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Hanna Instruments HI98703-02 Turbidity (EPA) Portable Meter

The HI98703 Turbidity Portable Meter is a high-precision instrument for measuring water turbidity, particularly excelling in the low NTU range. Its advanced optical system with tungsten lamp, 25 mm round cuvettes, and dual 90°/180° detectors minimizes stray light and color interference for highly accurate readings. The meter is EPA-compliant and calibrated with AMCO AEPA-1 primary standards, offering traceable and reliable results. With backlit LCD, data logging for 200 readings, Fast Tracker™ system, and USB/RS232 connectivity, it is ideal for both field and laboratory applications.

  • High Accuracy & Repeatability: Turbidity ±2% of reading + 0.02 NTU; stray light <0.02 NTU
  • EPA Compliant: Meets USEPA Method 180.1 and Standard Method 2130 B
  • Multiple Measurement Modes: Normal, average, or continuous with ratio nephelometric method
  • Field-Ready: Fast Tracker™ Tag Identification, USB/RS232 data transfer, rugged carrying case

Description

The HI98703 is a portable, precision meter designed for turbidity measurements in drinking water and environmental monitoring. Its state-of-the-art optical system uses a tungsten filament lamp and 25 mm round cuvettes to reduce stray light and color interferences, ensuring highly accurate and repeatable readings. The dual detectors at 90° and 180° allow the meter to operate in ratio nephelometric mode, providing reliable measurements across the full turbidity range of 0–1000 NTU. Calibration is performed using AMCO AEPA-1 primary standards, which are non-toxic, reusable, and NIST-traceable, guaranteeing long-term performance and traceability.

The HI98703 also emphasizes usability in field and lab environments. A backlit LCD guides users through measurement and calibration steps, while the Fast Tracker™ system allows tagging of measurement locations and timestamps using iButton® tags. Up to 200 readings can be stored internally and transferred to a PC via USB or RS232for further analysis. Its rugged design, battery or AC power options, and complete GLP data recording make the HI98703 suitable for water treatment facilities, wastewater monitoring, and environmental field studies.

Features

  • Measurement Parameter: Turbidity (0–1000 NTU)
  • Measurement Modes: Normal, average, continuous; ratio nephelometric method (90° & 180°)
  • Optical System: Tungsten filament lamp, 25 mm round optical cuvettes, dual detectors
  • Accuracy: ±2% of reading + 0.02 NTU; Stray light <0.02 NTU
  • EPA Compliance: USEPA Method 180.1, Standard Method 2130 B
  • Calibration: 2, 3, or 4-point with AMCO AEPA-1 primary standards
  • Fast Tracker™: Tag Identification System for time/location-stamped readings using iButton® tags
  • GLP Data: Traceable calibration with date, time, and calibration points
  • Data Logging: 200 records internal memory; recallable anytime
  • Connectivity: USB or RS232 to PC for storage and analysis
  • Display: 60 x 90 mm backlit LCD
  • Power: 4 AA batteries or AC adapter; auto-off after 15 min
  • Environment: 0–50°C (32–122°F), 0–95% RH non-condensing
  • Accessories: Sample cuvettes, calibration cuvettes, silicone oil, wiping cloth, batteries, AC adapter, instruction manual, rugged carrying case

Specifications

SKU HI98703-02
Product Name Turbidity (EPA) Portable Meter – HI98703
Quote Required Yes
Turbidity Range 0.00 to 9.99; 10.0 to 99.9; 100 to 1000 NTU
Turbidity Resolution 0.01; 0.1; 1 NTU
Turbidity Accuracy ±2% of reading plus 0.02 NTU
Turbidity Repeatability ±1% of reading or 0.02 NTU, whichever is greater
Turbidity Stray Light < 0.02 NTU
Turbidity Calibration two, three, or four-point calibration
Turbidity Measuring Method ratio nephelometric method (90° & 180°). Adaptation of the USEPA Method 180.1 and Standard Method 2130 B
Turbidity Measuring Modes normal, average, continuous
Turbidity Light Source tungsten filament lamp
Turbidity Light Detector silicon photocell
Logging Memory 200 records
Connectivity USB or RS232
Automatic Shut-Off auto-off after 15 minutes of non-use
Display 60 x 90 mm backlit LCD
Battery Type/Life 4 (1.5V) AA alkaline batteries
Power Supply 4 (1.5V) AA alkaline batteries or AC adapter
Environment 0 to 50°C (32 to 122°F), RH max 95% non-condensing
Dimensions 224 x 87 x 77 mm (8.8 x 3.4 x 3.0”)
Weight 512 g (18 oz.)
Ordering Information HI98703 is supplied with sample cuvettes and caps (5), HI98703-11 calibration cuvettes, silicone oil, cuvette wiping cloth, batteries, AC adapter, instruction manual, and rugged carrying case.

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