Trouble-Shooting; Trouble-Shooting Instructions - Endress+Hauser Levelflex M FMP45 Operating Instructions Manual

Trouble-shooting

68
9 Trouble-shooting
9.1

Trouble-shooting instructions

Levelflex M -Trouble Shooting
Instrument does
not respond
Yes
Values on display
invissible
No
Yes
Output current
< 3.6 mA ? (2 wire)
< 2.4 mA ? (4 wire)
HART
Yes
communication
does not
function
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
Check voltage and
Not ok
compare it with the
Connect the
specifications on the
correct voltage
nameplate.
ok
Check the polarity
Not ok
Correct the polarity
of the voltage.
ok
Check power connection
Not ok
Connect plug
to electronic board
ok
F O ok
+
Contrast:
Not ok
Not ok
Check plug contact Connect the plug
of the display. correctly
ok
Yes
The display is possibly defective.
Output current between
Contact Endress+Hauser Service
3.6 ...22mA ?
No
Not ok
Correct the
Check cabling
cabling
ok
Possibly defective electronics
Contact Endress+Hauser Service
Is the communication
resistor installed Not ok
Install the fuse
according to the
(see the OM)
OM?
ok
Is the Commubox Connect the
Not ok
connected according Commubox
to the OM? (see the OM)
ok
Is the switch on the
Not ok
Commubox for
Set the switch
selecting HART
correctly
in the correct position?
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
Levelflex M FMP45 with HART/4...20 mA
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
Yes
Communication ok? Ready
No
Yes
Communication ok? Ready
No
Contact Endress+Hauser Service
Yes
Communication ok? Ready
No
Contact Endress+Hauser
Yes
Measurement ok?
Ready
No
Endress + Hauser
Service
Service
L00-FMP4xxxx-19-00-00-en-010