Murphy MEC301-2-TR MeCAN Mechanical Engine to J1939 CAN Interface with Terminating Resistor - E2501200B

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0.51 LBS
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The MeCAN is a compact, encapsulated interface module that translates resistive sender, fault switch and speed signals into SAE J1939 CAN bus data. MeCAN allows quick and simple integration of mechanical engines into modern CAN bus systems. Applications include the retrofit of older engine fleets with modern digital instruments, controls and telemetry, engine hour tracking and the development of standard control panels for mechanical engines. MeCAN has three sensor inputs and one output. Two inputs are for oil pressure and coolant temperature sensing, either by fault switches or resistive senders. The third input measures engine speed using a magnetic pickup or charge alternator signal. Input signals are translated into SAE J1939 CAN bus messages with assigned PGN address, data scaling and transmission rate. The output can drive an alarm lamp or buzzer or actuate a shut-down relay if the pressure, temperature or speed inputs deviate outside preset fault limits. A fourth input is connected to a speed calibration potentiometer during set-up mode only. DIP switches allow selection of normal/set up mode and two speed input ranges. An LED gives indication of operating mode and CAN bus activity. MeCAN is compact and light enough for inclusion in engine wiring harnesses but can also be surface mounted. The case is fully sealed in epoxy resin for high impact and environmental resistance. Two standard versions allow use with either fault switches or Murphy ES series resistive senders. Custom solutions are also available for non standard, volume OEM requirements.


  • Murphy Part No.: E2501200B
  • Note: Use with pressure and temperature switches (output closes to ground on fault)
  • Operating voltage: 7 to 35 VDC
  • Current consumption: 25 mA (typ.)
  • Maximum operating range: -2 to +35 VDC max., Oil pressure, coolant temperature (model MEC301-1): for Murphy ES(2)P and ES(2)T series resistive senders, Oil pressure, coolant temperature (model MEC301-2): for fault switch, closing to negative DC on fault
  • Speed (magnetic pickup): Opto-isolated, 3 – 30 Vrms,
  • adjustable 10-180 pulses per rev
  • Speed calibration: 0-5 kOhm potentiometer (setup only)
  • Outputs (all ratings non-reactive) Shutdown: Negative low-side or ground switch, 250 mA max.
  • CAN bus: SAE J1939 protocol with120 Ohm terminating resistor
  • Case material: High impact ABS, epoxy filled
  • Weight: Approx 60 g / 0.13 lb
  • Operating temperature: -40°F to 185°F (-40°C to 85°C)
  • Environmental sealing: IP65 case (with DIP switch protective film intact),
  • exposed lead ends
  • Electromagnetic compatibility: 2004/108/EC
  • Electrical: J1113-11 pulses 1c, 2a, 3a/b and 5a/ EN 61000-4-2 ESD/ EN 61000-4-3 Radiated disturbance/ EN 61000-4-4 Fast transients/ EN 61000-4-5 High energy transients/ EN 61000-4-6 Conducted RF disturbance/ CISPR 16-1-2, 4.3 conducted emissions/ CISPR 16-2-3 Radiated emissions

Product Condition: NEW

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