
3
SOUND LEVEL METER
Display
: LCD
Digital display
: 4 digits
Resolution: 0.1dB
Display Updata: 0.5 sec.
Time weighting
: FAST ( 125mS ), SLOW ( 1 sec. )
Level ranges
:
Lo: 30 - 80 dB
Med: 50 - 100 dB
Hi: 80 – 130 dB
Accuracy
:
±
1.5dB ( under reference conditions )
Dynamic range
: 50 dB
Alarm function
:
“ OVER ” is show when input is more than
upper limit of range.
“ UNDER ” is show when input is Less
than lower limit of range.
MAX / MIN hold
: Hold readings the Maximum and Minimum
Value.
AC output : 1 Vrms at FS ( full scale ).
output impedance : Approx. 50
Ω
FS: means the upper limit of each level
range.
DC output
: 10mV / dB , output impedance approx. 100
Ω
Power supply
: One 9V battery, 006P or IEC 6F22 or NEDA
1604.
Power life : About 50hrs ( alkaline Battery )
Содержание 2250
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