X-Ray Fluorescence Measuring Instruments
Optimized for Fast, Cost-effective and Non-destructive
Analysis of Jewelry, Coins and Precious Metals
High end retail showrooms, small assaying
The X-ray fluorescence measuring instruments of the GOLDSCOPE SD series are optimized
for fast, cost-effective and non-destructive analysis of jewelry, coins and precious metals.
Furthermore, the instruments are well suited for determining the thickness of gold coatings
on sterling silver and rhodium coatings on gold alloys.
The GOLDSCOPE SD series comprises four different instruments to fulfill the specific
demands from the fast purchase and sale of gold up to the high-precision analysis of
Typical fields of application are the analysis of:
• Jewelry, precious metals and dental alloys
• Yellow and white gold
• Platinum and silver
• Alloys and coatings
Outstanding accuracy and long-term stability are characteristics of all X-RAY systems from
FISCHER. The necessity of recalibration is considerably reduced, saving time and effort.
The GOLDSCOPE SD 515 instruments are equipped with a modern silicon PIN
detector, which achieves high accuracy and good detection sensitivity.
The fundamental parameter method by FISCHER allows for the analysis without calibration.
The GOLDSCOPE SD instruments are designed as user-friendly bench-top instruments. Due
to their compact design, the instruments are lightweight and require only little space.
For quick and easy sample positioning, the X-ray source and detector assembly is located in
the instrument‘s 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 for a precise measuring spot adjustment.
The entire operation and evaluation of measurements as well as the clear presentation of
measurement data is performed on a PC, using the powerful and user-friendly WinFTM® software.
All GOLDSCOPE SD instruments fulfill DIN ISO 3497 and ASTM B 568.
Intended use Energy dispersive X-ray measuring instrument (EDXRF) to analyze precious metals
GOLDSCOPE SD 515: Bench top unit with upwards opening hood
Measuring direction: Bottom up
Power supply and consumption: AC 115 or 230 V, 50/60 Hz, max. 120 W without evaluation PC
Protection class: IP40
Operating temperature: 10 °C – 45 °C / 50 °F – 113 °F
Storage/Transport temperature: 0 °C – 50 °C / 32 °F – 122 °F
Relative humidity: ≤ 95 %
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
Software: WinFTM® optimized for GOLDSCOPE SD, including Gold Setup GOLDSCOPE with
measuring applications for gold and jewelry
CE approval: EN 61010, EN 61326
X-Ray standards: DIN ISO 3497 and ASTM B 568
Approval: Fully protected instrument with type approval according to current
radiation protection legislation
Design: Fixed sample support
Max. sample weight [kg/lb] : 13/29
Usable sample placement area[mm/in]:310 x 320/
12.2 x 12.6
Max. sample height [mm/in]: 90/3.5
External dimensions, Width x depth x height [mm/in]:403 x 588 x 365/16 x 23.2 x 14.4
Weight [kg/lb]: approx. 45/99
X-Ray Source:X-ray tube Tungsten tube, thermally stabilized
High voltage, three steps: 30, 40, 50 kV
Max. anode current: 1 mA
Primary filter, Material and
thickness [µm/mils]: none
Aperture (Collimator)Ø [mm/mils]: Fixed Standard 1,0/39
1.0/39 or 2.0/79
Smallest measurement spot*
Ø [mm/mils]: approx. 0.7/28*
* depends on the measuring distance and on the aperture, the actual measurement spot size
is shown in the video image
Detector type: Silicon PIN detector peltier-cooled
Resolution fwhm for Mn-Kα [eV] ≤ 180
Element range: S (16) to U (92)
Measuring distance [mm/in]: 0 – 25/0 – 1, 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.
Repeatability for gold,measurement time 60 sec: ≤ 1 ‰with aperture 1.0 mm
Incl. Gold Setup GOLDSCOPE with factory-calibrated measuring applications for gold and jewelry
Special GOLDSCOPE SD product modification and technical consultation on request
WinFTM® is a registered trademark of Helmut Fischer GmbH Institut für Elektronik und Messtechnik, Sindelfingen – Germany.
Windows® is a registered trademark of Microsoft Corporation in the United States and other countries.