Introduction
This manual provides guidance for installing, connecting, calibrating, operating, and servicing the Model 163 Digital Flow Rate Indicator. It emphasizes the importance of using the correct interconnecting wiring and consulting all relevant manuals before installation.

Warranty and Liability
Hoffer Flow Controls, Inc. offers a limited warranty for one year from the delivery date (or eighteen months for deliveries outside the continental US) against defects in material and workmanship, provided the product is properly selected, installed, and maintained. The warranty is limited to repair or replacement of defective goods. The company disclaims any implied warranties of merchantability or fitness for a particular purpose and is not liable for any indirect, incidental, or consequential damages.

Return Requests and Inquiries
For warranty and repair inquiries, customers must contact Hoffer Flow Controls' Customer Service Department to obtain a Returned Material Authorization (RMA) number. Specific information such as the purchase order number, model, and serial number is required for processing returns.

Important Notices
The manual contains proprietary information protected by copyright, and no part of it may be reproduced without prior written consent from Hoffer Flow Controls, Inc. The company reserves the right to make changes to the product and documentation without notice.