Avg (Average) - Fluke RPM4-AD Operation And Maintenance Manual

RPM4-AD™ OPERATION AND MAINTENANCE MANUAL
The DISPLAY selection is Q-RPT specific. A DISPLAY selection made in one Q-RPT does
not apply to other Q-RPTs.
The default DISPLAY function is Rate which causes the second line of the display to show "R"
followed by the current rate of change of pressure in current pressure units per minute or
per second. In differential mode (<Hd>), the default DISPLAY function is RPT which
shows the measurement of the Lo Q-RPT .
3.3.6.1
To activate the Average DISPLAY and/or adjust the period of time over which
averaging occurs.
To access the Average DISPLAY, press [DISPLAY], <1Avg>. The display is:
Edit the averaging time period if desired. Pressing [ENT] returns to the MAIN
RUN screen with the Average DISPLAY active.
With the Average DISPLAY active the MAIN RUN screen is:
The Average DISPLAY has a second screen that allows the instantaneous
pressure readings to be viewed while an averaging cycle is running.
The instantaneous Average screen is:
The [+/-] key toggles between the MAIN RUN Average screen and the
instantaneous values Average screen.
© 2005-2007 DH Instruments, a Fluke Company

AVG (AVERAGE)

PURPOSE
See Section 3.3.6.
OPERATION
1. Edit field for averaging period in seconds.
Default is 20. Minimum 1, maximum 999.
1. Average measured over
averaging period.
2. Standard deviation of
averaging period.
3. Countdown in seconds until completion of on-
going averaging period.
1. Instantaneous pressure values at RPM4's
normal update rate.
2. Current rate of change of pressure in pressure
units/second.
3. Countdown in seconds until completion of on-
going averaging period.
Page 36
Principle.
Averaging Period:
last completed
96.929 kPa a
last completed
δ 0.0007
96.929 kPa a
R 0.0025
20 s
Hi
18Avg
Hi
18Avg