Maintenance Soliswitch FTE20
20 Endress+Hauser
8.1 Point level switch with rotation monitoring
The table below shows the output signal of the point level switch with rotation monitoring for
overfill protection.
Rotation monitoring of the point level switch (optional)
Power supply Motor Output signal of
"full" sensor
Internal light
Normal operation
On Shaft turns - On
On Shaft does not turn,
rotating paddle is
covered
Full On
Event of fault
On Shaft does not turn,
rotating paddle is not
covered
Full Flashes
Off Full Off
If the rotation monitoring system detects an error, a "full" alarm is signaled and the light in the
electronics housing flashes.
Function testing of the point level switch
Operate the internal switch
1. Insert a screwdriver or another suitable tool in the opening provided in the electronics
cover and move it in the direction indicated, see testing the internal switch
→ 14, 18.
The switch is operated and the empty/full alarm is reset.
2. Wait for the error detection time to elapse (approx. 25 s).
If no rotational movement is detected during the error detection time, the device
signals the full or empty alarm again and the light in the electronics housing
flashes.
9 Maintenance
No special maintenance work is required for the device.
9.1 Cleaning
A clean, dry cloth can be used to clean the device.
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