450: Water Tank transmitter

[R.A.Y.]

Hello CF,

After fixing fixing a recent electrical issue, I am now looking to fix all the aftermath.
My question: Does anyone know the location of of the Water tank level sending unit (transmitter)?
My water tank levels no longer indicate correctly (both port and stbd). I have concluded that the actual sensors seem to work correctly so looking for the next item in common. The back story: I recently had a MPPT controller go bad and instead of stopping voltage it allowed full voltage to pass to the DC system. Basically everything DC powered that was "on" during this time has burnt up. After replacing the MPPT and many of the other "burnt" components the last item to fix is the water tank level indicators.


Thanks for the help,
R.A.Y.

[Capt Clark]

R.A.Y.,

It depends on the system used. Many transmitters are mounted in the tank and use a float to indicate level. Other systems use strips attached to the side of the tank to indicate levels. Check the top of the tank for a flange with 2 wires attached or look for thin strips attached to the side of the tank. The latter method with the strips need to be programmed when first installed or when the system looses power.

Capt Clark

[R.A.Y.]

Thanks Capt Clark,
You are correct. I have sensors that are mounted in the tank. To be more specific what I am looking for is the location of the "device" (I believe it is a transmitter of some kind) that converts the analog signal from the individual sensors to a digital signal for the indicator.

My current issue is that when I had my electrical issue, what ever the qty level was at that time seems to be the new full indication. Basically with both port & stbd tanks full I am indicating port @ 1/4 and stbd @ 1/2. They indications remain at these levels until the tanks respectively hit those levels and then decrease from there. Currently they do not indicate above those levels regardless.

Any ideas are greatly appreciated.

R.A.Y.

[geekoman]

On an original Lagoon 450 the sensors are wired to the VDO panel, which interprets the signal and provides a level indication. The VDO display might need to be reset or replaced to indicate and accurate reading. There is no "sender" between the VDO and the sensor - just wire.

Disconnect and reconnect the power from the VDO to reset it.

I placed the VDO manual in the Files section.

[R.A.Y.]

Interesting and thank you I will try the reset....

[R.A.Y.]

Geekoman,

I found the VDO link in the files section but I can't download any way you can send me directly?

Thanks RAY (svray450@gmail.com)