M9484C Startup Guide
15
Quick Start
Prepare the Hardware
Prepare the Hardware
Redundant Ground for 100/120V 400 Hz and 220/240V 60 Hz
Operation
Installing a Redundant Ground
Operation at 100/120V 400 Hz and 220/240V 60 Hz requires the installation of
a redundant ground from the instrument chassis to earth ground. The
redundant ground must be permanently attached to the unit as well as to the
earth ground point.
The following procedure describes how to make the permanent connection to
the earth ground screw of the unit. The user must ensure the integrity and
permanence of the connection at the earth ground point.
The following customer supplied hardware is required:
The following procedures should be followed to ensure safety and to
minimize the possibility of damaging electrical components .
—
This product is designed for use in Installation Category II and Pollution
Degree 2, per IEC 61010 Third Edition and 664 respectively.
— This chassis is designed for indoor use only.
— Mains wiring and connectors shall be compatible with the connector
used in the premise electrical system. Failure to ensure adequate earth
grounding by not using correct components may cause product damage
and serious injury.
— Use only the power cord supplied with the chassis. Keysight power cords
ensure continuity between the chassis grounding-type power plug and
the safety ground terminal at the power outlet.
—
Install the chassis so that the detachable power cord is readily
identifiable and is easily reached by the operator. The detachable power
cord is the chassis disconnecting device. It disconnects the mains
circuits from the mains supply to the chassis before other parts of the
chassis. The front panel switch is only a standby switch and is not a LINE
switch. Alternatively, an externally installed switch or circuit breaker
(which is readily identifiable and is easily reached by the operator) may
be used as a disconnecting device.
At 100/120V 400 Hz and 220/240V 60 Hz AC input operation, the
leakage current of the unit exceeds 3.5 mA. This requires the
installation of a permanent, redundant ground from the instrument
chassis to earth ground. This ensures that ground will always be
connected and that any leakage current will be diverted to ground.
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