DH Instruments PPC3 - Page 123

4. REMOTE OPERATION
Page 113 © 2002-2007 DH Instruments, a Fluke Company
ZOFFSETn
Purpose Read or set the AutoZ pressure offsets (P
offset
) for the specified or active RPT (preferred
method).
Command
Query
“ZOFFSETn GaOffset , AbsOffset”
“ZOFFSETn?”
Classic “ZOFFSETn =GaOffset , AbsOffset”
“ZOFFSETn”
Defaults “ZOFFSETn = 0.0 Pa, 0.0 Pa” (Gauge Q-RPT)
“ZOFFSETn = 101325 Pa, 0.0 Pa” (Absolute Q-RPT)
Optional Suffix “n” The active RPT is assumed if no suffix is given.
‘1’ Specify the Hi Q-RPT.
‘2’ Specify the Lo Q-RPT
Arguments GaOffset
AbsOffset:
The RPT pressure offset (“Poffset”) for Gauge measurement mode (Pa).
The RPT pressure offset for absolute measurement mode (Pa)
Remarks The pressure offset (P
offset
) for the specified internal RPT (IH or IL) or the active Q-RPT can be
accessed with this program message. There is a separate offset for gauge and absolute
measurement modes, but not all modes apply in all cases. (Gauge RPTs do not support
“AbsOffset).
Using this program message overwrites the current offset, so caution must be used. Changes
made using this program message take effect immediately. If no suffix is given and the active
RPT is in an external RPM4, then the P
offset
for that RPM4’s Q-RPT will be accessed.
Example
(enhanced)
Cmd sent:
Query reply:
“ZOFFSET1 2.1, 0”
“ 2.10 Pa, 0.00 Pa”
Example
(classic)
Sent:
Reply:
“ZOFFSET=97293.1, 3.02”
“ 97293.10, 3.02”
Errors ERR# 6: One of the arguments is out of range.
See Also 3.5.1
ZOFFSET:IH and ZOFFSET:IL
Purpose Read or set the AutoZ pressure offset (P
offset
) for the high (“IH”) or low (“IL”) Q-RPT and
current measurement mode. New designs should use the “ZOFFSETn” command.
Command
Query
“ZOFFSET:IH offset”
“ZOFFSET:IL offset”
“ZOFFSET:IH?”
“ZOFFSET:IL?”
Classic “ZOFFSET:IH =offset”
“ZOFFSET:IL =offset”
“ZOFFSET:IH”
“ZOFFSET:IL”
Defaults “ZOFFSET:IH = 0.0”
“ZOFFSET:IL = 0.0”
Arguments Offset: The Q-RPT pressure offset (“Poffset”) for the current measurement mode
(gauge or absolute) in Pa.
Remarks The pressure offset (P
offset
) for the specified Q-RPT (HI or Lo) in the current measurement
mode can be accessed with this program message. External Q-RPTs’ P
offset
cannot be adjusted
from PPC3. There is a separate offset for gauge and absolute measurement modes. Using
this program message will overwrite the current offset, so caution must be used. Changes
made using this program message take effect immediately.
Example
(enhanced)
Cmd sent:
Query reply:
“ZOFFSET:IL 2.1”
“ 2.10 Pa”
Example
(classic)
Sent:
Reply:
“ZOFFSET:IL=2.1”
“ 2.10 Pa”
Errors ERR# 6: One of the arguments is out of range.
See Also 3.5.1
ZOFFSETn:HI and ZOFFSETn:LO (PPC2+ legacy version)
Purpose
This command is included for reverse compatibility with PPC2+, and should only be
used if needed for command compatibility.
Otherwise, use “ZOFFSET:IH and “ZOFFSET:IL” with PPC3 to set value of AutoZ P
offset
.
See the PPC2 or PPC2+ manual for details on the use of this command.
See Also “ZOFFSET:IH”, “ZOFFSET:IL”, “ZOFFSETn”
3.5.1