The overall design of EXF6900 is professional and mature, large chamber is designed for various nonstandard samples in jewelry industry, specialized in large material analysis. Detailed features: Analysis Elements: Au Ag pt PdRh Ru CuZn NiCd Analysis Range: 10%99.99% Test point dimension: 12mm Sample Case Size: 090 mm Spectrometer Size: L500 mm*W450mm*H350 mm Test Time: Confirm the elements in 13 seconds, operator could set the time for testing the elements in density.) Test Precision: +/-0.15% (The Precision could keep 0.15 after several repeated test) High Pressure Template:450Kv X-Ray Source: Mo Material X-ray light tube( Wind Cool, No radiation) Max. Power: 120W Weight: 35Kg Detector: Hermitic Proportional Counter with Micro processor Coated layer measurement: Coated layer thickness Range