Local Operation
3-11
or
Vout (ac) = Vref (ac) / 7.072 Vac × 300 Vac (300V RANGE)
Vout (ac) = Vref (ac) / 7.072 Vac × 150 Vac (150V RANGE)
Example (1): set Vout to 100Vdc:
1. Select RANGE = 300V in SETUP functional list, apply external V=
2.357Vdc, the Vout = 100Vdc.
2. Select RANGE = 150V in SETUP functional list, apply external V=
4.715Vdc, the Vout = 100Vdc.
Example (2): set Vout to 100Vac:
1. Select RANGE = 300V in SETUP functional list, apply external V=
2.357Vac, the Vout = 100Vac.
2. Select RANGE = 150V in SETUP functional list, apply external V=
4.715Vac, the Vout = 100Vac.
DC_LEVEL_CTL: The output voltage (Vout (ac)) responses linearly proportional to the
controlled DC level with voltage ranging from -10 V to 10 V. Vout
can be calculated using the following formula:
Vout (ac) = Vref (dc) / 10 Vdc × 300Vac (300V RANGE)
Vout (ac) = Vref (dc) / 10 Vdc × 150Vac (150V RANGE)
Example (1): set Vout to 100Vac:
1. Select RANGE = 300V in SETUP functional list, apply external V=
3.333Vdc ( or -3.333Vdc ), the Vout = 100Vac.
2. Select RANGE = 150V in SETUP functional list, apply external V=
6.667Vdc (or -6.667Vdc ), the Vout = 100Vac.
The procedures of setting EXT. V = ON, COUPLE = DC_LEVEL_CTL, are described as
below:
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 EXT.V = ON COUPLE=DC_LEVEL_CTL
line of “COUPLE = ” automatically.
4. Turn RPG to select DC_LEVEL_ EXT.V = ON COUPLE=DC_LEVEL_CTL_
CTL, then press ENTER.
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.
1. As COUPLE = AC_AMPLIFIER and the frequency of Vref is over
1000Hz, it might cause AC source damage. The user should obey
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