Keithley 2303, User Manual

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1-6 Getting Started
Remote display option
If the power supply must be mounted in a location where the display is not readily visible or
the controls are not easily accessible, the optional Model 2304-DISP Display Module can be
used. This display module includes all instrument controls and has a 9 foot cable so the power
supply can be operated remotely from a more convenient location.
NOTE
When the remote display is attached to a Model 2303B, the power supply acts like a
Model 2303.
The remote display module plugs into the rear panel connector labeled “REMOTE DISPLAY
OPTION” (see Figure 1-1B). When plugged in, the main display module is disabled with the
following message displayed:
REMOTE PANEL
ENABLED
When the remote display module is unplugged, control returns to the main display module.
NOTE When connecting or disconnecting the 2304-DISP remote display, allow a few sec-
onds for the power supply to recognize the action. Fast, repeated connects/discon-
nects of the remote display may cause the power supply to hang or appear to hang.
Disconnecting the remote display and waiting a few seconds to reconnect it may clear
the problem. If not, cycling power on the power supply clears the condition.
Power-up
Line power connection
The power supply operates from a line voltage in the range of 100 to 240V at a frequency of 50
or 60Hz. Line voltage and frequency are automatically sensed, therefore there are no switches to
set. Check to see that the line power in your area is compatible. Use the :SYSTem :LFRequency?
query (Section 10) to read the line frequency.
Perform the following steps to connect the power supply to the line power and turn it on:
1. Before plugging in the power cord, make sure the front panel power switch is in the off (0)
position.
2. Connect the female end of the supplied power cord to the AC receptacle on the rear panel.