Fluke A70M User Manual

Page of 148
 
6.  TROUBLESHOOTING 
 
Page 129 
© 2007 DH Instruments, a Fluke Company 
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RPM4 is a sophisticated pressure setting and measuring instrument with advanced on-board features and 
functions.  Before assuming that unexpected behavior is caused by a system defect or breakdown, the 
operator should use this manual and other training facilities to become thoroughly familiar with RPM4 
operation.  This troubleshooting guide is intended as an aid in identifying the reason for RPM4 behavior 
and determining whether the behavior is normal operation or due to an internal or external problem. 
Identify the symptom or unexpected behavior you are observing from the SYMPTOM list below.   
A  PROBABLE CAUSE is provided and a SOLUTION  is proposed including references to manual 
sections that provide information that may be of assistance. 
Table 28.  Troubleshooting guide 
SYMPTOM 
PROBABLE CAUSE 
SOLUTION 
Will not power up.   
Blown fuse. 
Replace fuse. 
Cannot access certain functions 
>ACCESS RESTRICTED<
 
User level has been set that restricts access 
to certain functions. 
Change user level or consult system 
manager. 3.5.5.5 
Displays <FATAL ERROR> or 
<FATAL FAULT>
Encountered unresolved internal software 
conflict. 
Cycle power to clear.  Please record 
conditions leading up to event including 
the numbers displayed when [ENT] is 
pressed and report to your DHI 
Authorized Service Provider. Table 23 
Front panel keys seem to be 
disabled. 
”remote” command has been sent from a 
host computer. 
Send ”local” command from host 
computer or cycle RPM4 power. 4, 4.4.4 
Measured pressure display or 
other displays have too much/not 
enough resolution. 
Resolution setting needs to be changed. 
Change resolution setting using the 
resolution function, using AutoRange or 
by initializing an AutoTest. 3.4.2, 3.3.4, 
3.3.10 
Can’t increase resolution to level 
desired in AutoRanged range. 
Resolution setting is limited when 
AutoRanging under 10 % of Q-RPT default 
range. 
Operation is normal. 3.3.4, Table 6 
Values that should be non-zero 
are displayed as zero. 
Resolution setting needs to be increased to 
view significant digits. 
Change resolution setting. 3.4.2 
Keypad presses make undesired 
sounds or NO sounds. 
Keypad sound settings are incorrect. 
Use SOUND function to set keypad 
sounds as desired. 3.5.5.2 
Bottom line of display has 
changed and you want to change 
it back. 
The DISPLAY function has been used to 
change the display. 
Use [DISPLAY] to set bottom line to 
desired display. 3.3.6 
Bottom line of display is blank. 
DISPLAY mode is “clean”. 
Use [DISPLAY] to change bottom line 
display if desired. 3.3.6 
The pressure units available 
under the [UNIT] function key are 
not the ones you want. 
UNIT function needs to be customized. 
Use PresU function to customize the 
UNIT function or reset units to default.  
3.5.6, 3.5.9.2 
Front panel display is dim. 
Screen saver option has activated. 
Operation is normal.  Press any key to 
resume full screen power.  Adjust screen 
saver time, if desired.  3.5.5.1