Hanna HI705 Silica Checker

Hanna HI705 Silica Checker

The Hanna HI705 Silica Checker  is a compact, portable digital colorimeter designed to accurately measure low concentrations of silica in water. Ideal for water quality testing in environmental monitoring, industrial processes, and laboratory use, the HI705 offers a highly accurate alternative to traditional chemical test kits. Its simple four-step testing process provides quick and consistent readings without the complexity of conventional spectrophotometers.

Using an adaptation of the ASTM D859 heteropoly blue method, the HI705 produces a blue color reaction when silica reacts with the reagent. The device then measures the intensity of the color using a LED light source and silicon photocell, displaying the result in parts per million (ppm) on a large digital screen. Lightweight, easy to use, and supplied with starter reagents, the HI705 is perfect for professionals and non-specialists alike.

Features

• Low Range Silica Measurement (0.00 to 2.00 ppm)
  Specifically designed for low-level silica detection in various water samples, ensuring precision where it matters most.

• Accurate and Reliable Results
  Offers a resolution of 0.01 ppm with an accuracy of ±0.03 ppm ±3% of reading, ideal for detailed monitoring.

• Palm-Sized Portable Design
  Compact and lightweight (64g), making it ideal for field use or on-site water analysis.

• Digital LCD Display
  Provides immediate and easy-to-read results, removing subjectivity from color comparison charts.

• One-Button Operation
  User-friendly interface suitable for both technical and non-technical users.

• Automatic Shut-Off
  Conserves battery life by powering down after 10 minutes of inactivity.

• Standard Methodology
  Uses the widely accepted ASTM D859 heteropoly blue method, ensuring trustworthy, standardized results.

• Starter Reagents Included
  Comes with reagents for the first 6 tests; additional reagent sets are available for extended testing.

Applications

The HI705 Silica Checker is well-suited for any application where low levels of silica must be accurately monitored:

• Environmental Water Monitoring
  Essential for surface water, groundwater, and treated wastewater analysis.

• Boiler and Cooling Water Systems
  Monitors silica levels to prevent scaling and ensure system efficiency.

• Drinking Water Quality Testing
  Helps maintain compliance with water safety and quality standards.

• Industrial and Laboratory Use
  Ideal for QA/QC processes and experimental studies involving silica measurement.

• Aquaculture and Aquarium Systems
  Assures optimal water chemistry for aquatic life where silica impacts algae growth.

Specifications

• Model: HI705

• Measurement Range: 0.00 to 2.00 ppm (mg/L)

• Resolution: 0.01 ppm

• Accuracy @ 25°C: ±0.03 ppm ±3% of reading

• Method: Adaptation of ASTM D859 (heteropoly blue method)

• Light Source: LED @ 610 nm

• Light Detector: Silicon photocell

• Auto-Off: After 10 minutes of non-use

• Operating Temperature: 0 to 50°C (32 to 122°F)

• Operating Humidity: Max 95% RH, non-condensing

• Battery Type: One 1.5V AAA battery

• Dimensions: 86 × 61 × 37.5 mm

• Weight: 64 g

• Included in Box:

  • HI705 Checker HC

  • Reagents for 6 tests

  • Sample cuvettes and caps

  • AAA battery

  • Instruction manual