129
Settings and Other Information
This section lists all menu settings, data recording operation types, and other
relevant information.
Approximate recording times
The approximate recording times available with an SD memory card inserted
in the unit are as shown in the table below. The fi gures apply to a bit length
setting of 16 bit. With the 24 bit setting, times are about one third shorter.
The maximum time for a single recording operation is 1,000 hours. When
this limit is reached, recording is terminated automatically. The maximum
number of fi les that can be recorded in a single recording operation is 1,000
(including voice memo fi les and revolution speed fi les). When this number
is reached, recording is terminated automatically.
The available recording time differs depending on the type of SD memory
card. Please note that these are approximate values provided for reference.
2 GB SD memory card (Sampling frequency: ×2.56)
Number of
channels
Frequency range
100 Hz
500 Hz
1 kHz
5 kHz
10 kHz
20 kHz
1
1066 h
40 m
213 h
20 m
106 h
40 m
21 h
20 m
10 h
40 m
5 h
20 m
2
533 h
20 m
106 h
40 m
53 h
20 m
10 h
40 m
5 h
20 m
2 h
40 m
3
355 h
32 m
71 h
6 m
35 h
33 m
7 h
6 m
3 h
33 m
1 h
46 m
4
266 h
40 m
53 h
20 m
26 h
40 m
5 h
20 m
2 h
40 m
1 h
20 m
16 GB SD memory card (Sampling frequency: ×2.56)
Number of
channels
Frequency range
100 Hz
500 Hz
1 kHz
5 kHz
10 kHz
20 kHz
1
8533 h
20 m
1706 h
40 m
853 h
20 m
170 h
40 m
85 h
20 m
42 h
40 m
2
4266 h
40 m
853 h
20 m
426 h
40 m
85 h
20 m
42 h
40 m
21 h
20 m
3
2844 h
16 m
568 h
48 m
284 h
24 m
56 h
48 m
28 h
24 m
14 h
12 m
4
2133 h
20 m
426 h
40 m
213 h
20 m
42 h
40 m
21 h
20 m
10 h
40 m
Summary of Contents for DA-21
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