3. OPERATION
Page 15 © 2004-2007 DH Instruments, a Fluke Company
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3.1 USER INTERFACE
RPM4 is designed to offer a balance between simple, straight forward operation and the availability of a
wide variety of advanced functions with a high level of operator discretion. The local operator interface is
through a 2 x 20 character alphanumeric display, a function/data keypad, a cursor control pad and a
Ready/Not Ready indicator.
Remote communications are by RS232 (COM1) and IEEE-488. See Section 4 for information on remote
communication.
3.1.1 MAIN RUN SCREEN
The RPM4 MAIN RUN screen is its home display that is reached on power-up and from
which other functions and menus are accessed. It is the very top level of all menu structures.
The MAIN RUN screen is where RPM4 is left in normal operation. It displays the current
measured pressure as well as a variety of additional information if desired.
Figure 3 and its legend summarize the RPM4 MAIN RUN screen fields and their functions.
RPM4 has a screen saver function which causes the display to dim if no key is pressed for
10 minutes. Pressing a key restores full power to the display. The screen saver time can
be changed or screen saving can be completely suppressed (see Section 3.5.5.1).
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