Our Delaware 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 (ETI) is a leader in the calibration, repair, and manufacturing of electrical test equipment. We specialize in NIST-traceable calibration services for a variety of electrical test equipment and mechanical measuring instruments, including meghommeters, multimeters, clamps, torque wrenches, DLRO’s, circuit breaker testers, power factor test sets, recloser test sets, power supplies, power analyzers, and everything in between.

ETI provides both onsite calibration services at our Delaware customers’ facilities as well as in-house service at our calibration laboratory. Our onsite calibration customers enjoy same-day turnaround of their test equipment at their own facilities with minimal downtime. Our in-house calibration service provides fast industry-leading turnaround times of five to eight business days, with an expedite service available to turn your equipment around within three days.

ETI is ISO 9001:2015 accredited, ANSI/NCSL Z540 compliant, and 10 CFR Part 50 Appendix B compliant, making us the clear choice for electrical testing businesses, municipalities, data centers, nuclear energy facilities, utilities, universities, Fortune 500 companies, and electrical contractors of all shapes and sizes.

We also manufacture circuit breaker testing equipment. Our primary injection circuit breaker test sets range from 250A to 6,000A continuous output, with capabilities for instantaneous testing up to 60,000A. ETI’s power supplies are ideal for circuit breaker charging motor testing. We are also the United States reseller and service center for Metrel products, including DLRO’s and meghommeters, making ETI a one-stop shop for your electrical testing needs.

Finally, our capabilities include high-quality repair services that can extend the life of your critical test equipment. ETI can help you solve your most complex and urgent test equipment challenges.

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

  • Mobile Circuit Breaker Test Set
  • Circuit Breaker Test Set Calibration
  • Adjustable Test Stab System
  • Mechanical Instrument Calibration
  • Meter Calibration Services
  • Electrical Calibration Services
  • Pressure Calibration
  • Circuit Breaker Tester Calibration
  • Electric Meter Calibration
  • Electronic Test Equipment Calibration Services
  • Test Equipment Calibration
  • PEARL Calibration
  • Portable Circuit Breaker Tester
  • Portable Current Power Supply
  • Electric Equipment Repair
  • Torque Calibration
  • Multimeter Calibration
  • Clamp Calibration
  • Portable Circuit Breaker Test Set
  • Electrical Meter Calibration
  • Test Equipment Repair
  • Oscilloscope Calibration
  • High Current Digital Ammetter Retrofit
  • Acceptance Testing Calibration
  • Digital Multimeter Calibration
  • NETA Calibration
  • Test Equipment Calibration Services
  • AC-DC Variable Power Supply


On This Page

NIST-Traceable Electrical Test Equipment Calibration Services in Delaware

Testing companies trust in ETI to run the annual calibration programs of their electrical test equipment. Our NIST-traceable calibrations address DLRO’s, recloser test sets, oscilloscopes, circuit breaker testers, power analyzers, electrical clamps, meghommeters, power factor test sets, multimeters, power supplies, and a wide variety of additional instruments. Our people can calibrate your equipment onsite at your location or offsite in ETI’s calibration laboratory. Customers in Delaware decide to have ETI come onsite for same-day turnaround of their equipment with very little down time. When you send your instruments in for service at our laboratory, we strive to return your equipment within 5 to 8 business days. We offer an expedite service for Delaware clients that need urgent turnaround of their instruments. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Universities, electrical contractors, Fortune 500 companies, utilities, data centers, nuclear energy facilities, electrical testing businesses, and municipalities of many shapes and sizes in Delaware rely on ETI as an essential calibration partner.

ETI is a Leading Provider of NIST-Traceable Calibration Services for Mechanical Instruments in Delaware

ETI specializes in NIST-traceable calibration services for a wide array of mechanical measuring and test equipment, including calipers, IR cameras, oil pressure meters, infrared inspection equipment, stop watches, air pressure meters, pressure controllers, micrometers, tachometers, temperature meters, torque wrenches, plus everything in between. We provide both services at our clients’ facilities in Delaware and also in-house support service at our lab. Our onsite customers in Delaware appreciate same-day turnaround of their equipment over at their own facilities with marginal downtime. Our internal calibration offering provides prompt industry-leading turnaround times of 5 to 8 business days, with a priority service offered to restore your equipment to Delaware as soon as is possible. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Nuclear energy facilities, universities, Fortune 500 companies, acceptance testing businesses, electrical contractors, utilities, data centers, and municipalities of all shapes and sizes in Delaware rely on ETI to handle their mechanical test and measuring instrument calibration needs.

We Repair Electrical and Mechanical Test Equipment for Delaware Facilities

ETI fixes all of the major brands and models of electrical testing instruments. Regardless of whether your Delaware facility’s instruments have been in operation for many years or are brand new, our broad repair capabilities can prolong the life of your most important testing equipment. ETI’s repair support services include analog instruments, digital instruments, lab instruments, panel meters, switchboard meters, multimeters, clamp-on meters, power quality meters, power analyzers, oscilloscopes, frequency counters, and a wide range of additional electrical and mechanical test equipment. Every one of our repairs feature NIST-traceable calibration of your instruments, comprehensive documentation, competitive pricing, and a swift turnaround. Delaware facilities turn to ETI to minimize their downtime and repair their critical test instruments.

We Manufacture High-Quality Circuit Breaker Testers and Power Supplies for Facilities Across the Nation

ETI makes and sells industry-leading electrical test equipment. Our Professionals provide services for circuit breaker testing instruments, such as circuit breaker test sets and power supplies. In addition, we are the U.S. reseller and service center for the full line of Metrel electrical test instruments and products.

Our product line of top quality low voltage high current circuit breaker test sets cater to the whole spectrum of electrical testing companies’ needs. Our primary injection circuit breaker testers range from 250A to 6,000 A continuous output, with immediate testing capabilities up to 60,000 A. Our PI-250B, PI-800, and PI-1600 test sets are portable, modular, durable, and lightweight whilst 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 sector in reliability and capabilities for high current circuit breaker testing. All Electrical Test Instrument circuit breaker testers feature our state-of-the-art MAC-21 controller, 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:

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

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

As the United States authorized service center and reseller for Metrel , ETI is undeniably a one-stop answer for electrical testing companies’ instrument requirements. We sell and support the full line of Metrel offerings, which include meghommeters, DLRO’s, and power analyzers. Our yearly repair services and calibration programs on every product we produce and sell make ETI the go to partner of hundreds of electrical testing companies, Fortune 500 companies, utilities, data centers, universities, and municipalities countrywide.

About Delaware

Delaware is one of the 50 states of the United States, in the Mid-Atlantic or Northeastern region. The state’s total area is 2,044 sq mi (5,295 sq km), of which land takes up 1,932 sq mi (5,005 sq km) and inland water, 112 sq mi (290 sq km). Delaware declared its independence from Great Britain on June 15, 1776. It thereby also became independent of Pennsylvania with which it had been connected since 1682. According to legend, Delaware was nicknamed “The Diamond State” because Thomas Jefferson referred to it as a “jewel among the states” due to its prime location on the Eastern Seaboard. Delaware is the only state in the US without any national parks.

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Electrical Test Instruments supports customers in Delaware including the following zip cities: Wilmington. Click here to return to our USA service area page.