Idan ƙimar ƙarfin siginar Q da aka nuna a cikin M90 bai wuce 60 ba, ana ba da shawarar hanyoyin da za a bi don mafi kyau:

1) Matsar wuri mafi kyau.

2) Yi ƙoƙarin goge saman saman bututun, kuma amfani da isasshen mahaɗa guda biyu don ƙara ƙarfin sigina.

3) Daidaita wurin transducer a tsaye da a kwance;a tabbata tazarar masu fassara iri ɗaya ne da ƙimar M25.

4) lokacin da bututu abu bai dace da watsa siginar ultrasonic ba;an bada shawarar shigar da transducer mu mai zafi.