Specifications

molbox™ RFM™ OPERATION AND MAINTENANCE MANUAL
© 1998-2007 DH Instruments, a Fluke Company Page 116
OHMS
Purpose Read the resistance of the active molbloc’s PRTs in ohms.
Syntax “OHMS”
Remarks The most recent molbloc upstream and downstream PRT
resistance measurement is returned in ohms. An error will be
returned if there is a problem reading the molbloc PRTs.
Example Command:
Reply:
“OHMS”
“107.075 Ohms, 107.079 Ohms”
Errors ERR# 42: There is an error in the molbox RFM PRT
measurement.
See Also 3.2.5, “TEMP”, “STDRES”
PCAL(=)
Purpose Read or set the user RPT calibration adjustments (PA, PM).
Syntax “PCAL=upadder, upmult, dnadder, dnmult, ( mradder, mrmult)”
“PCAL”
Defaults “PCAL=0, 1.00000, 0, 1.00000” (no microrange option)
“PCAL=0, 1.00000, 0, 1.00000, 0.0, 1.00000” (microrange option)
Arguments upadder: The upstream RPT calibration adder (PA) from –
10 000 to 10 000 Pa.
upmult: The upstream RPT calibration multiplier (PM) from
0.9 to 1.1.
dnadder: The downstream RPT calibration adder from –10
000 to 10 000 Pa.
dnmult: The downstream RPT calibration multiplier from
0.9 to 1.1
mradder: The optional microrange RPT calibration adder
from -10 000 to 10 000 Pa.
mrmult: The optional microrange RPT calibration multiplier
from 0.9 to 1.1.
Remarks The user defined pressure calibration for the upstream and
downstream RPTs can be access with this single command.
The adder is always in Pascal.
Example Command:
Reply:
“PCAL=38, 1.0021, 14, .9942” (no microrange
option)
“38 Paa, 1.00210, 14 Paa, 0.99420”
Command:
Reply:
“PCAL=38, 1.0021, 14, .9942, 6, 1.0001”
(microrange option)
“38 Paa, 1.00210, 14 Paa, 0.99420, 6.0 Paa,
1.0001”
Errors ERR# 6: Invalid argument.
See Also 5.2