This unit was designed according to the IEC651,TYPE2&ANSI S1.4 TYPE for sound level meters
Instantaneous sound measure function
digital sound level meter add358
feature
this unit was designed according to the iec651,type2&ansi s1.4 type for sound level meters
instantaneous sound measure function
measurement range:30-130 decibe
with two equivalent weighted sound pressure levels a and c
fast & slow dynamic characteristic modes
ac and dc signed oytput for frequency analyzer level recorder,fft analyzer,graphic recorder etc.
specifications
frequency range:31.5hz-8.5khz
linearity range:50db
measuring level:30-130dba 35-130dbc
frequency weighting:a,c
digital display:5 digits
resolution:0.1db
display:0.5 secretary
bargraph:50db scale at 1db step for mornitoring current sound pressure level display period:50ms
level ranges:30-80db;50-100db;60-110db;80-130db
ac output:0.707 vrms at fs output impendance appro x 600?
dc output:10mv/db output impedance approx 100?
time weighting:fast/slow
microphone:1/2 inch electret condenser microphone
selfcalibration time:10 sec(every turn on)
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