Instruction manual

140
Specifications
Applicable standards
General measurements, precision sound level meters
IEC 61672-1:2002 Class 1, IEC 61260:1995 Class1
ANSI S1.11 Type1D,
JIS C 1509-1:2005 Class1, JIS C 1514:2002 Class1, JIS C 1513:2002 Class1
IEC 60651 and IEC 60804 was withdrawn and replaced by IEC 61672-1.
JIS C 1505 was withdrawn and replaced by JIS C 1509-1.
Measurement functions
Dual measurement in main and sub channel (single input processed under two sets of
parameters)
Real-time 1/1-octave analysis and 1/3-octave analysis in main channel
Processing functions
1) Instantaneous value L
p
, equivalent continuous sound pressure level L
eq
, sound ex-
posure level L
E
2) Maximum sound pressure level L
max
, minimum sound pressure level L
min
* 3) Waveform peak hold L
peak
* 4) Takt-max sound pressure level L
tm3
, L
tm5
Taktmaximalpegel Mittelwert: DIN
Power averaged maximum sound pressure level in a measuring period
5) Percentile sound pressure level L
x
(L
1
, L
5
, L
10
, L
50
, L
90
, L
95
, L
99
)
Functions 1) through 4) are performed simultaneously. Functions marked with aster-
isk* are valid only for sub channel.
Function 5) allows up to five values from 1 to 99 for simultaneous processing
Measurement time
1 to 99, units: seconds, minutes, hours
Manual measurement
Continuous measurement until stop key is pressed (up to 99 hours)
In L
x
processing mode, processing time must be set to 10 s or higher
Reference sound pressure level
85 dB