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SECTION 1
GENERAL INFORMATION
1.1 INTRODUCTION
The Model 706 is an IEEE488 bus compatible scanner that
can accommodate ten plug-in scanner cards. With ten scan-
ner cards installed up to 100 2-pole channels can be on the
same IEEE address. Using four additional Model 706s in a
daisy chain configuration
up to 500 2-pole channels can be
on the same IEEE address. The Model 706 scanner adheres to
standard IEEE488 interface bus protocol. This enables the
Model 706 to be incorporated into any measurement that
uses programmed control through the IEEE-488 bus.
The front panel controls are clearly marked and easy to use.
These controls serve several functions
such as opening a
selected channel, closing the channel, scanning between a
selectable first and last channel, selecting scan rate and
mode. There are 15 internal programs that are accessible
from the front panel. The programs can select primary ad-
dress, settling time, store a relay set up, recall the stored relay
set up, control the digital I/O port, switch from International
to American date format, start or stop a scan sequence,
select 1, 2 or 4-pole measurement modes and program the
Model 706 as a master, slave or stand alone instrument in a
daisy chain configuration.
The Model 706 may also be
operated in a matrix configuration.
The time and date are kept internally with a battery backed up
clock allowing time dependent procedures to be performed.
1.2 MODEL 706 FEATURES
The Model 766 scanner includes the following features:
.lJp to 100 2-pole channels.
aIEEE-488 bus operation.
*Selectable scan rate of IOmsec to 999.999sec.
aSelectable scan modes that enable the user to scan the first
channel to the last channel once, continuously or manually.
*Fifteen internal programs that are accessible from the front
panel.
aModel 706 mainframe can accomodate 10 scanner plug-in
cards.
*Several different plug-in scanner cards are available as op-
tions. They include: a general purpose relay card, a ther-
mocouple card, low voltage card, low current card, high
current card, high voltage card, matrix card and universal in-
terface card.
*Time and date are kept with a battery backed up clock.
*Digital I/O port with eight lines as inputs and eight lines as
outputs.
*External trigger input that accepts a greater than wet
negative going TTL compatible pulse for triggering
the
Model 706 into a scan sequence.
@Channel ready output that outputs a greater than IOFec
negative going lTL compatible pulse upon the completion
of the programmed channel settling time.
*Alarm
output that outputs
a negative going lTL
level
greater than 10,usec pulse when the programmed time is
reached.
1.3 WARRANTY
INFORMATION
Warranty information is provided on the inside front cover of
this manual. If there is a need to exercise the warranty, con-
tact your Keithley representative in your area to determine the
proper action to be taken. Keithley maintains complete repair
and calibration facilities in the United States, West Germany,
Great Britain,
France, the Netherlands,
Switzerland
and
Austria.
Information
may be directed to the applications
engineer at any of the above locations. Check the inside front
cover of this manual for addresses.
1.4 MANUAL
ADDENDA
Improvements or changes to this manual will be explained on
an addendum included with this manual.
1.5 SAFETY SYMBOLS
AND TERMS
Safety symbols used in this manual are as follows:
The symbol
' Q
on the instrument denotes that the user
should refer to the operating instructions.
The symbol AM
on the instrument
denotes that high
voltage may be present on the terminals.
The, WARNING
used in this manual explains dangers that
could result in personal injury or death.
The CAUTION
used in this manual explains hazards that
could damage the instrument.
1.6 UNPACKING
AND INSPECTION
The Model 706 is inspected both electrically and mechanically
before shipment. Upon receiving the Model 706, unpack all
items from the shipping container and check for any obvious
damage that may have occurred during transit. Report any
damage to the shipping agent. Retain and use the original
packaging materials if reshipment is necessary. The following
items are shipped with all Model 706 orders:
*Model 706 Scanner
*Model 706 Instruction Manual
*Optional
accessories
per request.
(Cards are shipped
separately. 1
1.7 SPECIFICATIONS
For Model 706 detailed specifications,
refer to the specifica-
tions that precede this section.
1-l
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