PAH, oil-in-water using UV fluorescence

enviroFlu-HC is the new generation of immersion sensors for measurement of oil-in-water. The used measuring principle of UV fluorescence is much more sensitive than the conventionally used infrared scattering or absorption method. This allows to determine even the slightest traces of PAH's, for example in drinking water and cooling water condensates. Application areas include the petrochemical industry, leakage detection in cooling and wastewater streams as well as environmental monitoring. The devices enable both stationary use in shafts, flows or piping, and mobile use through an optional hand-held measuring instrument. An innovative coating reduces fouling of the optical measuring window and minimizes the maintenance.

Without sampling and preparation of test samples
Real time sensor
Without reagents
High sensitivity and selectivity
Optical window with nano coating

Measurement technology -

light source: Xenon flash lamp + filter (254 nm)
detector: Photo diode + filter (360 nm)

Measurement principle - Fluorescence
Parameter - PAH, oil
Measurement range -

enviroFlu-HC 500
PAH: 0...50 ppb, 0...500 ppb
Oil: 0...1.5 ppm, 0...15 ppm typical
enviroFlu-HC 5000
PAH: 0...500 ppb, 0...5000 ppb
Oil: 0...15 ppm, 0...150 ppm typical

Detection limit -

enviroFlu-HC 500 0.3 ppb
enviroFlu-HC 5000 0.5 ppb

Measurement accuracy - ± 5 % FS
Reproducibility - ≤ 0,5 % FS
Turbidity compensation - NO
Data logger - No
T100 response time - ≤ 10 s
Measurement interval - ≥ 5 s
Material -

Housing: Stainless steel (1.4571/1.4404) or titanium (3.7035)

Parameter Name	Parameter Value
Measured physical value	turbidity
Other characteristics	with analog output