Hanna TDS Meter DiST 1 HI98301 – Total Dissolved Solids Meter with Graphite Electrode

Hanna DiST 1 HI98301 TDS Meter – Total Dissolved Solids Meter with Graphite Electrode

The Hanna Instruments DiST 1 HI98301 is a pocket-sized total dissolved solids meter that displays the salt concentration of irrigation water and nutrient solutions in ppm or ppt. Its non-oxidizing graphite amperometric electrode provides more repeatable readings and a much longer service life than conventional metal sensors. It features automatic one-point calibration and automatic temperature compensation, and comes ready to use.

Key Features

• Non-oxidizing graphite electrode: greater reading repeatability and significantly longer durability than metal sensors.
• Dual TDS scale: 0 to 2000 ppm and 0.00 to 10.00 ppt, for waters with widely different concentrations.
• Automatic calibration: one-point calibration with HI70032 or HI70038 standard solutions.
• Automatic temperature compensation: 0 to 50 °C, so readings are comparable at any time of day.
• Large display: clearly legible values even in low light in the irrigation room.
• 250-hour battery life: with a single CR2032 lithium battery.

Technical Specifications

• TDS range: 0–2000 ppm (mg/L) and 0.00–10.00 ppt (g/L)
• TDS resolution: 1 ppm / 0.01 ppt
• TDS accuracy: ±2% (at 25 °C)
• TDS factor: 0.5
• Calibration: automatic one-point calibration with HI70032 (1382 ppm) or HI70038 (6.44 ppt) solutions
• Temperature range: 0.0–50.0 °C
• Temperature resolution: 0.1 °C
• Temperature accuracy: ±0.5 °C
• Temperature compensation: automatic 0 to 50 °C
• Electrode: non-oxidizing amperometric graphite electrode, with greater repeatability
• Battery: CR2032 lithium, approximately 250 hours of use
• Display: large, easy to read
• Weight: 75 g

Package Contents

• DiST 1 HI98301 TDS Meter
• CR2032 battery
• 4 calibration solution packets
• Protective and storage cap
• Instruction manual
• Certificate of quality

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Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.

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1. Remove the protective cap and rinse the graphite electrode with clean water before first use.
2. Turn on the meter and immerse it in the HI70032 or HI70038 calibration solution until the sensors are covered.
3. Run the automatic 1-point calibration and wait for the device to confirm the value.
4. Rinse the electrode and immerse it in the irrigation water or nutrient solution, removing it gently.
5. Wait for the reading to stabilize and record the TDS value in ppm or ppt along with the temperature.
6. Rinse the electrode with clean water, dry it, and replace the protective cap for storage.