| Task: | Program | 
|---|---|
| Structure: | Closed-Loop | 
| Mathematical Model: | Linear | 
 
   


| Rated Input Voltage: | 240VAC, 50Hz | 
| Rated current : | 0~10A | 
| Maximum current: | 40A | 
| Qty.of Controlled Pump: | One pump | 
| Level Transmission Type: | 
              •4~20mA  Level sensor;
              
              •float switches (4pcs) (backup);
              
              •Pressure switch;                                                                 
              | 
| Enclosure: | 
              •PC Plastic Enclosure,  with clear enclosure cover,
              
              •High strength, UV resistance;
              
              •Lockable with all locks;
              
              •Fitted with non-corrosive hinges and locking latch;
              | 
| Protection grade: | IP65 | 
| Display: | 7" LCD touch screen, 24VDC, support RS485, RJ45 ports, USB port, SD card | 
| PLC: | 24VDC, I/O: 4 digital input/output; 4 analog input/output; RS485, RJ45 ports, TF card | 
| Outer Dimension: | 400 ×300 × 220 mm | 
| Installation: | Wall mounting | 
| Working temperature: | -25ºC-- +55ºC | 
| Working humidity: | 20%--90%RH, no drips concreted | 
| Max.Control Distance: | ≤2000m without strong electric and electromagnetic fields | 
| Control Function: | 
              •Low Level -  Pump stop;
              
              •High Level - Pump start;
              
              •Low Low Level - Pump stop, and dry run protection alarm will be triggered;
              
              •High High Level - Pump start, and high level alarm will be triggered;
              
              •Pressure monitoring - Pump can be turned off when high pressure alarm triggered;
              
              •Pump running time monitoring - when pump running time exceed the maximum time in a period, the system can send the alarm;
              
              •Pump start, stop delay time can be set, solve the problems such as liquid level fluctuation and water hammer;
              
              •Automatic restart after power recovery etc.
              | 
| Protection Function: | 
              •Over-load protection;
              
              •Dry run protection;
              
              •Short circuit protection;
              
              •Over-temperature protection;
              
              •Over-pressure protection;
              
              •Pump leakage protection;
              
              •Over/under-voltage protection;
              
              •Over-flow protection
              | 
| Data log and storage: | 
              •Pump run indication
              
              •Number of high levels
              
              •Number of starts (total)
              
              •Number of power resets
              
              •Number of over current shut-downs
              
              •Number of starts per hour
              
              •Motor running current
              
              •Last motor current
              
              •Peak and average current during last run cycle
              
              •Level settings record;
              
              •Data logging with real-time clock;
              
              •Minimum 30 days data storage before it is over-written.
              | 
| Alarm notification: | 
              •over-load;
              
              •over- temperature;
              
              •dry turn;
              
              •over-voltage;
              
              •over-pressure;
              
              •pump excess runtime across a 24hr period;
              
              •high level;
              
              •4~20mA level transmitter fail;
              
              •float switches fail;
              | 
