NF ZA57630, Инструкция по эксплуатации

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3.2 Input and Output Connectors
3
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11
ZA 57630
Maximum driving current : 60 mArms (depends on the measurement range,
frequency etc.)
Output impedance : 50 Ω
(When HV DC bias is used, approximately 1 kΩ at approximately
100 Hz or less.)
■ Measurement connectors when power is off
The measurement connectors are connected to the internal circuits even when the power is off.
！
CAUTION
・
Do not apply a large external signal to the measurement connectors. Even when the power is
off, do not apply an external signal. There is a risk of damage to this instrument.
・
Do not connect a charged capacitor. If there is a possibility that the DUT may be charged,
discharge the DUT sufficiently before connecting it. If the DUT is discharged to the
measurement connectors, this instrument may be damaged.
3.2.4 DC BIAS OUT
This is an output connector for supplying DC bias to the DUT/EUT.
■ Signal specifications
Maximum output voltage : ±10 V
Output impedance : 600 Ω (nominal value)
Connector : Rear panel, BNC connector
Figure 3-6 Function of DC BIAS OUT Connector
When the connector to output DC bias is set to the
DC BIAS OUT
connector on the rear panel,
DC bias (DC voltage) is output from this connector. Only the AC component will be output by
the OSC connector on the front panel at that time.
For details on how to set the DC bias,
refer to “
4.3 Setting Measurement Signals
”.
The output impedance is 600 Ω whether output is on or off. The relay is always connected to
the internal output amplifier (the relay is always maintained in the on state) even when the
DC bias is set to OFF. Therefore, the output impedance is not changed by performing the
output on/off operation.
600 Ω
DC BIAS OUT
Relay
Output Amp