HP 651B - Installation

Model 651B
Section II
ON II
2-1. INSPECTION.
2-2. This instrument was carefully inspected both
mechanically and electrically before shipment. It
should be physically free of mars or scratches and in
perfect electrical order upon receipt. To confirm
this, the instrument should be inspected for physical
damage in transit. Also, check for supplied acces¬
sories, and test the electrical performance of the
instrument using the procedure outlined in Para¬
graph 5-5. If there is damage or deficiency, seethe
warranty on the inside front cover of this manual.
2-3. POWER REQUIREMENTS.
2-4. The Model 651B will operate from either 115 or
230 Vac, 50 to 1000 Hz. The instrument can be easily
converted from 115 to 230 volt operation by changing
the position of the slide switch located on the rear panel,
so that the designationappearing on the switch matches
the nominal voltage of the power source. A 0.4 amp¬
ere, slow-blow fuse is used for both 115and230 volt
operation.
2-5. THREE-CONDUCTOR POWER CABLE.
2-6. To protect operatii^ personnel, the National
Electrical Manufacturers’ Association (NEMA) recom¬
mends that the instrument panel and cabinet be ground¬
ed. All Hewlett-Packard instruments are equipped
with a three-conductor power cable, which, whenplug-
ged into an appropriate receptacle, grounds the in¬
strument. The offset pin on the power cable three-
prong connector is the ground wire.
2-7. Topreservetheprotection feature when operat¬
ing the instrument from a two-contact outlet, use a
three-prong to two-prong adapter and connect the
green pigtail on the adapter to ground,
2-8. INSTALLATION.
2-9. The Model 651B is fully transistorized; there¬
fore no special cooling is required. However, the
instrument should not be operated where the ambient
temperature exceeds 50<^ C.
2-10. RACK/BENCH INSTALLATION.
2-11. The Model 651B is initially shipped as a bench-
type instrument (unless ordered specifically as a rack
type) with plastic feet and a tilt stand in place. Con¬
version to a rack-mounted instrument can be
accomplished by using the rack mounting kit and
instructions furnished with your instrument.
2-12. REPACKAGING FOR SHIPMENT.
2-13. The following is a general guide for repackaging
for shipment. If you have any questions, contact your
local -hp- Sales and Service Office. (See Appendix
B for ofhce locations.)
-NOTE-
If the instrument is to be shipped
to Hewlett-Paclard for service
or repair, attach a tag to the in¬
strument, identifying the owner
and indicating the service or
repair to be accomplished; include
the model number and full serial
number of the instrument. In any
correspondence, identify the in¬
strument by model number, serial
number and serial number prefix.
a. Place instrument in original container if
available. If original container is not avail¬
able, a suitable one can be purchased from
your nearest -hp- &.les and Service Office.
If original container is not used,
b. Wrap instrument in heavy paper or plastic
before placing in an inner container.
c. Use plenty of packing material around all
sides of instrument and protect panel faces
with cardboard strips.
d. Place instrument and inner container in a
heavy carton or wooden box and seal with
strong tape or metal bands.
e. Mark shipping container with "Delicate In¬
strument," "Fragile" etc.
01810-2
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