Set # Poles
For Direct Plug-in units, this should be set to the number of Hall Effect transitions
per full rotation of the wheel. Crystalyte 400 series hubs have 8 while the 5300
series hubs have 12. For units that use a speedometer sensor and spoke
magnet, #poles should be set to 1, unless you have multiple magnets on the
The DrainBrain is shipped with a default wheel circumference of
2075mm, corresponding to a typical 26" tire. In order to program your
exact wheel size, hold the button down while the meter is being
powered on. You will then be presented with the wheel circumference
in millimetres. Toggle the value of the flashing digit by pressing the
button, and hold the button to save it and move to the next digit.
Jay64 wrote:I went with the measurment from my string calculated off the inches, 2070mm. Went out and did a couple of test runs up and down my street. My homemade battery box is slightly broken at the moment, so I only hooked up one 28v battery, fully charged, for this test. I noticed that I gained about .5 mph by leaning forward into a 'racer tuck' while pedaling at the same rate.
27.9v 0.03a (while I was sitting. maybe I need to re-set that, or maybe it was just powering down still.) 0.869ah 0.748mi
watt-hrs 20.684 wh/mi 27.8
Amin -0.06 Amax 36.19 Vmin 17.8
maxS 20.4 AvgS 13.9 0h3m13s
EcoForumZ wrote:Does the cycle analyst show how many amps are being used by the controller? I want to see how many amps are used with my 36v battery compared to the 24 on the ezip. I saw the controller on the ezip and it says 35 amps on the top so I am wondering what it is actually running at.