Digital Refractometer for Seawater Analysis – HI96822

Designed for seawater salinity analysis

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The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G. (20/20)). The instrument’s high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for temperature variations and displayed within a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample.

The HI96822 Digital Refractometer eliminates the uncertainty associated with mechanical refractometers by measuring the refractive index to determine the salinity of natural and artificial seawater including brackish, ocean water or saltwater aquarium. The instrument converts the refractive index of a sample to PSU, ppt and specific gravity. These conversions are based on respected scientific publications using the physical properties of seawater (not sodium chloride). The HI96822 is an easy to use tool for measuring salinity in natural and artificial seawater whether in the field, lab or at home.

Features

  • Designed for seawater salinity analysis (not NaCl)
  • Automatic Temperature Compensation
  • High accuracy measurements displayed as PSU, ppt and specific gravity
  • Sample size as small as 2 metric drops (100 μl)
  • Sealed stainless steel well with high-grade optical prism made of flint glass
  • Fast 1.5 second response time for temperature compensated readings

 Specifications 

Salinity (PSU) Range 0 to 50 PSU
Salinity (PSU) Resolution 1 PSU
Salinity (PSU) Accuracy ±2 PSU
Salinity Range 0 to 150 ppt
Salinity Resolution (ppt) 1 ppt
Salinity Accuracy (ppt) ±2 ppt
Specific Gravity Range 1.000 to 1.114 Specific Gravity (20/20)
Specific Gravity Resolution 0.001 Specific Gravity (20/20)
Specific Gravity Accuracy ±0.002 Specific Gravity (20/20)
Temperature Range 0 to 80°C (32 to 176°F)
Temperature Resolution 0.1°C (0.1°F)
Temperature Accuracy ±0.3 °C (±0.5 °F)
Temperature Compensation automatic between 0 and 40°C (32 to 104°F)
Automatic Shut-Off after three minutes of inactivity
Battery Type/Life 9V / approximately 5000 readings
Dimensions 192 x 102 x 67 mm (7.6 x 4.01 x 2.6”)
Weight 420 g (14.8 oz.)
Refractometer Light Source yellow LED
Minimum Sample Volume 100 μL (to cover prism totally)
Sample Cell stainless steel ring and flint glass prism
Measurement Time approximately 1.5 seconds
   
Notes Enclosure Rating: IP65

 

Ordering Information

HI96822 is supplied with battery and instruction manual

 

hi96822-manual

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