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Maintenance
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)
Normal operation
Event of fault
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.
20
Power supply
Motor
On
Shaft turns
On
Shaft does not turn,
rotating paddle is
covered
On
Shaft does not turn,
rotating paddle is not
covered
Off
Output signal of
Internal light
"full" sensor
-
On
Full
On
Full
Flashes
Full
Off
Soliswitch FTE20
Endress+Hauser
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