Vaisala BAROCAP PTB330, Руководство пользователя

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Appendix B _____________________________________________________ Unit conversion tables
VAISALA ______________________________________________________________________ 129
APPENDIX B
UNIT CONVERSION TABLES
This appendix contains the unit conversion tables.
0708-016 Figure 49 Pressure Conversion Chart
* A unit not available on PTB330.
Multiplication factors
Note: conversions for mmHg and inHg are defined at 0°C temperature and for mmH2O and inH2O at 4°C temperature.
psia =
FROM
psi absolute
hPa Pa mmHg inHg mmH2O inH2O* atm* at* bar psia
mbar N/m2 torr
TO
hPa
mbar
1 0.01 1.333224 33.86388 0.09806650 2.490889 1013.25 980.665 1000 68.94757
Pa
Nm2
100 1 133.3224 3386.388 9.806650 249.0889 101325 98066.5 100000 6894.757
mmHg
torr
0.7500617 0.0075006 1 25.40000 0.07355592 1.8683 760 735.559 750.0617 51.71493
inHg
0.02952999 0.00029530 0.03937008 1 0.002895903 0.073556 29.921 28.959 29.52999 2.036021
mmH2O
10.19716 0.1019716 13.59510 345.3155 1 25.40000 10332.3 10000 10197.16 703.0696
inH2O*
0.40147 0.0040147 0.53525 13.596 0.039372 1 406.79 393.71 401.463 27.6799
atm*
0.00098692 0.000009869 0.00131579 0.033422 0.000096788 0.0024583 1 0.967841 0.98692 0.068046
at*
0.0010197 0.00001020 0.0013595 0.034532 0.0001 0.0025399 1.03323 1 1.01972 0.070307
bar
0.001 0.00001 0.001333224 0.03386388 0.00009807 0.0024909 1.01325 0.980665 1 0.06894757
psia
0.01450377 0.00014504 0.01933678 0.4911541 0.001422334 0.036127 14.6962 14.2233 14.50377 1
Example
1013.25 hPa/mbar = 1013.25 x 0.02952999 inHg = 29.9213 inHg