PG9602™ OPERATION AND MAINTENANCE MANUAL
© 2011 Fluke Calibration
Page
132
DIFLOAD
Purpose
Executes the mass load determined by the DIFSETUP command.
Syntax
“DIFLOAD”
Remarks
This command must be preceded by the DIFSETUP command. The DIFSETUP
command sets up the PG9000 and determines the proper mass load for offset
determination.
The DIFLOAD command executes the mass load determined by the DIFSETUP
command and places the PG9000 into the offset determination mode. When in this
mode, use the DIFOFFSET command to query the PG for the calculated differential
offset. The DIFOFFSET command is also used to save the offset as the new differential
mode RPM offset value, and to exit the offset determination mode. The ABORT
command can also be used to exit the offset determination mode.
The reply is the same nominal mass values returned by the DIFSETUP command that is
expected to be loaded.
Example
Typical command:
Typical reply:
“DIFLOAD”
“9.7 kg, 28.05 g”
Error
See the “DIFSETUP” and “DIFOFFSET” commands.
ERR #1
ERR #23
ERR #35
Argument is invalid.
Vacuum reference not supported by this PG9000.
The “DIFSETUP” was not used prior to this command.
See Also
3.10.4.1, “DIFLOAD”, “DIFSETUP”
DIFOFFSET(=)
Purpose
Set or read the differential offset value.
Syntax
“DIFOFFSET=offset, pressure”
“DIFOFFSET”
Default
Offset:
Pressure:
0 Pa
101325.0 Paa
Argument
Offset:
“NEW”
Saves the current calculation of RPM offset if PG9000 is
currently in the offset determination mode, else set the
differential offset value in Pa.
Pressure:
The PG9000 defined pressure when the previously determined
differential offset was saved or if
Offset
is “NEW”. This
argument is ignored and should not be used.
Remarks
The DIFOFFSET commands have two types of operation.
If PG9000 is in the offset determination mode, the calculated offset of the external
measurement device from the PG9000 defined pressure is returned along with the
current PG9000 pressure. If the “NEW” arguments is given with this command, the
calculated offset and PG9000 pressure are saved as the new RPM offset and pressure,
and PG9000 exits the offset determination mode returning to normal operation with
differential measurement mode enabled.
If the PG9000 is not in the offset determination mode, this command reads back only
the RPM offset and pressure as determined previously. The command can also be
used to set them to another value.
Example
Typical command:
Typical reply:
“DIFOFFSET=7.1,97.100”
“7.10 Pa, 97.10 000 Paa”
If PG7601 is in the offset determination mode:
Typical command:
Typical reply:
“DIFOFFSET=NEW”
“4.13 Pa, 96.14321 Paa”
Error
See the “DIFSETUP” and “DIFLOAD” commands.
ERR #1
ERR #2
ERR #35
The Offset field is invalid or missing.
The Pressure field is invalid or missing.
Offset was “NEW” but the PG is not in the offset determination
mode.
See Also
3.10.4.1, “DIFLOAD”, “DIFSETUP”
Summary of Contents for PG9000 Series
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