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Portable waterproof colorimeter
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Portable waterproof colorimeter

( Công ty TNHH Công nghệ ATP Việt Nam )

Eutech’s latest range of laboratory grade microprocessor-based portable waterproof colorimeters measure Chlorine (Free and Total), Cyanuric Acid, pH, Chlorine Dioxide, Bromine and Ozone with quick, accurate and repeatable results. The meters are easy to use because of their simple, intuitive and direct user interface. Guiding messages and self-diagnostics are displayed on a large custom-made liquid crystal display (LCD). Each meter comes with reagents and sample vials in a rugged carrying case for swift testing-on-the-go. This family of colorimeters is designed for reliable and convenient water analysis in swimming pools, spas, public utilities, industrial wastewater plants, municipal water, treated water, water conditioning systems and paper and pulp mills. Select from our wide range of models, designed to meet your application needs.

Product Features

Excellent repeatability, auto-ranging and easy to use
The meter ensures excellent repeatability, has auto-ranging capabilities while using only one-vial-one-sachet per test.
High Quality Reagents
The custom-formulated reagents provide excellent accuracy, repeatability and stability. They are conveniently packed for ease of use.
USEPA-approved DPD method*
Chlorine measurements are based on the USEPA-approved DPD method*.
Advanced Power Management 
The meter is capable of measuring more than 3,000 tests using a single set of 4 ‘AAA’ alkaline batteries. Auto power-off activates after 10 minutes of non-use to conserve battery life.
Fuss-free Meter Operation
The meter is designed for easy operation. It allows one-time blanking for all parameters and ranges when measuring the same sample. The blanking value is stored in memory even if batteries are replaced. Furthermore, no calibration is needed for Chlorine and Cyanuric Acid. Most importantly, the meter is maintenance-free.
Large Easy-to-read Display 
The large screen features 4-digit 14-segment customized liquid crystal display (LCD) with mode indicators to guide meter use.
IP67 waterproof and lightweight
The lightweight meter has a waterproof IP67-rated housing. It even floats when accidentally dropped in water


Product Specification

Parameters Range Resolution Accuracy C401 C301 C201 C105 C104 C103 C102 C101
Chlorine, Free and Total 0 to 1.99 ppm 0.01 ppm ±0.02 ppm          
2.0 to 6.0 ppm 0.1 ppm ±0.2 ppm
Cyanuric Acid 5 to 90 ppm 1 ppm ±4 ppm            
pH 5.9 to 8.2 pH 0.1 pH ±0.1 pH          
Chlorine Dioxide 0 to 3.79 ppm 0.01 ppm ±0.02 ppm              
3.8 to 11.4 ppm 0.1 ppm ±0.2 ppm
Bromine 0 to 4.49 ppm 0.02 ppm ±0.03 ppm              
4.5 to 13.5 ppm 0.2 ppm ±0.3 ppm
Ozone 0 to 1.39 ppm 0.01 ppm ±0.02 ppm              
1.4 to 4.1 ppm 0.1 ppm ±0.2 ppm
Measurement Method Photometric
Light Source Light Emitting Diode (LED)
Wavelength 525nm
Detector Silicon photodiode
Absorbance Range 0 - 2.5 Abs
Photometric Precision ±0.0015Abs
Automatic Range Selection 0 - 1.99 ppm (Free & Total Chlorine)
2.0 - 6.0 ppm (Free & Total Chlorine)
5 - 90 ppm (Cyanuric Acid)
5.9 - 8.2 pH

0.01 ppm (0 - 1.99 ppm; Free & Total Chlorine)
0.1 ppm (2.0 - 6.0 ppm; Free & Total Chlorine) 
0.1 pH (5.9 - 8.2 pH)
1 ppm (5 - 90 ppm; Cyanuric Acid)

Accuracy ±0.02 ppm (0 – 1.99 ppm; Free & Total Chlorine)
±0.2 ppm (2.0 – 6.0 ppm; Free & Total Chlorine)
±0.1 pH (5.9 – 8.2 pH) 
±4 ppm; Cyanuric Acid
Calibration Points User selectable; 1 point per colorimetric test
Display 4-digit 14-segments customized liquid crystal display with annunciators
Sample Cells Borosilicate glass with screw caps, fill line and indexing mark Height x Diameter : 51 x 25 mm
Sample Volume Required 10 ml
Operating Temperature Range 0 – 50°C
Operating Humidity Range 0-90% RH non-condensing at 30°C
Power Supply 4 ‘AAA’ alkaline batteries
Battery Life > 3000 tests
Electromagnetic EN 61326 Compliance (EMC)
Weight Instrument : 200g
Complete carrying case : 1.25kg
Dimensions Instrument : 
6.8(W) x 15.5(L) x 4.6(H) cm
Carrying case : 16(W) x 35(L) x 12(H) cm


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Last Updated: Thursday, 23 May 2024 15:09