Campbell CDM-VW300 Series Manual Pagina 91

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Appendix F. Thermistor Information
ERROR = (ACTUAL - COMPUTED) DEG C
COMPUTED TEMPERATURE (C) 1000 FOOT LEAD
-10 -5 0 5 10 15 20 25 30
0.32
.0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
FIGURE F-2. Temperature measurement error on a 1000 foot lead.
Wire is 22 AWG with 16 ohms per 1000 feet.
ERROR = (ACTUAL - COMPUTED) DEG C
COMPUTED TEMPERATURE (C) 3000 FOOT LEAD
-10 -5 0 5 10 15 20 25 30
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
FIGURE F-3. Temperature measurement error on a 3000 foot lead.
Wire is 22 AWG with 16 ohms per 1000 feet.
F-3
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