The Hanna HI97735 Portable Water Hardness Photometer is an advanced, high-precision instrument for measuring total water hardness across low, medium, and high ranges with exceptional accuracy. Designed by Hanna Instruments, this unit combines innovative optical technology with a user-friendly interface, ensuring fast, consistent, and reliable results every time.

Using the EPA-recommended Method 130.1, the HI97735 guarantees accurate and standardized testing for drinking water, environmental samples, and industrial systems. With its compact design and battery-powered portability, this photometer is a trusted tool for professionals in water quality analysis, research laboratories, and field monitoring.

✅ Key Features of the Water Hardness Photometer HI97735

• Three Measurement Ranges:
  • Low Range (LR): 0–250 mg/L (ppm)
  • Medium Range (MR): 200–500 mg/L (ppm)
  • High Range (HR): 400–750 mg/L (ppm)
• Resolution: 1 mg/L across all ranges

• Accuracy:

  • LR: ±5 mg/L ±4% of reading
  • MR: ±7 mg/L ±3% of reading
  • HR: ±10 mg/L ±2% of reading
• Measurement Method: Adaptation of EPA Method 130.1
• Display: Large backlit LCD with easy-to-read digital interface
• Calibration: CAL Check™ validation ensures consistent performance
• Light Source: Energy-efficient LED for precise optical readings
• Data Logging: Stores up to 50 readings with timestamps
• Power Supply: Battery-operated for on-site convenience
• Carrying Case: Includes reagents, cuvettes, and all essential accessories
• Certification: ISO 9001 Quality Compliant

🔬 Applications

Because of its accuracy and portability, the HI97735 Water Hardness Photometer serves diverse laboratory and field applications:

• Drinking Water Analysis: Ensures hardness levels are within safety standards.
• Industrial Water Systems: Monitors boiler and cooling tower conditions.
• Environmental Research: Measures hardness in surface and groundwater.
• Wastewater Treatment: Supports accurate dosing and chemical balance.
• Educational Institutions: Perfect for classroom and laboratory demonstrations.

⚙️ Technical Specifications

💡 Why Buy It?

The Hanna HI97735 isn’t just another water testing device — it’s a complete professional-grade solution built for reliability and convenience. Here’s why it’s a top choice among water quality experts:

1. Triple-Range Versatility: Accurately measures hardness across low, medium, and high concentrations — ideal for multiple industries.
2. EPA-Approved Accuracy: Uses the same analytical method trusted by laboratories worldwide.
3. Portable and Rugged: Compact, battery-powered design ensures easy field testing without sacrificing precision.
4. Quick Calibration: The built-in CAL Check™ system provides instant verification and eliminates guesswork.
5. Data Storage for Traceability: Saves up to 50 results with timestamps, ensuring reliable data tracking.
6. Trusted Global Brand: Hanna Instruments is a world leader in analytical instrumentation — known for accuracy, innovation, and durability.
7. All-in-One Kit: Comes with reagents, cuvettes, and accessories neatly organized in a sturdy carrying case for hassle-free operation.

In short, this photometer saves time, simplifies testing, and ensures laboratory-grade accuracy wherever you go.

⚠️ Safety & Maintenance

To maintain accuracy and extend the life of your instrument:

• Always clean and dry cuvettes before testing.
• Calibrate regularly with Hanna CAL Check™ standards.
• Store reagents in a cool, dry environment.
• Replace batteries when indicated to prevent data loss.
• Proper maintenance ensures consistent, long-term performance.

❓ Frequently Asked Questions (FAQ)

Q1: What does the HI97735 measure?
A1: It measures total hardness in water expressed in mg/L (ppm) as CaCO₃ across low, medium, and high ranges.

Q2: Is the HI97735 suitable for field use?
A2: Yes, it’s fully portable and powered by standard AA batteries, making it ideal for on-site analysis.

Q3: Does it comply with international standards?
A3: Yes, it follows the EPA-recommended Method 130.1, ensuring laboratory-grade accuracy.

Q4: What comes in the package?
A4: The kit includes the photometer, reagents, sample cuvettes, batteries, and a protective carrying case.

Q5: Who should use this device?
A5: Professionals in water treatment, environmental research, industrial process monitoring, and academic labs will benefit the most from its precision and convenience.

Buy the Hanna HI97735 Portable Water Hardness Photometer for low-, medium-, and high-range testing. Features CAL Check™ validation, EPA Method 130.1 compliance, and on-site portability. Ideal for laboratory and industrial water analysis.