Model 2290-10 10 kV Power Supply User's Manual
Section 1: Introduction
2290-10-900-01 Rev. A/December 2013
1-5
POWER
button
Applies power to the instrument. The instrument always powers up with the high
voltage off. The current instrument configuration and any saved instrument presets
are stored in non-volatile memory. The serial number, firmware version, and model
number are displayed when power is turned on. If an error appears on power up,
the current instrument configuration and and any saved presets are lost, and the
default settings are used. To restore the default settings, hold down the clear button
(
CLR
) while turning on the power. Note that this will erase any saved parameters.
HIGH VOLTAGE
enable
switch
This is a three position switch. In the
OFF/RESET
position, the high voltage is off,
and all trips are cleared. In this position, the high voltage is locked off and cannot be
turned on by computer control. The
ON
position is a momentary-contact position
and turns on the high voltage for manual or rear panel analog control. Note that the
switch should be held in the
ON
position for at least a half second to turn the high
voltage on. In the middle position, the high voltage is enabled and can be turned on
by commands sent over a computer interface. The
ON
LED above the switch
indicates that the high voltage is on; the
TRIP
LED indicates a trip has occurred.
VOLTS (POSITIVE)
LED
display
Displays the output voltage.
Center LED display
Displays the value of the parameter that is entered or adjusted, including
Error and
status messages
that my occur.
µ
A
LED display
Displays the output current.
SELECT
,
ENTER
,
CLR
(Clear) button
The
SELECT
button is used to choose which parameter is being displayed in the
center display. The
ENTER
button enters the parameter shown in the center
display. The
CLR
(clear) button erases the value in the center display and recalls
the last value that was entered.
Numeric and cursor
buttons
All parameters are adjusted using the cursor or numeric buttons.
STATUS
indicators
Three LEDs indicate the instrument's status. The
LIMIT
LED is on when the unit is
in current limit. The
REM
LED is on when the unit is in remote, and the front panel
is locked out. The
REAR
LED is on when the high voltage is controlled by the
analog input.
RESET
button
Reset mode determines how the instrument responds after a voltage or current trip.
There are two modes:
MAN
and
AUTO
. In
MAN
(manual) mode the high voltage
remains off after a trip and requires that the operator manually turn it back on.
In
AUTO
(automatic) mode the unit waits until the output voltage has fallen to 2% of
its full-scale value and then turns the high voltage back on. This feature is useful
when dealing with loads that occasionally short circuit, but recover after high
voltage has been removed.
GPIB
button
The GPIB address button sets the GPIB primary address.
LOCAL
button
The
LOCAL
button takes the instrument out of remote and restores operation of
other front panel controls.
STO
and
RCL
buttons
STO
(store) and
RCL
(recall) allow up to nine complete instrument settings to be
saved in nonvolatile memory.
RCL
0 recalls the default settings.