HP 6633B - Manual (Page 38)

5 - Front Panel Operation
38
Function Keys
Refer to the examples later in this chapter for more details on the use of these keys.
FUNCTION
Input
Meter
OV
Voltage
OCP
Current
Cal
Output
Prot Clear
Protect
Output
on/off
Figure 5-3. Function Keys
Immediate Action Keys
Immediate action keys immediately execute their corresponding function when pressed. Other
function keys have commands underneath them that are accessed when the key is pressed.
This key toggles the output of the dc source between the on and off states. It
immediately executes its function as soon as you press it. When off, the dc source
output is disabled and the Dis annunciator is on.
Press this key to reset the protection circuit and allow the unit to return to its last
programmed state. The condition that caused the protection circuit to become
active must be removed prior to pressing this key, or the unit will shut down
again and display the Prot annunciator again. (If FS protection is displayed on
the front panel, the unit must be opened and an internal fuse replaced as
described in the Service manual.)
Press this key to toggle between OCP enabled and disabled. If OCP is enabled
the output will become disabled if the output mode changes from CV to CC
mode. The OCP annunciator indicates the state of OCP.
Scrolling Keys
Scrolling keys let you move through the commands in the presently selected function menu.
Press to bring up the next command in the list. Press to go back
to the previous command in the list. Function menus are circular; you can return
to the starting position by continuously pressing either key. The following
example shows the commands in the Input function menu:
CURR:RANGE
CURR:DET
Output
On/Off
Prot Clr Shift
OCP Shift
p q • ‚
q
q