NF HVA4321, Инструкция по эксплуатации

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3.1 Signal system
HVA4321
3-2
3.1.3 External signal input
OSC INPUT
It is the BNC connector to give amplified input on this unit with an external
oscillator.
・ Rated input voltage ± 10 Vpk
・
Input impedance 10 k
Ω±
10%
GAIN
The signal gain given to OSC INPUT can be fine adjusted in the
range of approx.
±
3%.
It is turned with a flat tip screwdriver.
NORMAL/INVERT
The signal polarity in OSC INPUT is set.
In NORMAL, the input signal polarity is the same as the output
signal polarity.
In INVERT, the input signal polarity is reverse to the output
signal polarity.
Figure3-3. External signal input
ON/OFF
Valid or invalid signal in OSC INPUT is set. When it is ON, the signal in OSC INPUT is valid.
The input voltage range to OSC INPUT and EXT DC BIAS INPUT terminals is
±
10V.
3.1.4 Input signal ON/OFF
SIGNAL ON/OFF
Input to the amplifier area for INT DC BIAS, EXT
DC BIAS and OSC INPUT is switched ON/OFF.
When it is ON, each input signal is given to the high
voltage amplifier.
Figure3-4. Signal ON/OFF switch
！
CAUTION
ON
OFF I NVERT
NORMAL
GAI N
OSC
I NPUT
± 10V MAX
Zi n 10k Ω
SI GNAL
OFF ON