Specifications

molbox™ RFM™ OPERATION AND MAINTENANCE MANUAL
© 1998-2007 DH Instruments, a Fluke Company Page 118
PRDP
Purpose Read the last molbloc microrange transducer pressure.
Syntax “PR”
Remarks The last measured pressure from the optional microrange
differential pressure transducer is read in the current pressure
unit of measure. It is tare corrected. Depending on the molbloc
pressure, the microrange transducer may be bypassed. If it is
bypassed (both RPT inputs connected together to the upstream
pressure), then a ‘>‘ will appear in the reply to indicate that the
measurement does not represent the differential pressure across
the molbloc.
Example Command:
Reply:
Reply:
“PRDP”
“10.5 kPa” (RPT is not bypassed - it is active)
“>10.5 kPa” (RPT is bypassed - it is inactive)
Errors ERR# 23: The microrange option is not installed.
See Also 3.1.2.6, “DP”, “PR”, “PRHI”, “PRLO”
PRHI
Purpose Read the last measured upstream absolute pressure (tare
corrected).
Syntax “PRHI”
Remarks The current upstream pressure value (corrected for tare) is
returned in the current pressure unit of measure.
Example Command:
Reply:
“PRHI”
“247.56 kPaa”
See Also “DP”, “PRDP”, “PR”, “PRLO”
PRLO
Purpose Read the last measured downstream absolute pressure
(tare corrected).
Syntax “PRLO”
Remarks The current downstream pressure value (corrected for tare) is
returned in the current pressure unit of measure.
Example Command:
Reply:
“PRLO”
“224.67 kPaa”
See Also “DP”, “PRDP”, “PR”, “PRHI”