Fluke 5522A Operators, Руководство оператора

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5522A
Operators Manual
4-48
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3. Press the
E
key to enter the offset and then
P
.
Editing and Error Output Settings
All Calibrator outputs can be edited using the front panel Edit Field knob and associated
L
,
W
, and
e
keys. In addition, multiply
X
and divide
D
keys edit the
output by decades. The difference between the original output (reference) and edited
output is displayed as an “error” between the two settings. This allows you to edit a value
to achieve a correct reading at the UUT and thereby calculate an error in
±
% or ppm
(parts per million) if it is less than
±
1000 ppm. Table 4-2 lists the actions that cause the
calibrator to exit the error mode and return to the original reference output, or to output a
new reference, as selected.
Table 4-2. Keys That Exit Error Mode
Keys Action
E
Returns to the previous reference value.
I
or
E
Establishes a new reference.
A new keypad entry +
E
Establishes a new reference.
N
Establishes the present output as a new reference.
X Sets the calibrator to ten times the reference value and establishes a new
reference.
D Sets the calibrator to one-tenth the reference value and establishes a new
reference.
R Returns to the power-up state.
How to Edit the Output Setting
When you initially source an output from the Calibrator, you enter a specific value. For
example, 10.00000 V dc. To edit the output value to suit your application, turn the front
panel Edit Field knob clockwise to increase the value or counter-clockwise to decrease
the value. (The Edit Field controls will not operate if you are in any setup function. Press
the
P
key one or more times to exit a setup function.)
To select a higher order digit, use an Edit Field cursor key
L
or
W
. The output digit
in edit is always underlined (see below).
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The momentary display of the letter u in the Output Display when editing during OPR
(Operate) indicates “unsettled,” that is, the Calibrator output is settling with a new value.