Have been down to boat today what a corker of a day!
My problem is with my speed and distance log instrument, it powers up ok but does not register any speed.
I have taken the paddle wheel sensor out and it is not covered with muck or weed have tried spinning it up but still it does not register. Is it u/s or does it just need re calibrating.
It worked ok when i first bought the boat.
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Thread: Nasa speed and distance log
25-02-12, 20:34 #1Registered User
Location : gloucestershire
- Join Date
- Jan 2003
Nasa speed and distance log
26-02-12, 03:37 #2Registered User
Location : Near Windermere
- Join Date
- Feb 2010
Why dont you ring the manufacturers and ask them. PS I had one of these and I bought a spare paddle wheel, I would buy one and swap it and see if there is an improvement
26-02-12, 05:21 #3
Spinning should show some sort of reading, at least at low rpm. The instrument is not designed for speed over a certain limit so a rapid spin of the paddle may make the instrument incapable of reading the pulse.
You can get a complete unit or just the paddlewheel
26-02-12, 19:27 #4
I have Nasa Target log and depth gauges. There has been a couple of times when the log hasn't registered, but knocking the crud off has done the trick.
27-02-12, 21:13 #5
If it has been left a while try removing the RF plug from the back of the instrument and ensure it is not corroded, clean and refit also.... I recently thought mine was goosed and then found it was set on trip! Once set to speed all was good in the world of smeaks!