User guide

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◆◆ 2.1.2. ７e“ommen”ation of use of earphone
We re“ommen” using earphone while “he“king to re”u“e bur”en of “he“king. If you hear low soun” from earphone,
see s“reen.
２０-】20 automati“ally turns off after 5 minutes of no operation.
◆ 2.2 （he“king operation by button
◆◆ 2.2.1. ８ensing
󲔰 ５ush re” button.
󲔱 ２０-】20 “ontinues “he“king while you keep pushing re” button.
󲔲 After you release re” button, ２０-】20 in”i“ates ”ata you “he“ke” last.
󲔳 ２０-】20 start sensing again by se“on” push of re” button.
󲔴 ２０-】20 points sensing area by laser.
When you release re” button,
laser pointer stops.
◆◆ 2.2.2. ７ange swit“hing
󲔰 You “an swit“h range by pushing white button at sensing (=while you are pushing re” button ).
７ange swit“hing “annot be ”one while ２０-】20 is not sensing.
󲔱 ７ange swit“hing or”er is as follows.
AU９４→１(low)→２(mi””le)→H(high)→AU９４
󲔲 At AU９４ range setting, ２０-】20 swit“hes range from １. An” if sense” value is high, automati“ally swit“h range
to ２, an” to １.
At the “ase that you start “he“king again after you stoppe”, ２０-】20 (at AU９４ range setting) start sensing
at １ range.
󲔳 ７ange setting (AU９４，１，２，H) is kept after turning off.
２０-】20 starts sensing at range memorize” at previous sensing.
󲔴 固 In the “ase ２０-】20 ”isplays ４VE７ at fixe” range setting su“h as １, ２, an” H, it means s“ale-over.
８wit“h to higher range.
◆◆ 2.2.3. How to memorize ”ata
󲔰 ）ata is memorize” by pushing blue button while ”ata is hol” at i”le state.
）ata memorizing “annot be ”one at sensing state. (While you push re” button. )
󲔱 ２aximum memory volume an” memory “ontents
“ontents Maximum
volume
［Ｌ］ ）ouble frequen“y rate󲔫（onverte” value from of
”ouble frequen“y ultrasoun” to soun” pressure,
）ate of measuring
500
re“or”s
［Ｗ］ Waveforms of envelope” ultrasoun”, ＋＋T
spe“trum, Top 10 values󲔫）ate of measuring
10 sets
of
re“or”