Keysight Technologies N6705C, Operating And Service Manual

Page: 64 / 476

The local OVP function tracks the programmed OVP setting and trips if the voltage at the + and -
output terminals rises more than 1.5 V above the programmed OVP setting. The local OVP also trips if
the voltage at the output terminals exceeds 7.5 V on the 6 V range and 21.5 V on the 20 V range.
Output Noise Considerations
Any noise picked up on the sense leads will appear at the output terminals and may adversely affect
CV load regulation. Twist the sense leads or use a ribbon cable to minimize the pickup of external
noise. In extremely noisy environments it may be necessary to shield the sense leads. Ground the
shield at the power analyzer end only; do not use the shield as one of the sensing conductors.
The noise specifications documented in the Keysight N6700 DC Power Analyzer Family Specifications
Guide apply at the output terminals when using local sensing. However, voltage transients may be
produced at the load by noise induced in the leads or by load current transients acting on the
inductance and resistance of the load lead. If it is desirable to keep voltage transient levels to a
minimum, place an aluminum or tantalum capacitor, with an approximate value of 10 µF per foot (30.5
cm) of load lead, right across the load.
2 Installation
64 Keysight N6705C Operating and Service Guide