Air flow sensor ALFA 1-IRS

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The ALFA 1-IRS is an energy-saving airflow detector which has been specially designed to detect airflow in air ducts. The ALFA 1-IRS was designed for use in car spraybooths, for example, to switch from the energy-saving ‘Standby’ position to a spray position which requires much more energy. The ALFA 1-IRS does this switch automatically and at precisely the right moment, so that maximum savings are achieved. It works as follows: when there is no air removal the outgoing relay contact is in the ‘Standby’ mode. When air removal through the spray valve is detected the ALFA 1-IRS immediately switches over to the ‘Spray’ mode. The instrument is fitted with an adjustable time delay mechanism, adjustable from 1 to 5 minutes, which illuminates the LED timer when the removal of air has ceased. Depending on the time set the ALFA 1-IRS switches to ‘Standby’. This avoids any unnecessary switching backwards and forwards that might result from short interruptions in spraying.