The measurement principle of the online oil in water (PAH) sensor is based on the fluorescence properties of PAH, which makes the fluorescence method more efficient, faster and more reproducible than several commonly used methods. Online real-time monitoring is possible. The sensor comes with a cleaning brush, which eliminates air bubbles and oil and reduces the interference of staining on the measurement, resulting in longer maintenance intervals and excellent stability for long-term online use. It can be used for monitoring and early warning of oil contamination in water.

Product Features

✅Digital sensor, RS485 output, standard MODBUS protocol.

✅Online measurement of PAH (oil) content in water by UV fluorescence method, high sensitivity.

✅Imported high-precision UV LED light source, high stability, small drift, long life.

✅Built-in calibration parameters, convenient for on-site use and secondary calibration.

✅With self-cleaning brush, to prevent microbial adherence, longer maintenance cycle.

Technical parameter

Name	PAH Sensor(Low range)	PAH Sensor(High range)
Model	YCH301-L	YCH301-H
Principle	Ultraviolet fluorescence method	Ultraviolet fluorescence method
Range	0-1100ppb(BTEX)、0-1000ppb(PAH)	0-60ppm(BTEX)、0-100%RFU
Accuracy	±5%FS	±5%FS
Resolution	0.01ppb	0.01ppm
Linearity	R2 > 0.99(Continuous dilution of standard solutions)	R2 > 0.99(Continuous dilution of standard solutions)
Protection Level	IP68	IP68
Output Signal	Support RS-485/Modbus protocol	Support RS-485/Modbus protocol
Operating Temp.	0-50℃	0-50℃
Assembly	Input Type	Input Type
Power Supply	DC 12V, current < 50mA	DC 12V, current < 50mA
Cable Length	5 meters (default),Customizable	5 meters (default),Customizable
Housing Material	316L/Titanium	316L/Titanium
Dimension	Φ50*176.3mm	Φ50*181.3mm

Product Advantages