Fluke 9640A Series, Instruction Manual, Page: 47 / 324

Preparing the Instrument for Operation
Power-On Sequence
2
2-9
Power-On State
After completing the power-on self test, the Instrument enters the Standby state (output
off) as indicated by the illuminated  key on the far-right of the front panel.
At first power-on, the Instrument displays the following screen. Press

to obtain an
RF output. If no Leveling Head is connected, the Instrument remains in the standby state
(output off) and displays an error message.

Note that some Instrument settings are stored for recall at power down. If this is not the
first power-on sequence for the Instrument, the power-on screen may not match the one
shown here.
ead09f.bmp
First Power-On Screen
In particular, the Instrument may be found in a special GPIB command emulation mode
of operation. This mode, identifiable at the top left corner of the display, would prevent
normal GPIB operation. Instructions for selecting or deselecting the emulation mode are
given in Chapter 3, see GPIB Command Emulation . Instructions for the trial and purchase
of these options and entering of licence keys are also given.
ead14f.bmp
First Power-On Screen (GPIB emulation mode)