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Model 11848A
Installation
INSTALLATION
INTRODUCTION
This section provides the information needed to install the HP 11848A Phase Noise Interface. Included
is information pertinent to initial inspection, power requirements, line voltage selection, power cables,
environment, storage, and shipment.
INITIAL INSPECTION
[WARNING!
To avoid hazardous electrical shock, do not perform electrical tests when
there are signs of shipping damage to any portion of the outer enclosure
(covers and panels).
Inspect the shipping container for damage. If the shipping container or cushioning material is
damaged, it should be kept until the contents of the shipment have been checked for completeness
and the instrument has been checked mechanically and electrically. Procedures for checking electrical
performance are given in the Confidence Check found in the HP 3048A Operating Manual. If the
contents are incomplete, if there is mechanical damage or defect, or if the instrument does not pass
the electrical performance test, notify the nearest Hewlett-Packard office. If the shipping container
is damaged, or the cushioning material shows signs of stress, notify the carrier as well as the
Hewlett-Packard office. Keep the shipping materials for the carrier's inspection.
PREPARATION FOR USE
Power Requirements
The HP 11848A requires a power source of 100 Vac (90 to 105 Vac), 120 Vac (108 to 126 Vac), 220 Vac
(198 to 231 Vac), or 240 Vac (216 to 252 Vac), 47.5 to 440 Hz single phase. Power consumption is
260 VA maximum.
IWARNINGI
This is a Safety Class I product (i.e., provided with a protective earth
terminal). An uninterrupted safety earth ground must be provided from the
Mains power source to the product input wiring terminals, power cord, or
supplied power cord set. Whenever it is likely that the protection has been
impaired, the instrument must be made inoperative and be secured against
any unintended operation.
If this instrument is to be energized via an external autotransformer for
voltage reduction, make sure that the common terminal is connected to the
earth pole of the power source.
CAUTION
BEFORE PLUGGING THIS INSTRUMENT into the Mains (line) voltage,
be sure the correct voltage and fuse have been selected.
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