Specifications - Lutron Electronics SL-4112 Operation Manual

2. SPECIFICATIONS

2-1 Electrical specification for Sound level meter
Function
Meter default
function
Measurement
Range
Resolution
Range selector
Frequency
Microphone type
Microphone size
Frequency weighting Characteristics of A & C.
network
dB ( A & C frequency weighting ), Time
weighting ( Fast, Slow), Hold, Memory
( Max. & Min. ), Peak hold, AC output,
RS232 output.
Range set to auto range.
Frequency weighting set to A weighting.
Time weighting set to fast.
30 - 130 dB.
0.1 dB.
Auto range :
30 to 130 dB.
Manual range :
3 range, 30 to 80 dB, 50 to 100 dB,
80 to 130 dB, 50 dB on each step,
with over & under range indicating.
31.5 to 8,000 Hz.
Electric condenser microphone.
Out size, 12.7 mm DIA. ( 0.5 inch).
* 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.
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