General description specifications – Hanna Instruments HI 96831 User Manual
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GENERAL DESCRIPTION
SPECIFICATIONS
Temperature Compensation:
Automatic between 0 and 40 °C (32 - 104 °F)
Measurement Time:
Approximately 1.5 seconds
Minimum Sample Volume:
100 μL (cover prism totally)
Light Source:
Yellow LED
Sample Cell:
Stainless Steel ring and flint glass prism
Case Material:
ABS
Enclosure Rating:
IP 65
Battery Type / Life:
1 X 9V / 5000 readings
Auto-Off:
After 3 minutes of non-use
Dimensions:
19.2(W) x 10.2(D) x 6.7(H) cm
Mass:
420 g
The HI 96831 Digital Refractometer is a rugged portable, water resistant device that utilizes the
measurement of refractive index to determine the % volume and freezing point of ethylene glycol
based coolants or antifreeze.
The HI 96831 device benefits from Hanna’s years of experience as a manufacturer of analytical
instruments. The digital refractometer eliminates the uncertainty associated with mechanical
refractometers and is easily portable for use in the field to optimize your cooling system.
The HI 96831 refractometer is an optical device that is simple and quick to use. Samples are
measured after a simple user calibration with distilled or deionized water. Within seconds, the
refractive index and temperature are measured and converted into one of two measurement units;
% Volume or Freezing Point. The instrument utilizes internationally recognized references for unit
conversion and temperature compensation for ethylene glycol solutions (e.g. CRC Handbook of
Chemistry and Physics, 87
th
Edition).
The temperature (in °C or °F) is also displayed on the large dual level display along with helpful
message codes.
Key features include:
• IP65 waterproof protection
• Automatic Temperature Compensation (ATC)
• Battery operation with Low Power indicator (BEPS)
• Automatically turns off after 3 minutes of non-use
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