Fluke 7008 - Page 69

Calibration Procedure
11.2 Measuring the Set-point Error11
11-3
D0 = −25.229
DG = 0.0028530
t
L
= 75.00 C
measured t =74.901 C
Compute errors,
err
L
= 24.869 − 25.00 °C = −0.131 °C
err
H
= 74.901 − 75.00 °C = −0.099 °C
Compute C
0
,
392.25)229.25(
0.250.75
))229.25(0.25)(099.0())229.25(0.75)(131.0(
0 −=−+
−
−−−−−−−
′
D
Compute C
G
,
0028548.00028530.01
0.250.75
)131.0()099.0(
=






+
−
−−−
=
′
GD
Figure 10. Sample calibration computations