measured Variable: Free chlorine (HOCl), with high levels of combined chlorine.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (two-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Selectivity: High selectivity against combined chlorine, even in excess.
• Typical Applications: Potable water with higher combined chlorine, swimming pools.
• Measuring Ranges:
  • 0.01–0.5 mg/l (CLE 3.1-mA-0.5 ppm)
  • 0.02–2.0 mg/l (CLE 3.1-mA-2 ppm)
  • 0.05–5.0 mg/l (CLE 3.1-mA-5 ppm)
  • 0.10–10.0 mg/l (CLE 3.1-mA-10 ppm)

CLE 3-DMT Series

Standard sensor for clear water, for operation with ProMinent transmitters type DMT.

• Measured Variable: Free chlorine.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 3.3 V DC (5 P).
• Output Signal: 0–1 V DC (uncalibrated, not temperature-compensated).
• Temperature Measurement: Integrated Pt 1000 for temperature compensation in DMT transmitter.
• Typical Applications: Potable water, swimming pools (surfactant-free).
• Measuring Ranges:
  • 0.01–5.0 mg/l (CLE 3-DMT-5 ppm)
  • 0.10–50.0 mg/l (CLE 3-DMT-50 ppm)

CLE 3-CAN-P Series

Sensor for clear water with CAN-bus connection.

• Measured Variable: Free chlorine.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: Via CAN interface (11 - 30 V).
• Output Signal: Digital (CANopen), uncalibrated, temperature compensated, electrically isolated.
• Typical Applications: Potable water, swimming pool water.
• Measuring Range:
  • 0.01–10.0 mg/l (CLE 3-CAN-P-10 ppm)

CLE 3.1-CAN-P Series

Sensor for clear water with higher selectivity to combined chlorine, for CAN-bus controllers.

• Measured Variable: Free chlorine with high levels of combined chlorine.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: Via CAN interface (11 – 30 V).
• Output Signal: Digital (CANopen), uncalibrated, temperature compensated, galvanically isolated.
• Typical Applications: Potable water with higher combined chlorine, swimming pools.
• Measuring Range:
  • 0.01–10.0 mg/l (CLE 3.1-CAN-P-10 ppm)

CLO 1-mA Series

Suitable for clear water and electrolysis processes, with optional hydrodynamic cleaning for film-forming water.

• Measured Variable: Free chlorine.
• pH Range: 5.0 – 9.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 8.0 bar (at 25 °C).
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (2-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Disinfection Process: Suitable for diaphragm-free electrolysis.
• Resistance: Surfactants, films (with hydrodynamic cleaning).
• Measuring Principle: Amperometric, 3 electrodes, without diaphragm.
• Measuring Ranges:
  • 0.02–2.0 mg/l (CLO 1-mA-2 ppm)
  • 0.10–10.0 mg/l (CLO 1-mA-10 ppm)

CLO 1-CAN-P Series

For clear water and electrolysis processes, with CAN-bus connection and optional hydrodynamic cleaning.

• Measured Variable: Free chlorine.
• pH Range: 5.0 – 9.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 8.0 bar (at 25 °C).
• Intake Flow: 30–60 l/h.
• Supply Voltage: 11–30 V (via CAN interface).
• Output Signal: Digital (CANopen), uncalibrated, temperature-compensated, galvanically isolated.
• Disinfection Process: Suitable for diaphragm-free electrolysis.
• Resistance: Salts, acids, lyes, surfactants, dirt films, films (with hydrodynamic cleaning).
• Measuring Principle: Amperometric, 3 electrodes, without diaphragm.
• Measuring Range:
  • 0.10–10.0 mg/l (CLO 1-CAN-P-10 ppm)

CLO 2-mA Series

Designed for hot water (up to 70 °C) and electrolysis processes, with optional hydrodynamic cleaning.

• Measured Variable: Free chlorine.
• pH Range: 5.0 – 9.0.
• Temperature Range: 5 – 70 °C.
• Max. Pressure: 8.0 bar (at 25 °C).
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (2-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Disinfection Process: Suitable for diaphragm-free electrolysis.
• Resistance: Surfactants, films (with hydrodynamic cleaning).
• Measuring Principle: Amperometric, 3 electrodes, without diaphragm.
• Measuring Range:
  • 0.02–2.0 mg/l (CLO 2-mA-2 ppm)

CLB 2-µA Series

Cost-effective, simple sensor for clear water and electrolysis processes, for use with compact controllers.

• Measured Variable: Free chlorine.
• pH Range: 5.0 – 9.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 3.0 bar.
• Intake Flow: 30–60 l/h.
• Output Signal: Non-amplified primary current signal (not temperature-compensated, uncalibrated).
• Temperature Measurement: Integrated Pt 1000.
• Disinfection Process: Suitable for diaphragm-free electrolysis.
• Resistance: Surfactants.
• Measuring Principle: Amperometric, 3 electrodes, without diaphragm.
• Measuring Range: 0.05–5.0 mg/l (up to 10 mg/l for short-term shock chlorination).

CLB 3-µA Series

Similar to CLB 2-µA but requires constant media temperature.

• Measured Variable: Free chlorine.
• pH Range: 5.0 – 9.0.
• Temperature Range: 5 – 45 °C (constant temperature required).
• Max. Pressure: 3.0 bar.
• Intake Flow: 30–60 l/h.
• Output Signal: Non-amplified primary current signal (not temperature-compensated, uncalibrated).
• Temperature Measurement: None.
• Disinfection Process: Suitable for diaphragm-free electrolysis.
• Resistance: Surfactants.
• Measuring Principle: Amperometric, 3 electrodes, without diaphragm.
• Measuring Range: 0.05–5.0 mg/l (up to 10.0 mg/l for shock chlorination).

CBR 1-mA Series

For free chlorine and bromine in contaminated water, suitable for high pH up to 9.5.

• Measured Variable: Free chlorine, free bromine, combined bromine, DBDMH.
• Reference Method: DPD1.
• pH Range: 5 – 9.5.
• Temperature Range: 1 – 40 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (2-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Resistance: Salts, acids, alkalis, surfactants, dirt films.
• Measuring Principle: Amperometric, 2 electrodes, membrane-covered.
• Measuring Ranges:
  • 0.01–0.5 mg/l (CBR 1-mA-0.5 ppm) - Note: Measuring range for bromine is 2.25x higher.
  • 0.02–2.0 mg/l (CBR 1-mA-2 ppm) - Note: Measuring range for bromine is 2.25x higher.
  • 0.05–5.0 mg/l (CBR 1-mA-5 ppm) - Note: Measuring range for bromine is 2.25x higher.
  • 0.10–10.0 mg/l (CBR 1-mA-10 ppm) - Note: Measuring range for bromine is 2.25x higher.
• Typical Applications: Cooling water, process water, waste water, contaminated swimming pool water, raw water for drinking water treatment.

CLR 1-mA Series

For high concentrations of free chlorine (up to 1,000 ppm) in contaminated washing water.

• Measured Variable: Free chlorine.
• Reference Method: DPD1.
• pH Range: 5.5 – 8.0.
• Temperature Range: 5 – 45 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 16–24 V DC (2-wire).
• Output Signal: 4–20 mA (uncalibrated, temperature-compensated).
• Resistance: Salts, acids, alkalis, surfactants, dirt films.
• Measuring Principle: Amperometric, 2 electrodes, membrane-covered.
• Measuring Ranges:
  • 10.0–200 mg/l (CLR 1-mA-200 ppm)
  • 10.0–1,000 mg/l (on request)
• Typical Applications: Salad, vegetable, and poultry washing water; contaminated process and waste water.

CBR 1-CAN-P Series

For free chlorine and bromine in contaminated water, with CAN-bus connection.

• Measured Variable: Free chlorine, free bromine, combined bromine, DBDMH.
• Reference Method: DPD1.
• pH Range: 5 – 9.5.
• Temperature Range: 1 – 40 °C.
• Max. Pressure: 1.0 bar.
• Intake Flow: 30–60 l/h.
• Supply Voltage: 11–30 V DC (via CAN interface).
• Output Signal: Digital (CANopen), uncalibrated, temperature-compensated, galvanically isolated.
• Resistance: Dirt films, biofilms, surfactants.
• Measuring Principle: Amperometric, 2 electrodes, membrane-covered.
• Measuring Range:
  • 0.01–10.0 mg/l (CBR 1-CAN-P-10ppm)
• Typical Applications: Cooling water, process water, waste water, contaminated swimming pool water.

General Operating Data

• General Measuring Ranges: 0.01 – 200 mg/l, special measuring range up to 1,000 mg/l.
• Applications: Potable water, swimming pool water, cooling water, industrial water, process water, rinsing water, waste water, seawater, and salt water.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

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