Chlorine - DPD

Chlorine - DPD

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Online Residual Chlorine Analyser CLX

QC20040
Online Residual Chlorine Analyser CLX


Product number     QC20040

  • NEW! Optional extended range to 15 mg/l ± 10% accuracy
  • Total residual oxidant and chlorine monitoring
  • Low reagent use for low operating costs. Designed for unattended operation up to 30 days*
  • Low-cost, proven colorimetric DPD chemistry
  • User-selectable cycle times
  • Microprocessor-based technology
  • 4-20mA and RS-485 with Modbus output
  • USEPA accepted methodology
  • Standard Method 4500-CI G, DPD colorimetric method Certifications:
  • Lloyds Register Test Specification for Vibration and 22 Degree Tilt Test. En 60954: 2002 Section 8.2, 8.4, 8.7, Specification test No1: Section 14
  • IEC 6-parameter Environmental Marine Test for high humidity, high temperature (86°C), low temperature (-5°C), salt spray Certified by American Bureau of Shipping (ABS) for marine use


User selectable features and innovative design sets the new CLX Online Residual Oxident and Chlorine Monitor apart from the competition. Cycle times that are adjustable from 110 seconds to 10 minutes, 4-20mA and Modbus outputs that can control feed pumps and user settable alarms equates to low operating and maintenance costs. A new flow through design maintains cuvette cleanliness and allows for viewing of optical operations. The strong, shatterproof case that opens to facilitate reagent replacement also allows easy access to all service functions which reduces maintenance time. Unattended operation and low chemical usage equates to low operating cost.
  • Range 0 - 10 mg/l
  • Cycle time User selectable: 60 seconds - 10 minutes
  • Accuracy 0-6 mg/l - ±5% or 0.03 mg/l of CL2 whichever is greater
  • 6-10 mg/l - ±10%
  • Resolution 0.01 mg/l
  • Method USEPA accepted DPD method of analysis for measuring Free or Total Chlorine
  • Standard outputs 4-20 mA and RS-485 with Modbus
  • User alarms 2 User selectable alarms for sample concentration
  • Operating temperature 0° - 40°C (32° to 104°F)
  • Input pressure 5 - 150 psi
  • Enclosure ABS plastic, NEMA 4X, IP66
  • Power 100 - 240 volt auto switchable 47 - 63hz
  • Certifications CE, UL, CSA,(ETL, ETLc)
  • Shipping dimensions 16" x 16" x 10" (41cm x 41cm x 26cm)
  • Shipping weight 8 lbs (3.6 kg)
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