Fluke 345

Product overview: Fluke 345 Power Quality Clamp Meter – Electronic Power Meter

AC and DC current and voltage measurement – ideal tool for troubleshooting and logging on power electronics

The Fluke 345 is more than an electric power meter. Combining the functions of a clamp meter, oscilloscope, data logger and digital power meter into one handy device, the Fluke 345 is ideal for working with variable frequency motor drives, high efficiency lighting and other loads using switching electronics. The multi-faceted Fluke 345 is packed with features such as a bright, color display to analyze the harmonic spectrum, a low-pass filter to remove high frequency noise and a high EMC immunity design, making the Fluke 345 power analyzer ideal for troubleshooting power quality on switching loads. The internal memory of this electric power meter enables long-term power quality logging for analysis of trends or intermittent problems. Additionally, the Hall Effect clamp meter design makes measurement of dc current possible without the need to break the circuit. Besides effectively performing basic tasks like measuring power and power factor, the Fluke 345 power meters offer the ease of use, portability and flexibility needed to resolve most power issues in commercial, industrial and residential settings. Setup and troubleshoot variable frequency drives and UPS systems – Verify correct operation by measuring key power quality parameters Harmonics measurements – Uncover harmonic issues that can damage or disrupt critical equipment Inrush capture – Check start-up current where spurious resets or nuisance circuit breaker tripping occurs Load studies – Verify electrical system capacity before adding loads For three phase applications the 1735 and 43- Series II products will provide the same type of results.

Other useful features:

Delivers accuracy even in noisy environments with distorted waveforms present on electronic loads with low-pass filter Logs any power quality parameter, including harmonics, for minutes or for over a month to help identify intermittent faults Verifies batteries with direct measurement of DC ripple (%) for battery and DC systems Analyzes and logs harmonics digitally or graphically Captures and analyzes inrush current nuisance tripping due from 3 seconds to 300 seconds Makes it easy to confirm power meter setup with large backlit color display of waveforms and trends Downloads logged data via USB with PowerLog application software making it easy to view trends and screenshots, analyze, and create reports Powers the instrument without using the battery when performing extended logging sessions Provides built in three-phase power measurement capability for balanced loads Allows you to view graphs and generate reports with included Power Log software

What’s in the box:

• 345 Power Quality Clamp Meter
• (1 pair) Test leads
• (1 pair) Alligator clips
• (1 pair) Test probes
• USB cable
• Soft carrying case
• International AC adapter / battery eliminator
• Power Log software
• Quick Reference Guide

Specifications: Fluke 345 Power Quality Clamp Meter – Electronic Power Meter

Specifications
Display	Color transmissive LCD 320 x 240 pixels (70 mm diagonal) with 2 level backlight
Power supply	Battery type 1.5 V Alkaline AA MN 1500 or IEC LR6 x 6
Battery life typically	> 10 hours (backlight on full) > 12 hours (backlight reduced)
Battery eliminator	Input	110/230 V 50/60 Hz
	Output	15 VDC, 300 mA
Ambient conditions (for indoor use only)
Reference conditions	All accuracies stated at 23°C ±1°C (73.4°F ±1.8°F)
Operating temperature	0°C to 50°C (32°F to 122°F)
Temperature coefficient of current	≤ ±0.15% of rdg per °C
Temperature coefficient of voltage	≤ ±0.15% of rdg per °C
Maximum relative humidity	80% for temperatures up to 31°C (87°F) decreasing linearly to 50% relative humidity at 40°C (104°F)
Maximum operating altitude	2000 m
Electrical safety
Maximum safe working voltages	Safety IEC 61010-1 600 V CAT IV double or reinforced insulation, pollution degree 2 Protection IP40; EN60529
Current measurement	600 VAC rms or DC between uninsulated conductor and ground
Voltage measurement	600 VAC rms or DC between either input terminal and ground, or 825 V between energized phase voltages (delta power config.)
EMC
Emission	IEC/EN 61326-1:1997 A
Immunity	IEC/EN 61326-1:1997 Annex C Performance Criterion B
Mechanical
Dimensions (L x W x D)	300 x 98 x 52 mm (12 x 3.75 x 2 in)
Weight including batteries	820 g (1.8 lb)
Jaw opening	60 mm
Jaw capacity	58 mm diameter
Cleaning	The unit can be cleaned with an Isopropanol impregnated cloth. Do not use abrasives or other solvents.
Electrical data
Accuracy	23°C ±1°C (73.4°F ±1.8°F). See Ambient conditions specifications for temperature coefficients.
Current measurement (DC, DC rms, AC rms)
Measuring range	0 to 2000 A DC or 1400 AC rms
Autorange facility	40 A / 400 A / 2000 A
Resolution	10 mA in 40 A range 100 mA in 400 A range A in 2000 A range
Accuracy: DC and DC rms	I > 10 A					±1.5% rdg ±5 digits
	I < 10 A					±0.2 A
Accuracy: AVG	I > 10 A					±3% rdg ±5 digits
	I < 10 A					±0.5 A
Accuracy: Pk	I > 10 A					±5% rdg ±5 digits
	I < 10 A					±0.5 A
Accuracy: AHr	I > 10 A					±2% rdg ±5 digits
	I < 10 A					±0.5 AHr
Accuracy: CF (Crest Factor)	1.1 ≤ CF < 3					±3% rdg ±5 digits
	3 ≤ CF < 5					±5% rdg ±5 digits
	Resolution					0.01
Accuracy: RPL (Ripple)	2% ≤ RPL < 100%					±3% rdg ±5 digits
	100% ≤ RPL < 600%					±5% rdg ±5 digits
	Resolution					0.1%
	I DC > 5 A, I AC > 2 A
	All measurements DC and 15 Hz to 1 kHz Maximum overload 10,000 A or rms x frequency < 400,000 Amps rms is a true-rms measurement (AC + DC)
Voltage measurement (DC, DC rms, AC rms)
Measuring range	0 to 825 VDC or AC rms
Autorange facility	4 V / 40 V / 400 V / 750 V
Resolution	1 mV in 4 V range 10 mV in 40 V range 100 mV in 400 V range 1 V in 750 V range
Accuracy: DC and DC rms	V > 1 V		±1% rdg ±5 digits
	V < 1 V		±0.02 V
Accuracy: AVG	V > 1 V		±3% rdg ±5 digits
	V < 1 V		±0.03 V
Accuracy: Pk	V > 1 V		±5% rdg ±5 digits
	V < 1 V		±0.03 V
Accuracy: CF (Crest Factor)	1.1 ≤ CF < 3		±3% rdg ±5 digits
	3 ≤ CF < 5		±5% rdg ±5 digits
	Resolution		0.01
Accuracy: RPL (Ripple)	2% ≤ RPL < 100%		±3% rdg ±5 digits
	100% ≤ RPL < 600%		±5% rdg ±5 digits
	Resolution		0.1%
	VDC > 0.5 V, VAC > 0.2 V
	All measurements DC and 15 Hz to 1 kHz Maximum overload 1,000 V rms Volts rms is a true-rms measurement (AC + DC)
Harmonics
THD (Total Harmonic Distortion)	1% ≤ THD < 100%		±3% rdg ±5 digits
	100% ≤ THD < 600%		±5% rdg ±5 digits
	Resolution		0.1%
DF (Distortion Factor)	1% ≤ DF < 100%		±3% rdg ±5 digits
	Resolution		0.1%
	H02 ≤ Vharm < H13		±5% ±2 digits
	H13 ≤ Vharm ≤ H30		±10% ±2 digits
	All measurements up to 30th harmonic (40th harmonic for 15 Hz to 22 Hz) Frequency range of fundamental F0 15 Hz to 22 Hz and 45 Hz to 65 Hz Vacrms > 1V
Watts measurement (single and three-phase) (DC, DC rms, AC rms)
Measuring range	0 to 1650 kW DC or 1200 kW AC
Measuring range	4 kW, 40 kW, 400 kW, 1650 kW
Resolution	1 W in 4 kW 10 W in 40 kW 100 W in 400 kW 1 kW in 1200 kW
Accuracy	2.5% rdg ±5 digits W1Ø < 2 kW ±0.08 kW W3Ø < 4 kW ±0.25 kW
VA measurement (single- and three-phase) (DC, DC rms, AC rms)
Measuring range	0 to 1650 kVA DC or 1200 kVA AC
Autorange facility	4 kVA, 40 kVA, 400 kVA, 1650 kVA
Resolution	1 VA in 4 kVA 10 VA in 40 kVA 100 VA in 400 kVA 1 kVA in 1200 kVA
Accuracy	VA > 2 kVA			2.5% rdg ±5 digits
	VA < 2 kVA			±0.08 kVA
VAR measurement (single- and three-phase)
Measuring range	0 to 1250 kVAR
Autorange facility	4 kVAR, 40 kVAR, 400 kVAR, 1200 kVAR
Resolution	1 VAR in 4 kVAR 10 VAR in 40 kVAR 100 VAR in 400 kVAR 1 kVAR in 1200 kVAR
Accuracy	VAR > 4 kVAR				±2.5% rdg ±5 digits
	VAR < 4 kVAR				±0.25 kVAR
Power factor range	0.3 < PF < 0.99
Power factor (single- and three-phase)
Measuring range	0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive)
Resolution	0.001
Accuracy	±3°
Frequency range	15 Hz to 1 kHz
Displacement power factor (single- and three-phase)
Measuring range	0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive)
Resolution	0.001
Accuracy	±3°
Frequency range	15 Hz to 22 Hz and 45 Hz to 65 Hz
Kilowatt hour (kWHr)
Measuring range	40,000 kWHr
Autorange facility	4 kWHr, 40 kWHr, 400 kWHr, 4,000 kWHr, 40,000 kWHr
Resolution	1 WHr in 4 kWHr Range 10 WHr in 40 kWHr Range 100 WHr in 400 kWHr Range 1 kWHr in 4,000 kWHr Range 10 kWHr in 40,000 kWHr Range
Accuracy	kWHr > 2 kWHr	±3% ±5 digits
	kWHr < 2 kWHr	±0.08 kWHr
All Watts /VA /VAR /PF measurements	Frequency range	DC and 15 Hz to 1 kHz
	Current range	10 A to 1400 A rms
	Voltage range	1 V to 825 V rms
	Maximum input	825 V rms / 1400 A rms
	Maximum overload	1000 V rms / 10,000 A All measurements DC and 15 Hz to 1 kHz. Maximum overload 10,000 A or rms x frequency < 400,000
Frequency measurement (from current or voltage sources)
Measuring range	15 Hz to 1 kHz
Resolution	0.1 Hz
Accuracy	15 to 22 Hz ±0.5% rdg 40 Hz to 70 Hz ±0.5% rdg 15 Hz to 1000 Hz ±1% rdg
Current range	10 A to 1400 A rms
Voltage range	1 V to 825 V rms
Scope function
Current measurement	Range	10 A / 20 A / 40 A / 100 A / 200 A / 400 A / 1000 A / 2000 A
	Resolution	1 A in 40 A 10 A in 400 A 50 A in 2000 A
	Accuracy	±3% rdg ±1 pixel
	Maximum overload	10,000 A
Voltage measurement	Range	4 V / 10 V / 20 V / 40 V / 100 V / 200 V / 400 V / 1000 V
	Resolution	100 mV in 4 V 1 V in 40 V 10 V in 400 V 31.25 V in 1000 V
	Accuracy	±2% rdg ±1 pixel
	Maximum overload	1000 V rms
	Frequency range	DC and 15 Hz to 600 Hz
Time base	2.5 ms, 5 ms, 10 ms, 25 ms, 50 ms/div
Refresh rate	0.5 seconds
Maximum sampling rate	15.625 kHz
Inrush current function
Ranges	40 A, 400 A, and 2000 A
Resolution	10 mA in 40 A range 100 mA in 400 A range 1 A in 2000 A range
Accuracy	I > 10 A	±5% rdg ±1 pixel
	I < 10 A	±0.5 A
	All measurements DC and 15 Hz to 1 kHz
Maximum overload	Maximum overload 10,000 A or rms x frequency < 400,000 Amps rms is a true-rms measurement (AC + DC)
Capture time	1 s, 3 s, 10 s, 30 s, 100 s, and 300 s
Maximum sampling rate	15.625 kHz
Interface
USB Interface to a PC	Power Log software for download, analysis and reporting 345 Upgrade Utility for installing a new firmware version
Logging Memory
Logging areas	Three areas that can be used individually or combined into one large area
Averaging periods	1 s, 2 s, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 15 min, and custom
Logging Times
Volts and current mode	Average time	Logging time (1 area)
	1 s	1 h 49 m
	2 s	3 h 38 m
	5 s	9 h 6 m
	10 s	18 h 12 m
	30 s	2 d 6 h 36 m
	1 min	4 d 13 h 12 m
	5 min	22 d 18 h 0 m
	10 min	45 d 12 h 0 m
	15 min	68 d 6 h 0 m
		Logging time (3 areas)
	1 s	5 h 12 m
	2 s	10 h 24 m
	5 s	1 d 2 h 00 m
	10 s	2 d 4 h 00 m
	30 s	6 d 12 h 1 m
	1 min	13 d 0 h 12 m
	5 min	65 d 0 h 15 m
	10 min	130 d 0 h 30 m
	15 min	195 d 0 h 45 m
V and A harmonics mode	Average time	Logging time (1 area)
	1 s	0 h 34 m
	2 s	1 h 8 m
	5 s	2 h 52 m
	10 s	5 h 44 m
	30 s	17 h 13 m
	1 m	1 d 10 h 26 m
	5 m	7 d 4 h 10 m
	10 m	14 d 8 h 20 m
	15 m	21 d 12 h 30 m
		Logging time (3 areas)
	1 s	1 h 38 m
	2 s	3 h 16 m
	5 s	8 h 11 m
	10 s	16 h 23 m
	30 s	2 d 1 h 11 m
	1 m	4 d 2 h 23 m
	5 m	20 d 11 h 25 m
	10 m	81 d 0 h 50 m
	15 m	121 d 13 h 15 m
Single- and three-phase power mode	Average time	Logging time (1 area)
	1 s	1 h 40 m
	2 s	3 h 21 m
	5 s	8 h 22 m
	10 s	16 h 45 m
	30 s	2 d 2 h 17 m
	1 m	4 d 4 h 35 m
	5 m	20 d 22 h 55 m
	10 m	41 d 21 h 50 m
	15 m	62 d 20 h 45 m
		Logging time (3 areas)
	1 s	4 h 47 m
	2 s	9 h 34 m
	5 s	23 h 57 m
	10 s	1 d 23 h 54 m
	30 s	5 d 23 h 25 m
	1 m	11 d 23 h 25 m
	5 m	59 d 21 h 5 m
	10 m	119 d 18 h 10 m
	15 m	179 d 15 h 15 m