Section 1 Operating Instructions; General; Power Connections - Tektronix 613 Instruction Manual

Section 1
OPERATING INSTRUCTIONS
General
The 613 is a Storage Display unit, featuring a Tektronix
flat-faced direct-view storage cathode-ray tube. The crt
has a diagonal dimension of 11 inches (15 cm X 20 cm
quality viewing area). In the standard 61 3 configuration,
the long dimension of the rectangular display screen is
horizontal. As an option, the instrument can be ordered
with the long-axis vertical; in that configuration, the
instrument is identified as a 613-1. All references in this
manual pertain to both the613 and 613-1 except as noted.
The 613 finds its primary application as the display unit
for a system where there is a requirement for a great deal
of alphanumeric and/or graphic data to be displayed
simultaneously and without flicker. It is often used in
C A U T I O N
a
This instrument is intended to be operated from a
single-phase power source that has one of its
current-carrying conductors (the neutral conduc-
tor) at ground (earth) potential. Operation from
other power sources where both current-carrying
conductors are live with respect to ground (such as
phase-to-phase on a multi-phase system, or across
the legs of a 117-234 V single-phase three-wire
system) is not recommended, as only the Line
Conductor has over-current (fuse) protection within
the instrument.
NOTE
remote terminal stations for digital computers and other
The power cord on Tektronix instruments may
data transmission systems.
conform to either of the following two electrical
codes:
INSTALLATION
Power Connections
The 613 is provided with an attached three-wire power
cord with a three-terminal polarized plug for connection
to the power source. The grounding terminal of the plug is
directly connected to the instrument frame as
*Tinned copper conductor
recommended by national and international safety codes.
Color coding of cord conductors follows the National
The 613 is normally wired at the factory for operation
Electrical Code (ANSI C-1, 1968) that specifies Line, from a 115-volt, 60 Hz ac line voltage supply. However, it
Black; Neutral, White; Safety Earth or Ground, Green with can be made to operate from any one of six different line
Yellow Stripe (or solid Green). voltages by changing some internal jumper connections.
Fig. 1-2. Jumper combinations for different line voltages.
REV. C, JULY, 1975