Our North Carolina Technical Staff Has Hands-On Experience Working With a Wide Range of Electrical and Mechanical Instruments. We Provide Quality Service and Support You Can Rely On

Electrical Test Instruments, LLC DBA ETI Precision (ETI) is a leader in the calibration and repair of test and measurement equipment, specializing in high-current and high-voltage instruments.

We provide onsite services in North Carolina region, minimizing the downtime of your critical instruments by offering calibration services at your facility. Our NIST-traceable calibration services encompass a wide variety of electrical, mechanical, radio frequency (RF), pressure, physical-dimensional, and environmental instrumentation. For more information https://etiprecision.com/calibration/

We are an ISO 9001:2015-certified, ISO/IEC 17025:2017-accredited, and ANSI/NCSL Z540-1-1994-accredited calibration laboratory. We offer MIL-STD-45562A-compliant calibrations and calibrations in accordance with 10 CFR Part 21 and 10 CR Part 50 Appendix B upon request.

Contact us today
Email: info@etiprecision.com
Phone: 410-857-1880

Just some of the products and services we offer our North Carolina customers:

  • Calibration of Test & Measurement Equipment
  • IR Thermometer Calibration
  • Digital Multimeter Calibration
  • Ammeter & Shunt Calibration
  • Temperature Probe Calibration
  • DLRO Calibration
  • Process Calibrator Calibration
  • Stopwatches & Timers
  • Thermocouple Calibrator Calibration
  • Frequency Counter Calibration
  • Sound Level Meter Calibration
  • Oscilloscope Calibration
  • Torque Wrench Calibration
  • Calibration of High Current – High Voltage Equipment:
  • High Voltage Detector Calibration
  • Relay Test Set Calibration
  • Current & Potential Transformers
  • Primary Injection Test Set Calibration
  • Hipot Tester Calibration
  • AC and DC voltages above 100kV
  • Single & Three Phase TTR Calibration
  • Secondary Test Set Calibration
  • Megohmmeter Calibration
  • Earth Ground Tester Calibration
  • Power Quality Analyzer Calibration
  • Power Supply Calibration


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ETI is a Premier Supplier of NIST-Traceable Calibration Services for Electrical Test Equipment in and around North Carolina

ETI provides NIST-traceable calibration services for a variety of electrical test equipment, which includes power factor test sets, recloser test sets, circuit breaker testers, megohmmeters, electrical clamps, multimeters, power supplies, DLRO’s, power analyzers, oscilloscopes, and everything in between. We provide onsite calibration services in our customers’ facilities in North Carolina. Our onsite calibration customers in North Carolina reap the benefits of same-day turnaround of their test equipment over at their private facilities with very little downtime. ETI is an ISO 9001:2015-accredited calibration lab that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Municipalities, electrical testing businesses, nuclear energy facilities, Fortune 500 companies, electrical contractors, data centers, universities, and utilities of many sizes and shapes in the North Carolina Area turn to ETI to take care of their electrical test equipment calibration programs.

We Support North Carolina Organizations with NIST-Traceable Mechanical Test Equipment Calibration Services

ETI specializes in NIST-traceable calibration services for a wide range of mechanical measuring and test equipment, including IR cameras, infrared inspection equipment, stop watches, pressure controllers, torque wrenches, tachometers, oil pressure meters, calipers, air pressure meters, temperature meters, micrometers, plus everything in between. We provide onsite calibration services at our clients’ business locations in North Carolina. Our onsite calibration customers in North Carolina take advantage of same-day turnaround of their test equipment over at their private facilities with very little downtime. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Data centers, nuclear energy facilities, universities, municipalities, electrical contractors, acceptance testing businesses, Fortune 500 companies, and utilities of all shapes and sizes in North Carolina turn to ETI to manage their mechanical test and measuring instrument calibration needs.

We Repair Electrical and Mechanical Test Equipment for North Carolina Facilities

ETI repairs all of the major brands and models of electrical testing instruments. Regardless of whether your North Carolina facility’s instruments have been in service for decades or are recent to your company, our broad repair capabilities are able to extend the life of your most important testing equipment. ETI’s repair customer services include clamp-on meters, power quality meters, oscilloscopes, lab instruments, power analyzers, digital instruments, frequency counters, switchboard meters, analog instruments, multimeters, panel meters, and a variety of other electrical and mechanical test equipment. Every one of our repair services feature NIST-traceable calibration of your instruments, comprehensive documentation, competitive pricing, and a swift turnaround. North Carolina facilities turn to ETI to decrease their downtime and repair their critical test instruments.

Manufacturing Top Quality Circuit Breaker Testers and Power Supplies for Facilities All Over the USA

ETI manufactures and retails industry-leading electrical test equipment. Our Professionals provide services for circuit breaker testing instruments, which include circuit breaker test sets and power supplies. In addition, we are the United States reseller and service center for the full line of Metrel electrical test instruments and products.

Our product line of high-quality low voltage high current circuit breaker test sets serve the full spectrum of electrical testing companies’ requirements. Our primary injection circuit breaker testers range from 250A to 6,000 A continuous output, with instantaneous testing capabilities up to 60,000 A. Our PI-250B, PI-800, and PI-1600 test sets are modular, portable, durable, and lightweight while outperforming competing products’ capabilities at their price points. Our stationary PI-2500, PI-4000B, PI-5000, and PI-6000 circuit breaker test sets also lead the market in reliability and capabilities for high current circuit breaker testing. All ETI circuit breaker testers incorporate our leading edge MAC-21 controller, which is a self-contained microprocessor-based metering and control package for primary injection testing. In addition, we retrofit other manufacturers’ circuit breaker test sets with our MAC-21 controller:

  • extending their useful lives,
  • expanding their capabilities,
  • and revamping the circuit breaker testing capabilities of our valued clients.

ETI’s premium power supplies are light in weight, durable, and dependable. Our instruments are capable of outputting 7.2 A to 20A continuous at 140 VAC. ETI’s power supplies are perfect for circuit breaker charging motor testing.

As the U.S. authorized service center and reseller for Metrel , ETI is genuinely a one-stop shop for electrical testing companies’ instrument needs. We sell and support the complete line of Metrel instruments, which include meghommeters, DLRO’s, and power analyzers. Our annual calibration programs and repair services on all products we build and sell make ETI the trusted partner of hundreds of electrical testing companies, universities, data centers, Fortune 500 companies, utilities, and municipalities all over the country.

Calibration and Repair Services in North Carolina

About North Carolina

A South-eastern Region state in the USA, North Carolina has a population of 10,488,084. The largest city is Charlotte and the state capital is Raleigh. Other prominent cities are Durham, Fayetteville, Wilmington, and more. The Research Triangle Park situated in Raleigh is the biggest research center in the country. North Carolina is one of the thirteen colonies originally formed in the USA. Later is seceded the Union Government and joined the Confederacy and played an active part in the Civil War. After the loss to the union, the members of the Confederacy joined the Union. Carolina is named so after king Charles I of England, Carolus is Latin for Charles. It was at Kill Devil Hills here that Wright Brothers first piloted their controlled and sustained flight of a powered aircraft successfully. EUE Screen Gems Studio based at Wilmington is the largest TV and film production unit outside of California.

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ETI Precision – Electrical Test Instruments supports customers in North Carolina, including the following cities: Asheville, Charlotte, Durham, Fayatteville, Raleigh, Wilmington, Winston-Salem. Click here to return to our USA service page.