HACH DR3900 Laboratory Spectrophotometer for Water Analysis | Benchtop Visible Spectrum Spectrophotometer | 320–1100 nm | Multiple Water Quality Testing Methods

The HACH DR3900 is a benchtop visible-spectrum spectrophotometer designed for routine water and wastewater analysis in laboratories. It features a colour touchscreen, a reference-beam optical system, automatic wavelength selection and a wide range of pre-programmed analytical methods. It supports the measurement of parameters such as chemical oxygen demand (COD), ammonium, phosphate and nitrate using compatible Hach test methods and reagents. 

Key features and benefits

• Wide wavelength range: 320–1100 nm for visible-spectrum analytical applications.

• Pre-programmed methods: More than 220 analytical methods for routine laboratory water testing.

• Colour touchscreen: 7-inch TFT display for convenient operation.

• Reference-beam optical system: Designed for reliable photometric measurements.

• Multiple measurement modes: Absorbance, transmittance and concentration, plus scanning.

• Automatic wavelength selection and calibration: Simplifies routine operation.

• Data storage: Stores up to 2,000 measured results with associated details.

• Multiple connectivity options: USB Type-A, USB Type-B and Ethernet interfaces.

• Flexible sample handling: Compatible with specified rectangular and round sample cells.

• Optional RFID configuration: An RFID-enabled version may be available; confirm the exact model before ordering.

  
  

Technical specifications

Applications

The HACH DR3900 is suitable for routine analytical testing in:

• Drinking water treatment plants

• Wastewater treatment plants (ETPs and STPs)

• Environmental testing laboratories

• Industrial water and process water laboratories

• Chemical and pharmaceutical laboratories

• Food and beverage quality-control laboratories

• Municipal water quality monitoring

• Research and educational laboratories

• Quality assurance and quality control (QA/QC) laboratories

Parameters that can be analysed

Depending on the selected method, compatible reagents and measurement range, the DR3900 can be used for testing parameters including:

• Chemical Oxygen Demand (COD)

• Ammonium

• Nitrate

• Phosphate

• Chlorine and other disinfectant-related parameters

• Alkalinity

• Aluminium

• Chloride and other water quality parameters supported by compatible methods

Standard accessories and package contents

The exact package depends on the selected configuration and supplier. The published Hach specification for the version without RFID lists the following included items:

• HACH DR3900 spectrophotometer

• External benchtop power supply

• Power cords for 115 V and 230 V

• Adapter A for 1-inch round and 1 cm square cells

• Matched pair of 1-inch square glass sample cells

• Light shield

• Dust cover

• Printed basic user manual