Sensor measures vibration displacement on rotating equipment.
May 7, 2008 -
PC420D is IEPE displacement transducer and 4-20 mA vibration transmitter packaged as single sensor. It outputs 4-20 mA signal, based on displacement level of machine vibration, and is able to track balance component of machines. Integrating signal into existing PLC, DCS, or SCADA system simplifies real-time health monitoring. Sensor is suited for condition based monitoring and predictive maintenance of motors in speed range of 300-60,000 rpm.
Wilcoxon Research Introduces First Stand-Alone 4-20 mA Vibration Displacement Sensor for Machinery Monitoring
Germantown, MD - Wilcoxon Research, a leading supplier of quality vibration sensors and sensor networks, announces the addition of a displacement sensor to its popular PC420 Series of 4-20 mA vibration sensors. The PC420D is the first IEPE displacement transducer and 4-20 mA vibration transmitter packaged as a single sensor.
Wilcoxon's PC420 Series of sensors monitors rotating equipment and outputs a real time 4-20 mA signal proportional to the vibration level. By trending this real time data, plant personnel are able to schedule preventative maintenance activities around planned downtime, saving time and money in costly unexpected repairs.
The PC420D sensor outputs a 4-20 mA signal based on the displacement level of the machine vibration. The 4-20 mA output is determined by first measuring the peak to peak vibration, then converting that level to a 4-20 mA signal. Because balance components tend to dominate the vibration spectrum when viewed in displacement units, the PC420D sensor is able to track the balance component of machines, one of the most sought after parameters. Integrating this signal into an existing PLC, DCS or SCADA system simplifies real time health monitoring because vibration, formerly considered too complex, can now be trended in easily understood units of mils or millimeters of displacement.
Measuring displacement can unmask hidden problems and provide data in easy to understand measurement units. Instead of converting to displacement after the measurement is taken, a common practice in diagnostic vibration monitoring systems which can introduce errors known as "ski slopes", the PC420D sensor integrates at the measurement point for the cleanest vibration data.
"Plant personnel want to know the amount of 'mils' at which a machine is operating, because 'mils' is a readily understood parameter," said Tom Smith, Vice President of Sales and Marketing at Wilcoxon Research. "Existing displacement-type sensors, such as eddy current probes that measure shaft position, do not determine the level of machine vibration so we designed a displacement sensor specifically to meet this need."
The PC420D is ideal for condition based monitoring and predictive maintenance of motors in the speed (frequency) range of 300 rpm to 60,000 rpm (5 Hz to 1,000 Hz). The PC420D can be widely used to monitor balance of plant instrumentation such as pump motors, blowers, fan motors, compressor motors, and a wide variety of machine tool drive motors to significantly reduce failure rates in the field. Motors within the above speed range are frequently found in industries such as pulp and paper, nuclear power, power generation, petrochemical, oil and gas, food and beverage, pharmaceuticals, railway, steel making, and wastewater treatment plants.
A wide variety of PC420 Series sensors are available to suit individual monitoring needs. The 4-20 mA output can be proportional to acceleration or velocity, with the full scale value being equal to the root-mean-square (rms), peak, or Wilcoxon's exclusive true peak level. With the addition of this new product, Wilcoxon now offers reliability engineers the ability to monitor the peak to peak displacement of their machinery.
For complete specifications or to learn more about the PC420D, go to http://www.wilcoxon.com/vi_index.cfm?PD_ID=334. A white paper about displacement monitoring is available from the Wilcoxon Research knowledge desk at http://www.wilcoxon.com/knowdesk_items.cfm?KDtype=TN. To learn more about Wilcoxon Research, Inc., or the pledge of Total Lower Cost of Ownership, visit www.wilcoxon.com, call 800-WILCOXON, or email wilcoxon@meggitt.com.
For further information contact:
Wilcoxon Research
Courtney Schlapo, Marketing Communications
281-213-8238
courtney.schlapo@meggitt.com
Wilcoxon Research Inc, a Meggitt group company, is committed to providing innovative vibration instrumentation, backed by outstanding customer service and a generous warranty. Wilcoxon's Total Lower Cost (TLC) of Ownership means that you won't waste time and money replacing failed sensors or waiting for items with long lead times. www.wilcoxon.com
Meggitt PLC Headquartered in the United Kingdom, Meggitt PLC is an international group operating in North America, Europe and Asia. Known for its specialised extreme environment engineering, Meggitt is a world leader in aerospace equipment, sensing systems, defence training and combat support products and systems. www.meggitt.com
Public Relations:
KCOMM
Dave Holscher
USA
Phone: 949-295-5515 E-mail this person Company Information: Name: Wilcoxon Research, Inc. Address: 20511 Seneca Meadows Parkway City: Germantown State: MD ZIP: 20876 Country: USA Phone: 301-330-8811 FAX: 301-330-8873 http://www.wilcoxon.com
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