The high-end measurement system Fischerscope X-Ray XAN 250 was developed specifically for high-precision analysis of precious metals as required for Hallmarking and assay offices. Gold testing machine in assaying centres: XAN250 is engineered using best available techniques. These are high performance X-ray fluorescence measuring instruments widely used for fast and non-destructive material analysis and coating thickness measurement. Compact sized these devices are acclaimed for high performance, longer service life and accurate measurement.
Intended use
Energy dispersive x-ray fluorescence measuring instrument (EDXRF) to determine thin coatings, Gold Testing, Gold analysis, trace elements and alloys
Element range
Aluminium (13) to Uranium (92) up to 24 elements simultaneously
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) 4x changeable: 0.2 mm (7.9 mils), 0.6 mm (23.6 mils), 1 mm (39.4 mils), 2 mm (78.7 mils), others on request Primary filter 6x changeable: Ni, free, Al 1000 m (39.4 mils); Al 500 m (19.7 mils); Al 100 m (3.9 mils); Mylar 100 m (3.9mils) Measurement spot Depending on the measuring distance and on the aperture, the actual measurement spot size is shown in the video image. Smallest measurement spot: approx. 0.3 mm (11.8 mils) |
| X-Ray Detection | X-ray detector
Silicon Drift Detector (SDD), peltier-cooled Resolution (fwhm for Mn-K±) 160 eV Measuring distance 0….10 mm (0…0.4 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. |
| Sample Stage | Design
Fixed sample support Usable sample placement area 310 x 320 mm (12.2 x 12.6 in) Max. sample weight 13 kg (29 lb) Max. sample height 90 mm (3.5 in) |
| 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) |