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Model DRC-93c
section
VI
6 . 6 RUNNING
THE
PROGRAM
6.7
CLEARING
A l l
INTERNAL
PROGRAM
To begin execution of the internal
program,
the
user
does
the
ALL
internal
program memory can be
following.
cleared of program material from
the front panel.
The procedure is
1 .
Press the INTernal key.
The
as follows.
MEMORY
INTernal indicator will begin to
blink on and off.
1 .
Press the PROGRAM key.
2.
Select the Program Step using
2 .
Press and hold the CLEAR key f o r
the
POINT#
key followed by the
approximately 15 seconds until
ENTER
key.
the
PROG
indicator goes
o f f .
ALL
program
steps
will
be
3.
If
another
Program
Step
is
cleared
and
front
panel
desired, repeat step
2.
The
operation restored.
key or
key can be used to
examine the next higher or lower
Program Step # respectively.
4.
If it is desired to return to
normal operation thus aborting
In Figure 6-1 is shown a graph of
a
the programming setup, press the
simple ramp from
40K
to 100K in a
INTernal
key.
The
INTernal
period of
30
minutes and a soak
indicator will
turn
off
and
(dwell) of
1
hour.
normal operation will resume.
5.
Press the
SCAN
key to begin
execution
of
the
program
beginning at the Program Step
selected
in
part
2.
The
INTernal indicator will turn on
and stay on showing that the
instrument is in the programming
mode.
6.8 EXAMPLES
6 . 8 . 1
Example
#1
-
Ramp
and
Soak
6 .
The only keys active while a
program is being executed are
the CLEAR key and the
TIME
key.
Pressing the CLEAR key causes
execution
of
the
program
to
cease
and
operation
to
be
returned to normal.
Pressing
the TIME key causes the elapsed
time in a particular cycle to be
displayed.
7 .
To exit
from the programming
mode, press the CLEAR key.
The
INT indicator will turn
o f f .
It
is also possible to exit the
program by using command
9.
COPYRIGHT
12/87
LSCI
Step #02
dwell=1 hour
100K
Step #01
Ramp for
30
minutes
4
OK
Figure
6.1
Simple Ramp and
Soak
It is assumed that the system
has
stabilized
at
40K
prior
to
execution of the program.
Step #01 and
#02
will be used f o r
the program.
Step #01 will ramp
and Step
#02
will dwell.
It is
assumed that the system can follow
the setpoint in the time provided.
6-5
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