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Programmable AC Source 61501/61502/61503/61504 User’s Manual
2-4
2.6 Procedures of Power-on
WARNING
Before turning on the instrument, all protective earth terminals, extension
cords, and devices connected to the instrument must be connected to a
protective earth ground. Any interruption of the protective earth
grounding will cause a potential shock hazard that could result in
personal injury.
Apply the line power and turn on the power switch on the front panel. The AC source will do
a series of self-tests. The LCD on the front panel will light up and display as below:
Meanwhile, the AC source does the memory, data and communication self-test. After the
routines of the self-test be done, the display shows the MODEL number, and the serial
number of the AC source, and it shows an “OK” at the right side of each test item indicating
that the item is no problem. It takes about six seconds to complete the routines of the
self-test. Then the display shows the versions of software as below.
If any failure is detected on a certain item, an “ERROR CODE” will be shown at the right side
of that item. The error messages and trouble-shooting are shown on 7.2. The test item " 3.
REMOTE " shows " < EMPTY>, if the option board (with GPIB and RS-232) is not connected.
After finishing memory, data and communication self-test, the AC source do the power output
self-test. In this procedure, the output relays are in OFF status to sure not harming the load
connecting on output terminal. The AC source will output and measure the voltage. If the
voltage is abnormal, the power self-test is failed, and the display will show "NG". If it's
normal, the display is shown as below as well as it changes to MAIN PAGE automatically.
OUTPUT SELF TEST < OK >
MODEL : 61502 SERIAL NO : 123456
1. DISPLAY
< OK > Ver : 1.01
2. WAVEFORM
< OK> Ver : 1.02
3. REMOTE
< OK >
Ver : 1.03
SELF TEST
WAIT . . . . . .
Summary of Contents for 61501
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