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RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL
RANGE
Purpose
Command
Query
Classic
Default
Remarks
Example
(enhanced)
Example
(classic)
Example
(classic)
Errors
See Also
RATEn
Purpose
Query
Classic
Optional Suffix
Remarks
Example
(enhanced)
Example
(classic)
See Also
READRATEn
Purpose
Command
Query
Classic
Optional Suffix
Arguments
Remarks
Example
(enhanced)
Example
(enhanced)
Example
(classic)
Errors
See Also
© 2007 DH Instruments, a Fluke Company
Change the active range to the default range of the Hi or Lo. Replies the active range full
scale, pressure unit and measurement mode.
"RANGE Rng"
"RANGE?"
"RANGE= Rng"
"RANGE "
"RANGE IH"
"IH" for the Hi Q-RPT
Rng:
"IL" for the Lo Q-RPT
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 if the RPM4 is a "US" version or in kPa if the RPM4 is an "SI" version.
Used as a simple query, the active range is returned, which can be an AutoRanged range or a
default range (see "ARANGE" cmd).
Cmd sent:
"RANGE? IL"
Query reply:
"2.2 psi g,IL"
Sent:
"RANGE= IH"
Reply:
"1000 psi a, IH"
Sent:
"RANGE"
Reply:
"220 psi a,IL"
ERR# 6:
Invalid Rng argument.
ERR# 29:
The selected Q-RPT is not available.
"ARANGE", "RPT"
3.2.3, 3.3.1, 3.3.4
Read the next available pressure rate of change.
"RATEn?"
"RATEn"
"n"
The active Q-RPT is assumed if no suffix is given.
'1'
Specify the Hi Q-RPT
'2'
Specify the Lo Q-RPT
The next available pressure rate of change in the current pressure unit per second is returned.
After receiving this program message, the RPM4 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).
Query sent:
"RATE?"
Query reply:
"0.01 kPa/s"
Sent:
"RATE2"
Reply:
"0.03 kPa/s"
"PRR", "QPRR"."READRATE"
3.3.6.2
Read or set the specified or active Q-RPT read rate or auto read rate mode.
"READRATEn period"
"READRATEn?"
"READRATEn= period"
"READRATEn"
"n"
The active Q-RPT is assumed if no suffix is given.
'1'
Specify the Hi Q-RPT
'2'
Specify the Lo Q-RPT
Period to integrate the measurement over (ms). Can be from 200 ms to 20000
"period ":
ms. Set to '0' to enable automatic read rate.
The RPM4 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. In differential mode and when using the HL Q-RPT, the
Lo Q-RPT read rate is always set to the same read rate as the Hi.
Cmd sent:
"READRATE 1000"
Query reply:
"1000"
Cmd sent:
"READRATE? 1000"
Query reply:
"1000"
Sent:
"READRATE=1000"
Reply:
"1000"
ERR# 6:
The "period" argument is out of range.
ERR#10:
The suffix 'n' is invalid
"PR", "PRR", "SR"
3.5.7.2
Page 90
(select internal Lo Q-RPT in it's full default range)
(select internal Hi Q-RPT in it's full default range)
(request current range)
(No reply if GPIB-488)
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