Fluke 345 - Power Quality Clamp Meter

Fluke 345 Power Quality Clamp Meter

The Fluke 345 is a power quality clamp meter that does the job of four instruments in one: a clamp meter, an oscilloscope, a data logger and a digital power meter. It is built for monitoring electronic loads, where harmonics and inrush can quietly cause nuisance tripping and overheating, and where an ordinary clamp meter simply cannot see the problem. A bright colour display shows the harmonic spectrum and waveform, and a low-pass filter with high EMC immunity keeps readings clean around noisy equipment.

Supplied by Powerpoint Engineering as an authorised Fluke distributor, the 345 uses a Hall effect clamp, so it measures DC as well as AC current without breaking the circuit.

What the Fluke 345 measures

• AC and DC current, up to 2000 A DC and 1400 A AC RMS, with 40, 400 and 2000 A autorange
• Voltage, power and power factor as a digital power meter
• Harmonics, analysed and logged digitally or graphically on the colour display
• Inrush current from 3 to 300 seconds, with up to 1000 inrush events stored

Four instruments in one

The value of the 345 is breadth. As an oscilloscope it shows you the waveform, not just a number, so you can see distortion at a glance. As a data logger it records voltage, current, power and harmonics over minutes, hours or months, with averaging periods from 1 second to 15 minutes and three memory areas you can combine for long recordings. For chasing harmonic disturbances and inrush problems on electronic loads, that combination is hard to match in a handheld.

Specifications

Where the 345 fits in the range

The 345 is the power quality specialist among Fluke's clamp meters. For everyday current and voltage work, the Fluke 324 is the simpler choice, and for AC leakage current specifically, see the Fluke 360.

Calibration and support

• Supplied and supported in Ireland by an authorised Fluke distributor
• Calibrated and repaired in our own lab with traceable certificates
• Backed by on-site power quality monitoring survey services

Keep the instrument accurate through our calibration and repair laboratory. Full figures are on the official Fluke 345 datasheet and across the wider Fluke clamp meter range.

FAQs

Can the Fluke 345 measure DC current?

Yes. Its Hall effect clamp measures DC as well as AC current, up to 2000 A DC, without breaking the circuit. That makes it suitable for DC drives, battery systems and solar work as well as AC loads.

What makes the Fluke 345 a power quality clamp meter?

It goes beyond current measurement to analyse harmonics, capture inrush, show the waveform like an oscilloscope and log power data over time. Those functions are what let it diagnose power quality problems on electronic loads.

Does the Fluke 345 need regular calibration?

Yes. To keep current, power and harmonic measurements traceable, calibrate the instrument on a set interval. Our in-house laboratory calibrates and repairs Fluke instruments and issues traceable certificates.