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Rapid testing the lowest resonant frequency Fo value , complies with American EIA & ANSI stds., auto judging PASS / FAIL, suitable for use in production line、incoming parts inspection and quality control dept.

The Lowest Resonant Frequency Fo value is one of the important parameters of the loudspeaker, 7117C  can  automatically  & instantly  display  the  Fo value of  loudspeaker in digits, no manual searching is needed, moreover,  The Upper / Lower  limits  can  be set by 7117C,  auto  judge  the  PASS / FAIL,  very suitable  in  production  line  for 100 % Q.C. testing.  7117C  is  not  only  suitable  for loudspeaker firms, but also suitable for : incoming  inspection  of  the  loudspeaker by  the audio、 monitor、multimedia firms....etc.

　

■  Very fast in auto-searching the lowest  resonant  frequency,  Fo  value can  be displayed in just  1∼1.5  seconds.     

■  Upper / Lower limits  can be set, auto judge PASS / FAIL,  auto-searching  and  judging  time require only  0.3 ~ 0.7 seconds  

■  Displays in digits, accurate,  no  visual  error.  Complies with  ANSI & EIA std. of  U. S. A.

　

Specifications  of  Model - 7117C

  1. Frequency Range :

20 Hz ∼ 3 kHz， 4 Ranges :

  1. 16 Hz ∼ 80 Hz.

  2. 54 Hz ∼ 270 Hz.

  3. 180 Hz ∼ 900 Hz.

  4. 600 Hz ∼ 3 kHz.

  1. Tolerance : ≦ ± 1 % or ± 1 Hz .

  2. Test Voltage : 1 Vrms ±10%. ( According to EIA Std ).

  3. Load Impedance : 3.2 ∼ 100 Ω.

  4. Dimension : 37 ( L ) × 13 ( H ) × 28 ( D ) cm.

  5. Net Weight : 6 KGS.