DH Instruments E-DWT-H, Operation And Maintenance Manual

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7. APPENDIX
Page 111 © 2009 DH Instruments, a Fluke Company
7. Appendix
7.1 Unit Conversion
7.1.1 Pressure
RPM4-E-DWT performs all internal calculations in SI units. Numerical values input or output
in other units are converted to SI immediately after entry and back to other units just before
output as needed.
Table 18 provides the conversion coefficients used by RPM4-E-DWT to convert numerical
values expressed in SI units to corresponding values expressed in other units.
Table 18. Pressure unit of measure conversion coefficients
TO CONVERT FROM Pa To MULTIPLY BY
Pa
Pascal
1.0
Mbar
millibar
1.0 E-02
hPa
hecto Pascal
1.0 E-02
kPa
kilo Pascal
1.0 E-03
Bar
Bar
1.0 E-05
mmWa @ 4°C
millimeter of water
1.019716 E-01
mmHg @ 0°C
millimeter of mercury
7.50063 E-03
Psi
pound per square inch
1.450377 E-04
Psf
pound per square foot
1.007206 E-06
inWa @ 4°C
inch of water
4.014649 E-03
inWa @ 20°C
inch of water
4.021732 E-03
inWa @ 60°F
inch of water
4.018429 E-03
inHg @ 0°C
inch of mercury
2.953 E-04
kcm
2
kilogram force per centimeter square
1.019716 E-05
mTorr
milliTorr (micron of mercury
7.50063
Torr
Torr (millimeter of mercury)
7.50063 E-3
User
User
User defined coefficient