HACH Portable Electronic Colorimeter Ozone Tester Water Quality Detector for Residual Chlorine Total Chlorine Chlorine Dioxide

Description

The Hach DR300 Portable Pocket Colorimeter represents the benchmark in field-ready photometry, engineered specifically for high-accuracy determination of Residual Chlorine, Total Chlorine, Chlorine Dioxide, and Ozone in demanding industrial and municipal water treatment environments. This highly calibrated optoelectronic instrument ensures laboratory-grade measurement repeatability in a rugged, IP67-rated mobile form factor.

Technical Specifications and Parameter Matrix
Manufacturer: Hach Company
Model Series: DR300
Optical System: LED light source with silicon photodetector
Measurement Parameters: Residual Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone
Wavelength: 528 nm plus or minus 2 nm
Photometric Linear Range: 0.1 to 10.0 mg/L Cl2 (High Range), 0.02 to 2.00 mg/L Cl2 (Low Range)
Enclosure Rating: IP67 waterproof (dust-tight and submersible to 1 meter for 30 minutes)
Power Source: 4 AAA Alkaline batteries
Battery Life: Up to 5000 measurements under standard operational conditions
Display: Custom liquid crystal display with integrated backlight
Sample Cell Compatibility: 1 inch (25 mm) round glass vials
Operating Temperature: 0 to 50 degrees Celsius (32 to 122 degrees Fahrenheit)
Operating Humidity: Maximum 90 percent relative humidity, non-condensing
Instrument Dimensions: 34 mm x 69 mm x 157 mm
Weight: 0.25 kg (including batteries)
Certifications and Compliance: CE Declaration of Conformity, WEEE

Original Engineering and Technical Compatibility
This instrument utilizes pre-programmed calibration curves matching Hach Chemistry reagents (DPD method). It integrates seamlessly with historical Hach laboratory database structures, allowing direct comparison of field results with benchtop spectrophotometers without statistical offset. The instrument optical path is factory-sealed to maintain calibration integrity over extended deployment lifecycles under extreme environmental conditions. Procurement through authorized B2B channels ensures standard industry Lead Time and guaranteed access to authentic replacement reagent kits and certified verification standards.

Industrial Application Scenario
In municipal drinking water treatment facilities and industrial cooling tower loops, maintaining the precise dosing concentration of sanitizing agents is critical to preventing microbial bio-fouling while ensuring environmental discharge compliance. Under-dosing leads to system-wide biological contamination, whereas over-dosing causes accelerated galvanic corrosion of high-value heat exchanger piping and piping systems. The Hach DR300 colorimeter solves this optimization problem by permitting operators to execute immediate, highly accurate on-site verification of ozone and chlorine residuals at chemical injection points. This prompt diagnostic capability eliminates holding-time decay issues associated with transporting sensitive samples to remote testing laboratories, allowing real-time SCADA parameter tuning.

Key Attributes
Place of origin: United States
Customized support: OEM, ODM
Brand name: HACH
Warranty: 1 years
Model number: DR300
Absorbance: 0 - 2.5 Abs
Data Logger: Last 50 measurements
Detector: Silicon photodiode
Display: LCD with backlight
Enclosure Rating: IP67, waterproof at 1 m for 30 minutes
Power: Electronic

Packaging and Delivery
Selling Units: Single item
Single package size: 35X30X19 cm
Single gross weight: 2.500 kg