HP 1740A - Installation; Introduction and Initial Inspection; Power Cords, Receptacles, and Requirements; Repacking for Shipment

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Model 1740A
Installation
SECTION II
INSTALLATION
2-1. INTRODUCTION.
2-2. This section contains information and instruc-
tions necessary for installing and interfacing the
Model 1740A Oscilloscope. Included are initial inspec-
tion procedures, power and grounding requirements,
installation instructions, and procedures for re-
packaging the instrument for shipment.
2-3. INITIAL INSPECTION.
2-4, This instrument was carefully inspected both
mechanically and electrically before shipment. It
should be free of mars or scratches and in perfect elec-
trical order upon receipt. To confirm this, the instru-
ment should be inspected for physical damage in-
curred in transit. If the instrument was damaged in
transit, file a claim with the carrier. Check for supplied
accessories (listed in Section I) and test the electrical
performance of the instrument using the performance
test procedures outlined in Section V. If there is dam-
age or deficiency, see the warranty in the front of this
manual.
Read the Safety Summary at the front
of the manual before installing or
operating the instrument.
2-5. POWER CORDS AND RECEPTACLES.
2-6. Figure 2-1 illustrates the standard configuration
used for HP power cords. The HP part number directly
above each drawing is the part number for an instru-
ment power cord equipped with a connector of that
configuration. If the appropriate power cord is not
included with the instrument, notify the nearest HP —
Sales and Service Office and a replacement cord
will be provided.
STD-002-07-76
HP POWER CABLE PART NUMBERS
8120-1692 8120-0696 8120-1703 8120-1521
Option 902) Option 901 | Option 900 | Option 903
INPUT POWER RECEPTACLE TYPES
Figure 2-1. Types of Power Source Receptacles and
Applicable Input Power Cable Part Numbers
2-7. POWER REQUIREMENTS.
2-8. The 1740A can be operated from any power
source supplying 100 V, 120 V, 220 V, or 240 V
(+10%), single phase, 48 to 440 Hz. Power dissipation
is 100 VA maximum.
CAUTION
Instrument damage may result if line-
voltage selection switch is not correctly
set for the input power source.
2-9. The instrument is normally set at the factory for
120-volt operation. To operate the instrument from any
other ac power source, proceed as follows:
a. Verify that Model 1740A power cable is not
connected to any input power source.
b. Stand instrument on rear legs. Use a blade-
type screwdriver to position line-voltage selection
switch through opening in bottom cover. (Figure 2-2
shows switches set for 120-V operation.)
c. For 220-V or 240-V inputs, replace fuse F1 with
0.5 A slow-blow fuse supplied with instrument.
d. Connect input power cable to power source.
1740A-200-07-76
Figure 2-2. Line Voltage Selection Switch Settings
2-10. REPACKING FOR SHIPMENT.
2-11. If the instrument is to be shipped to a Hewlett-
Packard Sales/Service Office for service or repair,
attach a tag showing owner (with address), complete
instrument serial number, and a description of the
service required.
2-12. Use the original shipping carton and packing
material. If the original packing material is not
available, the Hewlett-Packard Sales/Service Office
will provide information and recommendations on
materials to be used.
2-1