This might help some people.
X
-
-
2000 SN Faria Speedo runing 5-8 MPH slow.
Just installed the Faria replacement gauges and paddle wheel in my 200 SN. It runs about 5-8 MPH slow when checking it with the GPS. Any ideas on how to fix this problem? And yes I have the potentimeter adjusted all the way up.
Thanks..
Comment
-
-
Originally posted by sweepyboy View PostJust installed the Faria replacement gauges and paddle wheel in my 200 SN. It runs about 5-8 MPH slow when checking it with the GPS. Any ideas on how to fix this problem? And yes I have the potentimeter adjusted all the way up.
Thanks..
Upgraded mine recently also, mine runs about 3 MPH slower when I compare with my GPS at 22mph. Potentimeter is adjusted all the way up. I just emailed Faria and asked them.Last edited by 74green; 07-22-2010, 04:31 PM.Current: 2001 Air Nautique GT-40
Comment
-
-
Email Response from Faria Marine Instruments about gauge accuracy
I emailed Faria about the problem and here is the Email I received. As John mentions... I am going to drop the switch position down one step and see if it solves the problem.
Trey,
Here are some basics, please feel free to share this info.
Analog instruments have a 2% accuracy factor. Meaning at best, they will be off by 2% of the scale they are reading. So for example on a 50mph speedometer, they can be off by apx 1mph.
Digital instruments have a 1% accuracy factor. So on a 50mph speedo they will be off by .5 mph
Gps speed is similarly accurate, but only after the boat/vehicle has move some distance so the averaging can take place and render the GPS speed.
Additionally, with a paddle wheel sender for the speed info, if the placement is not ideal, or if there is some debris in the wheel, that too can have an effect on the readings.
You may have noticed that on the back of the speedometer, there is a 6 position switch. The potentiometer adjustment is a micro adjustment knob with limited effect within each switch position on the speedometer. We suggest you drop the switch position down one step. Meaning if you are in position 3 for example, drop it to position 2, then use the potentiometer to fine tune the speedo. Repeat as needed in another switch position until you have the accuracy you seek.
Hope this helps
John
John G. Alexopoulos
Marine Sales
Faria Marine InstrumentsCurrent: 2001 Air Nautique GT-40
Comment
-
Comment