Trouble-Shooting - Endress+Hauser Nivotester FTL 375 N 2 Series Manual

e Trouble-shooting
36
Fault Reason
Does not switch No power
(green LED does not light up)
Electronic defect
Contacts welded together
(after short-circuit)
Measuring transmitter
defective
Switches Incorrect setting of DIP switch
incorrectly for limit signal
Permanent Interrupt or short-circuit line to
alarm signal measuring transmitter
Measuring transmitter
electronics defective
Remedy
Check power
Replace FTL 375 N
Replace FTL 375 N;
connect a fuse into contactor
circuit
Replace measuring transmitter
Set DIP switch to correct
setting on pcb (page 14...17)
Check line
Replace measuring transmitter
electronics
Endress+Hauser