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Section III
ters. The new Math Functions can be
observed at any time by depressing
and holding in the appropriate key
(MAX,
MIN, or
MAXDEV).
3 . 9
SENSOR CURVE
SELECTION
3 . 9 . 1
Standard and Precision Option
curves
The standard curves are given in
Table
3-2.
The Precision Option
Curves are given in Table
3-3.
Table
3 - 2 .
Standard
Curve Informa-
tion
Curve
No.
00
01
02
03
04
05
Temperature
Range
(K)
1
-
324.9
1
-
324.9
1
-
324.9
14
-
799.9
1
-
474.9
Description
DRC-D
DRC-E1
CRV 10
DIN-PT
CRV 10
RESVRD
3.9.1.1 The
Precision Option
For Lake Shore stored Precision
Option, a proprietary algorithm is
used to fit the calibration data to
within a few millikelvin over the
entire temperature range.
The Precision Option Table shown in
Table
3-3
gives the standard curves
as well as any Precision options
which are factory installed includ-
ing their address and the number of
data points associated with each
curve. This Table should be updated
for the instrument if additional
curves are added at a later time.
Up to
25
Precision Option Curves can
be stored in the
DRC-93C
with an
average of
31
lines per curve.
A
Precision option Curve can have up
to
97
points with two additional end
points automatically put into the
curve table by the
DRC-93C
software.
3-10
Model DRC-93C
3 . 9 . 1 . 2
Display of A c c e s s e d Curve
Number
To determine which curve is being
used press and hold the
CURVE#
key.
The displays will show the letters
"CU"
for Curve Number followed by a
curve number in each display.
Table
3 - 3 .
S e n s o r Curve Table
Information
-
Precision Option Table
Curve #Lines Address Description
1D4
0
DRC-D
00
31
01
31
1DFO
DRC-E1
02
31
1EA0
CRV
10
03
31
1F50
DIN-PT
04
31
2000
CRV 10
05
06
07
08
09
31
2 0B0
RESVRD
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
COPYRIGHT 3/88
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