NF HVA4321, Instruction Manual

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4.2 Operation example in constant current mode (total)
HVA4321
4-26
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It is very dangerous during output of high voltage. Never touch the output cable or the high voltage area.
If you find a dangerous status due to a unit error or load error, turn OFF the POWER switch immediately.
4.2.5 Signal OFF
a)
Input signal OFF
To set the output signal to 0V temporarily, press OFF of the SIGNAL switch.
When SIGNAL is OFF, the output voltage is 0V, but the internal high voltage DC power supply is ON. It
continuously gives high voltage output.
In this status, never touch the output cable or the high voltage area for safety.
b)
Internal high voltage DC power supply OFF
When the HIGH VOLTAGE POWER SUPPLY switch is turned OFF, the output of the internal high
voltage DC power supply is 0V and the amplifier cannot give high voltage output.
WARNING
WARNING