Hanna Marine Salinity Tester

HI98319 measures the conductivity of natural and artificial seawater using an amperometric graphite sensor. The instrument converts the conductivity measurement into the selected salinity unit and simultaneously displays water temperature.

The graphite sensor reduces polarisation effects and does not oxidise like metallic sensing pins. An exposed temperature sensor provides fast response, while automatic temperature compensation accounts for conductivity changes caused by water temperature.

Key features

• Digital salinity and temperature tester
• Designed for marine and reef aquariums
• Displays ppt, PSU or specific gravity
• Salinity range: 0.0–70.0 ppt
• PSU range: 0.0–70.0 PSU
• Specific-gravity range: 1.000–1.041
• Resolution: 0.1 ppt, 0.1 PSU or 0.001 S.G.
• Automatic temperature compensation
• Temperature range: 0.0–50.0 °C
• Fast exposed temperature sensor
• Amperometric graphite conductivity sensor
• Automatic single-point calibration
• Automatic recognition of 35.00 ppt standard
• Stability indicator
• Low-battery indicator
• Waterproof and designed to float
• Selectable automatic shut-off
• Approximately 100 hours of battery life
• Storage case and four calibration sachets included

Technical information

• Product: Hanna Marine Salinity Tester
• Model: HI98319
• Salinity range: 0.0–70.0 ppt
• Salinity resolution: 0.1 ppt
• Accuracy from 0.0 to 40.0 ppt: ±1.0 ppt
• Accuracy above 40.0 ppt: ±2.0 ppt
• PSU range: 0.0–70.0 PSU
• S.G. range: 1.000–1.041
• S.G. accuracy: ±0.001
• Temperature range: 0.0–50.0 °C
• Temperature accuracy: ±0.5 °C
• Automatic temperature compensation: 5–50 °C
• Calibration: automatic at 35.00 ppt
• Battery: CR2032
• Battery life: approximately 100 hours
• Dimensions: approximately 160 × 40 × 17 mm
• Weight: approximately 75 g

Package contents

• Hanna HI98319 tester
• Protective cap
• Four 35.00 ppt calibration-standard sachets
• CR2032 battery
• Plastic storage case
• Quality certificate
• Instruction manual

Directions

1. Calibrate the tester with fresh 35.00 ppt calibration standard.
2. Rinse the sensor with a small amount of the water to be measured.
3. Switch on the tester and select ppt, PSU or S.G.
4. Immerse the sensor to the correct depth.
5. Move the tester gently to release trapped air bubbles.
6. Wait for the temperature and salinity reading to stabilise.
7. Record the result after the stability indicator appears.
8. Rinse the sensor with clean water immediately after use.
9. Do not allow saltwater to dry on the graphite sensor.
10. Replace the protective cap and store the tester in its case.