Fluke A20M-AF, A70M, HPMS

4. REMOTE OPERATION

ARANGEn

Purpose Read or set a new AutoRange range to use.

Command

Query

“ARANGEn Range, unit, mode (,RptLabel)” (set to user defined range)

“ARANGE Q-RPTLabel” (set to Q-RPT default range)

“ARANGEn?”

Classic

Query

“ARANGEn= Range, units, mode (,RptLabel)” (set to user defined range)

“ARANGE= Q-RPTLabel” (set to Q-RPT default range)

“ARANGEn”

Optional Suffix “n” A suffix may be used instead of “RptLabel”

‘1’ Specify the Hi Q-RPT

‘2’ Specify the Lo Q-RPT

Range: The AutoRange maximum pressure. Cannot be negative.

Unit: The unit of measure of the Range argument.

Mode: The measurement mode of the Range argument:

“A” for absolute

“G” for gauge

Arguments

RptLabel:

(optional) One of the Q-RPTs that is available.

“IH”: Hi Q-RPT

“IL”: Lo Q-RPT

Remarks The ARANGE command is used to define an RPM4 range by specifying a desired unit of

measure, measurement mode and maximum pressure, and have the RPM4 pick the best

available Q-RPT and make adjustments to optimize operation in that range.

The optional suffix or the “RptLabel” argument can be used to specify which Q-RPT you

wish to use for the AutoRange range instead of allowing the RPM4 to pick the best Q-

RPT. By using this option you can override the internal logic that picks the most suitable Q-

Q-RPT. This Q-RPT specified must be valid for the maximum pressure and measurement

mode specified.

The reply indicates the current range data, including the Q-RPTLabel used for the range.

If “inWa” is specified for the unit, the temperature reference can be given after the unit

text (“inWa4”, “inWa20” or “inWa60” corresponding to inWa at 4 °C, 20 °C or 60 °F). If no

number is given, a default of 20 °C is assumed. There is no indication of the temperature

reference in the reply.

If you just specify the Q-RPTLabel without any other arguments, the Q-RPT specified will

become active in it’s last range and settings. The previously set unit and measurement

mode for the Q-RPT specified will become active.

Example

(enhanced) Cmd sent:

Query reply: “ARANGE?” (read the current range in the current units)

“100.00, psi, A, IH”

Example

(classic) Cmd sent:

Query reply: “ARANGE” (read the current range in the current units)

“100.00, psi, A, IH”

Example

(enhanced) Cmd sent:

Query reply: “ARANGE? 250, inWa4, G (range of 250 inWa @ 4 °C in gauge mode)

“250.00 inWa, G, IH” (Lo Q-RPT is used)

Example

(classic) Cmd sent:

Query reply: “ARANGE=500, kPa, G (range of 500 kPa in gauge mode)

“500.00 kPa, G, IL” (Lo Q-RPT is used)

Example

(enhanced) Cmd sent:

Query reply:

“ARANGE2 50, psi, A (range of 5 0 psi in absolute mode on

the Lo Q-RPT)

“50.000 psi, A, IL” (No reply if GPIB-488)

Example

(enhanced) Cmd sent:

Query reply:

“ARANGE IH (Hi Q-RPT’s previous range made active)

“500.000 kPa, A, IH” (No reply if GPIB-488)

Errors ERR# 6:

ERR#10:

ERR# 19:

ERR# 20:

ERR# 29:

ERR# 53:

“Range“ maximum pressure exceeds available Q-RPTs or is negative.

RPT specified by the optional suffix is not valid for the current operating

conditions

Cannot Range to ‘0’ with absolute units.

Cannot Range to ‘0’ with gauge units.

Correct type of Q-RPT for the selected “Mode” is not available.

RPT specified is not available.

See Also “RPT”, “RANGE”, “MMODE”, “UNIT”

3.3.4, .3.2.3, 3.3.3, 3.3.2

ATM

Purpose Reads the next measured pressure from RPM4’s on-board barometer (if present).

Query

Classic “ATM?”

“ATM”

Remarks The atmospheric pressure as measured by the RPM4 on-board barometer is returned in

the current pressure units of the active Q-RPT (always absolute). This measurement is

followed by the units text. Not all RPM4s are equipped with an on-board barometer.

Example

(enhanced) Query sent:

Query reply: “ATM?”

“97.12348 kPa a”

Example

(classic) Sent:

Reply: “ATM”

“97.12384 kPa a”

Errors ERR# 23: RPM4 is not equipped with a barometer.