Frequency
Characteristics of A & C.
Weighting
Network
A weighting :
The characteristic is simulated as "Human
Ear Listing" response. Typical, if making
the environmental sound level
measurement, always select to A
weighting.
C weighting
The characteristic is near the "FLAT"
response. Typical, it is suitable for
checking the noise of machinery (Q.C.
check) & knowing the sound pressure
level of the tested equipment.
Time
Fast - t = 125 ms
weighting
* "Fast" range is simulated the human ear
(Fast & Slow)
response time weighting.
Slow - t = 1 s
* "Slow" range is easy to get the average
values of vibration sound level.
Peak hold
To keep the Peak(max.) measurement value.
Function selector range
：
SPL
30-80dB, 50-100dB, 80-130dB
Auto range
：
30
～
130dB.
Frequency
31.5 to 8,000 Hz.
Microphone
Electric condenser microphone.
type
Microphone
Out size, 12.7 mm DIA. ( 1/2 inch).
size
3
