Engine gauges

Hadenough

Hadenough

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I have engine revs, oil pressure, coolant temperature and gearbox oil pressure gauges in the wheelhouse and want to repeat them at the outside helm. The gauges are all VDO and electronic. Is it a case of just piggybacking off the gauge, or sender or (as I suspect) is it more complicated than that?
 
Hadenough said:
I have engine revs, oil pressure, coolant temperature and gearbox oil pressure gauges in the wheelhouse and want to repeat them at the outside helm. The gauges are all VDO and electronic. Is it a case of just piggybacking off the gauge, or sender or (as I suspect) is it more complicated than that?
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Wow - I didn't even know that gearboxes had a pressure :-)
 
Thanks. However, drifting my own thread I've just had a lightbulb moment. I have a SH CP300 plotter at the outside helm. This has a video input so I'm wondering if I could rig a bike helmet type camera to view the instruments and wire it through to the plotter. I can easily place a camera either 250mm or 950mm from the gauges but wonder about field of vision etc. I'll investigate further!
 
If by "electronic" you mean the gauges are resistive they are simply reading the varying resistance of the sender so piggybacking is possible, you may get a slightly different reading but once you have established the datum that would not be an issue and probably no more difference than just renewing a gauge. I have done this on fly bridges with much longer cable extensions than you will probably need.
 
I'm pretty sure the CP300 (or any standard horizon plotter) doesn't support N2K. Which is a shame because I'm a big fan of SH/Yaesu
 
Hadenough said:
I have engine revs, oil pressure, coolant temperature and gearbox oil pressure gauges in the wheelhouse and want to repeat them at the outside helm. The gauges are all VDO and electronic. Is it a case of just piggybacking off the gauge, or sender or (as I suspect) is it more complicated than that?
Click to expand...

Noland is real nice kit and not expensive.

For VDO Oceanline gauges you require different VDO sensors for second sensor operation:

Single station temp 99 C - 39.7O Ohms. Dual station 23 Ohms
Single station pres 150 psi - 187 Ohms. Dual station 93 Ohms.
 
Latestarter1 said:
Noland is real nice kit and not expensive.

For VDO Oceanline gauges you require different VDO sensors for second sensor operation:

Single station temp 99 C - 39.7O Ohms. Dual station 23 Ohms
Single station pres 150 psi - 187 Ohms. Dual station 93 Ohms.
Click to expand...
Note the Noland just 'listens' to the data stream to the conventional gauge, it doesn't place any load on the sender, so doesn't upset the original gauge function.
 
superheat6k said:
Note the Noland just 'listens' to the data stream to the conventional gauge, it doesn't place any load on the sender, so doesn't upset the original gauge function.
Click to expand...

Totally aware of functionality of CAN/NMEA 2000 as we are working on our own lower cost unit using proprietary hardware. NMEA protocols cost $$ purchase, however can be 'found' on the internet but it is slow going. If you have protocols and willing to pass them on please PM me.

Impedance difference between VDO Oceanline single and dual station sensors posted in answer to OP's question.
 
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