DG-501 Lumen Gemstone refractometer price 1.4~3.0 RI Gemological Diamond Jewel Digital Gem Refractometer
Description
Gemstone refractometer price 1.4~3.0 RI Gemological Diamond Jewel Digital Gem Refractometer
The product with part number DG-501 (Gemstone refractometer price 1.4~3.0 RI Gemological Diamond Jewel Digital Gem Refractometer)
is from company Lumen. Minimal order quantity is 1 pc, Origin China.
Brand Name: Lumen Place of Origin: Fujian, China (Mainland) Model Number: DG-501 Jewelry Tools & Equipments Type: Testers & Measurements Color: Silver Material: Aluminium Range: 1.400~3.000 Power: 9V Battery Packaging & Delivery Packaging Details: 39^23^22 cm Delivery Detail: Depend on quantity Specifications Specifications: 1.Test Range: 1.400~3.000 2.Power Input: 9V Battery 3.Working Temperature: 10~28 Degree Gemstone refractometer price 1.4~3.0 RI Gemological Diamond Jewel DigitalGemRefractometer Introduction:DG-501 Gem Digital Refractometer is for measuring the gem refractive index of an unknown gem stones, it is covering the full range from 1.40 to 3.00. It gives a quick and reliable differentiation of diamonds and imitations colored stones from their many imitations. Calibration:If the instrument has been subjected to rough handling in shipment , or if your environments is very different in temperature,calibration adjustment may require.Turn on the “ ON” buttonPress “TEST” button until the “CAL” appearsWhen the screen display “1.487”, place scale sample (1.487) on test platform, then press test button; now the screen display “1.806”, place scale sample (1.806) on the test platform, then press test button again.When the screen display “END”, the calibration is finished. Operation Instruction: Prepare: Please clean the gem stone and the test platform carefully before using. Any dust or fingerprint will effect the testing result.Put the Sample: Turn on the refractometer, then the screen display “0.000”, placed your sample on the center of the test platform. Make sure the gem is centered.Test: Press the button “Test”, you can get the testing result and distinguish what kind of stone is. Notification:It is really very important to clean the sample and test platform before using. Parts:Please check the following items:Digital Refractometer ……………………………………1Scale Sample ………………………………………………2Clean Cloth ………………………………………………1 Replace the BatteryWhen it is disable to turn on the refractometer, please replace the battery:
Following Parts
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