Parker XRF, Instruction Manual

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XRF Analyser Manual
6
5 Chemical compatibility
The XRF Analyser is only intended to measure liquid hydrocarbons, such as lubricating oils
and fuel samples.
Any liquids that are chemically incompatible with polyester may breach the Mylar film used
to retain samples and destroy the X-ray detector.
6 Technical specification
6.1 Sulphur measurement precision
The Parker Kittiwake XRF Analyser is factory calibrated according to ISO 8754 and makes
field sulphur concentration measurements that correlate strongly with ISO 8754 laboratory
measurements. The repeatability of the instrument, established at three different sulphur
concentrations using accepted laboratory and statistical techniques, is actually better than
that provided in ISO 8754. Given this information, the reproducibility of the unit should also
be no worse than that stated in ISO 8754.
1 19 out of 20 repeated measurements fall within the stated range for each sulphur concentration.
2 Measured instrument repeatability.
3 Inferred instrument reproducibility.
Rated Input Voltage 9 V D.C.
Operating temperature 15 to 30 °C
Operating humidity < 70 %
Instrument weight 4.5 kg
Test time 130 seconds (typical)
Unit dimensions 212 mm (w) × 258 mm (h) × 258 mm (d)
X-ray tube 40 kV, 100 µA
Detector type Silicon drift
Measurable elements Sulphur, calcium, titanium, vanadium, chromium,
manganese, iron, nickel, copper, zinc, molybdenum,
silver, cadmium, lead
Sulphur conc. / %
1,2
Repeatability / %
1,3
Reproducibility / %
0.500 ± 0.010 ± 0.037
1.000 ± 0.017 ± 0.065
3.000 ± 0.045 ± 0.179