Endress+Hauser Levelflex M FMP40, Operating Instructions Manual

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Levelflex M FMP40 with HART/4...20 mA Troubleshooting
Hauser 67
9 Troubleshooting
9.1 Troubleshooting instructions
L00-FMP4xxxx-19-00-00-en-101
?
ok
No
Contact Service Endress + Hauser
Instrument does
not respond
Check voltage and
compare it with the
specifications on the
nameplate.
Connect the
correct voltage
Instrument works? R eady
Check the polarity
of the voltage.
Check power connection
to electronic board
Correct the polarity
Connect plug
Instrument works?
Instrument works?
R eady
R eady
V alues on display
invissible
ok
ok
ok
Yes
Yes
Yes
No
No
No
No
Not ok
Not ok
Not ok
Check plug contact
of the display. Connect the plug
correctly
Correct configuration
Display works?
R eady
R eady
Yes
ok
Not ok
Yes
No
L e v e l f l e x M - T rou b l e Shoot i ng
ok
O utput current between
3.6 …22mA ?
Contrast:
F O
+
The display is possibly defective.
Contact Endress
+ Hauser Service
Yes
O utput current
< 3.6 mA ? (2 wire)
Check cabling
Correct the
cabling
Current is ok? R eady
Yes
No
Possibly defective electronics
Contact Endress
+ Hauser Service
HA R T
communication
does not
function
Is the communication
resistor installed
according to the
OM ?
Install the fuse
(see the
OM )
Communication ok R eady
R eady
ok
Yes
Yes
No
No
Connect the
Commubox
(see the
OM )
Communication ok? R eady
Set the switch
correctly
Communication ok R eady
R eady
Contact Service Endress + Hauser
ok
Yes
No
Yes
Yes
No
ok
Not ok
Not ok
Not ok
Not ok
Not ok
Is the switch on the
Commubox for
selecting HA
R T
in the correct position?
Is the Commubox
connected according
to the
OM ?
Communication
via Service adapter
does not function
Instrument
measures
incorrectly
Check configuration
of C
OM port on PC
Check basic setup
Proceed according
to section
'Trouble shooting’ in
OM
R epeat
basic setup
Not ok
Yes
Yes
Yes
Yes
Communication ok?
ok.
nein
Not ok
M easurement ok?
?