™/S, MOLBLOC TERMINAL OPERATION AND MAINTENANCE MANUAL
© 1995 - 2010 Fluke Corporation, DH Instruments Division
Page 136
USERCAL(=)
Purpose
Read or set the user flow measurement adjustment.
Syntax
“USERCAL=
adder
, mult”
“USERCAL”
Defaults
“USERCAL=0, 1”
Arguments
Adder
:
Mult:
The flow
adder
in the current flow unit and gas type (0 to FS).
The flow
multiplier
(0.1 to 2).
Remarks
The user definable adjustment lets the user modify the measured flow. The
adder
and
multiplier
are separated by a comma. The
adder
is in the current flow unit.
This adjustment will be applied to any molbloc connected to the .
Example
Command:
Reply:
“USERCAL=.58,.995”
“0.58 sccm, 0.995000”
Errors
ERR# 6:
The
adder
or
multiplier
argument is invalid.
See Also
3.5.3
UTEMP
Purpose
Read or set the temperature reference used for the volumetrically based mass flow
unit with user defined reference temperature.
Syntax
“UTEMP=temp”
“UTEMP”
Defaults
“UTEMP=0” (
°
C)
Arguments
Temp:
The reference temperature in the current temperature unit of
measure.
Remarks
This temperature reference is used by the user defined units.
Example
Command:
Reply:
“UTEMP=20”
“20.00 C”
See Also
3.4.3.1, 3.4.3.4, “FUNIT”, “TUNIT”
VALVE(=)
Purpose
This command is obsolete and should
not be used
in new designs. The TARESETUP
and PURGE commands should be used instead for special valve operations.
Syntax
“VALVE=xxx”
“VALVE”
Arguments
xxx:
The driver bitfield.
Remarks
This command is obsolete.
Example
Command:
Reply:
“VALVE=5”
“5”
Errors
ERR# 6:
The xxx argument is not between 0 and 255.
See Also
“TARESETUP”, “PURGE”
VER
Purpose
Read the version.
Syntax
“VER”
Remarks
The software version of the can be read. This is useful for checking for
the presence of the and for reference purposes.
Example
Command:
Reply:
“VER”
“DH INSTRUMENTS, INC Ver5.10 ”
VLM(=)
Purpose
Read or set the volume flow unit of measure pressure temperature conditions.
Syntax
“VLM=pres(,temp)”
“VLM”
Defaults
“VLM=101.325 kPaa, 20
°
C”
Arguments
pres:
Temp:
The user defined pressure in the current pressure unit.
The user defined temperature in the current temperature unit. If this
field is omitted, and just the pressure is given, then the molbloc
temperature will be used as temperature.
Remarks
The flow volume units "ccm", "lm", "lh", "m3m", "m3h", "cfm" and "cfh" require
pressure and a temperature conditions to be specified by the user.
Example
Command:
Reply:
Command:
Reply:
“VLM=200”
“200.00 kPaa” (molbloc temp will be used)
“VLM=200, 15”
“200.00 kPaa, 15
°
C” (user defined temp will be used)
Errors
ERR# 6:
One of the arguments is invalid.
See Also
3.4.3.1, 3.4.3.4 “FUNIT”
