Description
The MESA-7220 is based on the latest advances in Energy Dispersive X-ray Fluorescence (EDXRF) technology. It features diffractive optics for ultra high performance for low atomic elements – specifically S and Cl – in oils and other fluids. This approach is critical for a user to achieve the ultra low noise background for the best limits of detection for S, Cl, and other elements.
The MESA 7220 is a specialized, compact XRF workstation that offers superior measurement of S and Cl in petroleum-based products. MESA 7220 technology is based on the latest tube and detector technologies in Energy Dispersive X-ray Fluorescence (EDXRF) and utilizing closely coupled monochromatic, polarized EDXRF analysis techniques. It was developed specially for HORIBA Scientific Elemental Analyzers Product Line utilizing Olympus field-proven EDXRF technology that originated from on-board oil and fuel analysis specially built for the marine shipping industry.
Quick & Accurate
Typical test times are 3 minutes per sample for less than 50 ppm concentrations
Less than 2 minutes per sample for concentrations above 50 ppm
Detection limits for S and Cl are in the low ppm level with an upper range in the % level
Simultaneous multielement determination capability
New technology eliminates oxygen interference that can vary results significantly
Easy
Touchscreen graphical user interface displays all the important functions for routine operation at a glance
USB ports allow a supervisor to easily plug in a keyboard and mouse to handle more complex tasks
Clean
Unlike some methods for S and Cl, the MESA 7220 models are low maintenance and do not require furnaces, conversion gases or micro syringes.
Specifications
X-Ray Tube
Air-cooled, Ag anode x-ray tube; 0-12.5 kV; 0-2 mA
Monochromator
A closely coupled, doubly curved HOPG crystal is used to reflect the Ag La excitation radiation for optimal excitation of S and Cl resulting in significantly improved analytical performance. The sample chamber is under vacuum to further enhance sensitivity.
Si Drift Detector
Stable peak positions and spectral resolution (<165 eV) up to an input count rate of 90,000 cps.
Limit of Detection.
0.5 ppm wt/wt
Dynamic Range
0.5 ppm – 10% wt/wt
Vacuum Chamber Window
User replaceable 7.5 ?m Kapton, protected by an expendable safety window between it and the sample cup window
Sample volume
5 mL
Computer
Powerful Pentium processor, embedded WindowsTM XP OS and sealed, field-hardened color touch screen (8.4″, 800×600 pixels) capable of clearly displaying calibration curves
Two user interface levels.
Simple, touch screen interface for supervisor setup.
Password protected, keyboard driven interface for supervisor setup
80 GB hard drive and 1 GB of RAM
Two USB 2.0 ports: one on teh back adn one on the side, PS2 Connection and a direct Ethernet connection to the web for customer support located on the rear panel.
Software
Allows users to create calibrations using their own standards methodology for system monitoring and preventive maintenance including onscreen diagnostics for all operating parameters.
An intuitive touch screen based, user interface.
Ability to add new functionality
Included Accessories and Options
Printer
Optional Keyboard and Mouse for convenient programming
Dimensions and Operating Requirements
Nominal input voltage: 120-240 V +/- 10%AC, 50/60 Hz, 125 W
Dimensions: W x D x H: 330 x 508 x 41 mm (13 x 20 x 16 inches)
Weight: 21 kg (45 lbs)
Ambient operation temperature: -25?C to 40 ?C
Relative humidity at 25 ?C (77?F): 0 to 95%
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