Fluke 378 FC True RMS AC/DC Clamp Meter with FieldSense Technology and Power Quality Indicators

Description

Fluke 378 FC True RMS AC/DC Clamp Meter with FieldSense Technology and Power Quality Indicators

The Fluke 378 FC True RMS AC/DC Clamp Meter is one of Fluke’s most advanced clamp meters, combining industry-leading measurement accuracy, innovative FieldSense® Technology, Power Quality Indicator (PQI) functionality, and wireless connectivity to meet the demands of modern industrial electrical systems. Designed for electricians, industrial maintenance engineers, utility technicians, renewable energy professionals, automation engineers, HVAC specialists, electrical contractors, facility managers, and predictive maintenance teams, the Fluke 378 FC delivers comprehensive electrical diagnostics in one rugged and intelligent handheld instrument.

As industrial facilities increasingly adopt Variable Frequency Drives (VFDs), industrial automation, renewable energy systems, battery energy storage, electric vehicle charging infrastructure, smart manufacturing, and digitally controlled equipment, electrical maintenance has become significantly more complex. Traditional measuring instruments often require multiple devices and extensive testing procedures to identify electrical faults. The Fluke 378 FC simplifies this process by integrating advanced measurement technologies into a single compact instrument that improves technician safety, speeds troubleshooting, and enhances maintenance productivity.

At the heart of the Fluke 378 FC is True RMS measurement technology, providing highly accurate readings for both sinusoidal and distorted electrical waveforms. Modern electrical loads—including VFDs, PLCs, LED lighting, UPS systems, switch-mode power supplies, and electronic motor controls—produce harmonic distortion that conventional averaging meters cannot measure accurately. True RMS capability ensures technicians obtain dependable results regardless of waveform shape.

The Fluke 378 FC measures AC and DC current up to 1000 Amps using its integrated clamp jaw, enabling safe current measurements without disconnecting conductors or interrupting equipment operation. Non-contact current measurement reduces maintenance downtime while improving operator safety during energized electrical testing.

A defining feature of the Fluke 378 FC is FieldSense® Technology, which allows technicians to measure voltage and current simultaneously without direct metallic contact with energized conductors when using an appropriate ground reference. This innovative approach simplifies electrical measurements, minimizes test lead connections, and reduces exposure to energized circuits. By simultaneously measuring voltage and current, the instrument can also calculate and display true power, enabling faster diagnosis of electrical loads, motors, compressors, transformers, HVAC equipment, and industrial machinery.

The Fluke 378 FC also introduces Power Quality Indicator (PQI) technology, an intelligent diagnostic feature that quickly detects abnormalities associated with power quality problems. PQI assists technicians in identifying conditions that may be related to harmonic distortion, voltage instability, or electrical system irregularities, allowing faster troubleshooting before extensive power quality analysis is required. This feature helps maintenance teams prioritize investigations and reduce unnecessary downtime by identifying circuits that may require further evaluation.

The clamp meter is fully compatible with the Fluke iFlex® Flexible Current Probe, extending AC current measurement capability up to 2500A AC while allowing convenient measurement around oversized conductors, busbars, bundled cables, and confined electrical installations where conventional clamp jaws cannot fit. This capability is particularly valuable in utility substations, industrial switchgear, renewable energy facilities, data centers, and manufacturing plants.

Wireless communication through the Fluke Connect® platform enables technicians to monitor measurements remotely, automatically log data, generate inspection reports, analyze historical trends, and share results across maintenance teams. Wireless monitoring also allows personnel to remain outside hazardous electrical boundaries while observing live system performance, improving both productivity and safety.

Beyond current measurement, the Fluke 378 FC functions as a complete professional digital multimeter. Using the supplied test leads when appropriate, technicians can measure AC/DC voltage, resistance, continuity, capacitance, frequency, and DC millivolts, making the instrument suitable for commissioning, troubleshooting, preventive maintenance, and electrical inspections across virtually every industrial sector.

The meter includes Inrush Current measurement, allowing accurate evaluation of startup current drawn by motors, pumps, compressors, transformers, HVAC equipment, and heavy industrial machinery. This function assists with diagnosing overloaded circuits, evaluating motor performance, verifying protective devices, and identifying startup-related electrical faults.

The large backlit LCD display provides exceptional readability in manufacturing facilities, substations, renewable energy installations, electrical rooms, commercial buildings, and outdoor maintenance environments. Multiple measurement values can be viewed simultaneously, reducing testing time and improving diagnostic efficiency.

Built to withstand demanding industrial environments, the Fluke 378 FC features a rugged impact-resistant housing designed for continuous professional use in manufacturing plants, oil and gas facilities, mining operations, utilities, renewable energy projects, transportation infrastructure, commercial buildings, and heavy industrial maintenance operations. Its ergonomic design supports comfortable one-handed operation throughout extended field service tasks.

Safety remains one of Fluke’s highest priorities. The Fluke 378 FC complies with CAT IV 600V and CAT III 1000V safety standards, making it suitable for service entrances, industrial distribution systems, utility infrastructure, permanently installed equipment, commercial electrical installations, and branch circuits. These internationally recognized safety ratings provide confidence when performing measurements on energized electrical systems.

Additional productivity features include Data Hold, Min/Max recording, Low-Pass Filter for VFD measurements, Automatic Power-Off, Auto Ranging, and integrated wireless data management through the Fluke Connect ecosystem.

Typical Applications

The Fluke 378 FC True RMS AC/DC Clamp Meter is ideal for:

• Industrial electrical maintenance
• Renewable energy systems
• Solar photovoltaic (PV) installations
• Battery Energy Storage Systems (BESS)
• Electric vehicle charging infrastructure
• Utility substations
• Industrial automation
• Motor diagnostics
• Manufacturing facilities
• Predictive and preventive maintenance

The Fluke 378 FC combines 1000A AC/DC current measurement, True RMS technology, FieldSense® voltage measurement, Power Quality Indicator (PQI) capability, Fluke Connect wireless communication, and iFlex® Flexible Current Probe compatibility into one of the most capable clamp meters available today. Whether diagnosing electrical faults, monitoring industrial power systems, commissioning renewable energy installations, troubleshooting VFD-controlled equipment, or performing predictive maintenance, the Fluke 378 FC delivers exceptional accuracy, productivity, safety, and long-term reliability.

Japsin Instrumentation – Since 1974