E-DWT-H OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company
Page 82
AUTOZERO
n
Purpose
Read or set the status of the AutoZ function.
Command
Query
“AUTOZERO
n
state
”
“AUTOZERO
n
?”
Classic “AUTOZERO
n
=
state
”
“AUTOZERO
n
”
Default “AUTOZERO1”
Optional Suffix
“n”
A suffix may be used instead of “
RptLabel
”
‘1’ Specify the Hi Q-RPT
‘2’ Specify the Lo Q-RPT
Arguments
‘state’
:
’0’ Autozero OFF
’1’ Autozero ON
Remarks
The RPM4-E-DWT AutoZ function can be turned ON and OFF.
Example
(enhanced)
Cmd sent:
Query reply:
“AUTOZERO 0”
“0”
(No reply if GPIB-488)
Example
(classic)
Sent:
Query reply:
“AUTOZERO=0”
“AUTOZERO=0”
Errors ERR#
7:
ERR# 10:
The argument was other than ‘0’ or ‘1’.
The suffix is invalid.
See Also
“ZOFFSET”
3.9.1
AUTOZERO
n
=RUN
Purpose
Run the AutoZero routine.
Command
Query
“AUTOZERO
n
RUN (,
Pref
)”
“AUTOZERO
n
? RUN (,
Pref
)”
Classic “AUTOZERO
n
= RUN (,
Pref
)”
Optional Suffix
“n”
A suffix may be used instead of “
RptLabel
”
‘1’ Specify the Hi Q-RPT
‘2’ Specify the Lo Q-RPT
Arguments
‘Pref’
:
The AutoZ reference pressure in Pa. Optional when the RPM4-E-DWT is not in
absolute measurement mode, as the reference is usually “0”.
Remarks
The RPM4-E-DWT AutoZ function can be remotely run with this command only if
AutoZero is ON. You should ensure that the pressure is stable for valid determination of
Z
offset
.
Example
(enhanced)
Cmd sent:
Query reply:
“AUTOZERO RUN”
“OK”
(No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply:
“AUTOZERO? RUN, 0”
“OK”
Example
(classic)
Sent:
Query reply:
“AUTOZERO=RUN”
“OK”
Errors ERR#
10:
ERR# 53
Invalid suffix
AutoZero is currently OFF.
See Also
“ZOFFSET”, “AUTOZERO”
3.9.1, 3.7.10
CALAMB
Purpose
Read or set the on-board barometer calibration.
Command
Query
“CALAMB
adder, mult, CalDate
”
“CALAMB?”
Classic “CALAMB
=adder, mult, CalDate
”
“CALAMB”
Defaults “CALAMB
= 0.0, 1.0, 19800101”
Arguments
Adder:
The Barometer calibration adder (PA), in Pascal.
Mult:
The Barometer calibration multiplier (PM) from 0.1 to 100.
CalDate:
The date of the calibration in the format “YYYYMMDD”
Remarks
The barometer calibration information can be accessed with this program message. Using this
program message overwrites the current calibration coefficients, so caution must be used.
Changes made take effect immediately.
Example
(enhanced)
Cmd sent:
Query reply:
“CALAMB? 2.1, 1.000021, 20011201”
“ 2.10, 1.000021, 20011201”
Example
(classic)
Sent:
Reply:
“CALAMB=2.1, 1.000021, 20011201”
“ 2.10, 1.000021, 20011201”
Errors
ERR# 6:
One of the arguments is out of range.
See Also
3.9.7.1, 5.2.2
Summary of Contents for E-DWT-H
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