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Extech CL500 Free And Total Chlorine Meter

Extech CL500 Free And Total Chlorine Meter
sku: CL500
< 3 In Stock

Free UK Delivery On Orders Over £40
  • Measures the total residual chlorine level in a water sample
  • High accuracy and high resolution
  • Ideal for use in any water measurement application

RRP: £502.63
£279.00 Incl. VAT £334.80
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Extech CL500 Free And Total Chlorine Meter Details

Made for use in measurements of discharge water from water treatment plants, public drinking water and cooling towers and free chlorine measurements in swimming pools and other cooling water applications, the Extech CL500 provides accurate, fast measurements of free and total chlorine from 0.00 to 3.50ppm.

The CL500 can be used to measure total residual chlorine in all forms, including dissolved free chlorine, chloramines, hypochlorous acid and hypochlorite ion. To use, a sample of the water is inserted into a testing bottle along with a reagent tablet; the CL500 then measures the overall content of chlorine via its built in electrode.

Measurements taken using this chlorine meter are carried out with a high degree of accuracy (0.02ppm@1.00ppm) and with resolution of 0.01ppm. The method of measurement is approved by the U.S Environment Protection Agency (EPA) as an acceptable method for wastewater compliance monitoring of total chlorine levels.

Extech CL500 Free & Total Chlorine Meter Key Features

  • Uniquely designed meter for measuring free and total chlorine levels
  • Measures content from 0.00 to 3.50ppm
  • Uses electrode and reagent tablets to measure a water sample
  • Approved for use by the EPA
  • Easy to use and maintain over a time period
  • High accuracy and excellent resolution
  • Self-calibration ensures accuracy of the CL500 over a time period
  • Fast response gives quick measurements
  • Measures all types of total chlorine including free chlorine, chloramines, hypochlorous acid and hypochlorite ion
  • Data hold function temporarily stores the last value taken
  • Data recording of MIN/MAX readings over a time period
  • Free or Total mode selection
  • Auto-power off when left idle for ten minutes conserves battery life
  • Low battery indication

What's Included?

  • Extech CL500 Free & Total Chlorine Meter
  • 1.0ppm Free and Total Chlorine Standards
  • Zero Chlorine Standard
  • 2 x Test Bottles with Covers
  • 10 x Packs of Free and Total Chlorine DPD Powder
  • Cleaning Clotch
  • Hard Carrying Case
  • 6 x AAA Batteries
Technical Specs

Part Code: CL500

Extech CL500 Technical Specifications

 Display  LCD Size: 1.6 x 1.3" (41mm x 34mm)
 Operating Conditions   0 to 50°C (32 to 122°F) and <80% RH 
Chlorine Range 0.00 to 3.50ppm (Total Chlorine)
0.00 to 3.50ppm (Free Chlorine)
Resolution 0.01ppm
Accuracy 0.02ppm@1.00ppm
Light Source LED, 525nm
Light Detector Photo Diode
Response Time Less than 10 seconds
Sample Volume 10mL minimum
Sample Time Approximately 1 second
Power 6 x 1.5V batteries
Power Consumption Standby Mode: approx 4mA DC
Testing ModeL approx 12mA DC
Dimensions 155 x 76 x 62mm (6.1 x 3.0 x 2.4"); 320g (0.70lbs.) 
Auto Power OFF  Automatically switches OFF 10 mins after the last key press 
Method   The measuring method is an adaptation of the USEPA method 330.5 
and standard method 4500-CL G

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