Check this out.. Look's to be like a useful thing to most of us using Elec. WP's.. I have had mine go out numerous time's.. and the only indication i got was overheating.. ..

http://cgi.ebay.com/ebaymotors/ws/eB...949035369&rd=1

 

Not for no $115. For that I could build my own LED and voltage checker.

 

I had that same setup.. But that will only tell you if your fuse blow's.. IF the pump goes out you have no indication that it went other than overheating.. From what i understand of the product is it monitor's the current draw of the motor and if for some reason the pump stop's working i.e drawing current it'll give off a alarm.. Guess all this navy elec. training has done some good!.

 

If my car starts to overheat, I think I will just pull to the side of the road pop the hood and listen for the pump to turn on or not. Other wise the led is fine for me. Thanks for the info. but I will not be needing one. I will just pocket the $115.

 

Here you go same thing for $10 worth of parts an a little labor and this one has a ground fault indicator as well.

http://www.akmcables.com/mezinst2.jpg

 

Guess you guy's just don't get it.. I HAVE HAD THAT SETUP!!! It DOES NOT! say when the pump fails.. Just tell's ya when the fuse has blown! Which RARELY HAPPEN"S!

 

I talked to some techs at Meziere last year and we talked about warning indicators.
They said they were working on something but didn't know when they would have anything ready.

I would like to see a 3rd wire off of the pump that indicates pump RPM and have logic type circuit that has an RPM range in it to monitor the pump and if the rpm goes out of that range it will trip a circuit for either audible, visual or both alarm system.
that would be the best indicator.

 

Yea i'm assuming this is somthing of that nature as it is monitoring the current load of the motor.. and if that fall's off through a set range.. the audible alarm and a led will light.. seem's like a good idea.. i have had 3 mez. pump's go out and also a fuse has blown on me as well "ONCE".. MIght be a worthy investment.. its only a 100 bux or so.. ..

 

The best way to do this i've found, after overheating once without the light going off, is to wire in your warning light on the pump side of the connection. That way even if the connector comes loose and loses power, the indicator will still work. I was getting power to the wire, but the wire wans't connected to the pump ..DOH !

If you want to be super certain to not overheat, but a $20 temp warning light and mount it on the pillar or upper dash. I guarantee you will see that

I would never pay that much for a "warning" system i'm sure can be made for $20 or so even with a alarm. Actually, re reading the auction, the alarm is an extra 9.50.

-Shannon

 

Hello folks. I would like to address some concerns mentioned in this post. But first I want to mention, so as not to be at odds with site admin, that we are working to have this product offered though site sponsors. Two site sponsors are currently evaluating this system. The primary purpose this system was developed is to be a current monitor. The best way to determine if an electric water pump motor has failed is to monitor its current draw. This is something that the LED setup on the mentioned AKM web site can not do. If the pump motor fails, then it will not draw any current. This this system will warn you of that long before your motor starts to heat up. This early warning will give you as much as 1-3 min to find a safe place to stop and turn off your motor. Pump failure of this kind is the most common. When it happens, it still leaves the fuse intact. So if you had the AKM's LED setup, it would not warn you of this condition. The next to conditions that can occur are the only symptoms that the LED setup will give you a warning of. One condition that can occur is pump short circuit (or over current) which will cause the fuse to blow. This happens less frequently, but our system will also warn if you lose power to the pump. The other condition is the loss of a ground connection. This rarely happens, but our system gives you a warning of this as well.

Someone mentioned the temp warning light. The problem with that setup is when it goes off, your motor is already starting to heat up. When this occurs, you have to pull of the road right away and shut off your motor. This system lets you know of pump failure before your motor starts to get hot, giving plenty of time to find a safe place to pull over. It also lets you know which problem has occurred from a single, 3 color LED. It turns red for loss of power, green for loss of ground and yellow for pump failure. The reason the buzzer is an optional piece is because everyone might not want a buzzer, therefore it is an option. Many people wont use an electric water pump because of the fear of damaging their motor when the pump fails. The system can remove that fear, because you now have a warning of pump failure. The cost of this system is cheap insurance compared to the cost of a couple thousand repairing your motor from over heating. As for the mentioning of the system being made for less then $20, I wish. If it did, then it could be sold for a much lower price. The parts alone for this system are more than $20. Then you have to add labor, develop cost and advertising. This is a one of a kind product that gives people peace of mind when running an electric water pump.

 

Thanks for the explanation. I just to clear something up, this is a complete installation kit? It has the relay, wires, LEDs, wiring diagrams and anything else need to install and all we need is the EWP.

 

This system is a add on kit to an existing water pump install. The kit has all the wiring needed to install it. Most people who buy this system (that already have an electric pump installed) would not need a relay or extra wiring. Most electric pumps come with a fuse holder and some wiring. The only thing that anyone would need if installing a pump for the first time is a relay and other odds and ends, much of which can be bought at an auto parts store for less than $10.

 

After messing around with these circuits I decided it's easier and cheaper to add another temp sensor and an overheat alarm. That way if the fuse blows, or the pump fails or ANYTHING you will know your temps are getting dangerous.

 

isn't there some kind of thing that can attach to the housing of the pump and monitor the stator rpm inside the pump housing? Some kind of inductive pickup device.

 

If you read the above posts, then you will know that when the pump fails, it's arealdy too late since the temp will rise very fast.