Troubleshooting; Troubleshooting Instructions - Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual

Levelflex M FMP43 with FOUNDATION Fieldbus
Endress+Hauser
9

Troubleshooting

9.1

Troubleshooting instructions

Levelflex M -Trouble Shooting
Check voltage and
Instrument does compare it with the
not respond specifications on the
nameplate.
Check the polarity
of the voltage.
Check power connection
to electronic board
Yes
Values on display
Contrast:
invissible
No
Yes
Output current
< 3.6 mA ? (2 wire)
< 2.4 mA ? (4 wire)
Is the communication
HART
Yes
resistor installed
communication
according to the
does not
OM?
function
Is the switch on the
Commubox for
selecting HART
in the correct position?
Communication
Yes
PA does not
function
Communication
Yes
via Service adapter
Check configuration
does not function
of COM port on PC
Instrument
Yes
measures
Check basic setup
incorrectly
Proceed according
to section
'Trouble shooting' in OM
Not ok
Connect the
correct voltage
ok
Not ok
Correct the polarity
ok
Not ok
Connect plug
ok
ok
F O
+
Not ok
Not ok
Check plug contact Connect the plug
of the display. correctly
ok
Yes
Output current between The display is possibly defective.
3.6 ...22mA ? Contact Endress+Hauser Service
No
Not ok
Correct the
Check cabling
cabling
ok
Possibly defective electronics
Contact Endress+Hauser Service
Not ok
Install the fuse
(see the OM)
ok
Is the Commubox Connect the
Not ok
connected according Commubox
to the OM? (see the OM)
ok
Not ok
Set the switch
correctly
ok
Not ok
Check cabling +
Correct cabling +
terminator
terminator
ok
Check screening
Yes
(see BA Section
EMC interference?
'Connection')
No
Not ok
Correct configuration
Not ok
Repeat
basic setup
ok
Troubleshooting
Yes
Instrument works? Ready
No
Yes
Instrument works? Ready
No
Yes
Instrument works? Ready
No
Ready
Yes
Ready
Display works?
No
Yes
Current is ok? Ready
No
Yes
Communication ok? Ready
No
Yes
Communication ok? Ready
No
Yes
Communication ok ? Ready
No
Contact Endress+Hauser Service
Yes
Communication ok? Ready
No
Yes
Communication ok? Ready
No
Contact Endress+Hauser Service
Yes
Communication ok? Ready
No
Contact Endress+Hauser Service
Yes
Measurement ok?
Ready
No
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