Evident Olympus Vanta VCR Handheld XRF Analyzer - AlloyPlus, Refurbished

Olympus Vanta VCR handheld XRF analyzer with 3-beam 40 kV Rh C Series configuration

The Olympus Vanta VCR is a handheld X-ray fluorescence (XRF) analyzer designed for on-site elemental measurement of non-human materials. This refurbished VCR model is part of the Vanta C Series and is configured with a 4 W, 40 kV X-ray tube using a rhodium (Rh) anode and a silicon drift detector (SDD). The instrument supports alloy identification and elemental quantification across a wide concentration range using a staged excitation architecture.

Three-beam excitation architecture

This VCR configuration operates with a three-beam excitation structure designed to optimize energy distribution across light and transition elements commonly encountered in alloy analysis. The instrument automatically sequences three discrete tube voltage settings:

• Beam 1: 40.0 kV for excitation of higher atomic number elements.
• Beam 2: 13.0 kV for mid-range transition elements.
• Beam 3: 8.4 kV for lower atomic number elements such as Mg, Al, Si, P, and S.

This multi-energy architecture enables improved elemental separation and spectral clarity across broad alloy matrices where XRF measurement is applicable.

Measurement architecture and documented detection limits

The Vanta VCR utilizes an 8-position, auto-selected primary beam filtration system in combination with its 4 W Rh tube and silicon drift detector. The configuration is documented as capable of measuring elemental concentrations from parts-per-million (ppm) levels up to 100% concentration in alloy analysis mode.

Published Limits of Detection (LODs), calculated at a 3σ (99.7%) confidence level using 60-second test times per beam, include chromium (Cr) down to 40 ppm in Fe-base alloys, nickel (Ni) down to 40 ppm in Fe-base alloys, molybdenum (Mo) down to 7 ppm in Fe-base alloys, and niobium (Nb) down to 6 ppm in Fe-base alloys under defined test conditions. Actual detection limits vary depending on alloy matrix composition, measurement time, and elemental interferences.

Rugged C Series construction

• IP65-rated enclosure for dust-tight and water-jet protection.
• Drop-tested to MIL-STD-810G (4 ft / 1.3 m).
• Operating temperature range of -10 °C to 50 °C.
• Embedded GPS/GLONASS receiver for geo-referenced measurement records.
• 800 × 480 WVGA capacitive touch display with embedded Linux OS.

Applications

• Alloy identification and verification of metal components and fabricated parts.
• Elemental screening of industrial materials and manufactured components.
• Field documentation of measurement results with location data pairing.