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Observant M2 engine controller

Description

The M2 is a fully featured engine monitoring and control interface. It communicates

to the C3 via a 4-way connection (Figure 26). For more information refer to the M2

product sheet and user guide.

Electrical connection

• The M2 is a standard Modbus serial communications device and is

supplied with the Observant 4-way device connector

• The standard C3 device cable (DTC) is 6 m in length, this may be

shortened if desired by re-wiring the terminal block end

• If a longer cable run is needed the 10 m device extension cable (DCE) can

be used

• Either RS485 port on the C3 may be used

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Installation notes

• The M2 is typically mounted on a pole beside the engine using the

supplied hose-clamps

• Follow the general cabling guidelines in appendix A5

• The 4-way device connector can be threaded through standard 25 mm

electrical conduit

• Factory-built engine-side wiring looms for selected models of engine are

available

Product codes

• M2: Complete M2 with 4-way device connector tail and mounting bracket

• DTC: 6 m 4-way device cable (required for connection to C3)

• DTE: 10 m 4-way device cable extension

• TCK: Optional throttle control actuator kit

4. Appendix

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DAVIS Electronic Rain Counter Guía de usuario Pagina 55