Medical device manufacturer Welch Allyn is recalling approximately 14,000 external defibrillators after 39 reported incidents, including two deaths. The recall involves 14,054 AED 10 and MRL JumpStart external defibrillators manufactured between October 3, 2002 and January 25, 2007. According to Welch Allyn there is the possibility that these prescription devices are … [Read more...]
New CISPR EMC Standard for Household Appliances and Electric Tools
CISPR 14-1 Consol. Ed. 5.1 applies to the conduction and radiation of radio-frequency disturbances from appliances whose main functions are performed by motors and switching regulating devices, unless the radio-frequency energy is intentionally generated or intended for illumination. It includes such equipment as household electrical appliances, electric tools, regulating … [Read more...]
US and UK Shielding Firms Embark on Joint Venture
Braden Shielding Systems USA and Rainford EMC Systems UK have announced that they have entered into a joint venture for technology transfer and cooperative sales and marketing strategies of their respective medical MRI and EMC anechoic chamber product lines. Now Rainford, with an extensive shielding capability and support structure in Europe and Asia, will provide Braden’s … [Read more...]
Building a State-of-the-Art 5-Meter Chamber
An efficient shield room for automotive testing progresses from design to finished structure Michael Koffink, Bob Mitchell Intertek ETL Semko Littleton, MA Four years ago, we noticed a growing demand for EMC testing from the automotive industry. As cars and trucks now feature myriad on-board electronic devices, they are increasingly susceptible to stray emissions while … [Read more...]
Lithium-zinc Ferrite for the Suppression of Electromagnetic Noise
Studies show that Li-Zn ferrites can successfully suppress EMI N.C. Joshi, S.S. Islam, Ph.D., Jamia Islamia University Jamia Nagar Anjali Verma, Ph.D., Indian Institute of Technology New Delhi, India Recent technological development has been characterized by an unprecedented proliferation of digital technology in information and communications equipment. The worldwide … [Read more...]
Engineers Reject Boeing Contract Offer
In another sign of turbulent times in the aerospace industry, just last week engineers at Boeing’s Wichita, KS facility voted down Boeing’s latest contract officer. Following the recommendations of union negotiators, members of the Society of Professional Engineering Employees in Aerospace (SPEEA), Local 2001 voted 209 to 28 to reject the offer. Boeing has offered three-percent … [Read more...]
Product Environmental Regulatory Compliance: The Current Status Worldwide
The drive to protect the environment and to conserve natural resources has brought about a proliferation of regulations Tony Dibiase As the clamor for better and newer electronic products continues worldwide, there is increased concern over landfills accepting growing “mountains” of discarded electronic products. Consequently, global environmental regulatory compliance … [Read more...]
Test Beyond the Specs: Why Test Higher in Frequency and Field Strength?
IEC 61000-4-3: 2006’s frequency escalation Jason Smith and Pat Malloy, AR RF/Microwave Instrumentation Souderton, PA An increasing number of new and proposed EMC standards are pushing the upper frequency test limits higher into the microwave spectrum. The latest EMC standard released, IEC 61000-4-3: 2006, is no exception. The upper frequency test limit has been increased from … [Read more...]
Updates on the New Release of IEC 61000-4-3 Edition 3
Continuous efforts are needed to maintain a consistently repeatable test Jason Smith, AR Worldwide Souderton, PA The IEC 61000-4-3 standard on radiated electromagnetic field immunity has long been used in order to satisfy one key criterion of the European Union’s requirements for obtaining the CE mark. It is usually used in conjunction with a specific product test standard … [Read more...]
Expanded Line of IEC Inlet Filters Includes Higher Attenuation Models
An expanded line of IEC inlet filters from Schaffner EMC includes two new versatile models that offer up to 10 dB better attenuation than other versions in the series. The new FN9244 and FN9244E (with an integrated choke for additional EMI suppression on the earth line) offer a current rating of up to 15 A with an inductance up to 59.5 mH. These devices are well suited for use … [Read more...]
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