|
Display
|
3½digits LCD,resolution:0.1dB
|
|
Standard applied
|
IEC61672-1 Class2, ANSI S1.4 Type2
|
|
Frequency range
|
31.5Hz~8KHz
|
|
Measuring level range
|
30~130Db
|
|
Measurement item
|
SPL (sound pressure level)
|
|
Frequency weighting
|
A/C
|
|
Microphone
|
½inch electret condense microphone
|
|
Time weighting
|
Fast (125ms) ,Slow (1sec)
|
|
Level ranges
|
Lo:30~80dB Med:50~100dB Hi:80~130dB
|
|
Accuracy
|
±1.5dB (under reference conditions)
|
|
Dynamic range
|
50dB
|
|
Alarm function
|
•OVER is showing when input is more
than upper limit of range
•UNDER is showing when input is less
than lower limit of range
|
|
MAX/MIN hold
|
hold readings the
Maximum or Minimum value
|
|
AC output
|
1Vrms at FS (full scale)
|
|
DC output
|
10Mv/dB output impedance Approx. 100Ω
|
|
Output impedance
|
Approx. 50Ω FS:
means the upper limit of each level range
|
|
Low battery indication
|
replace battery as LCD display
|
|
DC adapter
|
voltage 9V DC (8~13 VDC Max)
|
|
supply current
|
>30m ADC
|
|
Dimension
|
280x80x32mm (LxWxH)
|
|
Weight
|
about 300g (including battery)
|
