1720/1721
7–1
Section 7
Options
This section describes instrument options and customer-installable Field Upgrade Kits
for the 1720/1721.
Options
The standard instrument is shipped with a P31 (green) phosphor crt installed. If
Option 74 is ordered the instrument is shipped with a P4 (white) phosphor crt
installed. The Option 74 crt part number is given at the end of the Replaceable
Electrical Parts list.
Any of the following power cord options can be ordered for the 1720/1721. If
no power cord option is ordered, instruments are shipped with a North American
125 V power cord and one replacement fuse.
Option A1 Universal Europe 220V/16A Locking Power Plug (power cord
and one replacement fuse)
Option A2 United Kingdom 240V/15A Power Plug (power cord and one
replacement fuse)
Option A3 Australian 240V/10A Power Plug (power cord and one
replacement fuse)
Option A4 North American 250V/18A Power Plug (power cord and one
replacement fuse)
Option A5 Swiss 240V/6A Power Plug (power cord and one replacement
fuse)
Unless otherwise specified, power cords for use in North America are UL listed
and CSA certified. Option cords are approved by at least one test house
acceptable in the country to which the product is shipped. Power cord part
numbers are shown on the pull-out in Section 10.
Field Upgrade Kits
All of the Safety and EMI tests used to qualify the 1720/1721 were performed in
a cabinet. There are two optional cabinets and a dual rack adapter available for
CRT Options
Power Cord Options
Cabinets
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