Fluke RPM4 manual Check RPT connection, Displayed in second line, Ready green Ready/Not Ready

RPM4™ OPERATION AND MAINTENANCE MANUAL

SYMPTOM	PROBABLE CAUSE	SOLUTION
	The Q-RPT range does not cover the desired	Check that Q-RPT default range is high
	AutoRange.	enough to cover the AutoRange. Table 1
AutoRange is not selecting the	The specified operating mode is absolute or	Check that absolute/negative gauge is ON
	negative gauge and absolute and negative
desired Q-RPT for the specified		for the Q-RPT. 5.2.5
	modes are OFF for the desired Q-RPT
range.
	The Q-RPT is Gxxx (gauge only) and the	Check that the Q-RPT type supports the
	specified operating mode is absolute or
		desired measurement mode. 3.3.3
	negative gauge..
Range will NOT change. Displays	The pressure currently applied to the range	Reduce pressure applied to test port to
“Pressure on Hi (or Lo) RPT	that is being selected exceeds the UL (upper
		less than UL of target range. 3.4.4
exceeds RR upper limit”.	limit) set for that range.
Pressure display is flashing and	Current upper limit of active range has been	Reduce pressure. Change UL and/or
beeper is sounding intermittently.	exceeded.	active range if needed. 3.4.4
Pressure display is flashing and		Reduce differential pressure and/or
beeper is sounding intermittently	Differential pressure upper limit OR Hi Q-	pressure on Hi Q-RPT to be less than
while operating in differential	RPT upper limit is exceeded.	upper limit values or change upper limit
mode.		value(s). 3.4.4, 3.3.3.1
Pressure display is NOT flashing	Lo Q-RPT upper limit is exceeded. If Lo Q-	Reduce pressure on Lo Q-RPT or
and beeper is sounding
	RPT is displayed on second line, its
intermittently while operating in		change its upper limit. 3.4.4, 3.3.3.1
	measured pressures is flashing.
differential mode.
“Hi (or Lo) RPT EXCEEDED	RPM4 Q-RPT has been overpressured	Correct the overpressure condition and
PMAX” displays alternating with		cycle power ON and OFF to clear.
	(Pmax! exceeded).
normal display.		3.4.4.1
		If parallel measurement mode is not
Rapid beeping for 8 seconds and	RPM4 is in parallel measurement mode and	desired, change ranges or turn it off.
		If parallel measurement is desired,
	the disagreement in pressure measured by
<Check RPT connection>		check that the Hi and Lo Q-RPTs are
	the two Q-RPTs indicates they may not be
displayed in second line.		connected to the same pressure.
	connected in parallel.
		Ignore if having the two Q-RPTs on two
		different pressures is intentional. 3.5.7.3
A Ready (green Ready/Not Ready	Stability settings is too tight and/or existing	Adjust stability setting or correct other
indicator) indication is never	conditions will not allow Ready to be
		conditions. 3.4.3, 3.2.1
achieved.	achieved.
Cannot select absolute or negative	Q-RPT is Gxxx and does not support	Operation is normal. 3.3.3
gauge measurement mode.	absolute and gauge measurement modes or
	RPM4 must have two Q-RPTs of the same
Cannot select differential	type (Axxx, Gxxx, BGxxx) and the current	If RPM4 has two Q-RPTs of the same type,
	range must be the default range (<DF>) of	set the default range of the Hi Q-RPT.
measurement mode.
	the Hi Q-RPT for differential measurement	3.3.3.1
	mode to be available.
Q-RPT is Axxx (absolute) but	Absolute and negative gauge measurement	Check that absolute/negative gauge is ON
cannot select absolute or negative	mode have been turned off in the calibration
		for the Q-RPT. 5.2.5
gauge measurement mode.	function.
Display update rate of indicated	RPM4 automated read rate function is ON to	Operation is normal. Turn automated
pressure changes when changing	automatically adjust read rate depending
		read rate function OFF if desired. 3.5.7.2
pressure.	upon rate of change of pressure.
Pressure is changing but display	Average DISPLAY function is ON and	Go to a DISPLAY function other than
of pressure is NOT and the
	pressure display is updating only with the	average or press [+/-]to get the
bottom right hand corner of the
	average value at the end of each averaging	instantaneous value Average DISPLAY.
display is a numerical countdown
	cycle.	3.3.6
followed by <avg>.
Display update of indicated		Turn automated read rate function ON to
pressure is too slow when	RPM4 automated read rate function is OFF.	automatically adjust read rate depending
pressure is changing quickly.		on pressure rate of change. 3.5.7.2
Pressure measurement seems	The RPM4 and/or the connection to the test	Purge and clean affected systems.
		Contact DHI Authorized Service
erratic when measuring gas
	system is contaminated with liquids.	Provider if RPM4 is contaminated
pressure.
		internally. Table 29
Pressure indicated by RPM4	These is a leak in the pressure system to	Find and correct leak. Consider using
never becomes stable.	which RPM4 is connected.	RPM4 leak check function. 3.3.5

© 2004-2007 DH Instruments, a Fluke Company Page 132