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Fluke 345 Power Quality Clamp Meter

Combine the functions of a power analyzer, power quality logger, scope, data logger, and clamp meter, for monitoring and troubleshooting electrical loads

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  • This clamp on meter is a combination power analyzer, power quality logger, and clamp meter, and is ideal for monitoring electronic loads.

    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.

    One of the leading wattage meters of the world, 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 wattage, 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

    The suggested single phase replacement is the Fluke 43B Power Quality Analyzer with an i3000s Current Clamp. If a 3-phase instrument is a better solution for your application, the 1735, 434 or 435 are suggested replacements.

    • AC/DC current: Clamp-on measurement of ac current up to 1400 A rms and dc current up to 2000 A without breaking the circuit
    • Highest safety rating: 600 V CAT IV power analyzer is rated for use at the service entrance
    • Accurate in noisy environments: Clamp meter performs even with distorted waveforms present on electronic loads with low-pass filter
    • Data logging: Identify intermittent faults by logging any power quality parameter for minutes, or over a month, including harmonics
    • Verify batteries: Direct measurement of dc ripple (%) for battery and dc systems
    • Troubleshoot harmonics: Analyze and log harmonics digitally or graphically
    • Inrush current: Capture and analyze nuisance tripping, from 3 seconds to 300 seconds
    • Easy to use: Easily confirm power meter setup with large backlit color display of waveforms and trends
    • 3-Phase power: Built in capability for balanced loads
    • View graphs and generate reports: Use power analyzer with included Power Log software
  • F
    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 BE345 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
    • Models
      Model Name Description  
      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
    • CarePlans
      Model Name Description  
      Fluke CarePlans Fluke Handheld Instruments CarePlans Fluke Store
    • Cases & Holsters
      Model Name Description  
      Fluke C345 Fluke C345 Soft Carrying Case Fluke Store
    • Clips
      Model Name Description  
      Fluke AC220 Fluke AC220 SureGripTM Alligator Clips Fluke Store
    • Light
      Model Name Description  
      Fluke L200 Fluke L200 Probe Light Fluke Store
    • Test Leads, Probes & Clips
      Model Name Description  
      Fluke TL175 Fluke TL175 TwistGuardTM Test Leads Fluke Store
      Fluke TP175 Fluke TP175 TwistGuardTM Test Probes Fluke Store
    • Test Probes
      Model Name Description  
      Fluke TLK291 Fluke TLK291 Fused Test Probe Set Fluke Store
      Fluke TP1 Fluke TP1 Slim Reach Test Probes Fluke Store
      Fluke TP220 Fluke TP220 SureGripTM Industrial Test Probes Fluke Store
    • Manuals
      Title  
      345 Users Manual Download
      Power Log Users Manual Download
      345 Calibration Manual Download
      345 Statement of Memory Volatility Download
      345 用户手册 Download
      345 Handleiding Download
      345 Bedienungshandbuch Download
      345 Manuale per l’uso Download
      345 Instrukcja użytkownika Download
      345 Manual do usuário Download
      345 Users Manual Download
      345 Mode d'emploi Download
      345 Manual de uso Download
      Power Log 用户手册 Download
      Power Log Bedienungshandbuch Download
      Power Log Manuale per l’uso Download
      Power Log Руководство пользователя Download
      Power Log Instrukcja użytkownika Download
      Power Log Manual do usuário Download
      Power Log Kullanım Kılavuzu Download
      Power Log Mode d'emploi Download
      Power Log Uživatelská příručka Download
      Power Log Användarhandbok Download
      Power Log Manual de uso Download
      345 Calibration Manual Supplement Download
      345 Users Manual Supplement Download
    • Brochures
      Title  
      PQ Warning Signs Brochure Download
      Fluke Power Quality Family Brochure Download
    • Case Studies
      Title  
      Case Study: Malfunctioning Traffic Light Download
      Case Study: Performing Power Quality Studies and Troubleshooting Loads Download
      Case Study: Machine Shop Motor Failures Download
      Case Study: Why Inrush Tripped an A/C System Download
    • Application Notes
      Title  
      Who sets the rules for electrical testing and safety? Download
      5th harmonic resonance Download
      Basic power quality measurements on the go with the Fluke 345 Download
      The power of a wave form: Expanded troubleshooting options with the Fluke 345 Power Quality Clamp Meter Download
      Saving energy through load balancing and load scheduling Download
      Stepping up to power quality tools Download
    • Data Sheets
      Title  
      Fluke 345 Data Sheet - English Download
      Fluke 43B Data Sheet Download
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