E-DWT-10000-AF OPERATION AND MAINTENANCE MANUAL
© 2008 DH Instruments, a Fluke Company
Page 84
RANGE
Purpose
Change the active range to the default range of the Hi or Lo Q-RPT. Replies the active range
full scale, pressure unit and measurement mode.
Command
Query
“RANGE
Rng
”
“RANGE?”
Classic “RANGE=
Rng
”
“RANGE ”
Default
“RANGE IH”
Rng:
“IH” for the Hi Q-RPT
“IL” for the Lo Q-RPT
Remarks
The active Q-RPT must be selected before making changes to settings that are dependent on the
range. Q-RPTs selected with this command are used with their full default pressure range. The reply
indicates the active range in psi.
Used as a simple query, the active range is returned, which can be an AutoRanged range or a
default range (see “ARANGE” cmd).
Example
(enhanced)
Cmd sent:
Query reply:
“RANGE? IL” (select internal Lo Q-RPT in it’s full default range)
“1000 psi g,IL”
Example
(classic)
Sent:
Reply:
“RANGE= IH” (select internal Hi Q-RPT in it’s full default range)
“10000 psi g, IH”
Example
(classic)
Sent:
Reply:
“RANGE”
(request
current
range)
“1000 psi g,IL”
Errors ERR#
6:
ERR# 29:
Invalid
Rng
argument.
The selected Q-RPT is not available.
See Also
“ARANGE”, “RPT”
3.1.1, 3.7.2, 3.7.5
RATEn
Purpose
Read the next available pressure rate of change.
Query “RATE
n
?”
Classic “RATE
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 rate of change in the current pressure unit per second is returned.
After receiving this program message, the RPM4-E-DWT replies back with the data once 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:
“RATE?”
“0.01 kPa/s”
Example
(classic)
Sent:
Reply:
“RATE2”
“0.03 kPa/s”
See Also
“PRR”, “QPRR”
3.7.7.2
READRATEn
Purpose
Read or set the specified or active Q-RPT read rate or auto read rate mode.
Command
Query
“READRATE
n
period
”
“READRATE
n
?”
Classic “READRATE
n
=
period
”
“READRATE
n
”
Optional Suffix
“n”
A suffix may be used instead of “
RptLabel
”
‘1’ Specify the Hi Q-RPT
‘2’ Specify the Lo Q-RPT
Arguments
“period ":
Period to integrate the measurement over (ms). Can be from 200 ms to 20000
ms. Set to ‘0’ to enable automatic read rate.
Remarks
The RPM4-E-DWT can have the speed in which it integrates each measurement (“read rate”)
automatically adjusted based on the rate, or it can manually set to a fixed period. Increasing the read
rate increases the reply time for pressure and rate queries.
Example
(enhanced)
Cmd sent:
Query reply:
“READRATE 1000”
“1000”
Example
(enhanced)
Cmd sent:
Query reply:
“READRATE? 1000”
“1000”
Example
(classic)
Sent:
Reply:
“READRATE=1000”
“1000”
Errors ERR#
6:
ERR#10:
The “
period
” argument is out of range.
The suffix ‘
n
’ is invalid
See Also
“PR”, “PRR”, “SR”
3.9.7.2
