PAH Sensor for Marine Scrubbers Wash Water Monitoring System
Overview
Desun Uniwill is delighted to introduce its newly developed PAH Sensor. The PAH Probe is a fluorimeter that accurately and continuously measures the concentration of Polycyclic Aromatic Hydrocarbons (PAHs) in water. These PAHs result from the incomplete combustion of petroleum and are present in most mineral oils or fuels. The sensor measures the sum of the PAHs passing in front of the lens, detecting and measuring PAHs from 0 to 1000 ppb (µg/L).
Desun Uniwill PAH Measurement Sensor operates on the principle of UV fluorescence, which is much more sensitive than the conventionally used infrared scattering or absorption method. This enables the determination of even the slightest traces of PAHs, for example, in drinking and cooling water condensates. Application areas include the petrochemical industry, leakage detection in cooling and wastewater streams, as well as environmental monitoring. The Fluorescence PAH Oil Probe can be used stationary in shafts, flow, and pipelines. PAH probes connect to controllers for data display and recording. It features an RS-485 interface that allows easy and fast sensor configuration via Modbus.
Technical parameter:
| Product Name | PAH Sensor |
| Model | DS810 |
| Certificate | CE |
| Principle | Fluorescence Method |
| Range | 0-100ppb 0-1000 ppb 0-5000 ppb ( Can be customized) |
| Detection Limit | 5ppb |
| Accuracy | ±5%FS |
| Response time | <10s |
| Minimum test intervals | 5s |
| Interface | RS-485, Modbus RTU |
| Power supply | 12-36VDC |
| Power consumption | < 1.0 W |
| Size(L*W*H) | Φ160mm*50mm |
| Dimensions (L x Ø) | |
| Weight | 900g |
| Protection Level | Ip68 |
| Storage temperature | -20-80°C |
| working temperature | 0- 50°C |
| Inflow velocity | 0.1-10 m/s |
| Housing Material | SS316/ Titanium |
Measuring Principle
The measuring principle is based on the fluorescent properties of PAHs. Mineral oils rich in aromatic content will fluoresce when illuminated with ultraviolet light. The intensity of this fluorescence depends on the polyaromatic hydrocarbon (PAH) content of the oil. Typical oils that fluoresce include fuel oil, crude oil, hydraulic oil, and transformer oil. Each oil has its unique fluorescence intensity resulting from its specific PAH content. PAHs are integral parts of most mineral oil products and are a very specific indicator of oil contamination in water bodies and process water.
MakeWebEasy