Allegion PegaSys, Technical Manual

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Electronic Lock Cylinders of the PegaSys Series 47
In doing so, ensure the correct alignment of the contact pins of the low-power adapter towards the
emergency power contacts of the electronic knob:
If the alignment is correct and the batteries are empty, an acoustic signal is heard. If the batteries still
contain residual power then no acoustic signal is heard.
Begin exchanging the batteries. Hold the battery exchange card in front of the knob. While doing so,
hold the low-power adapter at the contact of the knob until the cover is unlocked.
2.4.4 Device reset
In the event of a system change or if a malfunction occurs, perform a reset.
Remove the batteries for this.
After the batteries are re-inserted, they can enroll a new object within two seconds.