ProBio (QR)
User Manual
P a g e
| 9
Copyright©2021 ZKTECO CO., LTD. All rights reserved.
NOTE:
•
Make sure whether the positive polarity and negative polarity of the DC 12V power supply is
connected correctly. A reverse connection may damage the device. It is not advisable to connect
the AC 24V power supply to the DC 12V input port.
•
Make sure to connect the wires following the positive polarity and negative polarity shown on the
device's nameplate.
•
The warranty service does not cover accidental damage, damage caused by mis-operation, and
damage due to independent installation or repair of the product by the user.
