2
2. FEATURES
The Sound Level Meter complies with the requirements of IEC 61672-1:2003 standard
for a Class 2 instrument.
The instrument contains several features which permit sound level measurements
under a variety of conditions.
Features include:
Ease of use.
Easy to read large display.
Five measurement ranges.
Fast and Slow time weightings.
A and C frequency weightings.
Storage of up to 32000 measurement records.
RS-232 serial port for downloading records to a computer or real time analysis to a
computer.
Both AC and DC signal outputs are available from a single standard 3.5mm
coaxial socket suitable for use with a frequency analyzer, level recorder, FFT
analyzer, graphic recorder, etc.
3. MEASUREMENT PARAMETERS
The following parameters are used on the instrument.
A
→
“A” frequency weighting sound pressure level
C
→
“C” frequency weighting sound pressure level
FAST
→
Fast time weighting
SLOW
→
Slow time weighting
SPL
→
Current time-weighted sound pressure level
SPL
MAX
→
Maximum time-weighted sound pressure level
The various settings depend on the condition the instrument was in before it was last
turned off.