Hach-Lange FP 360 sc User Manual - Manual (Page 8)

8
General information
2.2 Product overview
The FP 360 sc sensor is a UV fluorimeter used to continuously measure the concentration
of PAH (polycyclic aromatic hydrocarbons) in water. The measurement values can be
converted to reflect the total oil content for mineral oils using lab data.
The sensor may need to be installed with additional accessories depending on its area of
application.
Do not apply the sensor to any hard mechanical effects.
2.3 Measuring principle
The measuring principle is based on the fluorescent properties of PAHs. After excitation
caused by UV rays, PAHs emit light with longer wavelengths after a short time delay. The
intensity of this light is measured. This measuring principle is considerably more sensitive
than absorption and scattered light measurement. It is possible to detect even the slightest
trace of PAH contamination in water. PAHs are integral parts of most mineral oil products
and are a very specific indicator of oil contamination in water bodies and process water.
2.4 Product components
Each sensor is supplied with
• a connector cable with safety sleeve,
• a shackle,
• a basic user manual and
• a CD.
The sensor is available in a variety of types (refer to section 7.1 on page 27 ). Refer to
Figure 2 to make sure that all components have been received. If any of these items are
missing or damaged, contact the manufacturer or a sales representative immediately.
D A N G E R
This product is not suitable for use in potentially explosive atmospheres.
WA R N I N G
The UV rays from the flash bulb are harmful to eyes and skin. Do not look directly through the
measurement window during operation under any circumstances. Remove the measurement
sensor from operation before carrying out any maintenance or installation work.
Area of application Installation with Sensor variants
Open channels, shafts, tanks (solid
matter max. 200 mg/L)
Chain mount kit Sensor with or without cleaning unit
Measurement media without solid
matter with continuous, low sample
throughput
Flow cell Sensor without cleaning unit