E-DWT-10000-AF OPERATION AND MAINTENANCE MANUAL
© 2008 DH Instruments, a Fluke Company
Page 82
PCALn
Purpose
Read or set the calibration information for the Hi or Lo Q-RPT.
Command
Query
“PCAL
n adder, mult, CalDate
”
“PCAL
n
?”
Classic “PCAL
n= adder, mult, CalDate
”
“PCAL
n
”
Defaults “PCAL
n
= 0.0, 1.0, 19800101”
“n”
The active Q-RPT is assumed if no suffix is given. The Hi Q-RPT is assumed if the HL
Q-RPT is active and no suffix is given.
‘1’ Specify the Hi Q-RPT
Optional Suffix
‘2’ Specify the Lo Q-RPT
Arguments
Adder:
The Q-RPT calibration adder (PA). In Pascal.
Mult:
The Q-RPT calibration multiplier (PM) from 0.1 to 100.
CalDate:
The date of the calibration in the format “YYYYMMDD” by default. Any other
format up to 8 characters long is also accepted, and the replied format is in the
previously entered format.
Remarks
The user defined pressure calibration information for the specified Q-RPT (Hi or Lo) can be
accessed with this program message. Using this program message overwrites the current
calibration coefficients, so caution must be used. Changes made using this program message
take effect immediately.
For compatibility with the obsolete style PPC3 “PCAL:HI” and “PCAL:LO” commands, “:HI” and
“:LO” can be used in place of the suffix
“n”
but this is not recommended for new applications.
Example
(enhanced)
Cmd sent:
Query reply:
“PCAL2? 2.1, 1.000021, 20011201”
“ 2.10 Pa, 1.000021, 20011201” (No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply:
“PCAL? 2.1, 1.000021, 20011201”
“ 2.10 Pa, 1.000021, 20011201”
Example
(enhanced)
Cmd sent:
Query reply:
“PCAL:HI? 2.1, 1.000021, 20011201” (PPC3 style is OK)
“ 2.10 Pa, 1.000021, 20011201”
Example
(classic)
Sent:
Reply:
“PCAL1=2.1, 1.000021, 20011201”
“ 2.10 Pa, 1.000021, 20011201”
Errors ERR#
6:
ERR# 10:
One of the arguments is out of range.
The suffix is invalid.
See Also
5.2.2
PRn
Purpose
Read the next available pressure measurement.
Query “PR
n
?”
Classic “PR
n
”
Optional Suffix
“n”
A suffix may be used instead of “
RptLabel
”
‘1’ Specify the Hi Q-RPT
‘2’ Specify the Lo Q-RPT
Remarks
The next available pressure value for the specified or active Q-RPT is read in the current pressure
units. The data returned also contains
Ready/Not Ready
information, and the pressure unit of
measure and measurement mode.
The reply field is always 20 characters long. The first 3 characters of the reply are reserved for the
ready status. The ready status is described in the “SR” program message. The pressure value and
pressure unit of measure are right justified in this field.
After receiving this program message, the RPM4-E-DWT replies back with the data after a new
pressure measurement cycle is complete. This can take up to the current read rate period (1.2
seconds by default).
Example
(enhanced)
Query sent:
Query reply:
“PR?”
“R 1936.72 kPa g”
Example
(classic)
Query sent:
Reply:
“PR”
“R 1936.72 kPa g”
See Also
“PRR”, “QPRR”, “SR”, “ABORT”, “READRATE”
3.6.1, 3.1.2, 3.9.7.2
