The HydroSense 4420-OCM oil in water sensor offers a low-cost approach to monitoring ppm concentrations of emulsified free oils in clean water. The 4420-OCM continuously monitors a clean water sample for oil leaks. The display, signal output, and alarm can be configured within the 0-250 ppm range. This oil in water monitor has an on-line alarm for oil presence in filtered effluent and cooling water.
The HydroSense 4420-OCM oil in water analyser uses a light scatter technique to respond to oil contamination in the water. A slip stream approach directs a continuous sample flow through the HydroSense unit and back into the process stream. While it passes through the sample cell a controlled light source is directed into the water. The emulsified oils in the water will scatter the light toward the light sensors placed strategically around the cell. The intensity of light energy is measured to provide an indication of the ppm concentration.
Combining many unique design features into a compact package makes the 4420-OCM an ideal solution to monitoring for oil leaks in your water system.
Operating Temp. 10˚C to 50˚C (optional to 90˚C)
Power Input 24 vdc or 110 vac or 220 vac
Alarm Relays 2 x 2 amp, SPDT, dry
Output 4-20 mA or RS-485
Standards UL, CSA, CE
Enclosure Type 4X polycarbonate, IP65
Range 0-250ppm, minimum alarm setpoint 3 ppm
Display Resolution 0.1 ppm
Instrument Accuracy +/- 0.1 ppm
Process Accuracy +/- 1.0 ppm under stable conditions
Oil Type All free and non-dissolved oils, > 2 micron
The 442-OCM oil in water analyzer’s performance is based on the site calibration to a known oil concentration in stable background water. Changes in oil make-up and background stability may affect the output. Through a simple calibration, this unit correlates well with laboratory ISO and EPA methods.