• Murphy


The EMS Pro Lite is a customizable pump controller designed specifically for dewatering and irrigation applications.

This versatile unit supports both mechanical and J1939 electronic engines, thus eliminating the need to stock multiple controllers. A step ahead, the EMS Pro Lite is Tier 4 and Stage IIIB/IV ready. This includes displaying the current urea level % on the LCD. A microprocessor-based controller, the EMS Pro Lite’s operating parameters are field adjustable without the need for a computer. However, the EMS Pro Lite can be modified for use with a remote modem or in a SCADA system with MODBUS* RTU protocols on either an RS232 or RS485 port. The robust EMS Pro Lite is engineered for 12 VDC systems (8 VDC minimum to 14.4 VDC maximum) and a wide operating temperature.

Specifications Downloads How to Order
Specifications Drawer: 
  • Operating Voltage: 8 VDC Minimum to 14.4 VDC Maximum 
  • Operating Temperature: -40° to 80°C (-40° to 176°F)
  • Relative Humidity: 95%RH @ 60°F (140°C) 
  • Storage Temperature: -40° to 80°C (-40° to 176°F)
  • Enclosure: Polycarbonate NEMA 4 (UL/cUL listed) 
  • Environmental Sealing: IP65
  • Shipping Weight: 7 lb. (3.2 hg)
  • Shipping Dimensions: 12” x 12” x 10” (304.8 x 304.8 x 254 mm)
  • Analog Inputs: 6 Analog Inputs designed via program; sender/ground digital 4-20mA, 0-5 VDC.
  • Digital Inputs: 4 Digital Inputs High/Low (Both Battery+ and ground are detected as active inputs. An inactive input floats at approximately 1/2 B.
  • Frequency: 1 optically isolated input for speed reference, magnetic pick-up, (2VAC-50VAC RMS, 30-10kHz)
  • Fuel Sender Input: 33 Ohm full, 240 Ohm empty
  • Analog Output: 4-20mA or .4 to 4.2VDC (used for .4 – 4.2V throttling)
  • Digital Outputs: 6 Digital Outputs; 3 FET B+ (rated at 1A), 3 Open Collector sink-to-ground 100 mA (one of these is used to pilot a relay).
  • Communications: RS485, RS232, CAN J1939, CAN 2.0B ports

Additional product documentation can be found on our product support website or by clicking the Help Center button above.

Primary Method - Table: 
Part NumberModel/Description
40700305EMS Pro Lite
4000052121-pin and 9-pin, 10 ft (3.048m) Whip Harness Kit for Mechanical Engines
400005229-pin, 10 ft (3.048m) Whip Harness for I/O
400005239-pin Connector Kit for I/O with terminals
4000052421-pin and 9-pin Connector Kit with terminals
4000052621-pin, 10 ft (3.048m) Whip Harness for Mechanical Engines
4000053121-pin Connector Kit with terminals for engine connector