Figure 8 Calibration Example - Fluke 7341 User Manual

R0 = 100.000
ALPHA = 0.0038500
t = 30.00°C
L
measured t = 29.843°C
t = 80.00°C
H
measured t = 79.914°C
Compute errors,
err = 29.843 - 30.00°C = -0.157°C
L
err = 79.914 - 80.00°C = -0.086°C
H
Compute R0',
⎡ (
− ×
0 086 . ) 30 0
' =
R ⎢
0
⎣ 80 0 .
Compute ALPHA',
⎡
+
( 1 0 00385 80 0 .
ALPHA' =
⎢
⎣

Figure 8 Calibration Example

− − ×
. ( 0157 . ) 80 0 .
0 00385 1 .
−
30 0 .
× − −
. )( 0157 . ) ( 1 0 00385
−
80 0 . 30 0
⎤
+ =
⎥ 100 000 100 077 . .
⎦
+ × −
. 30 0 . )( 0 086 .
.
11 Calibration Procedure
Calibration Example
⎤
)
+ =
1 0 00385 ⎥ . 0 0038416 .
⎦
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