General description specifications – Hanna Instruments HI 96821 User Manual
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GENERAL DESCRIPTION
SPECIFICATIONS
Temperature Compensation:
Automatic between 10 and 40 °C (50 - 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 96821 Digital Refractometer is a rugged portable, water resistant device that benefits from
Hanna’s years of experience as a manufacturer of analytical instruments.
The HI 96821 is an optical instrument that employs the measurement of the refractive index to
determine sodium chloride concentration in aqueous solutions used in food preparation. It is not
intended for sea water salinity measurements. The measurement of refractive index is simple and
quick and provides the user an accepted method for NaCl analysis. Samples are measured after a
simple user calibration with deionized or distilled water. Within seconds the instrument measures
the refractive index of the solution. The digital refractometer eliminates the uncertainty associated
with mechanical refractometers and is easily portable for measurements where you need them.
The instrument utilizes internationally recognized references for unit conversion and temperature
compensation. It can display the measurement of NaCl concentration 4 different ways: g/100 g,
g/100 mL, Specific Gravity, and °Baumé.
Temperature (in °C or °F) is displayed simultaneously with the measurement (on 3 of the ranges)
on the large dual level display along with icons for Low Power and other helpful message codes.
Key features include:
• Waterproof models offers 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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