Baker Hughes Druck DPS 8000 Series, Instruction Manual

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Copyright 2011 Baker Hughes Company.
English–DPS 8000 Instruction Manual | 49
Appendix B. Alternative Pressure Units
This appendix contains data for the alternative pressure units.
The basic operation of the pressure transducer uses mbar for the pressure calculations. Druck
uses the Customer Ordering Information to set the default units for the pressure output. The
default units can be: mbar, bar, or psi.
The table below shows the values to get an output in one of the alternative pressure units.
If other units are necessary, set the applicable values to agree with local conditions.
Pressure Units
CANopen Value (Units)
(Object: 0x6131 01)
Scale-Factor
(Object: 0x6123 01)
mbar millibar 0xFD4E0000 1
bar bar 0x004E0000 0.001
Pa (N/m
2
)
pascal (newton per square metre) 0x00220000 100
hPa hectopascal 0x02220000 1
kPa kilo pascal 0x03220000 0.1
Mpa Mega pascal 0x06220000 0.0001
mmHg millimetre of mercury
0x00A00000
1
1. The CANopen value 0x00A00000 shows that the pressure unit is not an SI unit (refer to Appendix C, “Bibliography,”
on page 51).
0.7500616
cmHg centimetre of mercury
0x00A00000
a
0.07500616
mHg metre of mercury
0x00A00000 a
0.0007500616
inHg inch of mercury 0x00A00000
a
0.02953
kg/cm
2
kilogram-force per square centimetre
0x00A00000
a
0.001019716
kg/m
2
kilogram-force per square metre
0x00A00000
a
10.19716
mmH
2
O millimetre of water
0x00A00000
a
10.19716
cmH
2
O centimetre of water
0x00A00000
a
1.019716
mH
2
O metre of water 0x00A00000
a
0.01019716
torr torr 0x00A00000
a
0.7500616
atm atmosphere
0x00A00000
a
0.000986923
psi pound-force per square inch
0x00A00000
a
0.01450377
lb/ft
2
pound-force per square foot
0x00A00000
a
2.088543
inH
2
O 4°C inch of water at 4 °C
0x00A00000 a
0.4001775
inH
2
O 60°F inch of water at 60 °F 0x00A00000
a
0.4021858
ftH
2
O 4°C foot of water at 4 °C
0x00A00000
a
0.03345526
ftH
2
O 60°F foot of water at 60 °F
0x00A00000
a
0.03351545