PORTABLE WATER QUALITY ANALYSIS
Hach DR1900 Portable Spectrophotometer Review
The Hach DR1900 Portable Spectrophotometer is a field-ready VIS spectrophotometer built for water quality professionals who need reliable measurements outside the lab. With a 340–800 nm wavelength range, multiple measurement modes, rugged IP67 protection, and support for many preprogrammed methods, it is designed to deliver trusted analytical performance for routine and compliance-driven water testing.
Quick Verdict
The DR1900 is a strong choice for water and wastewater professionals who need a compact spectrophotometer for field and lab use. It combines portability, a wide wavelength range, rugged construction, and Hach’s method library into one practical platform.
Product at a Glance
| Item | Details |
|---|---|
| Product Name | DR1900 Portable Spectrophotometer |
| Product Number | DR1900-01H |
| Measurement Modes | Transmittance, Absorbance, Concentration |
| Wavelength Range | 340 to 800 nm |
| Ingress Protection | IP67 with sample cell cover closed |
| Weight | 1.5 kg (3.3 lb) |
What Is the Hach DR1900?
The Hach DR1900 is a portable visible-range spectrophotometer for water analysis. It is intended to support measurements in the field, in QA/QC laboratories, and in water treatment environments where quick and dependable testing is needed. Hach positions the DR1900 as a compact instrument that delivers lab-like accuracy while remaining easy to carry and operate on site.
In practical terms, this means technicians can use it for routine water quality checks, process monitoring, and compliance-related analysis without needing a full benchtop setup. Its support for preprogrammed methods and user methods also makes it adaptable across different test programs and site requirements.
Key Features
340–800 nm Wavelength Range
The optical range supports a broad set of water testing methods and helps provide accuracy typically associated with laboratory instruments.
Multiple Measurement Modes
Users can measure transmittance, absorbance, and concentration depending on the test method and reporting requirement.
Rugged IP67 Design
With the sample cell cover closed, the enclosure is rated IP67, helping protect the instrument during field work and demanding site conditions.
Preloaded and User Methods
According to Hach, the DR1900 offers more preprogrammed methods than any other portable spectrophotometer in its class, plus the ability to create custom methods.
Portable and Lightweight
At 1.5 kg, the DR1900 is designed for mobility, making it easier for field technicians to carry between sampling points.
Water Analysis Handbook Support
Hach’s Water Analysis Handbook and test procedure resources help users select and run methods with confidence.
Technical Specifications
| Specification | Value |
|---|---|
| Measurement Modes | Transmittance (%), Absorbance (Abs), Concentration (Conc) |
| Wavelength Range | 340 to 800 nm |
| Light Source | Xenon flash |
| Photometric Measuring Range | ±3.0 Abs |
| Wavelength Accuracy | ±2 nm |
| Spectral Bandwidth | 5 nm |
| Photometric Accuracy | 3 mAbs at 0.0 to 0.5 Abs; 1% at 0.50 to 2.0 Abs |
| Photometric Linearity | <0.5% to 2 Abs; ≤1% at >2 Abs with neutral glass at 546 nm |
| Wavelength Selection | Automatic, based on method selection |
| Stray Light | <0.5% T at 340 nm with NaNO2 |
| Wavelength Resolution | 1 nm |
| Repeatability | ±0.1 nm |
| User Programs | 50 |
| Data Logger | 500 measured values |
| Dimensions (W × D × H) | 178 × 261 × 98 mm (7.0 × 10.3 × 3.8 in.) |
| Weight | 1.5 kg (3.3 lb) |
| Ingress Protection | IP67 with sample cell cover closed |
| Operating Temperature | 10 to 40 °C, max 80% RH non-condensing |
| Storage Temperature | –30 to 60 °C, max 80% RH non-condensing |
| Internal Power | 4× AA alkaline or 4× NiMH rechargeable batteries |
| External Power | 110–240 VAC, 50/60 Hz (optional module needed) |
| Interface | USB mini (optional module needed) |
| Sample Cells Supported | 10×10 mm, 1-inch rectangular, 13 mm / 16 mm / 1-inch round, 1 cm / 10 mL, flow-through cell |
| Certification | CE |
Applications
Benefits of Using the DR1900
- Lightweight, compact design makes it easy to transport to field sites.
- Supports more preprogrammed methods and custom method creation for flexibility.
- Wide wavelength range improves suitability for water analysis workflows.
- IP67 protection helps the instrument withstand demanding environments.
- Simple interface and multiple vial sizes improve everyday usability.
Pros
- Portable and lightweight
- 340–800 nm wavelength range
- IP67 enclosure rating
- Multiple measurement modes
- Broad support for methods and vial sizes
Cons
- Optional module required for external power
- Optional module required for USB mini interface
- Not as full-featured as larger benchtop laboratory systems
What’s Included in the Box
The source content confirms the DR1900 product and its optional modules, but it does not provide a complete boxed accessory list. For accuracy, only verified content should be published here. If you have the official packing list or order configuration, this section can be expanded safely.
Buying Guidance
Choose the DR1900 if your work involves field water analysis, plant monitoring, municipal water testing, nutrient screening, or QA/QC tasks where portability and reliable optical measurement matter. It is especially suitable for users who want a rugged, easy-to-carry instrument with a broad method base rather than a large benchtop spectrophotometer.
Frequently Asked Questions
It measures transmittance, absorbance, and concentration for water analysis methods.
Yes. It is compact, lightweight, and has IP67 protection with the sample cell cover closed.
The verified wavelength range is 340 to 800 nm.
The data logger supports 500 measured values.
Yes. It supports 4× AA alkaline or 4× NiMH rechargeable batteries.
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About Maya
I'm Maya, a specialized content writer and SEO expert with over 5 years of experience in creating technical content focused on industrial equipment, precision instruments, and measurement technologies.
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