I get an error message when I try to download my Ergomo SportŪ, what do I do now?

If your download will not work or if it is interrupted please check the following:

• Is the CPU plugged into the data transfer cable correctly and is the data-transfer cable plugged into the serial port properly?
• Is your CPU is download mode? Is your software program ready to download and open to the appropriate screen?
• Is your software program using the appropriate COM port? Try changing the Com port to reflect the one that is being used by the appropriate program by clicking on the COM port tab in the athlete settings menu on the home page. Click the drop down menu and make the appropriate correction. Save the changes to the settings.
• Is your program configured to the right power meter? Check to see if your software is configured to use the Ergomo SportŪ, if not, change it to do so by clicking on the power meter type tab in the athlete settings menu on the home page. Click the drop down menu and make the appropriate correction. Save the changes to the settings.

First step: Charge the battery. Be sure to charge the Ergomo weekly, even if not ridden daily.

Second step: Perform the general reset, page 20 of manual. Press left and center buttons and hold down for a FULL 30 seconds, then release. The CPU will now countdown and reset itself. Calibration value, offset, and odometer are retained.

Perform the offset proceedure beginning on page 13 of the manual. Give careful attention to each step of the process. The illustration on page 16,  adjustment screen #2 is only an example. Your unique Ergomo sensor has its specific calibration value stamped on the sensor cartridge. The interger value in adjustment screen #3 must be zero. The instruction for "constant force on the pedal" in adjustment screen #4 is misleading. What is required is continous smooth motion of the crank without force. It is OK  to exceed 60 rpm, this is the minimum for the offset proceedure to work. It is OK to increase the rpm during the offset countdown: "soft pedal"  the crank as smoothly and lightly as possible without allowing the rear wheel to begin coasting. Do the offset test on page 19. If you cannot turn the cranks lightly enough to get results in the stated ranges, you have imparted too much force to the crank during the offset proceedure. This technique may require a little  practice, but once mastered it is not difficult.

If the offset is adjusted correctly, you may have to adjust the screw underneath your bottom bracket housing on your bike frame. In some bikes, the frames have a bottom bracket size configuration that requires you to loosen the screw under the bottom bracket to avoid interference with the Ergomo SportŪ sensor. You may just be able to loosen it about half way or you may have to place washers between the screw and the frame to hold it in place. Either of these fixes should resolve the problem.

All bottom bracket cartidges go through a break in process. Anytime crankarms are mounted to a bb spindle, the crank fixing bolts should be re-torqued to the crankset manufacturer's specifications after 100-150 km of use, and again after 500 km. The Ergomo offset proceedure should be repeated after each re-torquing. All bearings go through a  break in period. As the Ergomo bb bearings seat in, the free force value of the spindle will change, and a fresh offset is required. The break in period varies between individual riders. Any sudden drop in measured watts after several weeks of reliable readings signals bearing break in. Expect to repeat the offset proceedure several times during the initial 1000 -3000 km.

If the Ergomo sensor cartidge was not torqued to 60-65 Nm ( 530 -580 in/lbs) at installation, a stable offset may not be possible.

Here is a table of approximate wheel circumferences and the appropriate settings for your ergomo!