1
Introduction
The Fluke 377, 377 FC, 378, and 378 FC Current Clamp (the
Clamp or Product) provides:
• display with two simultaneous measurements (current and
voltage)
• grounding with a single lead
• live measurements with no circuit downtime
• non-contact voltage technology (measurement for Power
Health Indicator, power factor, and real power)
• wireless connectivity to smartphone for work-orders and
reporting integration with Fluke Connect™
The Clamp measures true-rms ac current and voltage, dc current
and voltage, inrush current, resistance, capacitance, frequency,
and dc millivolts.
The included iFlex (detachable, flexible current-probe) expands
the measurement range to 2500 A ac. The iFlex allows
measurements of awkward sized conductors and improved wire
access.
The illustrations in this manual show the 378 FC.
Table 1 is a list of features available for each model.
Table 1. Features by Model
Model 377 378 377 FC 378 FC
BLE for FC
••
Power Heath Indicator
••
Phase Rotation
App Only App Only
Sequential phase - NC voltage
measurement
••••
Phase-to-phase voltage calculation
••••
True RMS
••••
Logging
••
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