Fluke 376 FC Clamp Meter (AC/DC 1000 A, true RMS, iFlex)

True-RMS AC/DC clamp meter for work on switchboards and drives. The supplied flexible iFlex probe fits around busbars and cable bundles that cannot be accessed with the clamp jaws and extends the AC current measuring range.

Features distinguishing it from typical clamp meters include a low-pass filter for measurements downstream of a frequency inverter, inrush-current measurement with noise filtering and Fluke Connect connectivity, allowing readings to be viewed on a phone outside the arc-flash zone with the switchboard doors closed.

During maintenance of substations and trackside cabinets, the meter checks phase loading, point-machine starting currents and battery charger consumption; onboard it measures auxiliary-circuit currents downstream of converters. DC current measurement requires zeroing the indication beforehand; a DC zeroing function is built in.

Specifications (Fluke 376 FC, from the 370 FC Series datasheet):

• Measurement category (CAT) - CAT III 1000 V / CAT IV 600 V
• AC/DC current using jaws - 999.9 A; AC current with iFlex probe - 2500 A
• AC/DC voltage - 1000 V; DC millivolt range - 500 mV
• Resistance - up to 60 kΩ with continuity testing; capacitance - up to 1000 µF; frequency - 5–500 Hz
• Jaw opening - 34 mm; iFlex probe - 7.5 mm diameter, 1.8 m lead length
• Safety standards - IEC 61010-1 (pollution degree 2), IEC 61010-2-032, IEC 61010-2-033
• Operating temperature - –10 °C to +50 °C; IP30 rating (not in operation)
• Weight - 395 g