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Model 4277A
SECTION II
SiCtiON 11
INSTALIATION
2-1.
INTRODUCTION
2-2.
This section provides installation instruc¬
tions for the Model 4277A LCZ Meter.
It also
includes information on initial inspection and
damage claims, preparation for using the 4277A,
and packaging, storage, and shipment.
2-3.
INITIAL INSPECTION
2-4.
The 4277A LCZ Meter, as shipped from
the factory, meets all the specifications listed in
Table 1-1.
Upon receipt, 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
cheeked
for
completeness
and
the
instrument has been checked mechanically and
electrically.
The
contents
of
the
shipment
should
be
as
shown
in
Figure
1-1.
The
procedures for checking the general electrical
operation are given in Section III (Paragraph 3-5
SELF TEST) and the procedures for checking the
4277A LCZ Meter against its specifications are
given in Section IV. First, do the self test. If the
4277A is electrically questionable, then do the
Performance Tests to determine whether the
4277A has failed or not.
If the contents are incomplete, if
there
is
mechanical damage or defects (scratches, dents,
broken switches, etc.), or if the performance
does not meet the self test or performance tests,
notify the nearest Hewlett-Packard office (see
list at back of this manual). The HP office will
arrange
for
repair
or
replacement
without
waiting for claim settlement.
2-5.
PREPARATION FOR USE
2-6.
POWER REQUIREMENTS
2-7.
The 4277A requires a power source of 100,
120, 220 Volts ac +10%, or 240 Volts ac +5%-10%,
48 to 66Hz single phase; power consumption is
75VA maximum.
WARNING
IF
THE
INSTRUMENT
IS
TO
BE
ENERGIZED
VIA
AN
EXTERNAL
AUTOTRANSFORMER
UNIT
FOR
VOLTAGE
REDUCTION,
BE
SURE
THAT THE COMMON TERMINAL IS
CONNECTED
TO
THE
NEUTRAL
POLE OF THE POWER SUPPLY.
2-8.
Line Voltage and Fuse Selection
CAUTION
BEFORE TURNING THE 4277A LINE
SWITCH TO ON, VERIFY THAT THE
INSTRUMENT
IS
SET
TO
THE
VOLTAGE OF THE POWER TO BE
SUPPLIED.
2-9.
Figure 2-1 provides instructions for line
voltage and fuse selection.
The line voltage
selection switch and the proper fuse are factory
installed
for
the
voltage
appropriate
to
instrument destination.
CAUTION
USE
PROPER
FUSE
FOR
LINE
VOLTAGE SELECTED.
CAUTION
MAKE
SURE
THAT
ONLY
FUSES
FOR
THE
REQUIRED
RATED
CURRENT AND OF THE SPECIFIED
TYPE
ARE
USED
FOR
REPLACEMENT.
THE
USE
OF
MENDED
FUSES
AND
THE
SHORT-CIRCUITING
OF
FUSE-
HOLDERS MUST BE AVOIDED.
2-10. POWER CABLE
2-11. To
protect
operating
personnel,
the
National Electrical Manufacturer's Association
(NEMA) recommends that the instrument panel
and cabinet be grounded. The Model 4277A is
equipped with a three-conductor power cable
which,
when
plugged
into
an
appropriate
receptacle, grounds the instrument.
The offset
pin on the power cable is the ground wire.
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