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3 Getting Started
Using the Front Panel
Turn the Unit On
Set the Output Voltage
Set the Output Current
Set Over-voltage Protection
Enable the Output
Use Built-in Help System
Turn the Unit On
SHOCK HAZARD, LETHAL VOLTAGES Many models generate voltages greater than
60 VDC, with some models rated at 950 VDC! Ensure that all instrument
connections, load wiring, and load connections are either insulated or covered using
the safety covers provided, so that no accidental contact with lethal voltages can
occur.
Verify that the line cord is connected and plugged in.
Turn the unit on with the front panel power switch. The front panel display will light up after a few
seconds. A power-on self-test occurs automatically when you turn the unit on. This test assures you
that the power supply is operational.
It may take about 30 seconds or so for the power supply to initialize before it is ready
for use.
If the instrument does not turn on, verify that the power cord is firmly connected (power-line voltage is
automatically sensed at power-on). Also make sure that the instrument is connected to an energized
power source. If the LED next to the power switch is off, there is no AC power connected. If the LED is
amber, the instrument is in standby mode with AC power connected, and if it is green, the instrument
is on.
If a self-test error occurs, a message is displayed on the front panel. For other self-
test errors, see
instrument for service.
98
Service and Maintenance
for instructions on returning the
Keysight RP7900 Series Operating and Service Guide
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