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2 Installing the Instrument
EQUIPMENT DAMAGE. Under no circumstances can the peak float voltage applied
ever exceed the specified float limit, even if the RMS voltage is less than implied by
the graph; for example, when a dc float voltage is combined with a time-varying
component.
Load Inductance Limitations
EQUIPMENT DAMAGE. The unit's internal voltage clamps may be thermally damaged
when the output is abruptly turned off at full load current if the lead inductance
exceeds the Maximum Load Inductance listed under
As a wire inductance reference point, a single pair of load leads typically yields between 500 nH to 1
μH per meter of paired length (round trip), depending on the gauge of wire, thickness of insulation, and
mechanical coupling of the leads. To attain greater lead lengths, wire inductance can be minimized by
paralleling additional bundled sets of load leads or using specialized low inductance wiring.
Load Capacitance and Lead Inductance Considerations in Constant Voltage (CV) Operation
In CV operation, both in voltage priority mode and in current priority mode (when in voltage limit), the
setup typically resembles that in the following figure where the DUT is of a resistive or high impedance
nature and may have some local bypass capacitance near its own terminals. Remote sensing at the
DUT terminals is recommended if accurate dc voltage regulation is required.
RP797xAand RP798xA
80
RP7984A
Keysight RP7970 & RP7980 Series Operating and Service Guide
Supplemental
characteristics.
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