Local Operation
3-13
1. Move the cursor to the command
of “EXT. V = ”. EXT.V = OFF_ COUPLE=AC_AMPLIFIER
2. Turn RPG to change the option from
OFF to ON, then press
ENTER. EXT.V = ON COUPLE=AC_AMPLIFIER_
3. The cursor moves to the command
line of “COUPLE = ” automatically. EXT.V = ON COUPLE=DC_LEVEL_CTL
4. Turn RPG to select DC_LEVEL_
CTL, then press
ENTER. EXT.V = ON COUPLE=DC_LEVEL_CTL_
When EXT. V=ON, COUPLE=DC_LEVEL_CTL, the output voltage
(Vout) will respond to the external control DC voltage level only. The
user cannot control Vout amplitude through the keypad on the front
panel, until EXT.V=OFF again.
WARNING
1. As COUPLE = AC_AMPLIFIER and the frequency of Vref is over
1000Hz, it might cause AC source damage. The user should obey
the formula if F>1000Hz :
Vref (pk-pk, V) × F (Vref, Hz) < 10000 VHz.
2. Because of the bandwidth limitation of AC source, the output may
distortion. Especially when external V reference consists of high
frequency composition.
3.6.3 WAVEFORM GENERATOR
The AC source provides the user with two independent sets of waveforms, A and B. Both of
the waveforms include sinusoidal, square, clipped sinusoidal, 30 sets of built-in waveforms,
and 6 sets of user-defined waveforms.
To set waveform A as square wave:
1. Move the cursor to the command of WAVE A. WAVE A= SINE_
2. Turn RPG to change the option to “SQR”, then
press
ENTER . WAVE A=SQR_
To set waveform B as clipped Sin wave, THD: 10 %
1. Move the cursor to command of WAVE B, WAVE B=CSIN_
choose “CSIN”.
2. Then, LCD display shows the MODE and MODE = AMP_ PERCENT = 0.0 %
PERCENT.
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