Duwan NS-4 Submersible Pump Comprehensive ProtectorInstallation Details

Dimensions: 160×80×170mm

Hole Size: 152×76mm (tolerance ±0.7)

Technical Specifications

Power Supply: 220V/50Hz

Rated breaking current of fault output contact: 5A/AC 220V

Dehumidifier Output Contact Rated Breaking Current: 7A/AC220V

Ambient Temperature: -10℃ to +55℃

Relative humidity not exceeding 90%

Areas with no significant vibration or shock

Duwan Environmental NS-4 AC220V 5A Submersible Pump Comprehensive Protector

Submersible pump monitoringThe controller is mounted on a panel and operates normally under the following conditions:   

     Ambient temperature surrounding does not exceed+40Degree,24Average temperature within the hour does not exceed+35DegreePlease provide the Chinese content you would like translated into American English.Low environmental temperature must not be below-10Degree. 

      No excessive dust, acids, salts, corrosive gases, or relative humidity abovePlease provide the Chinese content to be translated.High temperature+40Within time limit50%At lower temperatures, higher relative humidity is permissible.  
   For instance:20Below degree, the humidity is90%Be cautious of condensation that may occur accidentally due to temperature changes. 

    Altitude of installation location does not exceed1000Metric Tons 

     Vertical installation tilt must not exceed5Degree.

    During the operation of the submersible pump,In cases where the pump oil chamber experiences a leak due to reasons such as mechanical seal wear.,Controller through the pump onP31# P32#Signal line for monitoring, WhenP31#WithP32#Intermittently detected water leakage exceeding the limit,Relay activated due to oil chamber leakage in the controller, oil chamber leakageLEDLight indicator (red) flashing. Oil chamber leakage relay.*High capacity2A 250VACAction state closed.

   2.2 Water pump motor winding over-temperature protection

    During the operation of the submersible pump,When the pump motor winding overheats due to overload or other reasons (with the action temperature value of)135Degree,Controller through the pump onP11#P12#Or21#22#Signal line for monitoring,WhenP11#Please provide the Chinese content to be translated into American English.P12#Intermittently monitored temperatures exceeding135Degree Time,Over-temperature protection relay activates due to excessive heat in the windingLEDLight (red) blinking. Winding overheating relay.Please provide the Chinese content to be translated.High capacity2A 250VACAction status closed.

   2.3 Water Pump Motor Cavity Water Immersion Protection

   When the submersible pump is worn due to seal wear and other reasons,Pump motor cavity experiencing water immersion fault,Controller through the pumpP51# P32#Signal line for monitoring,WhenP51#WithP32#Intermittently, water leakage detected exceeding the limit,Control unit motor fault, relay activated due to motor immersionLEDLED (Red) blinking. Fault relay*High capacity1A 250VACTwo separate outputs (normally open, normally closed). 

2.4 Water pump junction box cavity waterproofing protection
    When the submersible pump due to seal wear and other reasons,Pump junction box cavity experiencing water immersion fault,Controller through the pump onP41# P32#Signal line for monitoring,WhenP41#WithP32#Intermittently monitored water leakage exceeding levels,Control panel wiring box chamber submersion protection relay activation, wire box submersionLEDBlinking indicator (red). Line box submersible relay*High capacity2A 250VACAction state closed.

2.5 Water Pump Bearing Overheat Protection
    When a submersible pump experiences overheating failure in the pump bearing due to overloading or other reasons (with the operating temperature value being)105Degree,Controller through the pump onP61# P32#Signal line for monitoring,WhenP61#WithP32#Intermittently detected temperature greater than105Degree timing,Control module motor fault protective relay activated, bearing overheatingLEDBlinking indicator (red). Fault relay*High capacity1A 250VACTwo sets of action outputs (normally open, normally closed).

Duwan Environmental NS-4 Comprehensive Protection and Monitoring Controller Features
Input Voltage: AC220V, 50Hz, rated power consumption less than 10W.
Ambient Temperature: -20℃～75℃。
Ambient Humidity: Less than 90% (no dew condensation).
Power Supply: Sensor powered by low-voltage DC 12V.
　　　　　　
Signal Input: Input Hysteresis Control: ±2%
Signal Input: DC12V switch signal input or resistance, current signal input.
Signal Response Speed: 10mS.
Signal Output: Output, Contact Rating: 5A/250VAC or 5A/30VDC.
NS-4 Comprehensive Monitoring Controller Model
Signal Input: Winding Sensing: Winding Overheat Protection
　　　　　　 Leakage Sensors: Oil chamber water immersion protection.
　　　　　　Sensor: Wire box water immersion protection.
　　　　　　 Overload Signal: Overload Protection
　　　　　Cavity Sensing: Motor Water Immersion Protection
　　　　　　 Pump Operation Signal: Pump Operation Monitoring
　　　　　　 Humidity Sensor: Dehumidifying heating, motor insulation prevention through heating and dehumidifying.

Jiangsu Du'an Environmental Protection Submersible Pump Comprehensive Monitoring Controller with Color Touch Screen LCD displays total supply water temperature, return water temperature, exhaust gas temperature, and supply water pressure, etc., dynamically simulating the system's operating status; 3. Controls the total supply water temperature, ensuring the boiler unit operates at an economic point, maximizing fuel consumption savings; 4. PID regulation adjusts the operating frequencies of each boiler, ensuring that the operating times of each boiler unit are basically the same to guarantee the service life of the boiler unit; 5. Supports both networked and independent operation, enhancing system stability and operability; 6. Supports multiple communication methods: TCP/IP network, RS232, RS485, wireless network, telephone line communication, and power line carrier communication, etc.