2
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
IMP
→
Impulse time weighting
SPL
→
Current time-weighted sound pressure level
Leq
→
Equivalent continuous sound level
SEL
→
Sound exposure level
SPL MAX
→
Maximum sound pressure level
SPL MIN
→
Minimum sound pressure level
PH
→
Peak Hold sound pressure level
L:05
→
5% percentile sound level
L:10
→
10% percentile sound level
L:50
→
50% percentile sound level
L:90
→
90% percentile sound level
L:95
→
95% percentile sound level
SPL “MAX”
→
Maximum time-weighted sound pressure level (MAX symbol blink)
The various settings depend on the condition the instrument was in before it was last
turned off.
4. SPECIFICATIONS
Applicable standards:
IEC61672-1: 2003 Class 2
ANSI S1.4 : 1983 Type 2
Measurement functions:
•
Main processing functions
Sound level: Current time-weighted sound pressure level A or current time-
weighted sound pressure level C
Maximum time-weighted sound pressure level A or Maximum time-weighted
sound pressure level C
Minimum time-weighted sound pressure level A or Minimum time-weighted
sound pressure level C
Equivalent continuous sound level Leq A or Leq C
Sound exposure level SEL A or SEL C
