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C
TTTT
=
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
4433
100
1
100 100
1
100
⎥
D
TTTT
=
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
3322
100
1
100 100
1
100
⎥
ER R=−
43
FRR=−
32
delta
AF BE
DE CF
=
−
−
Where:
T
1-4
- Measured temperature using thermometer.
R
1-4
- Value of R from display of 9009 (Press SET and DOWN at the same
time.)
where
T
1
and R
1
are the measured temperature and resistance at –15 °C
T
2
and R
2
are the measured temperature and resistance at 0 °C
T
3
and R
3
are the measured temperature and resistance at 60 °C
T
4
and R
4
are the measured temperature and resistance at 110°C
10.2.2 Compute R0 & ALPHA
a T delta
TT
12
22
100
1
100
=+
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
a T delta
TT
34
44
100
1
100
=+
⎡
⎣
⎢
⎤
⎦
⎥
−
⎡
⎣
⎢
⎤
⎦
⎥
rzero
Ra Ra
aa
=
−
−
41 23
13
alpha
RR
Ra Ra
=
−
−
24
41 23
Where:
delta is the new value of DELTA computed above
10.2.3 Compute BETA (Cold Side Only)
x
T
=
⎡
⎣
⎢
⎤
⎦
⎥
−
1
100
1
9009 Industrial Dual-Block Calibrator
User’s Guide
38
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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