Fashion Jewellery Testing Machine

Application

Analysis of Jewellery, precious metals and dental alloys Yellow and white gold
Gold Watches
Used in Gold Manufacturing, Assaying and Refinery.
Platinum and silver
Fashion Jewellery
Alloys and coatings
Multi layer coatings

Design

Fixed Sample Support

For quick and easy sample positioning, the X-ray source and semiconductor detector assembly is located in the instruments lower chamber. The measuring direction is from underneath the sample, which is supported by a transparent window. The integrated video-microscope with zoom and crosshairs simplifies sample placement and allows precise measuring spot adjustment.

General Specification

Intended use Energy dispersive X-ray measuring instrument (EDXRF) to analyze Gold, precious metals and their alloys in composition and coating thickness.
Element range Chlorine (17) to Uranium (92) up to 24 elements simultaneously
Repeatability 0.5 for gold

Measurement time 60 sec

Design Bench top unit with upwards opening hood

Measuring direction Bottom up

X-Ray Source

X-ray tube Micro-focus tungsten tube with beryllium window

Aperture (Collimator) 1 mm (39 mils), optional 2 mm (79 mils) or 0.6 mm (23.6 mils)
Measurement spotAperture diameter plus 200 m (8 mils), at measurement distance MD = 0 mm

X-Ray Detection

X-ray detector Silicon Drift Detector (SDD), peltier-cooled Resolution (fwhm for Mn-K) 160 eV

Measuring distance 0 25 mm (0 1 in)

Distance compensation with patented DCM method for simplified measurements at varying distances. For particular applications or for higher demands on accuracy an additional calibration might be necessary

Dimensions

External dimensions Width x depth x height 403 x 588 x 365 mm (16 x 23.2 x 14.4 in)
Weight Approx. 45 kg (99 lb)