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  • FLUKE 1760 3-Phase Energy Logger

    # 1760

    • Three-phase power quality recorder fully compliant to IEC 61000-4-30 Class-A and consistent with compliance testing
    • Uses GPS time synchronization to correlate data with events or datasets from other instruments with precision
    • Includes comprehensive software that provides trend diagrams for root cause analysis

    Product overview: Fluke 1760 Three-Phase Energy Logger

    Class-A compliance for the most demanding power quality tests

    The Fluke 1760 Three-Phase Power Quality Recorder is fully compliant to IEC 61000-4-30 Class-A, for advanced power quality analysis and consistent compliance testing. Designed for analysis of utility and industrial power distribution systems, in medium- and low-voltage networks. The Fluke 1760 provides exceptional flexibility with the ability to customize thresholds, algorithms, and measurement selections. The 1760 power recorder captures the most comprehensive details on user-selected parameters; the supplied PQ Analyze application software enables users uses the in depth measurement and produce sophisticated analysis and reports.


    • Detailed disturbance analysis – Perform high-speed transient analysis and uncover root cause of equipment malfunction for later mitigation and predictive maintenance. The fast transient option, with its 6000 V measurement range, allows capture of very short impulses such as capacitor switching and lightning strikes.
    • Class-A quality-of-service compliance – Validate incoming power quality at the service entrance. Thanks to Class A compliance, the Fluke 1760 allows undisputable verification. The Fluke 1760 Class A compliance has been independently verified at a world leading power quality laboratory.
    • Event correlation at multiple locations – Utilizing GPS time synchronization, users can quickly detect where a fault occurred first, either inside or outside the facility. The accuracy of this time-stamping enables users with multiple 1760s on their network to understand the propagation of events across the network.
    • Galvanic separation and DC coupling – Allows complete measurements on dissimilar power systems. For example troubleshoot UPS systems by simultaneously recording the battery voltage and power output.
    • Power quality and power load studies – Assess baseline power quality to validate compatibility with critical systems before installation and verify electrical system capacity before adding loads.

    Other useful features:

    • Provides uninterrupted power supply (40 minutes) so you’ll never miss important events. Even records the beginning and end of interruptions and outages to help determine the cause
    • Provides continuous recording of voltage, current, power P, Q, S, power factor, kWh, flicker, unbalance, frequency, voltage and current harmonics to the 50th/Interharmonics, THD, and mains signaling
    • Provides 2 GB data memory to enable detailed, simultaneous recording of numerous power parameters for long periods of time
    • Includes comprehensive software that provides trend diagrams for root cause analysis, statistical summaries, report writing, and real-time data monitoring in the online mode
    • Allows quick plug and play setup with automatic sensor detection. Sensors are instrument powered, eliminating the need for batteries
    • Delivers reliable testing under nearly any conditions with rugged insulated housing and a solid state design that has no rotating components
    • Comes with four dual-range flexible current probes (1000 A/200 A AC)
    Overview of Measurement Functions
    Statistical evaluationPower quality statistics according to EN50160 and DISDIP tables like ITIC, CEBEMA, ANSI
    Event listDips, swells and interruptions are detected and stored in the event list. Also any trigger which fires generates an event added to this list.
    The Event list shows the exact time when the event occurred as well as the duration and magnitude. Sorting by several attributes of these events is possible to select one for further root cause analysis.
    RMS values, transients and fast transients can be stored if a trigger fires
    Continuous recordingFluke 1760 records rms values together with corresponding minimum and maximum values for:
    • Voltage
    • Current
    • Power P, Q, S
    • Power Factor
    • kWh
    • Flicker
    • Unbalance
    • Frequency
    • Harmonics/Interharmonics continuously with the following time aggregations: Day, 10 min, Free Interval, e.g.: 15 min, 2 h
    Triggered recordingsrmsAggregation time is adjustable between 10 ms (1/2 cycle), 20 ms (1 cycle), 200 ms (10/12 cycles) or 3 sec (150/180 cycles).
    Calculating rms values, Harmonics and Interharmonics is performed synchronous to the power frequency.
    Basic aggregation for harmonics and interharmonics is 200 ms
    Sample rate is 10.24 kHz for all 8 channels
    Mains signallingPhases and N-conductor, Voltage and current
    Online modeVariable refresh rate. This feature allows verification of instrument set up and delivers a quick overview of oscilloscope, transients and events.
    General Data
    Intrinsic uncertaintyrefers to reference conditions and is guaranteed for two years
    Quality systemdeveloped, manufactured as per ISO 9001: 2000
    Environment conditionsOperating temp. range0°C to +50°C; 32°F to +122°F
    Working temp. range-20°C to +50°C; -4°F to +122°F
    Storage temp. range20°C to +60°C; -4°F to 140°F
    Reference temperature23°C ±2 K; 74°F ±2 K
    Climatic classB2 (IEC 654-1), -20°C to +50°C; -4°F to +122°F
    Max. operating altitude2000 m: max. 600 V CAT IV1
    power supply: 300 V CAT III 5000 m: max 600 V CAT III1
    power supply: 300 V CAT II
    1. Depending on sensor
    Reference conditionsEnvironment temperature23°C ±2 K ; 74°F ±2 K
    Power supply230 V ±10%
    Power frequency50 Hz / 60 Hz
    Signaldeclared input voltage Udin
    Averaging10 minute intervals
    HousingInsulated, robust plastics housing
    EMCEmissionClass-A as per IEC/EN 61326-1
    ImmunityIEC/EN 61326-1
    Power supplyRangeAC: 83 V to 264 V, 45 to 65 Hz
    DC: 100 V to 375 V
    SafetyIEC/EN 61010-1 2nd edition
    300 V CAT III
    Power consumptionNIMH, 7.2 V, 2.7 Ah
    Battery packIn case of a power supply failure an internal battery maintains the supply for up to 40 minutes. Afterwards, or in case of discharged accumulators the Fluke 1760 is turned off and continues the measurements with the latest settings as soon as the supply voltage returns. The battery can be replaced by the user.
    DisplayFluke 1760 features LED indicators for the status of the 8 channels, phase sequence, power supply (mains or accumulator), memory usage, time synchronization, and data transfer.
    Power LEDPermanent light: normal power supply from mains.
    OFF: supply via internal accumulator in case of a power failure.
    Channel LEDs 3-color LEDs per channel forOverload condition
    Under load condition
    Data memory2 GB Flash memory
    Memory modelLinear
    InterfacesEthernet (100 MB/s), compatible to Windows® XP, 7 and 8, RS 232, external modem via RS 232
    Baud rate for RS 2329600 Baud to 115 kBaud
    Dimensions (H x W x D)325 x 300 x 65 mm; 2.8 x 11.8 x 2.6 in
    Weightappr. 4.9 kg; 10.8 lbs (without accessories)
    Warranty2 years
    Calibration interval1 year recommended for Class-A, otherwise 2 years
    Signal Conditioning
    Range for 50 Hz systems50 Hz ±15% (42.5 Hz to 57.5 Hz)
    Range for 60 Hz systems60 Hz ±15% (51 Hz to 69 Hz)
    Resolution16 ppm
    Sampling frequency for 50 Hz power frequency10.24 kHz, The sampling rate is synchronized to mains frequency.
    Uncertainty for frequency measurements< 20 ppm
    Uncertainty of internal clock< 1 s / day
    Measurement intervalsAggregation of the interval values as per IEC 61000-4-30 Class-A
    Min-, Max-valuesHalf cycle, e.g.: 10 ms rms values at 50Hz
    TransientsSample rate 100 kHz to 10 MHz per channel
    Harmonicsas per IEC 61000-4-7:2002: 200 ms
    Flickeras per EN 61000-4-15:2003: 10 min (Pst), 2 h (Plt)
    Measurement Inputs
    Number of inputs8 galvanically isolated inputs for voltage and current measurements.
    Sensor safetyup to 600 V CAT IV depending on sensor
    Basic safety300 V CAT III
    Nominal voltage (rms)100 mV
    Range (peak value)280 mV
    Overload capacity (rms)1000 V, continuously
    Voltage rise ratemax. 15 kV / µs
    Input resistance1 MΩ
    Input capacitance5 pF
    Input filterEach channel is equipped with a passive low-pass filter, an anti-aliasing filter and a 16-bit A/D converter. All channels are sampled synchronously with a common quartz-controlled clock pulse.
    The filters protect against voltage transients and limit the signal rise rate, reduce high frequency components and especially the noise voltage above half the sampling rate of the A/D converter by 80 dB, thus achieving very small measuring errors in an exceptionally large amplitude range. This is also valid under extreme operating conditions like transient voltages at the output of converters.
    Uncertainty at reference conditionsUncertainty including the voltage sensors is in compliance with IEC 61000-4-30 Class-A. All voltage sensors are suitable for DC up to 5 kHz
    With Sensor 1000 V0,1% at Udin = 480 V and 600 V P-N
    Sensor 600 V0,1% at Udin = 230 V P-N
    Intrinsic uncertainty for harmonicsClass I as per EN 61000-4-7:2002
    Reference conditions23°C ±2 K < 60% rH; 74°F ±2 K < 60% rH
    Warmed up instrument > 3h
    Power supply: 100 V to 250 V AC
    Temperature drift100 ppm / K
    Aging< 0.05% / year
    Common mode rejection> 100 dB at 50 Hz
    Temperature driftChange of amplification through temperature: < 0.005%/K
    AgingChange of amplification due to ageing: < 0.04%/year
    NoiseNoise voltage, input short-circuited: < 40 µV
    DC±(0.2% rdg + 0.1% sensor)
    • Input-channels (4 currents/4 voltages or 8 voltages)
    • Internal Flash-memory 2 GB
    • PQ Analyze software on CD-ROM
    • Ethernet cable for network connection (1)
    • Crosslink Ethernet cable for direct PC connection (1)
    • Mains cable (1)
    • Operational manuals
    • Carrying bag
    • Voltage probes, qty 4 (600 V for INTL set, 1000 V for US set)
    • Current probes, qty 4 (Dual-range flexible current probes 1000 A / 200 A AC)
    • GPS time sync receiver

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