Agilent Technologies 35670-90066 manual DC Power Cable and Grounding Requirements

Warning

Caution

Agilent 35670A Preparing the Analyzer for Use

DC Power Cable and Grounding Requirements

The negative side of the dc input connector is not connected to chassis ground. In dc mode operation, the chassis will float. The chassis ground lug on the rear panel and the negative side of the dc input connector should both be connected to a known reference potential.

Two dc power cables are available—the HP 35250A dc power cable and the HP 35251A dc power cable with cigarette lighter adapter. Both cables contain a 30 amp, 32 volt fuse (HP 2110-0920).

The tip of the cigarette lighter adapter may get hot during use. After unpluging the adapter, be careful of the heat from the adapter’s tip.

Although shorter cables may reduce dc voltage loss, use the standard cables. The dc inrush current may pit the connector contacts in shorter cables.

AC Power Cable and Grounding Requirements

On the GPIB connector, pin 12 and pins 18 through 24 are tied to chassis ground and the GPIB cable shield. The instrument frame, chassis, and covers are connected to chassis ground. The input BNCs are floating unless ground mode is selected.

The analyzer is equipped with a three-conductor power cord that grounds the analyzer when plugged into an appropriate receptacle. The type of power cable plug shipped with each analyzer depends on the country of destination. The following figure shows available power cables and plug configurations.

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