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16

MA873 Digital Glucose Refractometer

Battery segment

blinking

<5% of battery life is

remaining.

Temperature values

are blinking

0.0°C

or

80.0°C

Temperature

measurement out

of sampling range

(0.0 to 80.0°C).

ATC

segment

blinking

Outside temperature

compensation range

(10 to 40°C).

SETUP

segment

blinking

Factory calibration lost.

Contact Milwaukee.

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Summary of Contents for MA873

Page 1: ...INSTRUCTION MANUAL SATISFACTION GUARANTEED MA873 Digital Glucose Refractometer ...

Page 2: ... is prohibited without the written consent of the copyright owner Milwaukee Instruments Inc Rocky Mount NC 27804 USA THANK YOU for choosing Milwaukee Instruments This instruction manual will provide you the necessary information for correct use of the meters ...

Page 3: ...CATIONS 7 4 PRINCIPLE OF OPERATION 8 5 MEASUREMENT GUIDELINES 9 6 CALIBRATION PROCEDURE 10 7 MEASUREMENT PROCEDURE 12 8 MAKING A STANDARD GLUCOSE SOLUTION 13 9 CHANGING TEMPERATURE UNIT 14 10 ERROR MESSAGES 15 11 BATTERY REPLACEMENT 17 CERTIFICATION 18 RECOMMENDATION 18 WARRANTY 18 ...

Page 4: ...T IN PROGRESS TAG C SETUP FACTORY CALIBRATION TAG D CAL CALIBRATION TAG E PRIMARY DISPLAY DISPLAYS MEASUREMENT AND ERROR MESSAGES F AUTOMATIC TEMPERATURE COMPENSATION BLINKS WHEN TEMPERATURE EXCEEDS 10 40 C 50 104 F RANGE G TEMPERATURE UNITS H SECONDARY DISPLAY DISPLAYS TEMPERATURE MEASUREMENTS WHEN BLINKING TEMPERATURE HAS EXCEEDED OPERATION RANGE 0 80 C 32 176 F ...

Page 5: ...Refractometer 0 to 85 Mass A E F G B C D A LIQUID CRYSTAL DISPLAY LCD B READ KEY USER MEASUREMENT C ZERO KEY USER CALIBRATION D ON OFF E PRIMARY DISPLAY F SECONDARY DISPLAY G STAINLESS STEEL SAMPLE WELL AND PRISM Bottom H I H BATTERY COVER I BATTERY COMPARTMENT ...

Page 6: ...easurement technique and temperature compensation employ methodology recommended in the ICUMSA Methods Book Internationally recognized body for Sugar Analysis Temperature in C or F is displayed simultaneously with the measurement on the large dual level display along with icons for Low Power and other helpful message codes Key features include y Dual level LCD y Automatic Temperature Compensation ...

Page 7: ...y 1 5 seconds Minimum Sample Volume 100 µL cover prism totally Sample Cell SS ring and flint glass prism Temperature Compensation Automatic between 10 and 40 C 50 to 104 F Case Material ABS Enclosure Rating IP 65 Battery Type Life 1 x 9 volt AA batteries 5000 readings Auto Shut off After 3 minutes of non use Dimensions 19 2 x 10 2 x 6 7 cm 7 5 x 4 x 2 6 Weight 420 g 14 8 oz ...

Page 8: ...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 sin θcritical n2 n1 Where n2 is the refractive index of the lower density medium n1 is the refractive index of the higher density medium i r n1 n2 angle of incidence angle of refraction n1 n2 refractive index Refraction CriticalAngle Total...

Page 9: ... y The instrument is intended to measure sugar solutions Do not expose instrument or prism to solvents that will damage it This includes most organic solvents and extremely hot or cold solutions y Particulate matter in a sample may scratch the prism Absorb samplewithasofttissueandrinsesamplewellwithdeionized or distilled water between samples y Use plastic pipettes to transfer all solutions Do not...

Page 10: ... release Two instrument test screens will be displayed briefly an all segment screen followed by the percentage of remaining battery life When LCD displays dashes the instrument is ready 2 Using plastic pipettes fill the sample well with distilled or deionized water 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...

Page 11: ...ESSAGES section Note The 0 0 screen will remain until a sample is measured or the power is turned off 4 Gently absorb the ZERO water standard with a soft tissue Use care not to scratch the prism surface Wipe off the surface completely The instrument is ready for sample measurement Note If instrument is turned off the calibration will not be lost ...

Page 12: ...ace 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 Measurement is displayed in units of by weight w w Note The ATC tag blinks and automatic temperature compensation is disabled if the temperature exceeds the 10 40 C 50 104 F range 4 Remove sam...

Page 13: ... balance y To make an X Glucose solution weigh out X grams of high purity Glucose CAS 50 99 7 directly into the container y Add distilled or deionized water to the container so the total weight of the solution is 100g Note Solutions above 20 may need to be vigorously stirred or shaken and heated in a water bath to roughly 40 C 104 F Remove solution when glucose has dissolved Cool completely before...

Page 14: ...hold the ON OFF key continuously for aproximately 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 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 C or F ...

Page 15: ...libration used to zero instrument Use deionized or distilled water Press Zero HI Top display CAL segment ON Wrong calibration used to zero instrument Use deionized or distilled water Press Zero t LO Top display CAL segment ON Temperature exceeds ATC low limit 10 C during calibration t HI Top display CAL segment ON Temperature exceeds ATC high limit 40 C during calibration Air Prism surface insuffi...

Page 16: ...battery life is remaining Temperature values are blinking 0 0 C or 80 0 C Temperature measurement out of sampling range 0 0 to 80 0 C ATC segment blinking Outside temperature compensation range 10 to 40 C SETUP segment blinking Factory calibration lost Contact Milwaukee ...

Page 17: ...the instrument OFF by pressing the ON OFF key y Turn instrument upside down and remove the battery cover by turning it counterclockwise y Extract the battery from its location y Replacewithfresh9Vbatterymakingcertaintoobservepolarity y Insert the back battery cover and fasten it by turning clockwise to engage ...

Page 18: ...isproduct makesureitisentirelysuitableforyourspecific application and for the environment in which it is used Any modification introduced by the user to the supplied equipment may compromise the meter s performance For your and the meter s safety do not use or store the meter in hazardous environment To avoid damage or burn do not perform any measurement in microwave ovens WARRANTY This instrument...

Page 19: ...MilwaukeeInstrumentsreservestherighttomakeimprovementsindesign construction and appearance of its products without advance notice ...

Page 20: ...11C H 6726 Szeged HUNGARY tel 36 62 428 050 fax 36 62 428 051 www milwaukeeinst com e mail sales milwaukeeinst com Milwaukee Instruments Inc 2950 Business Park Drive Rocky Mount NC 27804 USA tel 1 252 443 3630 fax 1 252 443 1937 www milwaukeeinstruments com e mail sales milwaukeeinstruments com MANMA873 ...

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