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The chlorine measuring probe is an electrochemical sensor for measuring the concentration of chlorine in water.

The measuring cell captures free chlorine from inorganic chlorine products (hypochlorite, chlorine gas, etc.).

The measuring method has a reduced pH dependency, so that pH fluctuations only have a limited impact on the measurement signal.

pH value increases only lead to an approximately 10% reduction of the measuring signal per pH unit.
Features
  • Stable signals even with fluctuating pH values
  • Abrasive particles are tolerated
  • Surfactants are partially tolerated

Specifications

Measurement Technology

  • Membrane-Covered, Potentiostatic Amperometric 3-Electrode System

Measurement Principle

  • Amperometry

Parameter

  • Free Chlorine with Reduced pH-Dependency

Measuring Range

  • 0...2 mg/L, 0...20 mg/L

Measurement Accuracy

  • Measurement Range 2 mg/L: at 0.4 mg/L & 1.6 mg/L < 1 %
  • Measurement Range 20 mg/L: at 4 mg/L < 1 %; at 16 mg/L W37< 3 %

Temperature Compensation

  • Automatic through Integrated Temperature Sensor Pt100

Response Time

  • T90: ~ 2 min

Housing Material

  • Micro-Porous Hydrophylic Membrane, PVC-U, Stainless Steel 1.4571

Dimensions

  • 205 x 25 mm (~8" x 1")

Weight

  • 0.1 kg (~0.2 lbs)

Interface

  • RS-485, Modbus RTU

Power Consumption

  • 0.6 W

Power Supply

  • 12...24 VDC (±10%)

Connector

  • 8-pin M12-plug

Maintenance Effort

  • ≤ 0.5 h/month (Typical)

Calibration/Maintenance Interval

  • Membrane Cap Change: Every 24 months
  • Electrolyte Change: Every 24 months

System Compatibility

  • Modbus RTU

Warranty

  • 1 Year (EU: 2 years) on Electronics; All wearing parts are not included in the warranty

Max Pressure

  • 3 bar (~43.5 psig)

Protection Type

  • IP68 (NEMA 6P)

Sample Temperature

  • 0...+45°C (~+32°F... +113°F)

Ambient Temperature

  • 0...+55°C (~+32°F... +131°F)

Storage Temperature

  • +5...+35°C (~+41°F... +95°F)

  • Swimming Pools
  • Drinking Water
  • Seawater

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