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13 APPENDIX
13-4Error when no Atmospheric Correction is made
When measurement is carried out with no Atmospheric Correction (with the
settings fixed at a temperature of 15°C and an atmospheric pressure of 1013 hPa
or 760 mmHg), the Error per 100 meters in temperature and pressure will be
shown in the tables below.
When the actual pressure is 1013 hPa (760 mmHg) and the temperature is
25°C, conducting the measurement with the temperature left at 15°C will
result in the measurement being short by 0.9 mm per 100 meters.
Error table:When hPa (15°C, 1013hPa as standard) Unit:mm
hPa 1200 1100 1013 900 800 700 600 500
C°
45 2.0 -0.5 -2.6 -5.5 -8.0 -10.5 -13.0 -15.5
35 3.0 0.4 -1.8 -4.7 -7.3 -9.9 -12.5 -15.1
25 4.0 1.4 -0.9 -4.0 -6.6 -9.3 -12.0 -14.6
15 5.2 2.4 -0.0 -3.1 -5.9 -8.6 -11.4 -14.2
5 6.3 3.5 1.0 -2.2 -5.1 -8.0 -10.8 -13.7
-5 7.6 4.7 2.1 -1.3 -4.2 -7.2 -10.2 -13.1
-15 9.0 5.9 3.2 -0.2 -3.3 -6.4 -9.5 -12.6

Error table:With mmHg (15°C, 760mmHg as standard)

Unit:mm
mmHg
900 800 760 700 600 500 400
C°
45 2.0 -1.3 -2.6 -4.6 -8.0 -11.3 -14.6
35 3.0 -0.4 -1.8 -3.9 -7.3 -10.8 -14.2
25 4.0 0.5 -0.9 -3.1 -6.6 -10.2 -13.7
15 5.2 1.5 0.0 -2.2 -5.9 -9.6 -13.3
5 6.3 2.5 1.0 -1.3 -5.1 -8.9 -12.7
-5 7.6 3.7 2.1 -0.3 -4.2 -8.2 -12.2
-15 9.0 4.9 3.2 0.8 -3.3 -7.4 -11.5
PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 82