12V DC Relay Issues (Diesel Engine)

[ruston]

Is it grounded properly?

 

[Lucien Nunes]

What type of output does it have - contact closure, open collector? Is it designed to operate a relay or just trigger an electronic input of a system controller?

 

[Holden Customs]

It is grounded to a point on the frame of the unit. When it senses the water it closes a circuit with the power feed to send power down the switch wire. I think it is designed to be used in a system controller but the dealer said people have used it to operate a relay.

 

[ruston]

Is the battery ground and the frame ground connected to give the relay a good connection?

 

[Holden Customs]

Is the battery ground and the frame ground connected to give the relay a good connection?

Yes, the battery ground is run to the alternator and both are connected to the frame. All grounds are from that point.

 

[ruston]

Are they long cable runs of adequate size?

 

[ruston]

Are they long cable runs of adequate size?

 

[Holden Customs]

The battery and alternator grounds are the typical battery connection sizes, 4awg or 6awg, the relay and sensor grounds are 12awg, and 20awg respectively as those are the wire sizes of the connectors

 

[Holden Customs]

The battery and alternator grounds are the typical battery connection sizes, 4awg or 6awg, the relay and sensor grounds are 12awg, and 20awg respectively as those are the wire sizes of the connectors

Lengths range from 6 to 8 ft

 

[ruston]

What is the kill switch connected to out of interest. Is it to disable the ignition or the fuel pump .