Oil on Water
Fluorescence
The oil on water monitor model FLUCOmat detects the UV- stimulated fluorescence causd by unsaturated hydrocarbons in oil. These method of monitoring allows to detect extrem low quantities of oil under the sensor. The instrument can not provide a reading in ppm or mg/l typically because it scans the water surface only, water depth and speed of flow are not detected but these process parameters are required to receive absolute measurement values. A measurement in ppm, mg/l, eic. is possible in Bypass only.
Infrared reflection
The oil on water monitor model IRmat detects the IR- reflection caused by oil films located at water surfaces. These method of monitoring allows to detect low quantities of oil under the sensor. The instrument can not provide a reading in ppm or mg/l typically because it scans the water surface only, water depth and speed of flow are not detected but these process parameters are required to receive absolute measurement values. A measurement in ppm, mg/l, eic. is possible in Bypass only.
Ultrasonic Reflection
Turbidimetry is based on an optical effect, therefore the ultrasonic reflection measurement is strictly spooken not a turbidity measurement. Ultrasonic pulses are transmitted into the measured liquid. Particles inside the liquid reflect this pulses. The particle concentration is calculated by intensity and quantity of the reflected pulses. This method offers some advantages compared with the method of the classical optical turbidimeters. Examples are measurements in opague liquids, or liquids which will cause extreme coatings at the measurement windows of optical turbimeters (mineralic coatings at oil in condensate measurements, oil and fat coatings if you measure oil in water or particle detection in black ink).
|
