Fluke MOLBOX RFM Operation And Maintenance Manual page 133

STDRES(=)
Purpose Read or set the molbox's two internal standard resistor values.
Syntax "STDRES"
"STDRES=R0
Arguments R0 :
100
R0 :
110
Remarks The standard resistor values are used to periodically calibrate the
PRT measurement system. These values are stored in the
molbox's factory data area, and should be modified with care.
You should not routinely modify these values, as you risk data
corruption in doing so. After modifying these values, a calibration
of the PRT measurement system will occur and an updated
measurement of the PRTs will not be available until this is
complete (about 20 seconds)
Example Command:
Reply:
Errors ERR# 6:
See Also "OHMS", "TEMP"
TARE
Purpose Read the current tare conditions and the current tare.
Syntax "TARE"
Remarks
The user should set the molbox RFM valves to the tare condition
(see "TARESETUP") and check the tare conditions before taring
the internal transducers (see "TARESET"). The returned data will
allow the user to determine if the current conditions will allow a
valid tare. The reply contains three or five fields which are
separated by commas.
The first field starts with an "R" if the system is ready to tare or
else an "NR". The "R" must be present to tare the transducers.
The system is ready to tare only if the current difference in
pressure [Pa] between the up and down stream RPTs without
tare is below 9999 Pa. If the microrange option is present, then
the microrange RPT pressure without tare must be below
999 Pa. The actual pressure rate of change in Pa/sec follows
this text.
The second field displays the current difference in pressure [Pa]
between the up and down stream RPTs without tare. The third
field shows the last tare value.
If the optional microrange option is present, then the microrange
RPT pressure [Pa] without tare will appear in a fourth field, and
the fifth field shows the last microrange tare value. All returned
values are in Pascal [Pa].
Example Command:
Reply:
Command:
Reply:
See Also 3.2.4.1, "TARESET", "TARESETUP"
Page 123
, R0
100 110
The 100 ohm standard resistor value (ohms).
The 110 ohm standard resistor value (ohms).
"STDRES=100.0022,110.0132"
"100.0022 Ohms, 110.0132 Ohms"
Values are invalid (must be between 1 and 199).
"TARE"
"R 0 Pa/s, 115 Pa, 108 Pa" (no microrange)
"TARE"
"R 0 Pa/s, 115 Pa, 108 Pa, 6 Pa, 3 Pa (with
microrange)
© 1998-2007 DH Instruments, a Fluke Company
4. REMOTE OPERATION