Digital Gem Refractometer Testing range from 1.30-2.99
Negotiable /Set
Min.Order:1 Set
Shenzhen Fable Jewellery Technology Co., Ltd.
Specification:
Dual purpose for refractive index and reflectivity,
Digital display
Oilless test: don’t need the refractive lndex liquid
Wide testing range: 1.30-2.99;
Digital circuit design, unaffected by ambient light, stable testing data
Error: less than or equal to 0.008
Power:9V battery;working temperature:10-28 degree
Calibration adjustment:
If the instrument has been subjected to rought handing inshipment,or if your environments is very different in temperature,Calibration adjustment may require.
1.Press TEST BUTTON until the “07”appears.
2.If “1.48 0000” is display,place scale sample(1.487)on test platform,then press test button
3.Press TEST BUTTON until the “04”appears,switch to other scale sample.
4.If “1.75 0000”is display, place scale sample(1.755)on test platform, then press test button.
5.Press TEST BUTTON until the”04”appears,return normal test status
including :
1.Clean sample
2.Clean test platform
3.Place sample
4.Adjust center position
5.Press Test Button and Read index value
6.Adjust sample positions and get correct index