I have a 31-2 pearson the knot meter made by datamarine goes on and displays 0.0 but as boat travels it does not register the speed. Does anyone know how to repair?
datamarine knot meter not working
- Thread starter gkboomtown
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First thing... put on your mask and go over. Check that the paddlewheel is not fouled. It may be your only problem, since the meter has voltage and is displaying.
I just use my handheld Garmin to see my SOG. The wheel never stays clear for long down here in this warm water...same as you.
I just use my handheld Garmin to see my SOG. The wheel never stays clear for long down here in this warm water...same as you.
Re: Datamarine
SOG is Speed Over Ground from your GPS. I had a similar problem with my datamarine knotmeter showing on only 0.0. The connector to the knotmeter is short with a connector in the bilge. After much testing and buying a second knotmeter I found that the connector in the bilge was not making good contact. You should be able to pull the knot meter from it's through hull by removing a locking pin and replace it with a blank fitting. If you haven't done this before, be sure you have the blank to replace the knotmeter ready as the 1" hole will allow quite a bit of water into the boat. And REPLACE THE LOCKING PIN to hold the blank in. Once you have the knotmeter out you can clean, test and replace if neccesary. I leave mine knotmeter out most of the time becase it can foul so easily in warm water.
Paul
Paul
P303, 224
SOG is Speed Over Ground from your GPS. I had a similar problem with my datamarine knotmeter showing on only 0.0. The connector to the knotmeter is short with a connector in the bilge. After much testing and buying a second knotmeter I found that the connector in the bilge was not making good contact. You should be able to pull the knot meter from it's through hull by removing a locking pin and replace it with a blank fitting. If you haven't done this before, be sure you have the blank to replace the knotmeter ready as the 1" hole will allow quite a bit of water into the boat. And REPLACE THE LOCKING PIN to hold the blank in. Once you have the knotmeter out you can clean, test and replace if neccesary. I leave mine knotmeter out most of the time becase it can foul so easily in warm water.
Paul
Paul
P303, 224
Re: Datamarine
Thanx for the info It seems that what you are saying makes most sense -- The part of warm water affecting it I don't understand. Also where can I get the blank?
Thanx for the info It seems that what you are saying makes most sense -- The part of warm water affecting it I don't understand. Also where can I get the blank?
Bottom Growth
For the blank I would look online and maybe West Marine if you are in a hurry. As for the warm water, it doesn’t affect the knotmeter directly. It makes things like barnacles and algae (bottom slime) grow fast and foul everything. Your knotmeter doesn't have any antifouling paint so things like to grow there. Here in Houston it’s a real problem. Bottom growth can slow your boat down and make your engine (diesel) work too hard to point of smoking.
Paul
For the blank I would look online and maybe West Marine if you are in a hurry. As for the warm water, it doesn’t affect the knotmeter directly. It makes things like barnacles and algae (bottom slime) grow fast and foul everything. Your knotmeter doesn't have any antifouling paint so things like to grow there. Here in Houston it’s a real problem. Bottom growth can slow your boat down and make your engine (diesel) work too hard to point of smoking.
Paul
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