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 Gaithersburg 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.
On This Page
ETI specializes in NIST-traceable calibration services for various types of electrical test equipment, including oscilloscopes, circuit breaker testers, power analyzers, DLRO’s, electrical clamps, power factor test sets, recloser test sets, power supplies, multimeters, meghommeters, and everything in between. We provide both onsite calibration solutions at our clients’ facilities in Gaithersburg and also service at our calibration laboratory. Our onsite calibration customers in Gaithersburg appreciate same-day turnaround of their test equipment at their private facilities with very little downtime. Our internal calibration assistance provides speedy industry-leading turnaround times of 5 to 8 business days, with an expedite service available to return your facility’s equipment to Gaithersburg as soon as possible. ETI is an ISO 9001:2015-accredited calibration lab that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Data centers, universities, nuclear energy facilities, municipalities, electrical testing businesses, utilities, electrical contractors, and Fortune 500 companies of all sizes and shapes in Gaithersburg, Maryland count on ETI to take care of their electrical test equipment calibration programs.
ETI specializes in NIST-traceable calibration services for a wide range of test equipment and mechanical measuring, 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 onsite calibration services at our clients’ facilities in Gaithersburg, MD as well as in-house professional service at our laboratory. Our onsite customers in Gaithersburg appreciate same-day turnaround of their equipment over at their private facilities with very little downtime. Our internal service supplies fast industry-leading turnaround times of five to eight business days, with an expedite service obtainable to return your equipment to Gaithersburg as quickly as we can. 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 types in Gaithersburg, Maryland rely on ETI to manage their measuring instrument and mechanical test calibration programs.
ETI repairs all major brand names and models of electrical testing instruments. Regardless of whether your Gaithersburg facility’s instruments have been in operation for many years or are recent to your company, our vast repair capabilities are able to lengthen the lifespan of your essential testing equipment. ETI’s repair support 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 repairs include NIST-traceable calibration of your equipment, comprehensive documentation, competitive rates, and a fast turnaround. Gaithersburg facilities turn to ETI to lessen their down time and fix their critical test instruments.
ETI produces and retails industry-leading electrical test equipment. Our experts provide services for circuit breaker testing instruments, including circuit breaker test sets and power supplies. In addition, we are the United States service center and reseller for the full line of Metrel electrical test instruments and products.
Our line of high-quality low voltage high current circuit breaker test sets provide for the whole spectrum of electrical testing companies’ necessities. 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 capabilities and reliability for high current circuit breaker testing. All Electrical Test Instrument circuit breaker testers include our cutting edge MAC-21 controller, a self-contained microprocessor-based metering and control package for primary injection testing. We also retrofit other manufacturers’ circuit breaker test sets with our MAC-21 controller:
ETI’s top notch power supplies are light-weight, durable, and dependable. Our products are capable of outputting 7.2 A to 20A continuous at 140 VAC. ETI’s power supplies are optimal for circuit breaker charging motor testing.
As the U.S. reseller and authorized service center for Metrel , ETI is undeniably a one-stop shop for electrical testing companies’ instrument requirements. We support and sell the complete line of Metrel instruments, including DLRO’s, meghommeters, and power analyzers. Our annual repair services and calibration programs on every product we manufacture and sell make ETI the trusted partner of hundreds of electrical testing companies, data centers, universities, Fortune 500 companies, utilities, and municipalities across the country.
The Maryland city of Gaithersburg, county seat of Montgomery County, is located 50 miles west of Baltimore and 27 miles northwest of the nation’s capital of Washington, D.C. Gaithersburg is divided into east and west sections, separated by Interstate 270. The eastern section of the city is older and is the original portion of the town before more recent growth. With over 69,000 residents located in the heart of Montgomery County, Gaithersburg is one of the largest cities in Maryland. With an estimated median household income in 2016: $84,312. In August, Gaithersburg hosts the annual Montgomery County Agricultural Fair, the biggest county fair in the state.
Electrical Test Instruments supports customers in Gaithersburg, Maryland, including the following zip codes: 20697, 20877, 20878, 20879, 20884, 20885, 20899. Click here to return to our MD service area page.