Fluke 345 Power Quality Clamp Meter - Electronic Power Meter

Fluke 345 Power Quality Clamp Meter - Electronic Power Meter is rated 4.5 out of 5 by 4.
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  • Fluke 345 Power Quality Clamp Meter
Discontinued

Key features

  • Combines the functions of a power analyzer, power quality logger, scope, data logger, and clamp meter in one handy tool
  • Measures AC current to 1400 A RMS and DC current to 2000 A without breaking the circuit
  • Carries the highest safety rating: 600 V CAT IV rated for use at the service entrance
This product is discontinued or reclassified

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
DisplayColor transmissive LCD 320 x 240 pixels (70 mm diagonal) with 2 level backlight
Power supplyBattery 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 Input110/230 V 50/60 Hz
Output15 VDC, 300 mA
Ambient conditions (for indoor use only)
Reference conditionsAll accuracies stated at 23°C ±1°C (73.4°F ±1.8°F)
Operating temperature0°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 humidity80% for temperatures up to 31°C (87°F) decreasing linearly to 50% relative humidity at 40°C (104°F)
Maximum operating altitude2000 m
Electrical safety
Maximum safe working voltagesSafety IEC 61010-1 600 V CAT IV double or reinforced insulation, pollution degree 2
Protection IP40; EN60529
Current measurement600 VAC rms or DC between uninsulated conductor and ground
Voltage measurement600 VAC rms or DC between either input terminal and ground, or 825 V between energized phase voltages (delta power config.)
EMC
EmissionIEC/EN 61326-1:1997 A
ImmunityIEC/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 batteries820 g (1.8 lb)
Jaw opening60 mm
Jaw capacity58 mm diameter
CleaningThe unit can be cleaned with an Isopropanol impregnated cloth. Do not use abrasives or other solvents.
Electrical data
Accuracy23°C ±1°C (73.4°F ±1.8°F). See Ambient conditions specifications for temperature coefficients.
Current measurement (DC, DC rms, AC rms)
Measuring range0 to 2000 A DC or 1400 AC rms
Autorange facility40 A / 400 A / 2000 A
Resolution10 mA in 40 A range
100 mA in 400 A range
A in 2000 A range
Accuracy: DC and DC rmsI > 10 A±1.5% rdg ±5 digits
I < 10 A±0.2 A
Accuracy: AVGI > 10 A±3% rdg ±5 digits
I < 10 A±0.5 A
Accuracy: PkI > 10 A±5% rdg ±5 digits
I < 10 A±0.5 A
Accuracy: AHrI > 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
Resolution0.01
Accuracy: RPL (Ripple)2% ≤ RPL < 100% ±3% rdg ±5 digits
100% ≤ RPL < 600%±5% rdg ±5 digits
Resolution0.1%
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 range0 to 825 VDC or AC rms
Autorange facility4 V / 40 V / 400 V / 750 V
Resolution1 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 rmsV > 1 V±1% rdg ±5 digits
V < 1 V±0.02 V
Accuracy: AVGV > 1 V±3% rdg ±5 digits
V < 1 V±0.03 V
Accuracy: PkV > 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
Resolution0.01
Accuracy: RPL (Ripple)2% ≤ RPL < 100%±3% rdg ±5 digits
100% ≤ RPL < 600%±5% rdg ±5 digits
Resolution0.1%
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
Resolution0.1%
DF (Distortion Factor)1% ≤ DF < 100%±3% rdg ±5 digits
Resolution0.1%
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 range0 to 1650 kW DC or 1200 kW AC
Measuring range4 kW, 40 kW, 400 kW, 1650 kW
Resolution1 W in 4 kW
10 W in 40 kW
100 W in 400 kW
1 kW in 1200 kW
Accuracy2.5% 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 range0 to 1650 kVA DC or 1200 kVA AC
Autorange facility4 kVA, 40 kVA, 400 kVA, 1650 kVA
Resolution1 VA in 4 kVA
10 VA in 40 kVA
100 VA in 400 kVA
1 kVA in 1200 kVA
AccuracyVA > 2 kVA2.5% rdg ±5 digits
VA < 2 kVA±0.08 kVA
VAR measurement (single- and three-phase)
Measuring range0 to 1250 kVAR
Autorange facility4 kVAR, 40 kVAR, 400 kVAR, 1200 kVAR
Resolution1 VAR in 4 kVAR
10 VAR in 40 kVAR
100 VAR in 400 kVAR
1 kVAR in 1200 kVAR
AccuracyVAR > 4 kVAR±2.5% rdg ±5 digits
VAR < 4 kVAR±0.25 kVAR
Power factor range0.3 < PF < 0.99
Power factor (single- and three-phase)
Measuring range0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive)
Resolution0.001
Accuracy±3°
Frequency range15 Hz to 1 kHz
Displacement power factor (single- and three-phase)
Measuring range0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive)
Resolution0.001
Accuracy±3°
Frequency range15 Hz to 22 Hz and 45 Hz to 65 Hz
Kilowatt hour (kWHr)
Measuring range40,000 kWHr
Autorange facility4 kWHr, 40 kWHr, 400 kWHr, 4,000 kWHr, 40,000 kWHr
Resolution1 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
AccuracykWHr > 2 kWHr±3% ±5 digits
kWHr < 2 kWHr±0.08 kWHr
All Watts /VA /VAR /PF measurementsFrequency rangeDC and 15 Hz to 1 kHz
Current range10 A to 1400 A rms
Voltage range1 V to 825 V rms
Maximum input825 V rms / 1400 A rms
Maximum overload1000 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 range15 Hz to 1 kHz
Resolution0.1 Hz
Accuracy15 to 22 Hz ±0.5% rdg
40 Hz to 70 Hz ±0.5% rdg
15 Hz to 1000 Hz ±1% rdg
Current range10 A to 1400 A rms
Voltage range1 V to 825 V rms
Scope function
Current measurementRange10 A / 20 A / 40 A / 100 A / 200 A / 400 A / 1000 A / 2000 A
Resolution1 A in 40 A
10 A in 400 A
50 A in 2000 A
Accuracy±3% rdg ±1 pixel
Maximum overload10,000 A
Voltage measurementRange4 V / 10 V / 20 V / 40 V / 100 V / 200 V / 400 V / 1000 V
Resolution100 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 overload1000 V rms
Frequency rangeDC and 15 Hz to 600 Hz
Time base2.5 ms, 5 ms, 10 ms, 25 ms, 50 ms/div
Refresh rate0.5 seconds
Maximum sampling rate15.625 kHz
Inrush current function
Ranges40 A, 400 A, and 2000 A
Resolution10 mA in 40 A range
100 mA in 400 A range
1 A in 2000 A range
AccuracyI > 10 A±5% rdg ±1 pixel
I < 10 A±0.5 A
All measurements DC and 15 Hz to 1 kHz
Maximum overloadMaximum overload 10,000 A or rms x frequency < 400,000
Amps rms is a true-rms measurement (AC + DC)
Capture time1 s, 3 s, 10 s, 30 s, 100 s, and 300 s
Maximum sampling rate15.625 kHz
Interface
USB Interface to a PCPower Log software for download, analysis and reporting
345 Upgrade Utility for installing a new firmware version
Logging Memory
Logging areasThree areas that can be used individually or combined into one large area
Averaging periods1 s, 2 s, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 15 min, and custom
Logging Times
Volts and current modeAverage timeLogging time (1 area)
1 s1 h 49 m
2 s3 h 38 m
5 s9 h 6 m
10 s18 h 12 m
30 s2 d 6 h 36 m
1 min4 d 13 h 12 m
5 min22 d 18 h 0 m
10 min45 d 12 h 0 m
15 min68 d 6 h 0 m
 Logging time (3 areas)
1 s5 h 12 m
2 s10 h 24 m
5 s1 d 2 h 00 m
10 s2 d 4 h 00 m
30 s6 d 12 h 1 m
1 min13 d 0 h 12 m
5 min65 d 0 h 15 m
10 min130 d 0 h 30 m
15 min195 d 0 h 45 m
V and A harmonics modeAverage timeLogging time (1 area)
1 s0 h 34 m
2 s1 h 8 m
5 s2 h 52 m
10 s5 h 44 m
30 s17 h 13 m
1 m1 d 10 h 26 m
5 m7 d 4 h 10 m
10 m14 d 8 h 20 m
15 m21 d 12 h 30 m
 Logging time (3 areas)
1 s1 h 38 m
2 s3 h 16 m
5 s8 h 11 m
10 s16 h 23 m
30 s2 d 1 h 11 m
1 m4 d 2 h 23 m
5 m20 d 11 h 25 m
10 m81 d 0 h 50 m
15 m121 d 13 h 15 m
Single- and three-phase power modeAverage timeLogging time (1 area)
1 s1 h 40 m
2 s3 h 21 m
5 s8 h 22 m
10 s16 h 45 m
30 s2 d 2 h 17 m
1 m4 d 4 h 35 m
5 m20 d 22 h 55 m
10 m41 d 21 h 50 m
15 m62 d 20 h 45 m
 Logging time (3 areas)
1 s4 h 47 m
2 s9 h 34 m
5 s23 h 57 m
10 s1 d 23 h 54 m
30 s5 d 23 h 25 m
1 m11 d 23 h 25 m
5 m59 d 21 h 5 m
10 m119 d 18 h 10 m
15 m179 d 15 h 15 m

Models: Fluke 345 Power Quality Clamp Meter - Electronic Power Meter

Fluke 345
Fluke 345 Power Quality Clamp Meter

Includes:

  • 345 Power Quality Clamp Meter
  • Soft carrying case
  • Power Log software
  • Test leads
  • Alligator clips
  • Test probes
  • USB cable
  • International ac adapter / battery eliminator
  • Printed English language user manual
  • Multi-language manual CD
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Rated 3 out of 5 by from Nice but no practical It is a power meter with basical measurements and logging capabilities, but the jaws design makes it almost impossible to use in tight areas, like meter enclosures or switchgears. I will be more practical (and easy to see) if we could select the appropriate current probe like additional accesory for the workload like the discontinued Fluke 43B. The price is also too high and the energy values is more useful if they are measured like received and delivered. Net values is like the performance of electromechanical watthourmeters. And the electric utilities meters have separated energy counting registers. And this is not a genuine Fluke Product, is a LEM Analyst product with some advantages.
Date published: 2020-11-08
Rated 5 out of 5 by from Easy to use, very robust Very robust construction. Bright display. No manual needed. Easy to operate. I used this meter to check inrush current, and we assemble industrial motor controls and the measuring instrument is a great help thanks to the triggerable monitoring. It has a simple basic oscilloscope in it, but it fits the purpose perfectly. And plenty of service is in your hands on the field. Very good product. I recomend this meter.
Date published: 2020-04-28
Rated 5 out of 5 by from Handy and Very Usefull Tool! I purchased the 345 to resolve a bunch of issues associated with variable frequency drive installations. The meter work flawlessly and really shortened our troubleshooting time. Rock Solid Piece of Equipment
Date published: 2016-12-08
Rated 5 out of 5 by from Excellent tool for PQ checks and 3 phase metering I purchased this meter to check power quality at our facility and found it to be one of the most powerful tools I have ever purchased. Its scope function was a complete surprise and is useful in finding flat topping issues and can even be used to check encoders on the side. The power quality features are top notch with full bar style graph showing noise level by harmonic frequency making troubleshooting quick and easy. The 3 phase power feature is very easy to use a well and makes testing a breeze. The ability to capture and share screen shots, the very nice color display, large clamp opening and extremely intuitive menus make this one of the most valuable and easy tools ever.
Date published: 2016-12-07
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