CIANFLONE 2501XBT, Инструкция по эксплуатации и безопасности

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1. INTRODUCTION AND DESCRIPTION
1-1
1.1. The Model 2501 X Series Portaspec
®
is a bench top, wavelength dispersive,
x-ray fluorescence analyzer that performs nondestructive elemental analysis on a
variety of sample types. The 2501 X Series version of the familiar Model 2501
Portaspec is now computer controlled. The standard operating interface utilizes a
Windows
®
based touch-screen notebook computer.
The control software is simple and intuitive in function and offers a continuous record of
analysis. It has a calibration mode that allows for a linear or quadratic fit for an almost
unlimited number of standards. It also includes a specialized analysis mode designed
to measure pretreatments on metal substrates.
The Portaspec is suitable to analyze from very small specimens to a maximum
specimen of 2-9/16 inches in diameter by 1 inch thick. The Portaspec has an x-ray
tube which focuses a beam diameter of 0.75 inches on to the specimen under analysis,
yielding superior statistical data compared to instruments using a micro spot x-ray tube.
This is notably important when analyzing pretreatments on galvanized steel substrates.
The new controller circuit board interprets and executes commands from the computer
to turn x-rays on and off, set x-ray tube current and read counts on the digital scaler.
An mA stabilizer board provides constant current to the x-ray tube. Also new to the
2501 X Series Portaspec, is a lightweight, high frequency, constant potential high
voltage power supply, providing a high level of instrument stability at 10, 20 or 30 kV
output, and from 0 to 5mA.
The Portaspec can be configured to a number of input voltages, 50 or 60 hertz and
features a modular component design.
1.2. The Model 2501XBT Portaspec
®
comes configured with a goniometer capable
of analyzing K
α
elemental lines whose range include element 22 Ti to 47 Ag and L
α
lines from 56 Ba to 92 U.
The Two-Position Sample
Holder enables you to load or
unload one sample while
analyzing another. The
samples are not loaded over
the x-ray port, keeping sample
contamination out of the x-ray
path. The sample holder can
accepts samples up to 2-9/16
inches in diameter by 1 inch
thick.
The Portaspec is useful for
analyzing powders, liquids,
solids and thin films, as well
as coating weight and thickness
analysis.
Model 2501XBT
Image 1-1