vdo sumlog calibration
My Sirius has the same instrument including the impeller but it reads very high ie about twice as high as my GPS unit. is there a way to calibrate it?
George
hello george.. the way to calibrate the unit is to look at the back of the head unit, where you will find a blue set of microswitches. if you make all of these little switches "on", the unit will show 36% more than actual. if you make all of them "off" it will show 36% less than actual.
the user manual has a table showing which switches should be "on" and which "off" for each deviation, but i guess you don't have the manual. your best bet would be to play with the switches until the reading matches your gps.
regards.