NF HVA4321, Instruction Manual

Page: 81 / 152

4.2 Operation example in constant current mode (total)
HVA4321
4-25
Figure4-32. Using external oscillator
c) Using external DC bias signal source
Connect the DC standard power supply to EXT DC BIAS INPUT and make sure that the output of the
standard power supply is 0V. Turn ON the external DC bias ON/OFF switch and press ON of the SIGNAL
switch.
While reading the value on the voltmeter or oscilloscope connected to the voltage monitor, increase the
output level of the DC standard power supply gradually and set the desired voltage.
Figure4-33. Using external DC bias signal
High voltage display
When the output voltage exceeds ±130V to ±150V, the high voltage output LED lights and starts
rotation slowly. The higher the output voltage is, the faster the rotation is.
When the voltage exceeds ±4.9 kV, the color changes from orange to red.
Gain adjustment with RESPONSE
The gain of 200 kHz band or more may vary depending on the RESPONSE knob position. Refer to
"5.3 Characteristics in constant voltage mode, Chapter 5".
When the frequency is used at 200 Hz or more, measure the output voltage of the voltage monitor and
adjust RESPONSE so that the desired amplitude may be obtained.
ON
OFF
SI GNAL
OFF
0に する。
極性 を選ぶ。
ON にする。
ONに する。
希 望のレベ ルに
調 整する。
ON
NORMAL
I NVER
GAI N
真 上にする。
GAI N
微調整 する。
Set to 0
Select polarity Turn ON
Press ON
Adjust it to the
desired level.
Make fine
adjustment
Set to TOP
Oscillator
ON
OFF
SI GNAL
OFF
0にする。
ON にする。
ON にする。
希望のレベルに
調整する。
ON
Set to 0
Turn ON
Press ON
Adjust it to the
desired level.
DC standard power supply