Table of Contents
Advertisement
Macro 900 Operation Manual
15.7. PT 1557 Refined Oil (Hydrocarbon) Probe
Refined fuels such as benzene, toluene, ethylbenzene, and xylenes (BTEX)
measured by the MAP 2000/2100 using the optional PT 1557 Refined Oil
(Hydrocarbon) optical probe.
15.7.1.
Principle of Operation
The PT 1557 Refined Oil (Hydrocarbon) optical probe is a submersible, fixed
response fluorometer, which provides excitation at 285nm (deep UV) and
detects any resultant fluorescence between 320nm and 380nm.
The probe induces the aromatic hydrocarbons within the refined oil to fluoresce,
then measures the longer wavelength light which is emitted as a result of the
fluorescence process.
During operation, the Refined Oil Probe emits high intensity
ultraviolet (UV) light, which is harmful to skin and eyes.
UV light is hazardous to skin and may cause cancer. Avoid
exposure to UV light when the Probe is in operational.
Precautions must be taken to avoid looking directly at the Probe
without the use of UV light protective glasses.
Do not look directly at the lenses on the front face of the Probe
when it is operational.
Ensure the warning label supplied with the Probe is attached to
the Macro Accessory Probe.
15.7.2.
Limitations of Use
Determination of refined oil in the field using fluorescence measurement
techniques will never be as accurate as measurements made in a lab using
either Gas or Liquid Chromatography.
Factors adversely affecting accuracy include:
Interference from other compounds (such as flour and some bacterial
spores which fluoresce at similar wavelengths).
© 2013 Palintest Ltd.
www.palintest.com
V3
can be
Page 87 of 147
Advertisement
Table of Contents
Troubleshooting
