en - Troubleshooting
48
Fault
Reason
Does not switch
No power or power too low
on (LED output
(green LED does not light up)
off)
Emitter defective
Attenuation of the product too
high
Path of rays covered (e.g. PTFE-
diaphragm dirty)
Wrong installation
Does not switch
Receiver defective
off (LED output
Attenuation of the product too
on)
low
Remedy
Check power at the emitter and
receiver
Replace emitter
Adjust the sensitivity at the
receiver
40
È
Clean path of rays
Check installation
15
È
Replace receiver
Adjust the sensitivity at the
receiver
40
È
Endress+Hauser