Gold Testing Machine XAN 250 XAN 250

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.

Product Specifications

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


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)