Fluke 5700A Series, Руководство оператора

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16
Front Panel Keys (cont.)
<a>
These keys are the output adjustment controls. If
any of these keys are pressed, or if the knob is
turned, a digit on the Output Display becomes
highlighted. Turning the knob adjusts the output
value. An error display appears on the Control
Display, showing the difference between the
original (reference) output and the new (adjusted)
output.
The
<
and
>
keys move the highlight to the
digit you wish to change. In the ac functions, the
a
key allows you to move amongst voltage,
current, and frequency. In practice, for voltage and
current outputs, the knob and arrow keys are used
to adjust output until the UUT reads correctly. The
error display shows the UUT deviation from the
reference.
r
During local operation, pressing
r
aborts the
current operating state of the Calibrator and
returns the Calibrator to the power-up default
state. (This key is not effective during remote
operation.)
S
Identifies a UUT full-scale endpoint for checking
linearity, and does not change the output. If the
output was adjusted with the rotary knob,
subsequent keyed-in output values are multiplied
by a scale factor. Scaling is deactivated by
pressing
S
again, or by selecting another
function. Scaling is not available for resistance
outputs.