Contact: Keithley Instruments, Inc.
28775 Aurora RoadCleveland, Ohio 44139

[email protected]

Reader Inquiries: (888) 534-8453

Keithley Publishes Four Step Error Checker Poster

Cleveland, Ohio - May 18, 2004 - Keithley Instruments, Inc. (NYSE: KEI) has announced availability of its Four Step Error Checker Poster that offers guidance to engineers and scientists for avoiding common low-level measurement errors. The poster illustrates the measurement type and typical applications, the symptoms of error and their likely causes, and guidelines for avoiding these errors. To request a free copy, visit or call 1-888-KEITHLEY.

In addition to the Four Step Error Checker Poster, Keithley offers a wealth of informative reference materials for making demanding low-level measurements, including:

  • Low Level Measurements Handbook, which describes theoretical and practical considerations involved in the measurement of low DC currents, high resistance, low DC voltages, and low resistances.
  • Application notes that include practical, real world answers to many application questions related to low-level measurements.
  • Lab exercises designed to help students learn about making electrical and physical measurements through hands-on experience.
  • On-line Webcast seminars that discuss timely topics such as how to make accurate resistance measurements, steps to precision measurements, reducing voltage noise and errors in challenging measurements, DC voltage measurements, and even techniques for accurate nanotech electrical measurements.

All of this information is available by visiting the company’s web site at

About Keithley Instruments

With more than 50 years of measurement expertise, Keithley Instruments ( has become a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency) geared to the specialized needs of electronics manufacturers for high performance production testing, process monitoring, product development, and research. By building upon our strength in electrical measurement solutions for research, Keithley has become a production test technology leader for the semiconductor, wireless, optoelectronics, and other precision electronics segments of the worldwide electronics industry. The value we provide to our customers is a combination of precision measurement technology and a rich understanding of their applications to improve the quality, throughput, and yield of their products.

Products and company names listed are trademarks or trade names of their respective companies.

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