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Parameter Units
Units
Meaning
PSI
Pressure in pounds per square inch.
KG/CM2 or KGCM2
Pressure in kilograms per square centimeter.
INHG
Pressure in inches of mercury at 0°C.
INH2O4C
Pressure in inches of water at 4°C.
INH2O20C
Pressure in inches of water at 20°C.
INH2O60F
Pressure in inches of water at 60°F.
INH2O68F
Pressure in inches of water at 68°F.
MMHG
Pressure in millimeters of mercury at 0°C.
MMH2O4C
Pressure in millimeters of water at 4°C.
MMH2O20C
Pressure in millimeters of water at 20°C.
CMH2O4C
Pressure in centimeters of water at 4°C.
CMH2O20C
Pressure in centimeters of water at 20°C.
MH2O4C
Pressure in meters of water at 4°C.
MH2O20C
Pressure in meters of water at 20°C.
MSW
Pressure in meters of sea water.
FTH2O4C
Pressure in feet of water at 4°C.
FTH2O20C
Pressure in feet of water at 20°C.
FTH2O60F
Pressure in feet of water at 60°F.
FTSW
Pressure in feet of sea water.
BAR
Pressure in bar.
MBAR
Pressure in millibar.
KPA or KPAL
Pressure in kiloPascal.
MPA or MPAL
Pressure in MegaPascal.
TORR
Pressure in Torr.
Error Codes
Error Number
Error Description
117
Unknown command.
118
Bad parameter value.
120
Input Buffer overflow.
122
Output Buffer overflow.
200
Invalid index.
9
Communications
APM CPF Series Operation Manual
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