The innovative water-level control utilizing pressure sensors allows cost-effective detection of preset water levels and continuous level measurement without the use of failure-prone float-switches. Beyond that, the Sequetrol control unit is especially suited for more sophisticated control algorithms particularly where incoming/outgoing water flow or its rate of change is employed as a control variable.
The optional analogue input can be utilized for a further optimization of the wastewater treatment process. Properties, such as the turbidity of the treated water can be analyzed. Up to four external digital signals can be monitored and processed within the control algorithm. In addition the Sequetrol control can be equipped with a RS-232 or RS-485 bus interface, so other "intelligent" peripheral devices or control panels can be connected to the system. Up to 8 relay outputs for 230VAC offer a comfortable connection of solenoid valves, diaphragm compressors or other loads. The optional GSM module can be used to send alarm and status text messages or to receive control commands. All electrical connections are made using reverse polarity protected plugs with IP54 rating. Of course the type of connectors can be changed according to customer requirements.
The extent of the system functionality and the design of the front panel of the Sequetrol control unit can be tailored to match your individual needs. We can offer you zero to six push buttons; anything from three LEDs to a graphical LCD display; from a simple sequence control up to an event-driven control system with water-level control utilizing pressure sensors; analog/digital inputs, relay outputs, GSM module and a handy memory stick for programming the control and the readout of the protocols - we are flexible! The Sequetrol is also available with features, such as, acoustic signaling of predefined conditions, a sequence program permanently stored in the EEPROM and additional EEPROM memory for event-logging. To ensure continuous signaling and operation of the GSM module during power outage a set of NiMH rechargeable batteries can be supplied.