Depew, New York, USA - December 8, 2010 - IMI Sensors, a division of PCB Piezotronics, Inc., announces the availability of hazardous area-approved versions of the company's Series 640 industrial vibration transmitters for monitoring motors and pumps at natural gas pipeline pumping stations. These rugged and reliable two-wire, loop powered, 4-20 mA vibration sensors are manufactured to meet specific natural gas industry design requirements, including certification in accordance with ATEX and CSA for use in hazardous areas.

Vibration monitoring of motors and pumps at natural gas pipeline pumping stations has proven effective for determining machinery health, planning maintenance intervals, reducing downtime, and avoiding catastrophic loss. IMI's Series 640 provides a 4-20 mA output signal that is proportional to the overall vibration level of the machine being monitored. Powered by a 12-30 VDC source, the output wire can be connected to any existing PLC, DCS, and SCADA systems.

The Series 640 vibration sensors are enclosed in welded, hermetically sealed, stainless steel housings. Explosion-proof versions of these transmitters are also available. Sensors that offer hazardous area certifications are widely used on gas and oil well heads, supply lines, natural gas reciprocating engines, multi-stage gas compressors, and other machinery operating in hazardous environments.

About IMI Sensors. IMI Sensors is dedicated to addressing the machinery vibration sensing needs for condition monitoring, predictive maintenance, and process control requirements. All IMI sensors and vibration switches are designed to withstand the rigors of harsh industrial environments. Included are sensors that interface directly with vibration data collectors and analysis equipment, as well as process monitoring equipment, PLC, DCS, alarm, and SCADA systems.

About PCB. CB Piezotronics, Inc. is a global leader in the design and manufacture of force, torque, load, strain, pressure, acoustic and vibration sensors, as well as the pioneer of ICP(R) technology. This instrumentation is used for test, measurement, monitoring, and feedback control requirements in automotive, aerospace, industrial, R&D, military, educational, commercial, and OEM applications. From ready-to-ship stock products, to custom-made specials, PCB(R) proudly stands behind all products with services you value most, including 24-hour customer support, a strategic global distribution network, and the industry's only commitment to Total Customer Satisfaction.

Contact:

Greg Slabodkin

Technical Marketing Manager

IMI Sensors/PCB Piezotronics, Inc.

3425 Walden Avenue

Depew, NY 14043

Tel.: (716) 684-0002 ext. 2374