Ametek 7280 Instruction Manual page 149

When the fast analog output mode is turned on (FASTMODE 1) and the instrument
is in dual harmonic or dual reference mode, the selection is according to the
following table:
n Slope
0 6 dB/octave
TC [n]
TC. Filter time constant control
The value of n sets the output filter time constant in accordance with the following
table:
FASTMODE = 0,
NOISEMODE = 0
n time constant
0 N/A
1 N/A
2 N/A
3 N/A
4 N/A
5 N/A
6 N/A
7 N/A
8 500 µs
9 1 ms
10 2 ms
11 5 ms
12 10 ms
13 20 ms
14 50 ms
15 100 ms
16 200 ms
17 500 ms
18 1 s
19 2 s
20 5 s
21 10 s
22 20 s
23 50 s
24 100 s
25 200 s
26 500 s
27 1 ks
28 2 ks
28 5 ks
30 10 ks
31 20 ks
32 50 ks
33 100 ks
N/A means that n is an illegal value under these conditions.
Chapter 6, COMPUTER OPERATION
FASTMODE = 1, FASTMODE = 0,
NOISEMODE = 0 NOISEMODE = 1
time constant time constant
1 µs N/A
2 µs N/A
5 µs N/A
10 µs N/A
20 µs N/A
50 µs N/A
100 µs N/A
200 µs N/A
500 µs 500 µs
1 ms 1 ms
2 ms 2 ms
4 ms 5 ms
10 ms 10 ms
20 ms N/A
50 ms N/A
100 ms N/A
200 ms N/A
500 ms N/A
1 s N/A
2 s N/A
5 s N/A
10 s N/A
20 s N/A
50 s N/A
100 s N/A
200 s N/A
500 s N/A
1 ks N/A
2 ks N/A
5 ks N/A
10 ks N/A
20 ks N/A
50 ks N/A
100 ks N/A
FASTMODE = 1,
NOISEMODE = 1
time constant
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
500 µs
1 ms
2 ms
4 ms
10 ms
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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