Fluke Data Acquisition System/Data Logging System 2680A - Manual (Page 15)

Getting Started
Configuring the 268XA
5
Reviewing and Setting the Line Frequency
Perform the procedure below to review or set the line frequency. Line frequency
selection allows the device to optimize internal circuitry for best accuracy. (See
Figure 2 for examples.)
•
Line Frequency Choices Select 50 Hz or 60 Hz as the frequency of the
primary power when an ac source powers the device.
Table 2. Reviewing and Setting the Line Frequency

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.

Press the up/down arrow keys until LinE (Line Frequency) appears in the

primary display (comm appears in the secondary display).

Press the ENTER key. LinE appears in the secondary display and the current
LinE frequency setting is in the primary display.

For Line Frequency set procedures, press the up/down arrow keys to select

50 (Hz) or 60 (Hz) line frequency (current setting appears bright).

Press the ENTER key to exit. (Pressing any other function key will cancel set
operations.)