SC310
User’s Manual
105
These 2 types of recording are specially designed to obtain highly detailed temporal and
spectral information, and are ideal for the detection of tonal components.
•
L
T
(+) each T
: once each integration period T has come to an end, the following values are
stored in the memory:
o
L
T
for each of the one-third octave bands centred on frequencies 10, 12.5, 16,
20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800,
1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500,
16000 and 20000 Hz
This kind of recording coincides with T functions.
The following table shows the storage capacity of the different types of extended spectrum
analyser 1/3 mode recordings:
Type of recording
Storage capacity
T functions and L
T
(+) each T
T= 1 s
Î
9 days 8 hours
T= 1 min
Î
1 year 6 month
125 ms functions
1 day 4 hours
T fun 125ms
T= 1 s
Î
1 day 1 hours
T= 1 min
Î
1 day 4 hours
The storage times for each type of recording correspond to one single recording, until the
memory is completely full.
The SC310 has enought capacity for up to 1000 registers (final results or recordings) of
whatever type.
When the built-in memory is full, no more recordings may be made and no more final results
saved. If you attempt to do this, the 'MEMORY FULL' message will appear on screen. If the
memory reaches its maximum capacity before a recording has finished and the CIRCULAR
MEMORY option is inactive (see 8.8) data recording will stop, although measurement will
continue. When the measurement is complete, the final result will be stored in the memory.
8.7.4.2 Recording in FFT narrow band frequency analyser mode
The FFT narrow band frequency analysis from the SC310 sound level meter stores the
following data in the memory
•
L
T
for each FFT line
The following table shows the storage capacity:
Storage capacity
T= 1 s
Î
21 hours 39 minutes
T= 1 min
Î
1 month 24 days
The storage times for each type of recording correspond to one single recording, until the
memory is completely full.
