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CALIBRATION PROCEDURE

13

3. Press the

ZERO

key. If no error messages appear, your unit is

calibrated. (For a description of error messages see ERROR

MESSAGES 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. Dry the surface

completely. The instrument is ready for sample measurement.

Note:

If instrument is turned off the calibration will not be lost.

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Содержание MA886

Страница 1: ...INSTRUCTION MANUAL SATISFACTION GUARANTEED MA886 Digital Sodium Chloride Refractometer ...

Страница 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 ...

Страница 3: ...E OF OPERATION 9 5 MEASUREMENT GUIDELINES 11 6 CALIBRATION PROCEDURE 12 7 MEASUREMENT PROCEDURE 14 8 CHANGING MEASUREMENT UNIT 16 9 CHANGING TEMPERATURE UNIT 17 10 MAKING A STANDARD SODIUM CHLORIDE SOLUTION 18 11 ERROR MESSAGES 19 12 BATTERY REPLACEMENT 21 CERTIFICATION 22 RECOMMENDATION 22 WARRANTY 22 ...

Страница 4: ... to ensure no damage has occurred during shipping If any damage has occurred notify your Dealer Each instrument is supplied with y 9 V battery y Instruction manual Note Save all packing material until you are sure that the instrument functions correctly A defective instrument must be returned in its original packing ...

Страница 5: ...P FACTORY CALIBRATION TAG D CAL CALIBRATION TAG E AUTOMATIC TEMPERATURE COMPENSATION BLINKS WHEN TEMPERATURE EXCEEDS 10 40 C 50 104 F RANGE F PRIMARY DISPLAY DISPLAYS MEASUREMENT AND ERROR MESSAGES G TEMPERATURE UNITS H SECONDARY DISPLAY DISPLAYS TEMPERATURE MEASUREMENTS WHEN BLINKING TEMPERATURE HAS EXCEEDED OPERATION RANGE 0 80 C 32 176 F I RANGE INDICATOR ...

Страница 6: ...100 g 2 g 100 mL 3 S G 20 20 4 Baumé A H G F B C E D A LIQUID CRYSTAL DISPLAY LCD B READ KEY USER MEASUREMENT C ZERO KEY USER CALIBRATION D RANGE KEY USER MEASUREMENT UNIT E ON OFF F STAINLESS STEEL SAMPLE WELL AND PRISM G SECONDARY DISPLAY H PRIMARY DISPLAY BOTTOM I J I BATTERY COVER J BATTERY COMPARTMENT ...

Страница 7: ...trument 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 ...

Страница 8: ...0 5 F Light Source Yellow LED Measurement Time Approximately 1 5 seconds Minimum Sample Volume 100 µL cover prism totally Sample Cell Stainless Steel 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 ...

Страница 9: ...ndex 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 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 ...

Страница 10: ...meter Prism Lens Linear Image Sensor Sample Shadow Led Sample Well Specialized algorithms then apply temperature compensation to the measurement and convert this refractive index to g 100 g by mass g 100 mL Specific Gravity S G 20 20 or Baumé ...

Страница 11: ...ons 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 use metallic tools such as needles spoons or tweezer...

Страница 12: ...ument test screens will be displayed briefly all LCD segments followed by the percentage of remaining battery life It will briefly display an indication of the measurement units set When the LCD displays dashes the instrument is ready 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 inte...

Страница 13: ... MESSAGES 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 Dry the surface completely The instrument is ready for sample measurement Note If instrument is turned off the calibration will not be lost ...

Страница 14: ...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 results are displayed in unit of interest Note The last measurement value will be displayed until the next sample is measured or the ...

Страница 15: ...he temperature exceeds the 10 40 C 50 104 F range Note Temperature is not displayed in Baumé mode 4 Remove sample from the sample well by absorbing on 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 ...

Страница 16: ...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 A number on the display indicates the selected unit 1 denotes g 100 g 2 denotes g 100 mL 3 denotes Specific Gravity and 4 in the secondary display denotes Baumé as indicated on the instrument cover Note Temperature is no...

Страница 17: ...theON OFFkeycontinuouslyforapproximately 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 ...

Страница 18: ...ass vial or dropper bottle that has a cover on an analytical balance y Tare the balance y TomakeanXNaClsolutionweighoutXgramsofhighpuritydried Sodium Chloride CAS 7647 14 5 directly into the container y 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 ...

Страница 19: ...libration used to zero instrument Use deionized or distilled water Press Zero HI Primary display CAL segment ON Wrong calibration used to zero instrument Use deionized or distilled water Press Zero t LO Primary display CAL segment ON Temperature exceeds ATC low limit 10 C during calibration t HI Primary display CAL segment ON Temperature exceeds ATC high limit 40 C during calibration Air Prism sur...

Страница 20: ... 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 ...

Страница 21: ...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 ...

Страница 22: ...ngthisproduct 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 instru...

Страница 23: ...MilwaukeeInstrumentsreservestherighttomakeimprovementsindesign construction and appearance of its products without advance notice ...

Страница 24: ...Neutron Place Rowville VIC 3178 www pacificsensortech com au 1300 662 720 sales pacificsensortech com au 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 MANMA886 ...

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