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This guide is designed to familiarize users of the Keithley Model 2304 High
Speed Power Supply with the basic operating features available from the instru-
ment’s front panel and via the GPIB Bus. The sequence of instructions reflects the
order in which the instrument would be configured for a typical application. As
users become more familiar with the Model 2304, it may not be necessary to follow
this sequence so strictly. For each Model 2304 operating mode, an example set of
bus commands is provided. For a reading to be performed and returned via the bus,
the :read? command must be sent after the instrument is configured to the desired
mode. While the SCPI command strings are generic, the exact programming syntax
will depend on the programming language used in the test environment.
Figure 1.
Model 2304 front panel
The Model 2304 has three operating (display) modes:
> ACTUAL V AND I — This mode reads back the actual output voltage
and current. The instrument defaults to this mode at power up.
> DVM INPUT — This mode displays the DC voltage applied to the
power supply’s DVM input.
> PULSE CURRENT — This mode is used to display high, low, or average
pulse-current measurements or to return up to 5000 measurements
from the measurement buffer, i.e., for digitizing a current waveform.
1
Setting the output voltage and current limit:
Output voltage can be set from 0 to 20V. There are two ranges for current
output — 5A and 5mA. The current range can be checked or changed using the
CURRENT RANGE selection of the MENU.
3
H I G H S P E E D P R E C I S I O N R E A D B A C K P O W E R S U P P L Y
POWER
2304 HIGH SPEED POWER SUPPLY
DISPLAY
OPERATE
ENTER
SET
MENU
LOCAL