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December 2004
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Latest News:
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New UL 60950 & IEC 61010 Seminars
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Reference Desk:
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Application Notes
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Medical News:
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QuadTech to Exhibit at MDM West
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Public Seminars:
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2005 Medical Seminar Schedule
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Integrator News:
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ECI Testing & Process Control Systems
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Product Spotlight:
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1855 Capacitor Leakage Current/IR Meter
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Useful Website:
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Words of Encouragement for the Troops
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Solve This:
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When is EST Not Electrical Safety Testing?
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Talk Back:
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Feedback and Unsubscribe Instructions
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Latest News:
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NEW UL 60950 & UL 61010 Seminars
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Education in your future? Two non-medical seminars have been added to QuadTech and UL's 2005 schedule: Electrical Safety Testing of IT Equipment per UL 60950-1 and Electrical Safety Testing of Measurement, Control and Laboratory Equipment per IEC 61010-1.
Taught by experienced UL Engineers, these seminars are structured so that the participant gains technical competence through lecture and discusssion, then applies this knowledge in practical applications exercises. Topics for discussion include: critical clearance, creepage and through-insulation distances, two-level protection, TNV circuit separation, enclosure design, insulation diagrams and more.
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Reference Desk:
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Application Notes
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If your research includes ground bond testing, filter capacitors, or digibridge operation browse through QuadTech's Technical Library. Access to application notes, articles, and shared resources is yours any time of the day or night. Grab a cup of coffee and start reading.
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Ground Bond Testing per UL 60950
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Have you ever read UL 60950? Did you grasp how to do the ground bond test in paragraph 2.6.3? Not an easy test, but this standard-specific discussion attempts to define protective earth and the test methods associated with it. A few definitions, a little clarification and two examples round out this application note.
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Testing Filter Capacitors On Medical Devices
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Capacitance verification seems like a job for an LCR meter but a hipot tester can do it surprisingly well. EMI filter capacitors used on the interior side of implantable medical devices (IMD's) need to be checked for connection and leakage current. Discover how a hipot tester can do this using an implantable cardiac defibrillator as an example.
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Digibridge Operation and Technique
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Ever wonder what's inside an LCR meter or just how a digital bridge makes a measurement? How is an analog voltage measurement used in calculating the impedance parameters of the device under test? The information in this application note will answer these questions with circuit design descriptions, block diagrams and concise text.
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Medical News:
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QuadTech to Exhibit at MDM West
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Visit us at Medical Design & Manufacturing's West Coast Exhibition at the Anaheim Convention Center (Booth #1271), January 10 - 12, 2005. This trade show features 1,500 exhibiting companies, including the worlds largest exhibition for medical manufacturing.
QuadTech will be featuring its latest test system, the Guardian 6000 Series with CaptivATE, a Windows based testing application for automating the production process of electrical safety testing. Other product lines that will be featured include QuadTech's Hipot Testers, LCR Meters, and Medical Device Safety Analyzers.
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2005 Medical Seminar Schedule
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If training in the application of Medical Standards is on your to-do list for the upcoming year, check out the new medical regulatory compliance seminars offered by UL and QuadTech:
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EMC Design per IEC 60601-2
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Risk Management per ISO 14971
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Quality Management per ISO 13485
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Designing for Compliance to IEC 60601-1
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Medical Software per IEC 60601-4
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These seminars are being offered in multiple locations across the US in 2005. For detailed information, locations, dates and to register online visit, click here.
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Integrator News:
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ECI Testing and Process Control Systems
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ECI Testing & Process Control Systems designs integrated computer-controlled test and process control systems for HVAC and Appliance Manufacturers. If you manufacture refrigerators, air conditioners, compressors, coils, ranges or other HVAC equipment, ECI can improve your quality and productivity with a custom designed process control system for a manufacturing line or an automated test system for a production line. ECI has dedicated engineering, programming and machining departments on-site to design, manufacture, troubleshoot and service your equipment. For more information, visit ECI on the web or contact ECI by telephone at (901) 854-8088.
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Product Spotlight:
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New 1855 Capacitor Leakage Current/IR Meter
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Once again, a customer inquired about the need for a specific tester and we listened. QuadTech is pleased to add the new 1855 Capacitor Leakage Current/IR Meter to its Megohmmeter family. In addition to leakage current and insulation resistance, the 1855 measures rise time and withstand voltage in accordance with the EIAJ RC-2364A standard on electrolytic capacitors.
The 1855 instrument provides powerful charge current up to 500mA and programmable source voltage to 650V DC plus insulation resistance measurements from 10W to 99GW. Other features include: programmable charge and dwell times, high & low test limits, auto ranging and measurement averaging. The 1855 comes standard with an RS232 interface plus it has an optional IEEE-488 & Handler interface for high speed automated measurements. Whether its production line component testing or bench-top R&D testing, the 1855 Capacitor LC/IR Meter is right for the task.
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Useful Website:
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Words of Encouragement for the Troops
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At the end of the year as we count our blessings, a simple expression of thanks to the troops may mean more than any material good.
Operation Dear Abby, powered by AnyServiceMember.Nav.Mil, is the best way to send a "Thank You" to the troops. The military postal service is not accepting packages or letters addressed to "Any Service Member" due to the sheer volume of mail. But you can still provide encouragement, inspiration or a little laughter with a quick email message.
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Solve This:
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When is EST not Electrical Safety Testing?
Here at QuadTech, EST means Electrical Safety Testing. In selling hipot testers with as much as 20kV output, EST has to be our number one priority. Recently however, several EST acronyms have been brought to our attention that have nothing to do with electrical safety.
The answer to last issue's Solve This Electrical Safety Testing Word Search included 41 EST terms.
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