2012/01 - Kessel

4. Operation4.4.2 Temporary elevated wastewaterlevel – air pressure sensor andoptical sensor operationalControl unit display – no LEDs litIf the wastewater level inside the chamber exceedsthe Pump 1 on level and the Pump 2 onlevel, the 2 second pump activation delay begins.After the 2 second delay Pump 1 will activate.The orange ‘Level’ LED and the orange‘Pump 1’ LED will light. After a second 2 seconddelay pump 2 will activate. The orange‘Pump 2’ LED will light and the red ‘Alarm’ LEDwill blink. Both pumps are now running simultaneously.30mm over the pump off level Pump2 will stop running. The orange ‘Pump 2’ LEDwill go off. Pump 1 will continue running untilthe Pump off level is reached. The orange‘Pump 1’ LED, the orange ‘Level’ LED and the‘Alarm’ LED will turn off.Whenever the Pump 2 on level is reached thesecond pump will activate after a delay andwill also turn off prior to Pump 1 turning off.4.4.3 Temporary heavily elevatedwastewater level – air pressuresensor and optical sensoroperationalControl unit display – ‘Power’ LED lit forsingle pump models (no LEDs lit for twinpump models).If the wastewater level inside the chamberexceeds the Pump 1 on level, the Pump 2on level and the Alarm level, the 2 secondpump activation delay begins. After the 2second delay Pump 1 will activate. Theorange ‘Level’ LED and the orange ‘Pump1’ LED will light. After a delay of 2 secondsPump 2 will activate. The orange ‘Pump 2’ LEDwill light and the red ‘Alarm’ LED will blink.Both pumps will run simultaneously.After a 2 second pump activation delaythe red ‘Alarm’ LED will light (Alarm levelexceeded). An audible alarm will sound.When the wastewater level falls below theAlarm level the audible alarm will turn offbut the red ‘Alarm’ level will blink. Bothpump will run simultaneously.30mm over the pump off level Pump 2 will stoprunning. The orange ‘Pump 2’ LED will go off.Pump 1 will continue running until thePump off level is reached. The orange‘Pump 1’ LED and the orange ‘Level’ LEDwill turn off. The blinking red ‘Alarm’ LEDshows that Alarm level has been exceeded.4.4.4 Air pressure sensor malfunction –optical sensor operationalControl unit display - ‘Power’ LED lit forsingle pump models / no LEDs lit for twinpump models).If the wastewater level inside the chamberexceeds the ‘Alarm’ level, the 2 secondpump activation delay begins. The red‘Alarm’ LED lights and the audible alarmsounds. Pump 1 activates. The orange‘Pump 1’ LED lights. After the 2 seconddelay Pump 2 will activate. The orange‘Pump 2’ LED will light. Both pumps runsimultaneously. the wastewater level fallsbelow the Alarm level the audible alarmwill turn off but the red ‘Alarm’ level willblink. After 4 seconds Pump 2 will turn off. Theorange ‘Pump 2’ LED turns off. Later Pump 143