Campbell CDM-VW300 Series Manuel télécharger pdf (Page 91)

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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Campbell CDM-VW300 Series Manuel Page 91