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M o d e l DRC-93C
Section
III
Pressing the POINT# key will cause
NOTE:
F a i l u r e
to enter
the correct
the point # entry in the Setpoint
curve
end points w i l l
result
in
Display to begin flashing and the
unpredictable
r e s u l t s .
Upper and Lower displays to be
cleared.
The keypad
(0-9)
is used
Pressing the PROG key will return
to enter a point# to be inserted.
operation to normal with the curve
Type
01
and press the ENTER key.
being entered into the memory of the
Now the Upper and Lower displays
instrument and available through an
will go to
0 . 0
and the Upper display
assignment as described in section
will begin flashing. Use the keypad
3.9.1.
to enter the temperature of the
point in kelvin.
The decimal point
3 . 9 . 3 . 3
Editing
Existing
Curve D a t a
can be used, but the resolution will
be limited to
---
.
-
.
If the entry
Curve data can be modified using the
is begun but not as desired, the
same procedure
described
in
the
CLEAR
key can be used to clear the
previous section. The difference is
display to restart.
that the temperature and voltage
(raw data) will be shown in the
The first and last points entered
Upper and Lower displays respective-
are determined by the temperature
ly after the POINT# has been select-
coefficient of the curve being en-
ed.
If it is not desired to edit
tered. For a negative temperature
the point, then simply enter another
coefficient
(N)
curve the first
point# using the POINT# key or press
data point
(#01)
is
499.9K
and
the PROG key to return to normal
0.0000
volts.
For a positive temp-
operation.
erature coefficient (P) curve the
first data point is
0.0K
and
0.0000
Following the editing of a data
volts.
point, the unit compares the temper-
ature and voltage entered against
The quantity is accepted for the
the existing curve to see if either
temperature when the
ENTER
key is
match and existing point. The point
pressed.
is matched
first in temperature,
then voltage.
If a match occurs,
NOTE:
You cannot use the
key or
the point is edited to reflect the
key when entering curve data.
Only
change.
If no match occurs, the
the keypad (0-9,and
.)
and the CLEAR
unit inserts the new point into the
key are active.
curve in the correct increasing Raw
Units order.
After the temperature is entered,
the Lower Display will begin to
3 . 9 . 3 . 4
Summary
o f
C u r v e
Programming
flash.
The keypad is used to enter
from the Front Panel
the Raw Units Data for the point as
described in Table
4-14.
The entry
1 .
The Curve Programming routine is
is accepted when the
ENTER
key is
entered by pressing the PROG key
pressed.
followed by the
CURVE#
key.
The
PROG
light will remain on while
Another point can be added by press-
in the routine and turnoff when
ing the POINT# key. After the curve
operation returns to normal.
has been entered, the last data
point to enter is
0.0K
and
6.5536
2.
The displays have the following
volts for N type and
999.9K
and
format during curve programming.
6.5536
volts for P type curves.
Upper Display:
Temperature in K
Setpoint Display:
Curve#
-
Point#
Lower Display:
Raw Units Data
COPYRIGHT
3/88
3-15
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