6. TROUBLESHOOTING
Page 129
© 2005-2007 DH Instruments, a Fluke Company
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RPM4-AD 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-AD operation. This troubleshooting guide is intended as an aid in identifying the reason for RPM4-D
behavior and determining whether the behavior is due to normal operation or 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 32.
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 restrict 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 34
Displays
<ERR# 60>
.
Unit of measure and measurement mode are
not compatible. Can only occur when unit
and measurement mode are set by remote
commands and unit of measure is an air data
unit (altitude in a mode other than absolute
or airspeed in absolute mode are
nonsensical).
Use front panel or remote commands to
change measurement mode or unit of
measure to a valid combination. 3.3.2,
3.3.3,
Error! Reference source not
found.
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-AD 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. 3.4.2
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 keypad 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”.
Operation is normal. Use
[DISPLAY]
to
change bottom line display if desired.
3.3.6
Cannot get to air data units
measurements
Not selecting correct Q-RPT and/or
measurement mode.
Use a and airdata shortcut under
[RANGE]
. 3.3.1
Cannot change altitude unit of
measure on bottom line of display.
Not using correct feature.
Select [DISPLAY], <4PRT> to select the
altitude unit for the bottom line display
with HL, absolute or Hi, ab
differential Q-RP Tactive. 3.3.6.4
The pressure units available
under the
[UNIT]
function key are
UNIT function needs to be customized.
Use PresU function to customize the
UNIT function or reset units to default.
3.5.6
