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Fischer measurement Technologies (India) Pvt. Ltd.


The high-end measurement system GOLDSCOPE SD 550 was developed specifically for high-precision analysis of precious metals as required for Hallmarking and assay offices. GOLDSCOPE SD 550 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. 


  • These are user-friendly devices acclaimed for compact size and consistent performance.
  • Our devices are acclaimed for their quick and easy sample positioning and consistent performance.
  • These are fitted with the X-ray source and semiconductor detector which are further located in the instrument‘s lower chamber.
  • Engineered under the firm direction of experienced quality controllers, these are fitted with the integrated video-microscope with zoom and crosshairs simplifies sample placement which further allows precise measuring spot adjustment and ensures clear presentation of measurement data on a PC with the help of powerful and user-friendly WinFTM® software.
  • These are designed and developed in accordance with German regulations "Deutsche Rontgenverordnung-röv"


Typical areas of application are:

Precious Metal Analysis such as analysis of Gold, Silver, Platinum and its alloys along with detection of PGM group elements such as Iridium, Ruthenium, Osmium, Rhenium, Tin and Lead.

  • Measurement of functional coatings, starting from a few nanometers
  • Analysis of alloys with highest requirements of accuracy in the jewelry and watch
  • Industries and in metal refineries
  • Research in universities and in the industries

General Specification


  • Intended use:Energy dispersive X-ray fluorescence measuring instrument (EDXRF) to determine thin coatings and alloys
  • Element range:Aluminum (13) to Uranium (92), up to 24 elements simultaneously
  • Design:Bench-top unit with hood opening upwards opening hood
  • Measuring direction: Bottom-up

X-Ray Source

  • X-ray tube: Micro focus tungsten tube with beryllium window
  • High voltage: Three steps 10 kV, 30 kV, 50 kV
  • Aperture (Collimator):4x changeable: Ø 0.2 mm (7.9 mils), Ø 0.6 mm (23.6 mils), Ø 1 mm (39.4 mils)
    , Ø 2 mm (78.7 mils), others on request.
  • Primary filter: 6x changeable: Ni, free, Al 1000 μm (39.4 mils); Al 500 μm (19.7 mils);
    Al 100 μm (3.9 mils); Mylar® 100 μm (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. Ø 0.3 mm (11.8 mils)

X-Ray Detection
  • X-ray detector: Silicon Drift Detector (SDD), peltier-cooled
  • Resolution (fwhm for Mn-Kα):≤ 160 eV
  • Measurement distance: 0 … 25 mm (0 … 1 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 positioning: Manually
  • Video microscope: High-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.
  • Zoom factor: Digital 1x, 2x, 3x, 4x

Electrical Data

  • Power supply:AC 115 V or AC 230 V 50 / 60 Hz
  • Power consumption: Max. 120 W , without evaluation PC
  • Protection class: IP40






External dimensions
Width x depth x height [mm]

:403 x 588 x 365 mm


(16 x 23.2 x 14.4 in)
Approx. 45 kg (99 lb)

Environmental Conditions

  • Temperature Operation:10 °C – 40 °C / 50 °F – 104 °F
  • Temperature Storage/Transport: 0 °C – 50 °C / 32 °F – 122 °F
  • Admissible air humidity:≤ 95 %, non-condensing
Evaluation Unit
  • Computer:Windows®-PC
  • Software:Standard: Fischer WinFTM® BASIC including PDM®,
  • Optional: Fischer WinFTM® SUPER






CE approval

:EN 61010

X-Ray standards

:DIN ISO 3497 and ASTM B 568


Fully protected instrument with type approval according to the German regulations "Deutsche Rontgenverordnung-RoV".