DPA-2FX User Manual
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version 1.8
page 8
In the following description of the front panel elements each element has a number that is
related to that in Figure 4. The number is followed by the name (in uppercase letters) written
on the front panel and the type of the element (in lowercase letters). Then, a short description
of the element is given.
Signal OFFSET unit
The OFFSET unit consists of (
1
) OFFSET range switch and
(
2
) OFFSET potentiometer.
(
1
) OFFSET range switch
3-position switch for selecting the OFFSET range,
0.1 V,
1 V or
10 V.
(
2
) OFFSET potentiometer
10-turn potentiometer for compensating for a DC OFFSET.
Note
: The overall OFFSET compensation is the product of the reading of both controls.
Important
: Position 5 of the OFFSET potentiometer corresponds to 0 mV offset. The offset
compensation only works if the input coupling switch is set to DC. If the HIGHPASS
FILTER is used, the OFFSET control is disabled.
GAIN unit
The GAIN unit consists of (
3
) GAIN range switch and
(
4
) GAIN factors switch.
(
3
) GAIN range switch
3-position rotary switch for selecting the GAIN range, x1, x10 or x100.
(
4
) GAIN factor switch
7-position rotary switch for selecting the GAIN factor, x1, x2, x5, x10, x20, x50 or
x100.
Note
: The overall GAIN is the product of the reading of both controls.
