Pennsylvania-based Tesco Metering has launched two artificial resistive loads for meter testing, calibration and diagnostic applications across electric utility environments.

The 326P and 326X load simulators are engineered to provide accurate, portable and field-ready resistive loads.

As electric utilities modernise grid infrastructure and expand smart metering deployments, the need for accurate, repeatable and practical load simulation tools grows. Field technicians and meter lab teams must validate meter performance under real-world conditions while balancing accuracy, portability and operational efficiency.

The 326P and 326X address these requirements by combining precision resistive load simulation with lightweight, rugged design optimised for field and laboratory use.

The 326P (www.tescometering.com/product/field-testing/load-simulation-and-artificial-loads/artificial-resistive-load-326p/) is a versatile, multi-tap load box designed to support a wide range of testing conditions. It features selectable full-load and light-load current taps, enabling technicians to simulate multiple operating scenarios with a single device. Its compact form factor and broad voltage compatibility make it suitable for flexible field testing and diagnostic applications.

The 326X (www.tescometering.com/product/field-testing/load-simulation-and-artificial-loads/artificial-resistive-load-326x/) is optimised for standard testing environments requiring a fixed, high-current load. Delivering a stable 50A resistive load, it simplifies repeatable test procedures while maintaining portability and rugged construction.

Both models support common utility voltage ranges and are engineered to withstand demanding field conditions, making them suitable for electric utility meter testing, verification, calibration and troubleshooting workflows.

They are designed to support the evolving needs of electric utilities, from traditional meter testing to smart grid validation and field diagnostics. Their compact design and configurable load capabilities enable technicians to replicate real-world load conditions with efficiency and confidence, reducing testing complexity while improving measurement accuracy.

“Utilities need testing tools that deliver precision without sacrificing portability,” said Tom Lawton, CEO at Tesco Metering. “The 326P and 326X reflect Tesco’s commitment to engineering that aligns with the realities of modern field and lab operations, delivering dependable load simulation capabilities in a highly practical form factor.”

Since 1904, Tesco Metering (www.tescometering.com) has been making metering equipment and custom products for the electric utility industry. Its ISO 9001 and ISO 17025 certified facility is in Bristol, Pennsylvania.