qel is choppy

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Calibration is an internal process of the QEL device when energized the 1st time.  The solenoid will pull and drop 3 times on a standard calibration.  Calibration can be forced by pr...
If a vertical rod device, verify the vertical rods are adjusted properly and there is not a bind at the strikes.  Make sure the push bar is not binding at the pushbar guides or any other ...
We offer a couple different HD-QEL options:Hex key dogging (HD) is now available with Von Duprin non fire rated QEL33A/35A/98/99 electric exit devices that were shipped after De...