DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
Page 137
©2001 DH Instruments, Inc .
7.2 UNIT CONVERSION
7.2.1 PRESSURE
PPCK+ 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 21 provides the conversion coefficients used by PPCK+ to convert numerical values
expressed in SI units to corresponding values expressed in other units.
Table 21. Conversion Coefficients
TO CONVERT FROM PA TO MULTIPLY BY
Pa Pascal 1.0
mbar millibar 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
user
user User defined coefficient