Page 42 - Fall 2008

Instrumentation
Dick Stern
Applied Research Laboratory, The Pennsylvania State University PO Box 30, State College, Pennsylvania 16804
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Programmable Vibration
designed for 24/7 con- tinuous monitoring and protection of cool- ing towers, fin fans, pumps, HVAC systems, and other critical machinery. This elec- tronic switch has much better accuracy and reliability than tradition- al mechanical switches, and is easily installed in
place of existing mechanical switches, since it only requires two wires – and can replace legacy switches without the need for additional cable runs. Series 686B also offers a remote reset capability and USB programmable delays to avoid false trips. This universally powered unit is hermetically sealed for use in the harshest of environments, mounts with a single stud like a sensor, and is available for use in hazardous areas. Contact Molly Bakewell at: mbakewell@pcb.com
The IMI Sensors division of PCB Piezotronics (PCB®) has released Series 686B USB
Smart Switch,
Editor’s Note—The items printed in “Instrumentation” are reported for informational purposes only and are not necessar- ily endorsements by the Editor, Acoustics Today, or the Acoustical Society of America.
The Larson Davis divi- sion of PCB Piezotronics (PCB®) has announced the launch of a new series of high perform- ance triaxial accelerom- eters, Series SEN04xF, designed expressly for taking measurements of worker personal exposure to Hand-arm Vibration (HAV). Designed with special integral low-pass filtering circuits that minimize false readings from shock and mechan- ical resonances, Models SEN040F (1 mV/g sen-
sitivity) and SEN041F (10 mV/g sensitivity) are smaller, lighter and more precise than typical sensors. SEN04xF series sensors can be mounted onto a variety of mechanical mounting adapters for HAV studies; feature miniature four pin connectors; and are available with new heavy-duty cables that interface directly with the Larson Davis HVM100 Human Vibration Exposure Monitor.
Contact Molly Bakewell at: mbakewell@pcb.com
Instrumentation 41