Description
- Analysis instrument, optimized for non-destructive analysis of jewelry, coins, gold and precious metals.
- Fixed aperture (collimator) and fixed primary filter
- Element range: Chlorine (17) to Uranium U (92), up to 24 elements simultaneously
- Measured results are displayed e.g. in karat, ‰ or weight %XAN 220 FISCHERCommon Process for Testing
DETAILS:
X-ray fluorescence measuring instrument for fast and non-destructive analysis of gold and silver alloys
FEATURES
- Optimized for non-destructive analysis of jewelry, coins and precious metals
- Fixed aperture and fixed filter; thus particularly suited for precious metal analysis
- With high-resolution silicon drift detector (SDD) also applicable for more complex analyses with many elements
- Measuring direction from bottom to top, this allows for quick and easy sample positioning
Typical fields of application
- Gold and precious metal analysis in the jewellery and watch industries
- Analysis of dental alloys
Long-term stability and outstanding precision – e.g. for XAN 220 better than 0.5 ‰ for gold – are benefits of the x-ray instrument. This significantly reduces the necessity for re-calibration, thus saving time, effort and cost of ownership. The measured results are immediately displayed and can be easily printed as a report. Operation is safe and easy – for experienced staff as well as for employees with little training.
There is no need for a special laboratory room for operating the instruments. The instrument fulfill DIN ISO 3497 and ASTM B 568.
| Specification | XAN 220 |
|---|---|
| External dimensions W x D x H [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 | Micro-focus tungsten tube with beryllium window |
| High voltage, three steps [kV] | 30, 40, 50 |
| Aperture (Collimator) Ø [mm/mils] |
Standard 1.0/39 Optional 2.0/79 or 0.6/24 |
| Smallest measurement spot Ø [mm/mils] | Approx. 0.7/28 |
| X-Ray Detection | |
| Detector type | Silicon Drift Detector (SDD), peltier-cooled |
| Resolution fwhm for Mn-Kα [eV] | ≤ 160 |
| Element range | S (16) to U (92) |
| Repeatability for gold, measurement time 60 sec |
≤ 0,5 ‰ with aperture 1.0 mm |
| Usable sample placement area [mm/in] | 310 x 320 / 12.2 x 12.6 |
| Max. sample height [mm/in] | 90/3.5 |
