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New type of boiler level sensor

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New type of boiler level sensor Empty New type of boiler level sensor

Post  jjtjr Tue 24 Sep 2019, 8:51 pm

Sorry for the delay in posting the photos tried to do it from my smart phone but it didn't work too well. I had to post from my laptop.
Built an improved boiler level sensor. Using vertical sensors.
Also replaced all the globe   125 psi valves   with 1000 psi SS ball valves and replaced the boiler ball check valves with 1000 psi  SS mushroom check valves
see photosNew type of boiler level sensor 20190912
New type of boiler level sensor 20190910
New type of boiler level sensor 20190911New type of boiler level sensor 20190913
jjtjr
jjtjr

Number of posts : 227
Age : 75
Location : New Jersey,usa
Registration date : 2009-07-28

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Post  LiveSteam Wed 25 Sep 2019, 1:03 pm

Clever use of spark plugs Cool

LiveSteam

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Location : Hampshire
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Post  jjtjr Wed 25 Sep 2019, 10:46 pm

there is a company that makes something like it but at $ 125.00 each I thought I give it a try.
jjtjr
jjtjr

Number of posts : 227
Age : 75
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New type of boiler level sensor Empty Spark plug level sensor

Post  Paul Stratford Fri 15 Oct 2021, 3:01 pm

I intend to use spark plugs set horizontally in the water gauge manifold screwed into the blanking plugs. What voltage is required to make a circuit in the boiler water to activate a warning light?

Paul Stratford

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New type of boiler level sensor Empty voltage

Post  jjtjr Sat 16 Oct 2021, 11:49 am

The system uses 12v DC.   You have to have a  circuit to drive the LEDS. Water will not pass enough current to lite the LED directly.  Water has about 100k ohms resistance, which is too high of a resistance to pass the current for the LEDS.
jjtjr
jjtjr

Number of posts : 227
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New type of boiler level sensor Empty spark plugs

Post  jjtjr Sat 16 Oct 2021, 12:13 pm

When I first used spark plugs horz. they worked for a while, but in time they started to give false readings. I found a build up of minerals on the tips. You could clean them often to prevent this. At that time I decided to design a improved level monitoring system. It had to fit in the same area. The photos show the new version.
jjtjr
jjtjr

Number of posts : 227
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Registration date : 2009-07-28

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