DGB-421 portable water quality colorimeter

The Sino Inst DGB-421 portable colorimeter for water quality employs the platinum cobalt standard colorimetric method, in line with the GB5750 national standard. It can read the chromaticity values of water samples directly without adding any chemicals. Built-in standard curve, zero and full scale calibration, 200 groups of measurement data storage, in line with GLP regulations. IP65 waterproof and dustproof grade, AA battery and USB dual power supply mode, the whole machine is light and portable, suitable for rapid detection of color in outdoor scenes such as field inspection, on-site law enforcement, emergency monitoring, etc.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Core Advantages

  • Platinum cobalt standard colorimetric method, in compliance with GB5750 national standard, with authoritative and reliable test results;
  • No need for reagents, direct reading, easy operation, even non professionals can quickly get started;
  • High intensity long-life light source, good stability, daily maintenance free;
  • Measurement unit PCU, compared to degrees Hazen、Pt-Co、Milligram platinum/liter universal corresponding;
  • Built in standard curve, supports zero and full calibration, accurate data;
  • Store 200 sets of measurement data, compliant with GLP standards, with traceable data;
  • IP65 waterproof and dustproof, suitable for harsh outdoor environments with high humidity and dust;
  • AA battery+USB dual power supply, worry free outdoor endurance, supports undervoltage prompt.

Core Technical Parameters

ItemTechnical Parameter
Measuring PrinciplePlatinum-Cobalt standard colorimetric method
Measuring Range0~50 PCU (Degree)
Indication Error≤±5% or ±1 degree
Repeatability≤3.0%
Protection GradeIP65
Data Storage200 sets of measurement data, GLP compliant
Power SupplyAA battery or USB power supply
Overall Dimension220×100×80 mm
Net WeightApprox. 0.8 kg
Operating Temperature5~35℃
Operating Humidity≤85% RH

Suitable for detection scenarios and applications

On site color screening of drinking water sources, inspection of surface water channels, law enforcement testing of sewage outlets, spot checks of water quality at the end of water supply plant pipelines, emergency monitoring of sudden water pollution incidents, on-site water quality inspection of food and beverage enterprises, and on-site measurement of scientific research sampling in universities.

Featured Applications

  • Environmental law enforcement inspection: rapid color law enforcement testing at sewage outlets and river sites.
  • On site inspection of water affairs: spot checks on the quality of water entering and leaving the water supply network and water plants.
  • Emergency pollution monitoring: rapid color screening at the scene of sudden water pollution incidents.
  • On site self inspection of enterprises: Daily self inspection of wastewater discharge outlets in printing and dyeing and chemical plant areas.
  • Food and beverage quality inspection: on-site color testing of production water and finished beverages.
  • Research field sampling: on-site color measurement of outdoor water samples from universities and research institutes.

Standard Configuration

DGB-421 portable water quality colorimeter host, colorimetric bottle, 5V power adapter, USB power cord, USB communication cable, AA (size 5) alkaline battery, user manual, product certificate.

Technical Support

It adopts platinum cobalt standard colorimetric method, which is fully in line with the standard inspection method of drinking water GB5750.4-2006. The test results are authoritative and dependable, and can be utilized as useful data reference for site law enforcement and daily monitoring.

How many sets of measurement data can be stored? A: Up to 200 sets of measurement data can be stored, in conformity with GLP requirements, including measurement value, time, operator number and other information; Connect to the computer through the USB connection cable, then export data for easy organizing and analysis in the future.

1 PCU = 1 degree = 1 Hazen = 1 Pt Co = 1 milligram of platinum/liter, the three quantities are perfectly comparable, but the usual designations in different sectors are different. The device reads out directly in PCU units and is therefore ready for use.

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The Sino Inst DGB-421 portable water quality colorimeter relies on mature platinum cobalt standard colorimetric technology, meets national standard testing requirements, does not require reagents, is easy to operate, IP65 waterproof and dustproof with dual power supply mode, and can fully adapt to various outdoor on-site colorimetric testing scenarios. It is an ideal portable water quality analysis tool for environmental law enforcement, water inspection, emergency monitoring, and enterprise self inspection.

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