Re: Fresh water tank

Post by Bertha Contact Bertha » Subscribing Member » Mon Jun 10, 2019 8:07 am
Joined: Mon Feb 11, 2019 11:40 pm
Posts: 297
Picture of the front and better one of the back. Image

Image
:DD:

Re: Fresh water tank

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Post by Phil Bradshaw » Club admin » Mon Jun 10, 2019 12:43 pm
Joined: Sun Sep 02, 2012 7:15 pm
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Image

Resistor R1 with zener diode ZD acts as a voltage regulator supplying resistor R2. (R1 limits avalanche current through the zener.)

Resistor R2 is to limit the current through ammeter M according to the meter range (milliAmp usually) and minimum resistance between the legs of probe P (tank full).
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  • What is real is not the appearance but the idea, the essence of things. Constantin Brâncuși

Re: Fresh water tank

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Post by Packern Contact Packern » Subscribing Member » Mon Jun 10, 2019 2:34 pm
Joined: Fri Sep 11, 2015 8:24 pm
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You could also change the chock block as the rust wont help with good connections.
Nigel Packer

Re: Fresh water tank

Post by Bertha Contact Bertha » Subscribing Member » Mon Jun 10, 2019 3:47 pm
Joined: Mon Feb 11, 2019 11:40 pm
Posts: 297
Cheers phil.. So I take the 2 wires from the probe (love that word) go into W3 and the other one? Either way round or is it a suck it and see!
:DD:

Re: Fresh water tank

Post by Bertha Contact Bertha » Subscribing Member » Mon Jun 10, 2019 3:47 pm
Joined: Mon Feb 11, 2019 11:40 pm
Posts: 297
Packern wrote:
Mon Jun 10, 2019 2:34 pm
You could also change the chock block as the rust wont help with good connections.
That'll happen fella.
:DD:

Re: Fresh water tank

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Post by Phil Bradshaw » Club admin » Mon Jun 10, 2019 5:58 pm
Joined: Sun Sep 02, 2012 7:15 pm
Posts: 4758
Bertha wrote:
Mon Jun 10, 2019 3:47 pm
Cheers phil.. So I take the 2 wires from the probe (love that word) go into W3 and the other one? Either way round or is it a suck it and see!
Only one wire from the probe needs to go to the W3 connection.

The other probe wire can be grounded to W2 but anywhere convenient on the body metalwork will do.

Probe should work either way around: all is does is act as a resistance according to depth of water between its legs.
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  • What is real is not the appearance but the idea, the essence of things. Constantin Brâncuși

Re: Fresh water tank

Post by Bertha Contact Bertha » Subscribing Member » Mon Jun 10, 2019 8:32 pm
Joined: Mon Feb 11, 2019 11:40 pm
Posts: 297
Mate you are brilliant.
:DD:

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