Pentax R-315(N) User Manual
82
13 APPENDIX
13-4 Error 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.
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.
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