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Range

g/100 g:

 0.0 to 28.0

g/100 mL:

 0.0 to 34.0

Specific Gravity:

 1.000 to 1.216

˚Baumé:

 0.0 to 26.0

˚C (˚F): 

0.0 to 80.0 ˚C   

(32.0 to 176.0 ˚F)

Resolution

g/100 g:

 0.1

g/100 mL:

 0.1 

Specific Gravity:

 0.001

˚Baumé:

 0.1

˚C (˚F):

 0.1 ˚C (0.1 ˚F)

Accuracy

g/100 g:

 ±0.2

g/100 mL:

 ±0.2

Specific Gravity:

 ±0.002

˚Baumé:

 ±0.2

˚C (˚F):

 ±0.3 ˚C (±0.5 ˚F)

Temperature Compensation

Automatic between 10.0 and 40.0 °C  
(50.0 ‑ 104.0 °F)

Measurement Time

Approximately 1.5 seconds

Minimum Sample Volume

100 

µ

L (cover prism totally)

Light Source

Yellow LED

Sample Cell

Stainless Steel ring and flint glass prism

Case Material

ABS

Enclosure Rating

IP65

Battery Type / Life

9V / 5000 readings

Auto‑Off

After 3 minutes of non‑use

Dimensions

192 x 102 x 69 mm (7.6 x 4.1 x 2.7”)

Mass

350 g (12.3 oz)

SPECIFICA

TIONS

Summary of Contents for HI 96821

Page 1: ...HI96821 Refractometer for Sodium Chloride Measurements INSTRUCTION MANUAL ...

Page 2: ... this instrument as well as a precise idea of its versatility If you need additional technical information do not hesitate to e mail us at tech hannainst com or view our worldwide contact list at www hannainst com Dear Customer All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Hanna Instruments Inc Woonsocket Rhode Island 0289...

Page 3: ...ration Functional Description Display Elements Measurement Guidelines Calibration Procedure Measurement Procedure To Change Measurement Unit To Change Temperature Unit Making a Standard Sodium Chloride Solution Battery Replacement Error Messages Accessories 4 5 7 9 11 15 6 8 12 10 16 14 13 17 18 ...

Page 4: ...s occurred contact your local Hanna Instruments Office Each HI96821 instrument is supplied with 9 V battery Instruction manual Plastic pipette Quality Certificate Note Save all packing material until you are sure that the instrument functions correctly A defective instrument must be returned in its original packing PRELIMINARY EXAMINATION ...

Page 5: ...er Within seconds the instrument measures the refractive index of the solution The digital refractometer eliminates the uncertainty associated with mechanical refractometersandiseasilyportableformeasurementswhereyouneedthem Theinstrumentutilizesinternationallyrecognizedreferencesforunitconversion andtemperaturecompensation ItcandisplaythemeasurementofNaClcon centration4differentways g 100g g 100mL...

Page 6: ...avity 0 002 Baumé 0 2 C F 0 3 C 0 5 F Temperature Compensation Automatic between 10 0 and 40 0 C 50 0 104 0 F Measurement Time Approximately 1 5 seconds Minimum Sample Volume 100 µL cover prism totally Light Source Yellow LED Sample Cell StainlessSteelringandflintglassprism Case Material ABS Enclosure Rating IP65 Battery Type Life 9V 5000 readings Auto Off After 3 minutes of non use Dimensions 192...

Page 7: ...tive index there is a critical angle at which an incoming beam of light can no longer refract but will instead be reflected off the interface Thecriticalanglecanbeusedtoeasilycalculatetherefractiveindexaccording to the equation sin θcritical n2 n1 Wheren2 istherefractiveindexofthelower densitymedium n1 istherefractive index of the higher density medium In the HI96821 refractometer light from an LE...

Page 8: ... Display 3 Primary Display 4 READ Key User Measurement 5 ZERO Key User Calibration 6 RANGE Key User Measurement Unit 7 ON OFF 8 Stainless Steel Sample Well and Prism TOP VIEW FUNCTIONAL DESCRIPTION 9 Battery Cover 10 Battery Compartment BOTTOM ...

Page 9: ...ss Tag 4 SETUP Factory Calibration Tag 5 CAL Calibration Tag 6 Measurement Units 7 Automatic Temperature Compensation blinkswhentemperatureexceeds10 0 40 0 C 50 0 104 0 Frange 8 Temperature Units 9 SecondaryDisplay displaystemperaturemeasurements whenblinking temperaturehasexceededoperationrange 0 0 80 0 C 32 0 176 0 F DISPLAY ELEMENTS ...

Page 10: ...ly hot or cold solutions Particulate matter in a sample may scratch the prism Absorb sample with a soft tissue and rinse sample well with deionized or distilled water between samples Use plastic pipettes to transfer all solutions Do not use metallic tools such as needles spoons or tweezers as these will scratch the prism Cover sample well with hand if measuring in direct sun To reduce the effects ...

Page 11: ...s the ON OFF key then release Two instrument test screens will be displayed briefly all LCD segments followed by the percentage of remaining battery life The meter will then briefly display an indication of the measurement units set When LCD displays dashes the instrument is ready 3 Press the ZERO key If no error messages appear your unit is calibrated For a description of ERROR MESSAGES see page ...

Page 12: ... last measurement value will be displayed until the next sample is measured or the instrument is turned off Temperature will be continuously updated The ATC tag blinks and automatic temperature compensation is disabled if the temperature exceeds the 10 0 40 0 C 50 0 104 0 F range 3 Press the READ key The result are displayed in unit of interest MEASUREMENT PROCEDURE 2 Using a plastic pipette drip ...

Page 13: ...e four measurement scales each time the key is pressed and the primary display indicates G G for g 100 g G L for g 100 mL S G for Specific Gravity and bAU for Baumé When the instrument displays the screen with 4 dashes the instrument is ready for measurement TO CHANGE MEASUREMENT UNIT ...

Page 14: ...tely 8 seconds The LCD will display the all segment screen followed by a screen with the model number on the primary display and the version number on the secondary display Continue pressing the ON OFF key 2 While continuing to hold the ON OFF key press the ZERO key The temperature unit will change from C to F or vice versa 8seconds C or F TO CHANGE TEMPERATURE UNIT ...

Page 15: ... dried Sodium Chloride CAS 7647 14 5 MW 58 44 directly into the container Add distilled or deionized water to the container so the total weight of the solution is 100 g Example with g 100 g NaCl g 100 g NaCl g NaCl g Water g Total 10 10 000 90 000 100 000 To make a Standard NaCl Solution g 100 g follow the procedure on the next page MAKING A STANDARD SODIUM CHLORIDE SOLUTION ...

Page 16: ... off Turn instrument upside down and remove the battery cover by turning it counterclockwise BATTERY REPLACEMENT Extract the battery from its location Replace with a new 9V battery making sure to observe polarity Insert the back battery cover and fasten it by turning clockwise to engage ...

Page 17: ...O t LO primary display Cal segment ON Temperature exceeds ATC low limit 10 0 C during calibration t HI primary display Cal segment ON Temperature exceeds ATC high limit 40 0 C during calibration Air Prism surface insufficiently covered ELt Too much external light for measurement Cover sample well with hand nLt LED light is not detected Contact your local Hanna Instruments Office Battery segment bl...

Page 18: ...18 MAN96821 04 17 ACCESSORIES Code Description HI740157P Plastic refilling pipette 20 pcs HI740029P 9V Battery 10 pcs ...

Page 19: ...umber and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Instruments first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid When ship ping any instrument make sure it is properly packed for complete protecti...

Page 20: ...ments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com Local Office Hanna Instruments USA 270 George Washington Highway Smithfield RI 02917 Phone 800 426 6287 Fax 401 765 7575 e mail tech hannainst com MAN96821 ...

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