Hanna Instruments
Instruction Manual for HANNA instruments models including: HI96821 Digital Sodium Chloride Refractometer, HI96821, Digital Sodium Chloride Refractometer, Sodium Chloride Refractometer, Chloride Refractometer
1 день назад — • Quick reference guide with QR code for manual download and instrument quality certificate ... The measurement of refractive index is simple and quick and ...
• Quick reference guide with QR code for manual download and instrument quality certificate. Note: Save all packing material until you are sure that the ...
7 дней назад — Dear Customer,. Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using this instrument as it ...
File Info : application/pdf, 14 Pages, 677.54KB
DocumentDocumentINSTRUCTION MANUAL HI96821 Digital Sodium Chloride Refractometer Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA www.hannainst.com Dear Customer, Thank you for choosing a Hanna Instruments® product. Please read this instruction manual carefully before using this instrument as it provides the necessary information for correct use of this instrument, and a precise idea of its versatility. If you need additional technical information, do not hesitate to email us at tech@hannainst.com. Visit www.hannainst.com for more information about Hanna Instruments and our products. TABLE OF CONTENTS 1. Preliminary Examination ..................................................................................................................... 3 2. General Description ............................................................................................................................. 3 3. Specifications ..................................................................................................................................... 4 4. Principle of Operation ......................................................................................................................... 5 5. Functional Description ......................................................................................................................... 6 6. Measurement Guidelines ..................................................................................................................... 7 7. Calibration Procedure .......................................................................................................................... 8 8. Measurement Procedures .................................................................................................................... 9 9. Making a NaCl Standard Solution (g/100 g) ....................................................................................... 11 10. Battery Replacement ...................................................................................................................... 11 11. Error Messages ............................................................................................................................... 12 12. Accessories .................................................................................................................................... 13 Certification .......................................................................................................................................... 14 Recommendations for Users ................................................................................................................... 14 Warranty .............................................................................................................................................. 14 All rights are reserved. Reproduction in whole or in part is prohibited without the copyright owner's written consent, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA. Hanna Instruments reserves the right to modify the design, construction, or appearance of its products without advance notice. Preliminary Examination 3 1. PRELIMINARY EXAMINATION Remove the instrument and accessories from the packaging and examine it carefully. For further assistance, please contact your local Hanna Instruments® office or email us at tech@hannainst.com. Each HI96821 instrument is supplied with: · Plastic pipette · 9 V battery · Quick reference guide with QR code for manual download and instrument quality certificate Note: Save all packing material until you are sure that the instrument works correctly. Any damaged or defective item must be returned in its original packing material with the supplied accessories. 2. GENERAL DESCRIPTION The HI96821 Digital Refractometer is a rugged portable, water resistant device that benefits from Hanna Instruments' years of experience as a manufacturer of analytical instruments. The HI96821 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. 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 nonuse 4 3. SPECIFICATIONS Range g/100 g Resolution Accuracy Range g/100 mL Resolution Accuracy Range Specific Gravity (S.G. 20/20) Resolution Accuracy Range °Baumé Resolution Accuracy Range Temperature Resolution Accuracy Temperature compensation Measurement time Minimum sample volume Light source Sample cell Case material Enclosure rating Battery type / life Autooff Dimensions Weight 0.0 to 28.0 g/100 g 0.1 g/100 g ±0.2 g/100 g 0.0 to 34.0 g/100 mL 0.1 g/100 mL ±0.2 g/100 mL 1.000 to 1.216 Specific Gravity 0.001 Specific Gravity ±0.002 Specific Gravity 0.0 to 26.0 °Baumé 0.1 °Baumé ±0.2 °Baumé 0.0 to 80.0 °C (32.0 to 176.0 °F) 0.1 °C / 0.1 °F ±0.3 °C / ±0.5 °F Automatic 10.0 to 40.0 °C (50.0 to 104.0 °F) Approximately 1.5 seconds 100 µL (cover prism totally) Yellow LED Stainless steel ring and flint glass prism ABS IP65 9 V / 5000 readings After 3 minutes of nonuse 192×102×69 mm (7.6×4.1×2.7") 350 g (12.3 oz.) Specifications Principle of Operation 5 4. PRINCIPLE OF OPERATION Aqueous NaCl determinations are made by measuring the refractive index of solution. Refractive Index is an optical characteristic of a substance and the number of dissolved particles in it. Refractive Index is defined as the ratio of the speed of light in empty space to the speed of light in the substance. A result of this property is that light will "bend", or change direction, when it travels through a substance of different refractive index. This is called refraction. When passing from a material with a higher to lower refractive 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. The critical angle can be used to easily calculate the refractive index according to the equation: Where: sin (critical) = n2 / n1 n2 is the refractive index of the lowerdensity medium; n1 is the refractive index of the higherdensity medium. In the HI96821, light from an LED passes through a prism in contact with the sample. An image sensor determines the critical angle at which the light is no longer refracted through the sample. Specialized algorithms then apply temperature compensation to the measurement and convert the refractive index to: g/100 g (% by mass), g/100 mL, Specific Gravity (S.G. 20/20) or °Baumé. 6 5. FUNCTIONAL DESCRIPTION Top View 1 FunctionalDescription Rear View Sodium Chloride Refractometer READ ZERO RANGE g/100g g/100mL SG (20/20) °Baumé 2 3 4 5 Keypad 1. Liquid Crystal Display (LCD) 2. Keypad 3. Stainless steel sample well and prism 4. Battery cover 5. Battery compartment ON/OFF READ User measurement ZERO User calibration Display Elements 4 5 6 7 3 2 8.8.8.8 1 888.8 8 9 1. Battery (blinks when low battery condition detected) 2. Primary display (displays measurement and error messages) 3. Measurement in progress tag 4. SETUP: factory calibration tag 5. CAL: calibration tag 6. Measurement units 7. Automatic temperature compensation (blinks when temperature exceeds 10.0 to 40.0 °C / 50.0 to 104.0 °F range) 8. Temperature units 9. Secondary display (displays temperature measurements; when blinking, temperature has exceeded operation range: 0.0 to 80.0 °C / 32.0 to 176.0 °F) MeasurementGuidelines 7 6. MEASUREMENT GUIDELINES · Handle instrument carefully. Do not drop. · Do not immerse instrument under water. · Do not spray water to any part of instrument except the "sample well" located over the prism. · The instrument is intended to measure sodium chloride solutions. Do not expose instrument or prism to solvents that will damage it. This includes most organic solvents and extremely 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. · To reduce the effects of evaporation or absorption of water when taking readings over a period of time, the prism and sample well can be covered with plastic wrap. 8 CalibrationProcedure 7. CALIBRATION PROCEDURE Calibration should be performed daily, before measurements are made, when the battery has been replaced, between a long series of measurements, or if environmental changes have occurred since the last calibration. 1. Press 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 briefly display an indication of the measurement units set. When LCD displays dashes, the instrument is ready. 8.8.8.8 888.8 100 bAtt G-G ---25.0 2. Using a plastic pipette, fill the sample well with distilled or deionized water. Make sure the prism is completely covered. Note: If the ZERO sample is subject to intense light such as sunlight or another strong source, cover the sample well with your hand or other shade during the calibration. 3. Press the ZERO key. If no error messages appear, your unit is calibrated (see Error Messages section). Note: The 0.0 screen will remain until a sample is measured or the power is turned off. ZERO 25.0 4. Gently absorb the ZERO water standard with a soft tissue. Use care not to scratch the prism surface. Dry the surface completely. The instrument is ready for sample measurement. Note: If the instrument is turned off the calibration will not be lost. 0.0 25.0 MeasurementProcedures 9 8. MEASUREMENT PROCEDURES Verify the instrument has been calibrated before taking measurements. 1. Wipe off prism surface located at the bottom of the sample well. Make sure the prism and sample well are completely dry. 2. Using a plastic pipette, drip sample onto the prism surface. Fill the well completely. Note: If the temperature of the sample differs significantly from the temperature of the instrument, wait approximately 1 minute to allow thermal equilibration. 3. Press the READ key. The result is displayed in the selected units of interest. READ 12.5 25.0 25.0 Note: The 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 to 40.0 °C / 50.0 to 104.0 °F range. 4. Remove sample from the sample well by absorbing with a soft tissue. 5. Using a plastic pipette, rinse prism and sample well with distilled or deionized water. Wipe dry. The instrument is ready for the next sample. 10 MeasurementProcedures To Change Measurement Unit Press the RANGE key to select measurement units.The instrument toggles between the four measurement scales each time the key is pressed and the primary display indicates "GG" for g/100 g, "GL" for g/100 mL, "S.G." for Specific Gravity and "bAU" for °Baumé. When the instrument displays the screen with 4 dashes, it is ready for measurement. RANGE G-G G-L S.G. bAU ---25.0 To Change Temperature Unit To change the temperature measurement unit from Celsius to Fahrenheit (or vice versa), follow this procedure. 1. Press and hold the ON/OFF key continuously for approximately 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. 8 seconds 8.8.8.8 888.8 821 2.00 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. ZERO 821 2.00 °C or °F MakingaNaClStandardSolution(g/100g) 11 9. MAKING A NaCl STANDARD SOLUTION (g/100 g) To make a Standard NaCl Solution (g/100 g), follow the procedure below: · Place container (such as a glass vial or dropper bottle that has a cover) on an analytical balance. · Tare the balance. · To make an X NaCl solution weigh out X grams of high purity dried Sodium Chloride (CAS #: 7647145: 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. Note: Solutions above 60 % Brix need to be vigorously stirred or shaken and heated in a water bath. Remove solution from bath when sucrose has dissolved. The total quantity can be scaled proportionally for smaller containers but accuracy may be sacrificed. Example with g/100 g NaCl: g/100 g NaCl 10 g NaCl 10.000 g Water 90.000 g Total 100.000 10. BATTERY REPLACEMENT To replace the instrument's battery, follow these steps: · Make sure the instrument is off. · Turn instrument upside down and remove the battery cover by turning it counterclockwise. · Extract the battery from its location. · Replace with a new 9 V battery making sure to observe polarity. · Insert the back battery cover and fasten it by turning clockwise to engage. 12 11. ERROR MESSAGES "Err" General failure. Cycle power to instrument. If error persists, contact your local Hanna Instruments® office. "LO" primary display Sample exceeds minimum measurement range. "HI" primary display Sample exceeds maximum measurement range. "LO" primary display Cal segment ON Wrong solution used to zero instrument. Use deionized or distilled water. Press ZERO. "HI" primary display Cal segment ON Wrong solution used to zero instrument. Use deionized or distilled water. Press ZERO. "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. ErrorMessages Err 25.0 LO 25.0 HI 25.0 LO 25.0 HI 25.0 t LO 9.8 t HI 40.3 Air 25.0 ELt 25.0 Accessories "nLt" LED light is not detected. Contact your local Hanna Instruments® office. Battery segment blinking <5 % of battery life is remaining. Temperature values are blinking "0.0 °C" or "80.0 °C" Temperature measurement out of range (0.0 to 80.0 °C). ATC segment blinking Outside temperature compensation range (10.0 to 40.0 °C). SETUP segment blinking Factory calibration lost. Contact your local Hanna Instruments office. 12. ACCESSORIES Ordering Information HI740157P HI740029P Product Description Plastic refilling pipette (20 pcs.) 9 V battery (10 pcs.) 13 11.6 0.0 nLt 25.0 12.5 25.3 13.9 80.0 13.9 40.3 ---25.0 14 Certification CERTIFICATION All Hanna® instruments conform to the CE European Directives and UK standards. Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste. Instead, hand it over to the appropriate collection point for the recycling of electrical and electronic equipment, which will conserve natural resources. Disposal of waste batteries. This product contains batteries, do not dispose of them with other household waste. Hand them over to the appropriate collection point for recycling. Ensuring proper product disposal prevents potential negative consequences for the environment and human health. For more information, contact your city, your local household waste disposal service, or the place of purchase. RECOMMENDATIONS FOR USERS Before using this product, make sure it is entirely suitable for your specific application and for the environment in which it is used. Any variation introduced by the user to the supplied equipment may degrade the meter's performance. For your and the meter's safety do not use or store the meter in hazardous environments. WARRANTY HI96821 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service is required, contact your local Hanna Instruments® office. If under warranty, report the model number, date of purchase, serial number, 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 meter 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 shipping any instrument, make sure it is properly packed for complete protection. MAN96821 06/24