Front Panel Operation
Editing and Error Output Settings
4
4-53
4-45. Editing and Error Output Settings
All 5520A Calibrator outputs can be edited using the front panel Edit Field knob and
associated L, W, and e keys. In addition, multiply Xand 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 + 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.
4-46. Editing 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 Pkey one or more times to exit a setup function.)
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