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Reply to "Gunrunner John chuff generator questions"

The C-G calibration doesn't care what mode you're in, all it needs is power and being able to manipulate the config jumper.

Note there is a specific sequence that has to be followed for the calibration.

You should first verify that the C-G is reading the tach strip by rotating the flywheel and seeing that the LED blinks for ever stripe. There is a procedure to reset to sensor test mode in the instructions  Note that the C-G is shipped with sensor test mode active.

To return to sensor test mode, do the following:

  • Power off
  • Add the cal jumper
  • Power on, LED comes on solid
  • Remove the cal jumper without moving the flywheel
  • Power off

You should be in sensor test mode to check the tach sensor at this point.  Each strip should blink the led as it passes.

If the sensor reading test is successful, do the following:

  • Power Off.
  • Connect the cal jumper
  • Power On, LED is on constant
  • Rotate the flywheel to give a quarter turn to the drivers
  • Remove the cal jumper (power still on!)
  • The LED should go out
  • Power Off

That completes the calibration, when you power up, you should have chuffs at about 1/4 a rev of the drivers.  Sometimes it's necessary to do this procedure a couple of times to get it right, it's easy for the flywheel to move enough between finger rotations to add extra counts.

Ok I just tried putting it in sensor test mode. The LED is not blinking. And just to clarify the final step for sensor test mode. Power off, then each strip should blink the LED?

Last edited by Dj'sOgaugetrains

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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