UV COLORSCOPE Elma Watch winders This jeweller's tabletop vacuum casting

This jeweller's tabletop vacuum casting and investing machine is designed to be a simple

1 * String

the circuit apply setting discharge current to the power under test

Bergeon 6988-090

time and costs

UV COLORSCOPE Elma Watch winders This jeweller's tabletop vacuum castingUV lamp for testing the fluorescence of gemstones with long wave 366nm UV lamps This fluorescence test with the UV COLORSCOPE is more sensitive than the traditional incident light method. The high intensity of the bright UV lamps also shows weak fluorescence, as the test stone is placed on the UV filter. Due to the viewing angle and the black surface of the "black light" UV filter, there is no misinterpretation by the viewer due to the bluish residual