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| Low water Pressure Alarm Demo |
| Author |
Message |
    
Fastjeff
Senior Member
Username: fastjeff
Post Number: 4145
Registered: 09-2003
| | Posted on Saturday, February 23, 2008 - 07:35 am: | 
|
Defveloped an alarm system to beep if water is cut off to the motors for any reason. THis is on a twin engineed inboard boat, but it applies to any raw water cooled boat engines (that will destroy themselves in less than 30 seconds on plane if the water is cut off. This I learned from painful experience!)
http://s23.photobucket.com/albums/b393/Fastjeff/?action=view¤t=LWPAlarm-2. flv
Jeff
PS: I aplogize for the excessive length of the video. This version got uploaded instead of the editied version by mistake. |
Todd Moore
Member
Username: concritter
Post Number: 12
Registered: 12-2007
| | Posted on Saturday, February 23, 2008 - 08:15 pm: |
|
Hi Jeff...This is Todd from Ephrata.Ya know my brother and I thought about this a few times and never got to putting it together.My thought was to make our own set-up besides the original.My idea was to put another sensor that senses pressure between the circulating pump and intake.If it senses a lower pressure...the lights and alrm go off.Is this somewhat on the line you have done?
Well its time to get the list started for this year and am heading to the boat in the morning actually.Have been in Cancun the past 3 weeks and want to top off the batteries,along with just seeing a lot of marina friends I boat with.We are a pretty tight group.Some (4 couples)are actually over your way on the Bohemia.Looking forward to meeting up with you on the water. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 4152
Registered: 09-2003
| | Posted on Saturday, February 23, 2008 - 10:12 pm: |
|
..."Looking forward to meeting up with you on the water."
Me too! The circulating pump has a fitting that was both convenient and gave a higher pressure reading than anywhere else. So I used it. The circuit is simple: the adjustable switch closes at less than 1 psig, triggering the beepers. Both switch and beepers were eBay items--cheap.
Jeff |
Todd Moore
Member
Username: concritter
Post Number: 14
Registered: 12-2007
| | Posted on Sunday, February 24, 2008 - 01:51 am: |
|
WOW were we ever thinking alike on this one.But you are the one that did it.My brother and I as you know raced off-road trucks for over 20 years and one track is within 10 miles of your house.In all that time we always had lights and alarms as we saw others losing motors often.In the boating the engines are still very expensive and as you said...30 seconds is all it takes.I am glued to my gauges as a captain of any vessel and in this sport, I am still helping others that operate a boat by only looking thru the windshield.See ya soon........todd |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 4153
Registered: 09-2003
| | Posted on Sunday, February 24, 2008 - 05:29 am: |
|
Deal! Remember that, even though your eye is on the temp gage, the gage itself will read low when water is not present. Steam doesn't affect it like water does.
Jeff |
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