REF401_手册说明书指南

REF401Operation ManualAntifreeze/Battery/Cleaning Fluids refractometerModelRangeMin.DivAccuracyE:-84℉-32℉5℉5℉RHA-100/ATCP:-60℉-32F5℉5℉B:1.100-1.400sg0.01sg0.02sgE:-60℃-0℃5℃±5℃RHA-200/ATCP:-50℃-0℃5℃5℃B:1.100-1.400sg0.01sg±0.02sgE-60℉-32F10℉±10℉RHA-300/ATCP:-50℉-32℉10F±10℉B:1.15-1.30sg0.01sg±0.02sgE:-50℃-0℃5℃±5℃P:-50℃-0℃5℃5℃RHA-503/ATCC:-40℃-0℃5℃5℃B:1.100-1.400sg0.01sg+0.02sgP:-60℃-0℃5℃5℃(-70℉-32℉)RHA-600/ATCE:-70℃-0℃5C±5℃(-90℉-32℉)B:1.100-1.400sg0.01sg±0.02sgE:-50℃-0℃(0-70%)5℃(5%)±5℃(5%)RHA-218/ATCP:-50℃-0℃(0-70%)5℃(5%)5℃(5%)Remarks:1)If new style model,"N"will be added in the model name,such as RHAN-100ATC etc..2)ATC Compensation Range:From 10'C to 30C(50'F to 86'F)3)In the above firms,E,P.B and C respectively refer to Ethylene Glycol,Propylene Glycol,Battery andCleaning Fluids.Parts:New Design Parts1---Daylight Plate;2----Calibration Screw:3----Focus Adjustment;4----Eyepiece;5----Calibration Screw BlockMethod of operation:1)Aim the front end of the refractometer to the direction of bright light,and adjust the eyepiece until the reticle can beseen clearly.2)Adjustment of null:Open the daylight plate and place 2-3 drops of distilled water on the main prism.Close the daylight plate and press itlightly so the water spreads across the entire surface of the prism without air bubbles or dry spots.Allow the sample toremain on the prism for approximately 30 seconds.Then adjust the Calibration Screw until the light/dark boundarycoincides with the null line.Adjustment of refractometer with temperature compensation function should be madeunder the condition of 20'C(68F)environmental temperature.When working temperature of the room or environment(not the sample)changes by more than 5F,we recommend recalibration to maintain accuracy.3)Operation procedure is done after calibration and it is done in essentially the same manner as calibration.Open the