Log impeller Airmar DT800. How many wires inside the cable outer?

[NPMR]

I am debating replacing the log impeller on our Raymarine set up, as it incessantly stops working.

But, as ever with a boat, the cable disappears into trunking a good long way away from the central hub, so wondering if I can just cut and join the cable at a more convenient but 'dry' place somewhere.

Recommended that you use a special splashproof, and pricey, connector block (chocolate block in a box with a lid!) that seems to have many connector points.

How many will be used cutting into the impeller wire? Anyone know?

 

[MikeCC]

Check the Airmar website - has wiring for pretty well every transducer they've produced, including OEM ones. However if it's a DT800, that's just depth and temp. Need an 'S' in there somewhere!

 

[PaulRainbow]

Would help to know the plotter model, is it STNG/N2K ? Is there a network in place ?If so, perhaps a N2K DST800 would be the answer ?

 

[NPMR]

Check the Airmar website - has wiring for pretty well every transducer they've produced, including OEM ones. However if it's a DT800, that's just depth and temp. Need an 'S' in there somewhere!

I looked at the website but saw no other comment than just wire it up! We have a log so OK, we have a DST800.

 

[LittleSister]

I looked at the website but saw no other comment than just wire it up!

It is hard to find wiring diagrams on the Airmar website. They are in a separate section to the product info (heaven knows why ), and if you don't specify exactly the right product number in the wiring diagram section it just flips you back to the products page.

I couldn't find a diagram for you there with the number DST800 (maybe its missing, or there's a suffix or prefix used on the Airmar site), but if you do a Google image search for 'airmar DST800 wiring diagram' you should find it. (Note that there are various revisions of the diagram with different connectors, and the images I inspected said 'Airmar' but didn't specify on the image which model number it showed. )

 

[Pye_End]

Where does the DST800 plug into?

Whatever the plug has will indicate how many wires there are.

There are more than one version of the DST800, but knowing what it plugs into should indicate which one you have.

 

[Daverw]

Would let you know max cores but some pins may not be used

 

[dolabriform]

Would help to know the plotter model, is it STNG/N2K ? Is there a network in place ?If so, perhaps a N2K DST800 would be the answer ?

As Paul said you need to know which type of DST 800 it is.

Which plotter does it connect to? Or does it go direct to a display?

Can you post a picture of the connectors?

 

[Old Bumbulum]

I've just replaced my instrumentation and simewhere in that process came across admonitions that transducer cables were never to be cut or joined. Which item that referred to I can't recall but a phonecall to Airmar might be worthwhile to check.

 

[PaulRainbow]

It's an impossible question to answer without knowing what version of DST 800 it is. One version is N2K and will have 5 wires, the analogue version will likely have 8 wires, but only use 7.

If the transducer is a new piece of equipment, then it makes sense to know the plotter model and existence of a network. If there is a STNG network the N2K version makes sense as it will connect to the network with a short adapter cable. If the is no network, but an iTC-5 is present, the analogue version could be used. If no network and no iTC-5 then it again makes sense to go for the N2K version and make a basic network, that would cost less than an iTC-5 and would allow for future updates of N2K equipment.

More information would help to give more precise help.