Integral intelligent DUO-function comprising DORMA TS 83 door closer and electro-mechanical servo drive unit. Integral microprocessor control with full monitoring of door position by means of incremental encoder. Intelligent safety function with door balancing action in the event of obstruction.

Automatic opening by means of electro-mechanical control of integral door closer. Automatic closing by spring pressure independent of mains. "Power Assist" servo function for manual opening of door with minimal force (similar to free-swing door closer) with fully integrated safety function.

Extended hold open time (delay function) of 5 minutes available for activation.

Opening and closing speed, backcheck and delayed action closing range all separately adjustable. Closing force infinitely variable between size 2 and 4.

DORMA TS 83 door closer function constantly available. Control programmes: OFF. AUTOMATIC "LOW ENERGY". SERVO "POWER ASSIST".

Push & Go function available (automatic opening assist function). Prepared for two-door interlock operation and connection of electric strikes, locking devices, command signal transmitters.

Power limitation of automatic functions in accordance with US standards ANSI A 156.19. for low energy operators Power supply: 220 - 240 V, 50 Hz.

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