afriso AFA 11 Manual De Instrucciones página 85

EN
9 Troubleshooting
Any malfunctions that cannot be removed by means of the measures
described in this chapter may only be repaired by the manufacturer.
Problem
Green LED is not on
Red LED flashes and
the audible alarm
sounds even though the
probe is not in liquid
Red LED is off and the
audible alarm does not
sound, even though the
probe is in liquid
Other malfunctions
34
Troubleshooting
AFA 11
Possible reason
No supply voltage
Flat cable not
connected to printed cir-
cuit board
Short circuit in the probe Check the probe or
Line interruption to the
probe
Light reaches the photo-
electric probe
Probe defective
-
Repair
Apply supply voltage
Connect the flat cable to
the printed circuit board
replace it
Check the probe cable
Mount the probe at a dif-
ferent position or protect
the probe against light
Replace the probe
Contact the AFRISO
service hotline