Laboratory Spectrophotometer for water analysis

The DR4900 is engineered to meet the evolving demands of modern water analysis.

• Modern User Interface: Redesigned user experience with large results, clear errors, and easy access to sample ID information
• New Temperature and Turbidity Diagnostics: Modern diagnostic features ensure that your test vial results are not impacted by the temperature of your sample – improving your operational efficiency and compliance reporting
• Four simultaneous timers: Optimise your workflows and never miss a step
• Ten measurements on barcoded cuvettes:Make sure you are right every time and catch errors that impact results

Built on the trusted legacy of the DR3900, the DR4900 Spectrophotometer increases analytical reliability and strengthens your laboratory’s operational performance. Engineered for routine and high‑throughput water analysis, the instrument combines stable optics, automated verification functions, and streamlined workflows to deliver consistent, traceable results across a wide range of parameters.

Accurate, reproducible data is fundamental for laboratory oversight. The DR4900 reduces sources of analytical variability by integrating diagnostic controls, guided workflows, and an interface designed to standardize testing steps. The result is fewer repeat analyses, reduced operator‑dependent variation, and better confidence in day‑to‑day results.

Technical Innovations That Protect Data Integrity

• 10-inch High‑Resolution Touchscreen - The large, full‑color display enables rapid navigation of analytical steps, clear visualization of spectral data, and fast review of sample information. The modern UI is optimized for multi‑operator labs, reducing training time and minimizing navigation errors.
• Integrated Turbidity Diagnostics - Optical monitoring verifies whether sample turbidity may interfere with TNTplus vial measurements. The system alerts the operator when filtration or additional sample preparation is recommended, helping maintain result accuracy in samples with suspended solids.
• Temperature Monitoring for Vial Tests - An integrated temperature sensor evaluates vial temperature prior to measurement. This helps ensure that exothermic reactions or insufficient equilibration times do not impact analytical output, particularly important for temperature‑sensitive colorimetric methods.

With more than 250 pre‑programmed Hach methods, including a broad range of regulatory‑relevant parameters, the DR4900 supports standardized workflows and consistent method execution. Its robust optical design and built‑in diagnostics help maintain instrument performance over time, giving you greater oversight and control over daily testing operations.

Trust the DR4900 Lab Spectrophotometerto deliver reliable, repeatable water quality data while improving analytical efficiency across your laboratory.

DR4900 options to fit your workflow

Two versions of the DR4900 are available: one without an external camera or with an external camera to enable Smart Workflow features including Certificate of Analysis QR code scanning and Sample ID Text Recognition.

• Without Camera - Delivers the full DR4900 analytical performance and error prevention features for routine lab workflows
• With Camera - Includes all DR4900 performance features plus an external camera that enables Smart Workflow capabilities such as Certificate of Analysis QR code scanning and Sample ID Text Recognition - reducing manual data entry and supporting documentation tracking directly at the instrument.