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6.3 Gain setting
6.3.1 Coarse adjustment
The gain is adjusted coarsely on three amplification stages (stages 1 - 3). DIP switches are
assigned to each amplification stage. Multiplying the gain factors set on each stage results in
the total coarse gain V
Total
(also refer to Chapter 4.1.3.1 titled Mounting rail version Page 13).
Stage 1:
The gain can be set with DIP switches S1 – S2.
1
10
100
Only factors of 1, 10 and 100 are available here. It is not possible to combine these factors,
forexample, to obtain 110.
Stage 2:
The gain can be set with DIP switchesS3 – S10.
0.25
0.5
0.75
1
2
4
8
16
32
The gain factor here can be adjusted with a resolution of 0.25. The switches can be set in any
required combination to obtain, for example, a gain of 33.25.
Stage 3:
The gain here can be set with DIP switches S13 – S14.
2
4
6
8
Only factors of 2, 4, 6 and 8 are available here. Combinations are not possible.
The specified gain factors always refer to the 10-V output. The 5-V output and current output
are derived from the 10-V output and are available simultaneously. During subsequent fine
adjustment, only the output requiring the highest degree of precision is observed. The maximum
deviation at the remaining outputs is then 0.2%.
The switch settings are described in detail in Chapter 4.1.3 titled Meaning of the DIP switches
Page 13.