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Gold Testing Machines For Assaying Centres : XAN 220

Gold testing machine in assaying centres: XAN220 is available in various technical specifications these are widely used for fast and non-destructive analysis and coating thickness measurement of gold and silver alloys. These are optimized X-ray fluorescence measuring instruments, acclaimed for compact size and consistent performance.

These are widely used for the analysis of precious metals and their alloys in composition and coating thickness and used for the measurement of up to 24 elements in the range of chlorine (17) to uranium (92). Our products are extensively acclaimed for its excellent accuracy and long term stability.

These are admired for high functional efficiency, time saving quality and effective usage. Owing to its good detection sensitivity and high accuracy, these are widely recommended by large numbers of clients.

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Gold Testing Machine : XAN 220

These are user-friendly bench-top instruments available in various housing size and support stage.

These are extensively recommended by clients owing to its quick and easy sample positioning.

These are available in different range including XAN 220 and XAN 222, which are fitted with small parts and for quick and easy sample positioning.

The X-ray source and semiconductor detector assembly is located in the instrument‘s lower chamber.

These are straightened with the integrated video microscope with zoom and crosshairs simplifies sample placement and allows precise measuring spot adjustment.

These are operated through the powerful and user-friendly WinFTM® software.

The FISCHERSCOPE X-RAY XAN 220 is designed as per DIN ISO 3497 and XAN 222 fulfill ASTM B 568 standard.

Typical fields of applications:

Jewellery, precious metals and dental alloys

Yellow and white gold

Platinum and silver


Alloys and coatings

Multi layer coatings

General Specification

Intended use:Energy dispersive X-ray fluorescence measuring instrument (EDXRF) to

analyze 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 hood opening upwards

Measuring direction:Bottom-up

X-Ray Source

X-ray tubeMicro focus tungsten tube with beryllium window

High voltageThree steps: 30 kV, 40 kV, 50 kV

Aperture (Collimator):Ø 1 mm (39 mils), optional Ø 2 mm (79 mils) or Ø 0.6 mm (23.6 mils)

Measurement spot:Aperture diameter plus 200 μm (8 mils), at measurement distance MD = 0mm

X-Ray Detection

X-ray detectorSilicon Drift Detector (SDD), peltier-cooled

Resolution (fwhm for Mn-Kα)≤ 160 eV

Measurement distance:0 … 20 mm (0 … 0.8 in) Distance compensation with patented DCM method

for simplified measurements at varying distances. For particular applications

an additional calibration might be necessary.

Sample Alignment

Sample positioningManually

Video microscopeHigh-resolution CCD color camera for optical monitoring of the measurement

location along the primary beam axis,Crosshairs with a calibrated scale (ruler)

and spot-indicator,Adjustable LED illumination of the measurement location

Zoom factorDigital 1x, 2x, 3x, 4x

Sample support stage

XAN 220XAN 222

DesignFixed sample supportManual operable X/Y-stage

Usable sample placement area310 x 320 mm (12.2 x 12.6 in)310 x 320 mm (12.2 x 12.6 in)

Max. sample weight13 kg (29 lb)2 kg (4.4 lb)

Max. sample height90 mm (3.5 in)174 mm (6.8 in)

Electrical Data

Power supplyAC 115 V or AC 230 V 50 / 60 Hz

Power consumptionMax. 120 W, without evaluation PC

Protection classIP40


XAN-220XAN 222

External dimensions
Width x depth x height [mm]
403 x 588 x 365 mm403 x 588 x 444 mm

(16 x 23.2 x 14.4 in)(16 x 23.2 x 17.5 in)

WeightApprox. 45 kg (99 lb)Approx. 45 kg (99 lb)

Environmental Conditions

Temperature: Operation10 °C – 40 °C / 50 °F – 104 °F

Temperature:0 °C – 50 °C / 32 °F – 122 °F


Admissible air humidity≤ 95 %, non-condensing

Evaluation Unit


SoftwareStandard: Fischer WinFTM® BASIC including PDM®,

Optional: Fischer WinFTM® SUPER


XAN-220XAN 222

CE approvalEN 61010EN 61010

X-Ray standardsDIN ISO 3497 and ASTM B 568DIN ISO 3497 and ASTM B 568

ApprovalFully protected instrument with type approval according to the German regulations "Deutsche Röntgenverordnung-RöV".Individual acceptance inspection as a fully protected instrument according to the German regulations "Deutsche Röntgenverordnung-RöV".

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