Table of Contents
Advertisement
Frequency
Weighting
Network
Time
weighting
(Fast & Slow)
Data hold
Function selector
SPL
DOSE
Frequency
Microphone
type
Microphone
size
Characteristics of A & C.
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.
Fast - t = 125 ms
* "Fast" range is simulated the human ear
response time weighting.
Slow - t = 1 s
* "Slow" range is easy to get the average
values of vibration sound level.
To freeze the measurement value.
Auto range：30～130dB.
Threshold Level(Thr)：70～90dB in 1dB steps.
Criterion Level(Crit)：80、84、85、90dB.
Exchange Rate
31.5 to 8,000 Hz.
Electric condenser microphone.
Out size, 12.7 mm DIA. ( 1/2 inch).
3
：3, 4, 5 or 6 dB
Advertisement
Table of Contents
