APG VBL Vibrating Switch user manual - Manual (Page 10)

VBL Series Rev. A2, 9/09
10
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
• Principle of Operation
The vibration rod vibrates by installing piezo-electric element and
acceleration pickup mounted vibration board at the tip of the internal pipe. The
piezoelectric element provides vibration and the acceleration pickup detects
changes in the vibrational frequency. Covered with solids dampens vibration of
the vibration pipe. The electronic circuit detects the damping of these vibration
pipe. The electronic circuit detects the damping of these vibration and converts
into an relay output.