instruction manual for hand held refractometers ref-series · hand held brix refractometer the...

$: INSTRUCTION MANUAL FOR Hand Held Refractometers REF-Series · Hand Held Brix Refractometer The REF-108 developed for working with sugar related liquids (fruit juices, honey, soft$
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION

3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 [email protected]

MRC.VER.01-04.10

INSTRUCTION MANUAL FOR

Hand Held Refractometers

REF-Series



MRC.VER.01-04.10

REF-108 Hand Held Brix Refractometer

The REF-108 developed for working with sugar related liquids (fruit juices, honey, soft drinks, wine) , help monitor and control sugar concentrations in foods and beverages. Whether users are checking the" ripeness" of fruit in the field, verifying product quality after harvesting, or controlling concentrations during processing and packaging, refractometers provide critical information to ensure product quality. It is also commonly used for controlling the concentration of various industrial fluids (cutting lubricants and flux rinsing compounds). Which model to chose is according to the concentration in the liquids and the parameter of refractometer. SERIES:

Style Model Range Min. Div Accuracy Remarks

Sugar Refractometer REF-108 0-80Brix 0.5% Brix ±0.5% Without ATC

Parts Diagram:

1. daylight prism stand 2. refractive prism 3. refractive prism stand 4. adjustment screw 5. tube, secure rubber grip 6. focus control 7. adjustment tube 8. eyepiece .eyecup

OPERATING INSTRUCTION: Step 1 Open the cover plate ( 1), Clean the refraction prism (2) carefully with soft flannelette, Be careful not to scrape the refraction prism surface. Setp 2 Put some drops of solution on the refrection prism surface and then cover the cover plate ( 1) slowly so as to let the solution be all over the prism surface. Setp 3 Adjust the cover plate (1) against the light soure or bright place. Turn the visual range ring (7) until the graduated lines can be seen clearly. The readings of the demarcation line between brightness and darkness just indicate the sugar content in the solution. For modle REF 108 . We can choose the range 0- 50% or 50 - 80% by rotateing the knob (6) .



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Put several drops of distilled water on the surface of the refraction prism(2) . Adjust the adjusting screw (4) until the demarcation line between brightness and darkness is just on the graduated line 0%; Then proceed on the measurement of the testing object, and the reading thus obtained is the correct one. Another methods for obtain the exact value is consulte with the temperature correction table, A temperature correction value must be added to (or subtract from) the scale reading.

The Attached Temperature Correction Table for readings of sugar content measuring gage.

REF-107 Hand Held Refractometer

This model can be used for measuring the sugar content of cocentrated fruit - .juice, condensed milk, liquid sugar and jam. It has a largest measurement range than any other model of Brix refractometer. It has three scales: No.1, No.2 and No.3


Sugar Refractometer REF-107 0-90Brix 0.2% Brix ±0.2% Without ATC



MRC.VER.01-04.10

1. Cover plate 2. Knob 3. Adjusting ring 4. Entrance light prism 5. Eyepiece

DESCRIPTION Model REF-107 has three scale to cover the range of 0 to 90%, scale one is 0 to 42%, scale two is 42 to 71 %,

scale three is 71 to 90%. The wide range substances with unknown concentrations.

METHOD OF OPERATION 1. Aim the front end of the refractometer to the direction of bright light, and adjust the adjusting ring of diopter 5

until the reticle can be seen clearly.

2. Adjustment of null

The null of this instrument has been adjusted before it is out of factory.

3. Open the entrance light prism, clean the surface of prism by soft

cotton flannel, drop 1 - 2 drops of solution to be measured. Close the

entrance light prism, press it lightly, then read the corresponding scale

of light and dark boundary, the reading is the brix of measured solution. 4. If the light is not sufficient, you could rotate and adjust 1.

5. The model has three scales, you could get them by rotating 2.

6. When measure solution of high concentration, there would be chromatism in the

view, you could reduce it by rotating 3.

7. After measurement, clean away the adherend on the surface of prism and cover

plate by moist gauze.



MRC.VER.01-04.10

REF-211/212 Hand Held Salinity Refractometer

REF-211/212 are designed for testing the concentration of salt water and brine. Its triple scale provides a direct reading of the specific gravity and concentration ( Parts per Thousand) of salt in water and The RHS-1 0 proves itself valuable for agriculture, food processing and wildlife management. This instrument is equipped with Automatic Compensation system making it ideal for field use. Which model is to be chosen according to the concentration in the liquids and the parameter of refractometer.


REF-211 0-10Brix 0.1% Brix ±0.1% With ATC Salinity Refractometers

REF-212 0-28Brix 0.2% Brix ±0.2% With ATC

Parts Diagram:

Operation Steps:

Step 1.

Open daylight plate, and place 2-3 drops of distilled water on the main prism. Close the daylight plate so the water spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to test on the prism for approximate. 30 seconds before going to step #2. (THIS ALLOWS THE SAMPLE TO ADJUST TO THE AMBIENT TEMPERATURE OF THE REFRACTOMETER.) Step2.

Hold daylight plate in the direction of a light source and look into the eyepiece. You will see a circular field with graduations down the center (you may have to focus the eyepiece to clearly see the graduations). The upper portion ofthe field should be blue, while the lower portion should the white. (The pictures showed here and showed in step 3. & step 4. are only as reference, The right specific scale is listed in the product.)



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Step 3. Using distilled water as a sample, look into the eyepiece and turn the Calibration Screw until the boundary between the upper blue field and the lower white field meet exactly on the zero scale, such as showed in the picture. That is the end of calibration. Make sure ambient room temperature is correct for the solution you are using (20°C for our solution that is 68 OF). When working temperature ofthe room or environment (not the sample) changes by more than 5 of , we recommend recalibrating to maintain accuracy and reproducibility. If the instrument is equipped with Automatic Temperature Compensation system, the ambient working temperature of the room must be 20°C (68 OF) whenever the instrument is recalibrated. Once calibrated, shifts in ambient temperature within the acceptable range (10°C -30oe ) should not affect accuracy. Step 4.

Do step 1. using the specimen of liquids which will be measured as the substitution of distil led water. Then do step 2 and step 3. When do step 3again, you can take the reading where the boundary line of blue and white cross the graduated scale. The scale will provide a direct reading of the concentration

REF-105/115/116 Hand Held Sugar Refractometer

These Models are designed for measuring the solution with high sugar concentration or high Refractive Index.

Style Model Range Min. Div Accuracy Remarks REF-105 45-82Brix 0.5% Brix ±0.5% With ATC

REF-116 58-90Brix 38-43Be'

12-27%Water

0.5% Brix 0.5Be'

1% Water

±0.5% ±0.5Be'

±1% Water With ATC Sugar Refractometers

REF-115 0-55% Brix 1% Brix ±1% Without ATC

Parts Diagram:



MRC.VER.01-04.10

Operation Steps:

Step 1.

Open daylight plate, and place 2-3 drops of distilled water on the main prism. Close the daylight plate so the water spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to test on the prism for approximate. 30 seconds before going to step #2. (THIS ALLOWS THE SAMPLE TO ADJUST TO THE AMBIENT TEMPERATURE OF THE REFRACTOMETER.)

Step 2.

Hold daylight plate in the direction of a light source and look into the eyepiece.

You will see a circular field with graduations down the center (you may have to

focus the eyepiece to clearly see the graduations). The upper portion of the field

should be blue, while the lower portion should be white. (The pictures showed

here and showed in step 3 and step 4 are only as reference. The right specific

scale is listed in the product. )

Step 3. Look into the eyepiece and turn the calibration screw until the boundary

between the upper blue field and the lower white field meet exactly on the

standard scale. Please see the standard datas as list on the right. (The

instrument has been calibrated, if the instrument is with ATC, we recommend

to delete the calibration. )

Step 4.

Do step 1. Using the specimen of liquids which will be measured as the substitution of standard solution. Then do step 2. And step 3.. When do step 3 again, you can take the reading where the boundary line of blue and white cross the graduated scale. They will provide a direct reading of the Brix concen-tretion.

Model Standard data

REF-105 Brix 78.78

REF-116 Brix 78.78

REF-312 Hand Held Clinical Refractometer

REF-312 is designed for clinical usage and intended for both Veterinary and Human Being. This unit provides

veterinarians and Human Being with quick and accurate indication of vital.fluids levels. Its Triple scale reads urine

specific gravity total serum protein and refractive index. Which model to chose is according to the concentration in

the liquids and the parameter of refractometer.



MRC.VER.01-04.10


Clinical Refractometer REF-312 0-12g/dl

1.000-1.050sg 1.330-1.360RI

0.2g/dl 0.005sg

0.0005RI

±0.2g/dl ±0.005sg

±0.0005RI With ATC

Parts Diagram:

Operation Steps:

Step 1. Open daylight plate. and place 2-.~ drops of distilled water on the main prism. Close the daylight plate so the water spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to test on the prism for approximately 30 seconds before going to step #2. (THIS ALLOWS THE SAMPLE TO ADJUST TO THE AMBIENT TEMPERATURE OF THE REFRACTOMETER.) Step 2.

Hold daylight plate in the direction of a light source and look into the eyepiece. You will see a circular field with graduations down the center (you may have to focus the eyepiece to clearly see the graduations). The upper portion of the field should be blue. while the lower portion should be white.(The pictures showed here and showed in step 3.& step 4 are only as reference. The right specific scale is listed in the product.) Step 3. Using distilled water as a sample, look into the eyepiece and turn the Calibration Screw until the boundary between the upper blue field and the lower white field meet exactly on the zero scale, such as showed in the picture. That is the end of calibration. Make sure ambient room temperature is comect for the solution you are using (20'C for our solution that is 68°F ).When working temperature of the room or environment (not the sample) changes by more than 5 of, we recommend recalibrating to maintain accuracy and reproducibility. If the instrument is equipped with Automatic Temperature Compensation system, the ambient working temperature of the room must be 20'C (68°F) whenever the instrument is recalibrated. Once calibrated, shifts in ambient temperature within the acceptable range(lO'C-30'C)should not effect accuracy .



MRC.VER.01-04.10

Step 4.

Do stepl. using the specimen of liquids which will be measured as the substitution of distilled water. Then do step 2 and step 3. When do step 3again, you can take the reading where the boundary line of blue and white cross the graduated scale. The scale will provide a direct reading of the concentration.

REF-113/114 Hand Held Brix Refractometer

REF-113/114 are developed for working with sugar related liquids (fruit juices, honey, soft drinks, wine), help

monitor and control sugar concentrations in foods and beverages. Whether users are checking the" ripeness" of fruit

in the field, verifying product quality after harvesting, or controlling concentrations during processing and

packaging, refractometers provide critical information to ensure product quality. It is also commonly used for

controlling the concentration of various industrial fluids (cutting lubricants and flux rinsing compounds). Which

model is to be chosen according to the concentration in the liquids and the parameter of refractometer. Style Model Range Min. Div Accuracy Remarks

REF-113 0-32% Brix 0.2% Brix ±0.2% With ATC Brix Refractometer

REF-114 28-62% Brix 0.2% Brix ±0.2% With ATC

Parts Diagram:

Operation Steps:

Step 1. Open daylight plate. and place 2-.~ drops of distilled water on the main prism. Close the daylight plate so the water spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to test on the prism for approximately 30 seconds before going to step #2. (THIS ALLOWS THE SAMPLE TO ADJUST TO THE AMBIENT TEMPERATURE OF THE REFRACTOMETER.)



MRC.VER.01-04.10

Step 2. Hold daylight plate in the direction of a light source and look into the eyepiece. You will see a circular field with graduations down the center (you may have to focus the eyepiece to clearly see the graduations). The upper portion of the field should be blue, while the lower portion should be white.(The pictures showed here and showed in step 3.& step 4 are only as reference, The right specific scale is li sted in the product.)

Step 3. Using distilled water or calibration liquid as a sample, look into the eyepiece and turn the Calibration Screw until the boundary between the upper blue field and the lower white field meet exactly on the zero scale, such as showed in the picture. That is the end of calibration. Make sure ambient room temperature is correct for the solution you are using (200 for our solution that is 680 F). When working temperature of the room or the environment (not the sample) changes by more than 50 F, we recommend recalibrating to maintain accuracy and reproducibili ty. I f the instrument is equipped with Automatic Temperature Compensation system, the ambient working temperature of the room must be 20%(68 °F)whenever the instrument is recalibrated. Once calibrated, shifts in ambient temperature within the acceptable range (100 C-30° C) should not affect accuracy.

Step 4.

Do step I. using the specimen of liquids which will be measured as the substitution of distill ed water or calibration solution. Then do step2 and step3. When do step3 again, you can take the reading where the boundary line of blue and white cross the graduated scale. The scale will provide a direct reading of the Brix concentration.

Model Standard data

REF-114 Brix 29.6

Warning - Maintenance l. Accurate measurement depends on careful calibrati on. Follow the instru ctions above closely. Note: Shifts in ambient room temperature of the prism prior to measurement. The pri sm and sample must be at the same temperature for accurate results. 2. Do not expose the instrument to damp working conditions, and do not immerse the instrument in water . If the instrum ent becomes foggy, water has entered the body. Call a qualified service technician or contact your dealer. 3. Do not measure abrasive or corrosive chemicals with this instrum ent. They can damage the prism's'coating:-- 4. Clean the instrument between each measurement using a soft, damp cloth. Failure to clean the prism on a regular basis will lead to inaccurate results and damage to the pri sm's coating. 5. This is an optical instrum ent. It r equir es careful handling and storage. Failure to do so can result in damage to the optical components and its basic stru ctur e. With care, this instrument will provid e years of reliable service.

instruction manual for hand held refractometers ref-series · hand held brix refractometer the...

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