Keithley 705 Instruction Manual page 25

Table of Contents

Advertisement

2.
3.
4.
NOTE
The flashing
question
mark on the display
pro-
mpts the user for the decimal
program
number.
Press 1. (Selects program
number
1 and displays the follow-
ing.)
r-minq
-. -
AOEI-American
or international
O-Indicates
which format.
0 = American
1 = International
Press 1. (Selects the International
date format.)
Press ENTER. (Displays
the date in the International
date
format
and turns on the DATE LED.)
To enable program
1 and select the American
date format
use
the following
procedure:
1. Press PRGM.
(Selects
program
mode,
displays
Pro ? and
turns off the DATE LED.)
2. Press 1. (Selects
Program
1 and displays the following.)
netted
to a particular
channel has to settle out. At the end of
the programmed
settle time the Model 705 outputs
a negative
going,
TTL level not less than 2pec
pulse at the CHANNEL
READY output.
The CHANNEL
READY output
is a BNC con-
nector
located
on the rear panel of the Model
705. The pur-
pose of the settle time program
is to have a selectable
settle
time for all instruments
connected
to a particular
channel.
Then, the pulse that appears at the CHANNEL
READY output
can be used to inform
another
instrument
(e.g. DMM,
printer
etc,) that the settle time is complete.
To initiate program
2 use
the following
procedure.
1.
2.
Press PRGM.
(Selects
the program
mode
and displays.)
Pro ?.
Press 2. (Selects
Program 2 and displays
the following
for
approximately
0.5 sec.)
I HDE I I
1 -Selected
from previous
procedure.
3. Press 0. (Selects American
date format.)
4. Press ENTER. (Displays
the date in the American
date for-
mat and turns on the DATE LED.)
NOTE
The date format
is battery
backed
up. Shutting
off the power to the unit does not affect the for-
mat.
It will
remain
as programmed
until
it is
reprogrammed.
The date, as well as the time,
keeps on running
even when
power to the instrument
is shut off. The reason for this is that
the clock's
power
circuitry
is backed
up by battery
BTIOI.
Setting
or changing
the date is as simple as selecting
the date
formats.
For example,
use the followng
procedure
to set the
date in American
date format
for November
24.
1. Press PRGM.
(Selects
program
mode and displays
Pro ?.)
2. Press I. (Selects
program
1, turns off the DATE LED and
displays the following:
IWEI
a 1
3. Press ENTER. (The American
date format
was selected
in
the previous
procedure.
Pressing
ENTER displays
the date
in the American
date format
and turns on the DATE LED.)
4. Press 1, 1, 2, 4, ENTER. (Programs
the date for November
24 and displays the following.)
II = month
24 = day
2.6.3 Program
2 Settle
Time
Program
2 is used to program
the amount
of time
(up to
999.99sec)
the relays and all the measurment
equipment
con-
ISEttlE
I
After
the
settle
message
is displayed,
the
Model
705
displays:
This display is shown in seconds.
The minimum
settle time
is 5msec and the maximum
settle time is 999.999sec.
Setting the settle time is a simple procedure.
For example,
use
the following
procedure
to set the settle time to 001 .OlOsec.
1. Press PRGM.
(Selects program
mode and displays.)
r
I
/
I
P
l-0
?
I
2. Press 2. (Selects Program 2 and displays the settle message
described
in step 2 of the previous
procedure.
Then the
minimum
settle time is displayed.)
3. Press 0, 0, 1, 0, 1, 0, ENTER. (Loads 1 .Olsec as the settle
time on the display.
Pressing ENTER programs
l.Olsec
as
the settle time and the Model
705 reverts to the channel
mode at the previously
displayed
channel.)
NOTE
Initiating
a new interval time resets the settle time
counter.
If the settling time is greater than the in-
terval time the output
pulse does not appear until
the end of the scan.
2.6.4 Program
3 Primary
Address
Program
3 is used to program
the primary
address
of the
Model 705 for IEEE-488 bus operation.
The primary address of
the Model 705 is factory
set at 17, but it may be set to any
value between
0 and 31 via front panel Program 3. The primary
address
specified
in the controller's
programming
language
must agree with the primary address of the Model 705. Front
panel Program
3 is the only way to change
the Model 705's
primary
address.
2-14

Advertisement

Table of Contents
loading

Table of Contents