AQ Elteknik AB Ultrasound Controller Manual 21
Electric interference can show itself as Edata being unstable with Air or Wdata being unstable with
liquid. To minimize the risk of interference it is important that sources of interference (like
frequency inverters) should use screened cables to the motor. Also any unscreened part of the
cable between the Level Switch and Ultrasound Controller should be short. If ex-barriers are used,
Ex-barriershields must be used especially if there is more than one Ultrasound Controller.
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