Sterlco SVL Series Compressed Air Loaders - Manual (Page 29)

SVL-A, SVL-B, SVL-C, & SVL-D Self-Contained Material Loaders - Venturi Style 29 of 49
Set-up / Operation:
Check the safe functioning of the unit. To do so, bring about a sensor response by taking
suitable measures.
Display by LEDs:
The red LED becomes active for a short time during the change between "medium not present"
and "medium present" (flashes at 1Hz) if the medium is close to reaching the switching
threshold. This can occur in particular if the level changes very slowly and is no error message
meaning a fault in the unit.
The operation of the level switch is maintenance-free. For a correct function ensure the sensing
face and the open space should be kept free of deposits and foreign bodies, particularly for
mounting with the sensing face showing upwards.
LED green Flashes slowly (1Hz): adjustment mode empty
adjustment
LED yellow OFF: switching output disabled
ON: switching output enabled
LED red Flashes quickly (8Hz): adjustment error, internal fault
Flashes slowly (1Hz): close to reaching the switching