REF102_手册说明书指南

Hand Held RefractometerOperation InstructionsSeriesNo.ModelMeasuring RangeMinimum ScaleSize(mm)Weight(g)1REF101/1110-10%Brix0.1%26/30×40×1901552REF102/1120-18%Brix0.1%0r0.2%26/30×40×1701853REF103/113/103bp0-32%Brix0.2%26/30×40×170175/200/1104REF104/114/104bp28-62%Brix0.2%26/30×40×1501605REF10545-82%Brix0.5%26×40×15016058-90%Brix1%6REF106/116/106bp38-42%Be'0.5%27/30×40×16017517-27%Water1%13-25%REF106c/116c0.1%27/30×40X160175Honey moisture58-92%Brix1%REF106b38-43%Be'0.5%26×40X12517512-27%Water1%9REF10958-92%Brix0.5%26X40X12517510REF109b1.435-1.520Nd0.001Nd26×40×12517511REF10100-50%dextrose1%26×40×125175Note:1.Each of the models in Series catalog with footnote "bp"has a prism base made of black engineering plastics.2."Weight"listed here refers to the weight of plain type refractometer.Name of componentsQ①②③④⑤1.Prism2.Cover plate3.Correeting serew4.Mirror tube5.Eyepiece (Adjusting ring of diopter)Method of operation1.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 beseen clearly.2.Adjustment of null:Open the cover plate 2.Drop one or two drops of distilled water on the prism.Close the cover plate and press itlightly.Then adjust the correcting serew 3 to make the light/dark boundary coincide with the null line.(Adjustment of refractometer with temperature compensation function should be made under the condition of 20C environmentaltemperature).REF104 Model:Make adjustment by using a saturated sodium chloride solution.The refractive index of the saturated sodiumchloride solution is:When temperature is at 15C,adjust to 29.9%;when it is at 20C,adjust to 29.6%;when it is at 25C,adjust to 29.2%.REF105,REF106 Model Adjustment of reference:Drop one drop of dioptric oil on the bright surface of the reference block.Open the cover plate(2),stick the reference block on the surface of the prism,and press it lightly with your hand,so that it can not slidedown,Rotate and adjust the correcting screw (3)to make the light/dark boundary coincide with the reference line(Brix 78.8%).***REF 106c Model Adjustment of reference:The method is the same with that of REF106 Model,except that the light/darkboundary should be adjusted to 19.6%.