Preparing for Operation
Instrument Preparation
2
2-33
Reviewing and Setting the Line Frequency
Perform the procedure in Table 2-9 to review or set the line frequency. Line
frequency selection allows the instrument to optimize internal circuitry for best
accuracy. (See Figure 2-15 for examples.)
•
Line Frequency Choices
Select 50 Hz or 60 Hz as the frequency of the
primary power when an ac source powers the instrument.
Table 2-9. Reviewing and Setting the Line Frequency
F
Press the COMM key to review the Line Frequency setting, or press and hold
the COMM key for 3 seconds to set the Line Frequency.
C
B
Press the up/down arrow keys until LinE (Line Frequency) appears in the
primary display (COMM appears in the secondary display).
I
Press the ENTER key. LinE appears in the secondary display and the current
LinE frequency setting is in the primary display.
C
B
For Line Frequency set procedures, press the up/down arrow keys to select50
(Hz) or 60 (Hz) line frequency (current setting appears bright).
I
Press the ENTER key to exit. (Pressing any other function key will cancel set
operations.)
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