Fluke HPMS - Manual (Page 28)

RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 18
3.1.3 REMOTE [ENT] (ENTER) FOOTSWITCH
Operating the footswitch is the equivalent of pressing [ENT] on the front panel.
The remote ENTER feature can be particularly convenient when running AutoTests (see
Section 3.3.10) in which the operator’s hands are not free or attention is on the device under
test rather than the RPM4.
3.1.4 SOUNDS
RPM4 is equipped with a variable frequency tone device to provide audible feedback and
alarms. The beeper is used for the following indications.
Valid key press Brief beep. Choice between three frequencies or NO
sound is available (see Section 3.5.5.2).
Invalid key press Descending two tone “blurp”.
Change HPMS Lo Q-RPT
shut-off valve setting Four one second beeps (see Section 3.2.5, 3.3.1).
Leak check completed Three two second beeps (see Section 3.3.5).
Upper or lower limit exceeded Intermittent one second beeps (see Section 3.4.4).
Pmax! (overpressure limit)
exceeded Eight second high frequency beep (see Section 3.4.4.1).
Hi Q-RPT is selected but Lo
Q-RPT is being pressurized Intermittent two second high frequency beep. The audible
alarm is combined with flashing of the red, Lo Q-RPT
Active LED on the HPMS (see Section 3.2.5, 3.3.1).
AutoTest in/out of tolerance
reading Ascending triad/descending triad (see Section 3.3.10).
3.2 GENERAL OPERATING PRINCIPLES
3.2.1 PRESSURE READY/NOT READY
There is a Ready/Not Ready indicator LED on the RPM4 front panel. It is intended to provide
the user with a clear and objective indication of when a stable pressure has been achieved.
Ready is indicated when the current stability (rate of change) of pressure is less than the
stability limit. The user can set the stability limit (see Section 3.4.3) and the stability limit can
be set automatically by a AutoRange or AutoTest (see Section 3.3.4, 3.3.10). The Ready
indication is often used when comparing the RPM4 and a test device to indicate when a valid
reading can be made.
The Ready/Not Ready LED indications are:
<Green > Pressure Ready The pressure stability is within the stability limit.
<Red> Pressure Not Ready The pressure stability is NOT within the stability limit.