Compressed air contaminated by oil is the horror of every compressed-air user. Depending on the application, there is a risk for the production plant, the environment, or even for health.
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However, it is important for the user to be informed about the concentration level at all times. Sampling and laboratory evaluation are complex, expensive and represent nothing but a snapshot of a past moment in time. The Beko Instruments monitoring system Oil Control allows permanent oil-content monitoring of flowing compressed air. Measurement is carried out by means of an ion-exchange method, using a probe inserted into the flow on a special calibration section of pipe.
The sensitivity of the sensor guarantees immediate detection of increasing oil content, resulting, for example, from defective filters. The user is notified via a potential free signal that can be linked to an existing alarm system if required. This helps to successfully avoid consequential damage to machines, products or health. Therefore, compressed air as a production medium gains in reliability, with users avoiding unnecessary expenses, as the purchasing cost of an Oil Control monitoring system is significantly lower than the cost of a production stop.
There are three versions of the Oil Control system available: the Oil Control OCC for compressor monitoring up to 100 mg/m3; Oil Control OCF for the monitoring subsequent to compressed-air processing from 20 mg/Nm3 to 0.01 mg/Nm3; and Oil Control OCA for the monitoring of activated-carbon filters and catalytic converters from 1.0 mg/Nm3 to 0.001 mg/Nm3. The scope of delivery includes a probe, a measuring cell and evaluation electronics, as well as a calibrated pipe section.
In addition, data logger and software can be purchased separately. Oil Control corresponds to ISO 8573. It operates reliably in a temperature range between 0 and +60 °C, independent of varying flow conditions and unaffected by humidity. The allowable operating overpressure lies at 10 bar (as standard), 16 and 45 bar are also optionally possible.