HP 428B, Operating And Service Manual, Page: 10 / 52

Model 428B
SECTION II
INSTALLATION
2-1. UNPACKING AND MECHANICAL INSPECTION.
2-2. Inspect instrument for signs of damage incurred in
shipment. This instrument should be tested as soon as
it is received. If it fails to operate properly, or is
damaged in any way, a claim should be filed with the
carrier. A full report of the damage should be obtained
by the claim agent, and this report should be forwarded
to us. We will then advise you of the disposition to be
made of the equipment and arrange for repair or
replacement. Include model number and serial number
when referring to this instrument for any reason.
2-3. Hewlett-Packard Company warrants each
instrument manufactured by them to be free from
defects in material and workmanship. Our liability under
this warranty is limited to servicing or adjusting any
instrument returned to the factory for that purpose and
to replace any defective parts thereof. Any damage to
the instrument upon receipt is due to the carrier. File a
claim with the carrier as instructed in the preceding
paragraph.
2-4. OPERATION CHECK.
2-5. This instrument should be checked as soon as it is
received to determine that its electrical characteristics
have not been damaged in shipment. Refer to the
In-Cabinet Performance Checks of Section V of this
manual.
2-6. INSTALLATION.
2-7. See Paragraph 3-3 before operating this
instrument.
2-8. POWER REQUIREMENTS.
2-9. Power requirements are given in Specifications
table at t he front of this manual.
2-10. OPERATION ON 115 OR 230 VOLTS.
2-11. This instrument may be used with either a 115
volt or 230 volt supply with a frequency of 50 to 60 cps,
single phase. This instrument is shipped from the
factory ready for operation from a 115 volt source
unless otherwise indicated.
2-12. To operate from a 230 volt source, the 115-230
switch on the rear apron must be flipped to 230. First
turn the instrument off and pull the power cable from the
socket. Place a pointed tool, such as the sharpened end
of a pencil, in the slot of the switch and pull down.
Replace the fuse with the one given in Table 6-1 for 230
volt operation.
2-13. THREE CONDUCTOR POWER CABLE.
2-14. The three-conductor power cable supplied with
the instrument is terminated in a polarized, three-prong
male connector recommended by the National Electrical
Manufacturers'
Association (NEMA). The third
conductor grounds the instrument chassis for the
PROTECTION OF THE OPERATING PERSONNEL.
When using a three-prong to two-prong adapter ground
third lead (green wire) externally.
2-15. RACK MOUNT MODEL.
2-16. This instrument is available in a rack mount
version in addition to the cabinet model shown in this
manual. The rack mount version is identical electrically
and similar physically except that the degausser has
been moved to the front panel for greater convenience.
2-17. PREPARATION FOR STORAGE AND SHIPMENT.
2-18. The best method for packing this instrument is in
the original shipping carton with the original fillers
packed in the same manner as when received from the
factory. Therefore, when unpacking, note carefully the
method of packing and save the original packing
material for possible future reuse.
2-19. If the original packing material is not available, and
it is desired to package the instrument for storage or
shipment, first wrap the instrument in heavy kraft paper
to avoid scratching the paint. Then pack in a cardboard
carton with a bursting strength of at least 150 lb per
square inch. Pad the instrument on all sides with at least
2 inches of rubberized hair or at least 4 inches of tightly
packed excelsior.
2·20. STORAGE.
2-21. No special precautions are necessary in storage
except the usual protection against mechanical damage,
salt air, etc.
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