6.3 Error reporting of the control system
The duration of the valve opening to fill the system is monitored via the time control relay (t = 30s). If the
maximum nominal level is not reached within a specified period of time, the magnet valve will be closed
and an acoustic signal is emitted by the horn. The reset of the malfunction is possible as follows:
●
Manual filling of the dust collecting tank till the maximum nominal level is reached.
●
Restarting the system.
An acoustic trouble signal by the horn can also be triggered when there is too much water in the spark
separator. In this case the filling level sensor has triggered. The reset of the malfunction can be carried
out as follows:
●
Empty the water to a normal water level. The way of proceeding is described in chapter
“Cleaning of the dust collecting tank”.
●
Restarting of the system.
6.4 Set the sensitivity of the level monitoring relay
The sensitivity of the level monitoring relay is preset by TEKA. In case of exchange or inappropriate
switching behaviour of the level monitoring relay the sensitivity must be reset.
●
For the commissioning of the level monitoring relay the function FS (pos. 1) is chosen and the
sensitivity (pos. 2) is set on the lowest value of 5 kΩ. During that all probes must be immersed
in the liquid. The potentiometer for the sensitivity is turned in the direction of 150 kΩ till the
monitoring relay is safely switched off and the red LED blinks slowly. Finally it should be
checked if the level monitoring relay works as requested.
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