SINUS Tango Plus, Руководство пользователя

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1 DESIGN
1.6 Calculated values
Tango_Plus can calculate several sound levels as well as full and 1/3 octaves. Data can be stored up to an
amount of 32 MB.
1.6.1 Calculated sound levels
Level Description
L
AF
Sound pressure level, frequency weighting A, Fast (125 ms time constant)
L
AFmax
Level maximum of L
AF
for the entire measuring period (on the display) or of the last storing interval (stored data)
L
AFmin
Level minimum of L
AF
for the entire measuring period (on the display) or of the last storing interval (stored data);
only available by Tango-Utilities .
L
AS
Sound pressure level, frequency weighting A, Slow (1 s time constant)
L
ASmax
Level maximum of L
AS
for the entire measuring period (on the display) or of the last storing interval (stored data)
L
ASmin
Level minimum of L
AS
for the entire measuring period (on the display) or of the last storing interval (stored data);
only available by
Tango-Utilities
.
L
CF
Sound pressure level, frequency weighting C, Fast (125 ms time constant)
L
CFmax
Level maximum of L
CF
for the entire measuring period (on the display) or of the last storing interval (stored data)
L
CFmin
Level minimum of L
CF
for the entire measuring period (on the display) or of the last storing interval (stored data);
only available by Tango-Utilities .
L
AImax
Maximum sound impulse level, frequency weighting A
L
Cpeak
Peak value of the C-weighted sound pressure level
L
Apeak
Peak value of the A-weighted sound pressure level
L
Aeq
Equivalent continuous sound pressure level for the entire measuring period (on the display) or of the last storing
interval (stored data), frequency weighting A
L
Ceq
Equivalent continuous sound pressure level for the entire measuring period (on the display) or of the last storing
interval (stored data), frequency weighting C
L
Ceq
- L
Aeq
Difference of the values L
Ceq
and L
Aeq
L
AE
Sound exposure level, frequency weighting A
L
AFT
Maximum L
AF
of the last 5 s interval.
L
AFTeq
Equivalent continuous sound pressure level calculated from the L
AFT
levels during the entire measuring period
according to DIN 45645-1
L
AFTeq
- L
Aeq
Difference of the values L
AFTeq
and L
Aeq
L
AIeq
Equivalent continuous sound impulse level, frequency weighting A
L
AIeq
- L
Aeq
Difference of the values L
AIeq
and L
Aeq
L
Cpeak> n
Time in which the L
Cpeak
exceeded n dB
L
AF
n
Percentile levels can be calculated from the L
AF
(
n
= 1, 2, 3). There are 7 standard percentiles (1, 5, 10, 50, 90,
95, 99), but also user defined percentiles are possible.
Table 1.1: Calculated sound levels
NOTICE!
All sound level values may only be reset by manual Start/Stop operation
and the integration time for the equivalent continuous sound pressure levels
may only be set with this operation.
NOTICE!
All integrated sound levels listed in table 1.1 can be displayed on the device
immediately after finishing a measurement/integration.
1.6.2 Calculated spectra
Tango_Plus can calculate full and 1/3 octaves. A, C or Z weigthing may be applied. The frequency range is:
10 Hz - 20 kHz. The storage interval defines the number of individual spectra, that are linear averaged.
Manual Tango_Plus 10 of 47 SINUS Messtechnik GmbH