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34
OWL Data Loggers
8
APPENDIX A
8.1
Temperature Ranges
The OWL Data Logger allows selection of ranges for each temperature equation entered. Use the
following table to determine the most suitable range.
The list is sorted by midpoint and the size on either side follows the "±" sign. For example, the range
10.8 ± 47.1 °C (51.4 ± 84.8 °F) measures between -36.3 °C (-33.4 °F) and 57.9 °C (136.2 °F.)
The tighter the range, the better the resolution. For example, if room temperatures are to be measured
then a range large enough to account for the biggest fluctuation is picked. This might be 20.33 ±
8.72°C (68.60 ± 15.69°F) in a warm climate. This is among the smallest of ranges so the resolution is
going to be better than:
0.05 °C (0.09 °F) @ 20.3 °C (68.6 °F)
0.10 °C (0.18 °F) between 12.7 °C (54.9 °F) and 27.9 °C (82.2 °F)
0.20 °C (0.36 °F) between 11.6 °C (52.9 °F) and 29.1 °C (84.3 °F)
Range
Equation 200
0
-60.03 ± 27.84 C
1
-50.54 ± 29.82 C
2
-46.16 ± 32.63 C
3
-44.69 ± 31.07 C
4
-36.96 ± 32.77 C
5
-35.60 ± 35.09 C
6
-34.09 ± 33.42 C
7
-33.80 ± 10.01 C
8
-31.61 ± 33.98 C
9
-29.43 ± 34.48 C
APPENDIX
Temperature
Ranges
Table A-1: Temperature Ranges in Celsius
Equation 201
-78.37 ± 24.30 C
-70.14 ± 25.86 C
-66.39 ± 28.23 C
-65.10 ± 26.85 C
-58.46 ± 28.18 C
-57.33 ± 30.16 C
-56.00 ± 28.69 C
-55.48 ± 8.59 C
-53.88 ± 29.13 C
-52.03 ± 29.51 C
Equation 202
-25.33 ± 35.01 C
-13.21 ± 37.96 C
-7.5 ± 41.8 C
-5.7 ± 39.9 C
4.4 ± 42.5 C
6.3 ± 45.6 C
8.2 ± 43.5 C
7.67 ± 13.02 C
11.4 ± 44.4 C
14.3 ± 45.1 C
Equation 203
18.7 ± 44.2 C
34.0 ± 48.0 C
41.3 ± 52.9 C
43.5 ± 50.4 C
56.3 ± 53.8 C
58.8 ± 57.8 C
61.1 ± 55.1 C
60.31 ± 16.50 C
65.3 ± 56.3 C
68.9 ± 57.3 C
© 2001 ... ACR Sy stems Inc.
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