Maintenance instructions flow sensor

Dirt particles (e.g. dust, lint, soot, pollen, rust particles, grease, lime deposits, but also additives such as lubricants or similar) in the air or water flow can cause deposits on the sensor elements, which can impair and change the response behavior. As a result, the reaction times for detecting flow become longer, the sensor reacts less sensitively, and possibly this also leads to switching point shifts or failure. In order to avoid these problems and a failure of the plant, you should determine appropriate maintenance intervals based on the prevailing operating conditions depending on the degree of contamination. Accordingly, in case of heavier contamination, it is necessary to check and, if necessary, clean more often. For an easier cleaning of the sensors we recommend to clean them by means of our Screw-in adapter which allows easy and quick removal of the sensor. We recommend the following procedure for cleaning the sensors:

  1. Loosen cable connections
  2. Dismantle flow sensor
  3. Flow sensor for approx. 10 min. (depending on the contamination and type of deposits) place in lukewarm soapy water or vinegar cleaner
  4. Carefully rinse the flow sensor with lukewarm water
  5. Mount flow sensor in dry condition
    Caution: In the case of sensor F8, the potting compound of the sensor can absorb water. The sensor must dry completely before being put back into operation. Please do not leave the probe in the cleaning solution for longer than 10 minutes. If the potting compound is not completely dry, strongly deviating measured values may be displayed.
  6. Put the flow monitor back into operation and, if necessary, adjust the potentiometer of the evaluation electronics.