Diesel engine pump control panelSince 2001, Hunan Leading Science & Technology Development Co., Ltd is the professional manufacturer of intelligent pump control system applied for monitoring and protecting of pumps in home and industry use.
Till now, Leading Science & Technology we have passed CE, ISO9001: 2008 certificate.
Main features1. Built In function switch;
2. Applied for water supply by liquid level control through float switch;
3. Applied for water supply by pressure control through pressure switch and pressure tank;
4. Applied for drainage by liquid level control through float switch;
5. Automatic stops the pump in the case of water shortage, protecting it from dry running
Without installing float switch in the well;
6. Auto / Manual switch;
7. Dynamic LCD displaying pump running state;
8. Protect the pump against many faults;
9. Push Button Calibration;
10. Starts and stops the pump in accordance with the different liquid level or pressure setting;
11. Reserved space for installing internal start capacitor of pump motor.
Protection function-Dry run
-Over load
-Transient surge
-Under voltage
-Over voltage
-Pump stalled
-Short circuit
-Open phase
ApplicationsModel S521 is useful in all cases we need to control and protect single pump managing its turn-on and turn off by different electric installations.
Typical usage scenarios include:
-Houses
-Flats
-Holidays houses
-Farms
-Water supply from wells
-Irrigations of greenhouses, gardens, agriculture
-Rain water reuse
-Industrial plants
-Waste water tank / Sewage sink
Advantages1. Water pump network remote monitor;
2. Water pump GSM message remote monitor;
3. Central group control network systems;
4. Intelligent digital water pump controller with sensor free;
5. Computer chip of intelligent digital water pump control;
6. Water pump intelligent one button fast parameter calibration;
7. Water control anti-corrosion, enviromment-friendly probe;
8. Water pump shaft anti-rust function;
9. Liquid level no sensor application;
10. Win credit grade-AAA enterprise certification;
11. Win Hunan good quality and be reliable enterprise;
12. The appointed product of Hunan flood control and drought relief command office.
Main technical characteristic |
Control characteristic | double liquidlevel control |
pressure control |
Control method | Manual/Auto |
Liquid levelcontrol characteristic | float switch |
Pressure control characteristic | pressures witch(n/c) & pressure tank |
Main technical data |
Rated output power | 0.75KW-4KW (1HP-5.5HP) 5.5KW-7.5KW (7.5HP-10HP) |
Rated input voltage | AC380V/50HZ Three Phase |
Trip response time of overload | 5sec-5min |
Trip response time of short circuit | <0.1sec |
Trip response time of under/over voltage | <5sec |
Trip response time of dry run | 6sec |
Recovery time of over load | 30min |
Recovery time of under/over voltage | 5min |
Recovery time of dry run | 30min |
Trip voltage of over voltage | 253V |
Trip voltage of under voltage | 175V |
Protectionfunction | Dry run Over load Transient surge Under voltage Over voltage Pump stalled Short circuit |
Main installation data |
Working temperature | -25ºC--+55ºC |
Working humidity | 20%-90%RH, no drips concreted |
Degree of protection | IP22 |
Installposition | Vertical |
Unitdimensions(LxWxH) | 17×15.5×8.5cm |
Unitweight(net) | 905g |