Three phase water pump control panel
Intelligent Pump Controller model M931 is an easy to use, programmable controlling & protection device for direct start, three phase deep well submersible pump, centrifugal pump, pipeline pump etc with
output power from 0.75KW to 7.5KW (1HP-10HP)
About us
Since 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;
Leading Science & Technology has established stable relations with many pump producers and distributors from China and overseas.
Till now, Leading Science & Technology we have passed CE, ISO9001: 2008 certificate.
Main features
1.Built In function switch:
Applied for water supply by liquid level control through float switch or liquid probe;
Applied for Water supply by pressure control through pressure switch and pressure tank; Applied for 4.Drainage by liquid level control through float switch or liquid probe;
2.Automatic stops the pump in the case of water shortage, protecting it from dry running
without installing float switch or liquid probe in the well;
3.Auto / Manual switch;
4.Dynamic LCD displaying pump running state;
5.Protect the pump against many faults;
6.Push Button Calibration;
7.Pump Accumulative Running Time Displaying;
8.Pump Last Five Fault Record Displaying;
9.RS485 Communication;
10.Starts and stops the pump in accordance with the different liquid level or pressure setting.
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
Our advantages
1.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 technica lcharacteristic |
| Control characteristic |
double liquid level control |
| pressure control |
| Control method |
Manual/Auto |
| Liquid level control characteristic |
pulse electrode probe&float switch |
| Pressure control characteristic |
pressure switch (n/c) & pressuretank |
Main technical data |
| Rated output power |
0.75-4KW(1HP-5.5HP)
5.5-7.5KW(7.5HP-10HP) |
| Rated input voltage |
AC380V/50HZ ThreePhase |
| Trip response time of overload |
5sec-5min |
| Trip response time of open phase |
<2sec |
| Trip response time of short circuit |
<0.1sec |
| Trip response time of under/overvoltage |
<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 |
437V |
| Trip voltage of under voltage |
301V |
| Liquid level transfer distance |
≤1000m |
| Protectionfunction |
Dry run
Over load
Transient surge
Under voltage
Over voltage
Open phase
Pump stalled
Short circuit |
Main installation data |
| Working temperature |
-25ºC--+55ºC |
| Working humidity |
20%-90%RH,no drip sconcreted |
| Degree of protection |
IP22 |
| Install position |
Vertical |
| Unit dimensions(LxWxH) |
16x8.2x22.8cm |
| Unit weight(net) |
1.3kg |
RS485 technicaldata |
| Physics Interface |
RS485 Bus Interface:asynchronism semiduplex |
Baudrate |
1200bps\2400bps\4800bps\9600bps
Default:9600bps |
| Protocol type |
MODBUS Protocol (RTU) |
Audited Supplier 
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