Fluke 1750-TF Three-Phase Power Quality Recorder

  • Fluke 1750-TF Three-Phase Power Quality Recorder | Fluke

Key features

  • Power quality that meets the standard All measurements comply with IEC61000-4-30 standards for correct evaluation of all measured values including voltage, current, power, harmonics, flicker etc.
  • Quick and reliable configuration A tablet computer provides a window into what the instrument is recording, enabling quick and reliable configuration even in awkward test locations
  • Threshold-free set up Apply thresholds after data is collected with Fluke Power Analyze Software – no need to worry about missed information due to incorrect setups
  • Captures everything Cross-channel and current triggering capture every measurement, on every channel, every time
  • Intuitive PC software Easily analyze data and generate reports with automated EN50160 reporting and compliance
  • Reporting has never been easier Auto Report creates either standard reports or customized reports with the minimum effort or hassle. Export reports to almost any format including RTF (Rich Text Format) for editing in Microsoft Word.
  • Plug and play Set up in minutes with self-identifying current probes and single-lead voltage connections
  • No need to reconnect wires Swap channels internally with the wireless PDA or PC when connections are not correct
  • Measure every parameter Voltage and current on three phases, neutral, and ground
  • 5 MHz, 8000 Vpk waveform capture Get a detailed picture of even the shortest events
  • Quickly retrieve data With included SD memory card or via the 100 BaseT high-speed Ethernet connection. SD card includes automatic download to SD when no other connection is made to the instrument
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Product overview

Record every power quality parameter, every cycle, all the time

Setting up a power quality analyzer to capture detailed power quality data has never been easier that it is with the Fluke 1750. The only things you need to know are the system voltage, frequency and the power configuration (delta or wye). The analyzer then captures the most important data for up to 30 days without losing the most important details. These power meters automatically record every power quality parameter and event, on every cycle – all the time. Once the data is captured download via Ethernet or directly to 2GB SD card (without the need of any other device). The Fluke 1750 features a wireless front panel for viewing measurements, data and setting up, implemented via a tablet computer using Bluetooth communication.


  • Long-term analysis: Uncover hard-to-find or intermittent issues; monitor critical equipment, capturing power quality events to correlate with equipment malfunction
  • Power quality surveys: Quantify power quality throughout a facility, documenting results with professional reports
  • Quality of service compliance: Validate incoming power quality at the service entrance
  • Equipment Installation/Commissioning: Benchmark: power system prior to install to insure quality of service
    • Long-Term Analysis – Uncover hard-to-find or intermittent issues.
    • Load Studies – Verify the available electrical system capacity before adding loads.


Fluke 1750-TF
Fluke 1750-TF Three-Phase Power Quality Recorder
4 – 1,000A 3210-PR- TF iFlex flexible current probe


  • 1750 acquisition unit
  • 1750 handheld tablet
  • 5 Test leads and clips
  • 2GB SD Memory card (larger cards not compatible)
  • Fluke Power View and Fluke Power Analyze software
  • Power cord with international plug set
  • Ethernet cable
  • Color localization set
  • Printed Getting Started manual
  • Product CD with software and user manual PDF
  • CS 1750/1760 Rugged transit softcase


Technical Specifications
Power quality measurement standardsConformanceIEC 61999-1-4 Class 1, IEC 61000-4-30 Class A, S or B depending on measurement function, IEEE519, IEEE1159, IEEE1459 and EN50160
Clock/calendarLeap years, 24-hour clock
Real-time clock accuracyNot more than ±1 s/day
Internal memory capacity for dataAt least 2 GB
Maximum recording periodAt least 31 days
Measurement time controlAutomatic
Maximum number of eventsLimited only by the size of the internal memory
Power requirements100 to 240 Vrms ±10%, 47-63 Hz, 40 W
Operating time during interruptions (internal UPS operation)5 minutes per interruption, 60 minutes total operating time without recharging
Dimensions215 x 310 x 35 mm (8.5 x 12.2 x 3.5 in)
Mass (weight)6.3 kg (14 lb)
InputMeasurement typesOne Phase Plus Neutral, One Phase IT No Neutral, One Phase Split Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three Phase High Leg, Three Phase Open Leg, 2 Element Delta, 21/2 Element Wye
Input channelsVoltage: 4 channels, AC/DC
Current: 5 channels
Voltage channelsInput resistance: 2 MΩ
Input capacitance: < 20 pF
Current input characteristics2 Vrms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs
Measuring methodSimultaneous digital sampling of voltage and current. Digital PLL synchronized sampling, internal frequency reference used during voltage drops.
Synchronization and samplingPLL-synchronization sourceThe PLL synchronizes to the A-N voltage for wye power types, and to the A-B voltage for delta power types. All listed power types can be characterized as either wye or delta.
PLL lock range42.5 to 69 Hz
Sampling frequencyVoltage and current: 256 samples/cycle Inter-harmonics per IEC 61000-4-7: 2560 points / 10 cycles (50 Hz), 3072 points / 12 cycles (60 Hz) Transient Voltage: 5 MHz
A/D resolutionVoltage and current: 24 bits
Transient voltage: 14 bits
Voltage and current measurementsVoltage measurement rangeAC voltage: 1000 Vrms ±10% over range
DC voltage: ±1000 V + 10% over range
Voltage crest factor3 or less
Current measurement rangeDepends on current probe used
Current crest factor4 or less
RMS voltageMeasurement typeTrue RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by IEC 61000-4-30.
Measurement uncertaintyAC: ±0.2% reading ±0.1% full scale, above 50 Vrms
DC: ±0.5% reading ±0.2% full scale, above 50 VDC
RMS currentMeasurement typeTrue RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards
Transient voltage (impulse)Measurement typeWaveshape sampling
Full scale8000 V pk
Sample resolution200 nS
Measurement uncertainty±5% reading ±20 V (test parameters: 1000 VDC, 1000 Vrms, 100 kHz)
Voltage swell (rms swell)Measurement typeTrue RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines)
Displayed dataAmplitude and duration of swell
MeasurementSame as rms voltage
Voltage dip (rms sag)Measurement typeTrue RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines)
Displayed dataAmplitude and duration of dip or interruption
MeasurementSame as rms voltage
Voltage dropout (interruption)Measurement typeSame as voltage dip
LAN interfaceConnectorRJ-45
Speed and type10/100 Base-T, auto MDIX
Communications protocolTCP/IP over Ethernet
Wireless controller interfaceConnectionwireless (2.4 GHz radio)
Speedup to 700 kbit/second
Communications protocolBluetooth SPP
Power Measurements
Power, battery lifeMeasurement typeTrue RMS calculated continuously: every cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards
FrequencyMeasurement range42.5 to 69 Hz
Measurement sourceSame as PLL synchronization source
Measurement accuracy±10 mHz (10 to 110% of range, with sine wave)
Power factorMeasurement range0.000 to 1.000
Measurement accuracy±1 digit from the calculation of each measured value (±3 digits for total)
Displacement power factorMeasurement methodCalculated from the phase difference between voltage fundamental and current fundamental
Measurement range- 1.000 (leading) to + 1.000 (lagging)
Measurement accuracy±0.5% reading ±2% full scale ±1 digit
Voltage unbalance and phase sequenceMeasurement methodPositive sequence voltage divided by negative sequence voltage, per IEC 61000-4-30
Harmonic voltage and currentAnalysis windowrectangular
Analysis order1st to 50th order
Measurement accuracyVoltage / Current: 1st to 20th orders: ±0.5% reading ±0.2% full scale, 21st to 50th orders: ±1% reading ±0.3% full scale (current sensor accuracy must be included for current and power)
Measurement methodIEC 61000-4-7
Inter-harmonic voltage and current (intermediate harmonics)Analysis windowrectangular
Analysis orders1.5 to 49.5th order
Measurement methodIEC 61000-4-7
FlickerMeasurement methodIEC 61000-4-15
Plt for 2 hours and Pst for 10 minutes
Measuring range0, 1 to 5 (25) depending on voltage level, modulation and frequency
Environmental Specifications
EnvironmentalOperating environmentIndoors or in covered area outdoors, up to 2000 m altitude
Storage temperature and humidity-20°C to 50°C, 80% RH max, non-condensing
Operating temperature and humidity0°C to 40°C, 80% RH max, non-condensing
Maximum rated working voltageVoltage terminals1100 Vrms
Voltage durability5550 Vrms AC for 1 minute, between voltage input terminals, voltage input terminals and current probes, and voltage input terminals and case (50/60 Hz, 1 mA sense current)
Enclosure protectionIP30 (per EN 60529)
StandardsEMCEN 61326-1:1997+A1:1998 Class A
EN 61000-3-2:1995+A1:1998+A2:1998
EN 61000-3-3:1995
SafetyEN 61010-1 2 nd Edition; 2 000
Voltage input unit: Contamination Level 2 , Overvoltage Category 1000 V CAT III, 600 V CAT IV (anticipated overvoltage: 8000 V)


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