BNC 6040 - Manual (Page 22)

22
OPERATING INFORMATION
RESET Button
The RESET pushbutton initiates a power-on sequence. This resets the microprocessor board which in
turn resets all hardware to its power-on settings.
115 V/ 230 V SELECTION SWITCH AND FUSE
This switch allows operation on either 117 V ac (U.S.) or 234 V ac (European), as well as giving the
fuse value for that line setting (1.5 A 3AG Slo-Blo for 117 V, 0.75 A 3AG Slo-Blo for 234 V). Below this
switch are the line cord and fuse receptacles. The switch is factory preset and should not be moved
unless a new line voltage is used. Note that a new fuse value is required as well for a new line voltage.
FRONT PANEL PROGRAMMING
General
Menus and Parameter Selection
The front panel control of the 6040 has been optimized for ease of use and understanding. The control
and modification of the operating Mode, states and parameters are realized by a set of control keys.
Some of these keys have a single parameter or state associated with them (such as the STORE key),
while others have a menu of selections (for example, the MODE key).
For menu keys, the user can sequence through the selections by successively asserting the given key.
A menu item is chosen simply by stopping at that item. So that the user may see what selection is in
effect on another key without altering the setting, sequencing - is done only on repeated assertions of a
key. So, for example, the first time the MODE key is pressed, it will simply display the active Mode.
Only when it is pressed a second time (without pressing another key) will it cycle to the next Mode
selection.
WARNING: To avoid accidental shock, unplug the line cord and turn the power off before
checking or replacing the fuse. For protection against fire, use only the specified fuse value. Do
not attempt to bypass or repair the fuse.
CAUTION: Before plugging the instrument into a 234 V ac line, be sure the selection switch is
set to 230 V and a fuse of proper value is in place. Do not move this switch while the power is
on.