Operation Manual

Model 2750 Multimeter/Switch System User’s Manual Temperature Equations F-9
C = -1 (0.00385)(0.10863) (1e-8)
= -1 (0.000418)(1e-8)
= - 4.18e-12
The resistance of the RTD at 100°C (R
100
) is then calculated as follows:
R
100
= R
0
[1 + AT + BT
2
+ CT
3
(T-100)]
= 100 {1 + [(0.00391)(100)] + [(-5.77e-7)(100
2
)]+ [(-4.18e-12)(100
3
)(100-100)]}
= 100 [1 + 0.391 + (-0.006) + 0]
= 100 (1.385)
= 138.5Ω
2750-900-01.book Page 9 Wednesday, August 3, 2011 7:56 AM