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RPM4™ OPERATION AND MAINTENANCE MANUAL
© 2004-2007 DH Instruments, a Fluke Company Page 32
OPERATION
To use the AutoRange function, press [AutoRange] and respond to the RPM4’s prompts.
Select AutoRange measurement mode: The screen is identical in appearance and
function to the [MODE] screen (see Section 3.3.3). The choice of measurement modes
offered reflects all the Q-RPT types available (Axxx, Gxxx, BGxxx) in the RPM4 system,
not just the active Q-RPT.
Differential pressure measurement mode (see Section 3.3.3.1) is not available in
AutoRange.
Select pressure unit of measure: The screen is identical in appearance and function
to the [UNIT] screen (see Section 3.3.2).
Altitude units of measure (m, ft) are not available for AutoRange.
Enter the AutoRange full scale pressure: Enter the full scale pressure value in the
<------> entry field and press [ENT]. If the full scale value entered cannot be covered by
any of the Q-RPTs available, an error message appears. If the full scale value can be
covered, AutoRange proceeds to the range display.
View proposed AutoRange range: The proposed AutoRange range screen is:
1. Indication that this is a screen of the proposed AutoRange range.
2. Designator and position of the Q-RPT that AutoRange has selected
to cover the AutoRange full scale and measurement mode.
3. Pressure unit of measure specified in AutoRange.
4. AutoRange full scale pressure in gauge mode and absolute
mode if available. Absolute mode only if AutoRange measurement
mode is absolute and full scale is less than 100 kPa (14.5 psi).
Gauge mode only if the Q-RPT is a Gxxx or BGxxx or an Axxx
with absolute mode turned off.
AutoRange A700K Hi
kPa 300g/100a
If the RPM4 has two Q-RPTs and you would like to select the other one for the
AutoRange, the cursor control keys may be used to toggle between Q-RPTs selections if
both Q-RPTs can handle the specified AutoRange.
Accept proposed AutoRange: To accept the proposed AutoRange and go to the MAIN
RUN screen with the AutoRange range active, press [ENT] or [AutoRange]. To modify
the AutoRange full scale, measurement mode or pressure unit of measure, use [ESC] to
back through the AutoRange screens and make changes.
To verify or confirm the range from the MAIN RUN screen, use [+/-] or [RANGE] to
view the active range (see Section 3.3.1).
See Table 6 for a listing of all selections and settings affected by AutoRange and
their default values.
The BA100K Q-RPT cannot be AutoRanged.