Resistance Measurement ll PROMET L100s

Description

Resistance Measurement ll PROMET L100s

PROMET L100s – High-Accuracy Micro-Ohmmeter for Ohmic and Inductive Loads

The PROMET L100s is a versatile, battery-powered precision resistance meter designed to measure resistance values from micro-ohms (μΩ) up to ohms (Ω). With four-wire measurement technology and test currents of up to 100 A, it provides reliable and highly accurate resistance measurements for a wide range of electrical applications.

The instrument is suitable for measuring contact resistance as well as winding resistance in transformers, motors, and instrument transformers. Its interchangeable battery provides complete independence from mains power, allowing users to perform measurements conveniently in the field, at substations, industrial facilities, and other demanding environments.

Mobility and Interchangeable Battery

The PROMET L100s uses a replaceable battery system that provides excellent mobility and allows testing without a mains connection. Batteries can be changed quickly, helping maintain continuous operation during extended testing.

The battery is designed for demanding working conditions and offers protection against shocks and other mechanical stresses. An integrated monitoring system displays the charging status, while built-in protection features help prevent overcharging and deep discharge.

Compact and Rugged Protective Case

The PROMET L100s is supplied in a compact, robust hard case that protects the instrument against impacts, knocks, and accidental drops. This makes it well suited for use in industrial environments, outdoor locations, construction sites, substations, and other challenging working conditions.

Simple and Intuitive Operation

The instrument features a 5-inch resistive touchscreen combined with function keys for easy operation. Test parameters and measurement results are presented in a clear and organized format.

Acoustic signals provide additional feedback during configuration and measurement, helping users operate the instrument efficiently.

Contact Resistance and Electrical Connection Testing

Regular contact resistance measurements provide important information about the condition of electrical contacts and connection points. The PROMET L100s can accurately identify increased contact resistance that may result from ageing, deterioration, loose connections, or other issues.

By detecting abnormal resistance values at an early stage, maintenance teams can plan corrective action and help reduce unexpected equipment downtime.

Contact Resistance Measurement with Double-Sided Earthing

The PROMET L100s can accurately measure the resistance of main switchgear contacts even when the equipment is earthed on both sides. This capability simplifies field testing while maintaining safe measurement practices.

Resistance Measurement on Inductive Loads

The PROMET L100s is also designed for measuring the resistance of inductive components such as high-, medium-, and low-voltage transformers, motors, and instrument transformers.

A dedicated measurement algorithm manages the charging and discharging of inductive loads efficiently, helping reduce overall measurement time. The energy stored in the magnetic core during the process can be monitored through the instrument.

Built-in safety functions also help protect the operator and equipment against discharge arcs when current leads are disconnected.

Temperature-Compensated Resistance Measurement

The PROMET L100s supports temperature-compensated resistance measurements. A temperature sensor records the temperature at the measurement point, allowing the measured resistance to be calculated with reference to the selected temperature.

This feature helps provide more consistent and comparable measurement results under different environmental conditions.

PC-Based Data Management and Test Reports

The PROMET L100s can be connected directly to a PC for convenient management of stored measurement data. Dedicated software allows users to retrieve, organize, and review measurement results.

Test data can be exported to Excel or included in structured test reports, simplifying documentation and record keeping.

Integration with ACTAS Switchgear Testing Systems

The PROMET L100s provides interfaces for integration with ACTAS testing systems. Through ACTAS software, resistance measurements can be incorporated into complete switchgear testing procedures and automated test sequences.

Measured values are automatically used for test evaluation and can be documented in the final test report. When combined with ACTAS, the PROMET L100s also supports static and dynamic contact resistance measurements on three switch poles simultaneously, providing a comprehensive assessment of switchgear contact performance.