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Fluke 1738 Advanced Power Logger

The Fluke 1738 power logger is ideal for conducting energy studies and more advanced power quality analysis.

Overview
Features
Specs
Models
Accessories
Resources
  • Available December, 2015

    Comprehensive power quality and energy studies - get the data you need to make critical decisions in real-time

    The Fluke 1738 Three-Phase Advanced Power Logger built with Fluke Connect® mobile app and desktop software compatibility gives you the data you need to make critical power quality and energy decisions in real-time. Like the Fluke 1736 Power Logger, the 1738 Advanced Power Logger automatically captures and logs over 500 power quality parameters while also allowing you to troubleshoot more advanced power quality issues. Perform advanced analysis with an enhanced Power Quality Health Summary (EN50160) function that provides you with fast insight into overall electrical system health. The Power Quality Health Summary is based on detailed power quality data including viewable event waveform captures so you have even more visibility into the data you need to optimize system reliability and savings.

    An optimized user interface, flexible current probes, and an intelligent measurement verification function that allows you to reduce measurement errors by digitally verifying and correcting common connection errors makes setup easier than ever and reduces measurement uncertainty. Access and share data remotely with your team via the Fluke Connect® app, or access your logger through your facilities WiFi infrastructure so you can maintain safer working distances and make critical decisions in real-time, reducing the need for protective equipment, site visits and check-ins. You can also quickly and easily chart and graph measurements to help identify issues and create detailed reports with the included Fluke Energy Analyze Plus software package. Optionally, you can create IEEE519 Reports giving you more insight into harmonic levels, voltage and current distortion, and load current (license required).

    The Fluke 1738 is the ideal test tool for conducting energy studies and more advanced power quality logging.

  • Key measurements: Automaticall­y capture and log voltage, current, power, harmonics and associated power quality values.

    Fluke Connect® compatible*: View data locally on the instrument, via Fluke Connect mobile app and desktop software or through your facilities WiFi infrastructure.

    Convenient instrument powering: Power instrument directly from the measured circuit.

    Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance and downstream.

    Measure all three phases and neutral: With included 4 flexible current probes.

    Comprehensive logging: More than 20 separate logging sessions can be stored on the instruments. In fact, all measured values are automatically logged so you never loose measurement trends. They can even be reviewed during logging sessions and before downloading for real-time analysis.

    Capture dips, swells, and inrush currents: Includes event waveform snapshot and high resolution RMS profile, along with date, timestamp and severity to help pinpoint potential root causes of power quality issues.

    Power Quality Health Summary: Summarizes the most important power quality health parameters to provide fast insight into overall electrical system health, indicating whether more detailed analysis and reporting should be done.

    Bright, color touch screen: Perform convenient in-the-field analysis and data checks with full graphical display.

    Optimized user interface: Capture the right data every time with quick, guided, graphical setup and reduce uncertainty about your connections with the intelligent verification function.

    Complete “in-the-field" setup through the front panel or Fluke Connect App: No need to return to the workshop for download and setup or to take a computer to the electrical panel.

    Fully integrated logging: Connect other Fluke Connect devices to the Fluke 1738 to simultaneously log up to two other measurement parameters, virtually any parameter available on a Fluke Connect wireless digital multimeter.*

    Energy Analyze Plus application software: Download and analyze every detail of energy consumption and power quality state of health with our automated reporting.

  • Specifications
    Accuracy
    Parameter Range Resolution Intrinsic Accuracy at Reference Conditions (% of Reading +% of Full Scale)
    Voltage 1000 V 0.1 V ±(0.2% + 0.01%)
    Current: Direct input i17xx-flex 1500 12" 150 A 0.1 A ±(1% + 0.02%)
    1500 A 1 A ±(1% + 0.02%)
    i17xx-flex 3000 24" 300 A 1 A ±(1% + 0.03%)
    3000 A 10 A ±(1% + 0.03%)
    i17xx-flex 6000 36" 600 A 1 A ±(1.5% + 0.03%)
    6000 A 10 A ±(1.5% + 0.03%)
    i40s-EL clamp 4 A 1 mA ±(0.7% + 0.02%)
    40 A 10 mA ±(0.7% + 0.02%)
    Frequency 42.5 Hz to 69 Hz 0.01 Hz ±(0.1%)
    Auxillary input ±10 V dc 0.1 mV ±(0.2% + 0.02%)
    Voltage min/max 1000 V 0.1 V ±(1% + 0.1%)
    Current min/max Defined by accessory Defined by accessory ±(5% + 0.2%)
    THD on voltage 1000% 0.1% ±0.5
    THD on current 1000% 0.1% ±0.5
    Voltage harmonics 2nd to 50th 1000 V 0.1 V ≥ 10 V: ±5% of reading
    < 10 V: ±0.5V
    Current harmonics 2nd to 50th Defined by accessory Defined by accessory ≥ 3% of current range: ±5% of reading
    < 3% of current range: ±0.15% of range
    Unbalance 100% 0.1% ±0.2
    Intrinsic Uncertainty ±(% of reading +% of range)¹
    Parameter Influence quantity iFlex1500-12 iFlex3000-24 iFlex6000-36 i40S-EL
    150 A / 1500 A 300 A / 3000 A 600 A / 6000 A 4 A / 40 A
    Active Power P
    PF ≥ 0.99 1.2% + 0.005% 1.2% + 0.0075% 1.7% + 0.0075% 1.2% + 0.005%
    Active Energy Ea PF ≥ 0.99 1.2% + 0.005% 1.2% + 0.0075% 1.7% + 0.0075% 1.2% + 0.005%
    Apparent power S 0 ≤ PF ≤ 1 1.2% + 0.005% 1.2% + 0.0075% 1.7% + 0.0075% 1.2% + 0.005%
    Apparent Energy Eap 0 ≤ PF ≤ 1 1.2% + 0.005% 1.2% + 0.0075% 1.7% + 0.0075% 1.2% + 0.005%
    Reactive power Q 0 ≤ PF ≤ 1 2.5% of measured apparent power
    Reactive Energy Er 0 ≤ PF ≤ 1 2.5% of measured apparent power
    Power Factor PF - ±0.025
    Displacement Power Factor - ±0.025
    DBF/cosϕ - ±0.025
    Additional uncertainty in% of range¹ VP-N>250 V 0.015% 0.0225% 0.0225% 0.015%
    ¹Range = 1000 V x Irange
    Reference conditions:
    • Environmental: 23 °C ±5 °C, instrument operating for at least 30 minutes, no external electrical/magnetic field, RH <65%
    • Input conditions: Cosϕ/PF=1, Sinusoidal signal f=50 Hz/60 Hz, power supply 120 V/230 V ±10%.
    • Current and power specifications: Input voltage 1 ph: 120 V/230 V or 3 ph wye/delta: 230 V/400 V Input current: I > 10% of Irange
    • Primary conductor of clamps or Rogowski coil in center position
    • Temperature coefficient: Add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C

    Electrical Specifications
    Power Supply
    Voltage range 100 V to 500 V using safety plug input when powering from the measurement circuit
    100 V to 240 V using standard power cord (IEC 60320 C7)
    Power consumption Maximum 50 VA (max. 15 VA when powered using IEC 60320 input)
    Efficiency ≥ 68.2% (in accordance with energy efficiency regulations)
    Maximum no-load consumption < 0.3 W only when powered using IEC 60320 input
    Mains power frequency 50/60 Hz ±15%
    Battery Li-ion 3.7 V, 9.25 Wh, customer-replaceable
    On-battery runtime Four hours in standard operating mode, up to 5.5 hours in power saving mode
    Charging time < 6 hours
    Data Acquisition
    Resolution 16-bit synchronous sampling
    Sampling frequency 10.24 kHz at 50/60 Hz, synchronized to mains frequency
    Input signal frequency 50/60 Hz (42.5 to 69 Hz)
    Circuit types 1-φ, 1-φ IT, Split phase, 3-φ delta, 3-φ wye, 3-φ wye IT, 3-φ wye balanced, 3-φ Aron/Blondel (2-element delta), 3-φ delta open leg, Currents only (load studies)
    Data storage Internal flash memory (not user replaceable)
    Memory size Typical 10 logging sessions of 8 weeks with 1-minute intervals and 500 events¹
    ¹The number of possible logging sessions and logging period depends on user requirements.
    Basic Interval
    Measured parameters Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy
    Averaging interval User selectable: 1 sec, 5 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min, 15 min, 30 min
    Averaging time min/max values Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30 Aux, Power: 200ms
    Demand Interval (Energy Meter Mode)
    Measured parameters Energy (Wh, varh, VAh), PF, maximum demand, cost of energy
    Interval User selectable: 5 min, 10 min, 15 min, 20 min, 30 min, off
    Power Quality Measurements
    Measured parameter Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD
    Averaging interval 10 min
    Individual harmonics 2nd to 50th harmonic
    Total harmonic distortion Calculated on 50 harmonics
    Events Voltage: dips, swells, interruptions, current: inrush current
    Triggered recordings Full cycle RMS updated every half cycle of voltage and current (Urms1/2 according to IEC61000-4-30)
    Waveform of voltage and current
    Standards Compliance
    Harmonics IEC 61000-4-7: Class 1
    IEEE 519 (short time harmonics)
    Power quality IEC 61000-4-30 Class S, IEC62586-1 (PQI-S device)
    Power IEEE 1459
    Power quality compliance EN50160 (for measured parameters)
    Interfaces
    USB-A File transfer via USB flash drive, firmware updates
    Max. current: 120 mA
    WiFi File transfer and remote control via direct connection or WiFi infrastructure
    Bluetooth Read auxiliary measurement data from Fluke Connect® 3000 series modules (requires 1738 or 1736 upgrade option)
    USB-mini Data download device to PC
    Voltage Inputs
    Number of inputs 4 (3 phases and neutral)
    Maximum input voltage 1000 Vrms, CF 1.7
    Input impedance 10 MΩ
    Bandwidth (-3 dB) 42.5 Hz - 3.5 kHz
    Scaling 1:1 and variable
    Measurement category 1000 V CAT III/600 V CAT IV
    Current Inputs
    Number of inputs 4, mode selected automatically for attached sensor
    Input voltage Clamp input: 500 mVrms/50 mVrms; CF 2.8
    Rogowski coil input 150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range
    Range 1 A to 150 A/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12"
    3 A to 300 A/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24"
    6 A to 600 A/60 A to 6000 A with thin flexible current probe i17XX-flex6000 36"
    40 mA to 4 A/0.4 A to 40 A with 40 A clamp i40s-EL
    Bandwidth (-3 dB) 42.5 Hz - 3.5 kHz
    Scaling 1:1 and variable
    Auxiliary Inputs
    Number of inputs 2
    Input range 0 to ±10 V dc, 1reading/s
    Scale factor (available 2014) Format: mx + b (gain and offset) user configurable
    Displayed units (available 2014) User configurable (7 characters, for example, °C, psi, or m/s)
    Wireless Connection
    Number of inputs 2
    Supported modules Fluke Connect® 3000 series
    Acquisition 1 reading/s
    Environmental Specifications
    Operating temperature -10 °C to +50 °C (14 °F to 122 °F)
    Storage temperature -20 °C to +60 °C (-4 °F to 140 °F), with battery: -20 °C to +50 °C (-4 °F to 122 °F)
    Operating humidity 10 °C to 30 °C (50 °F to 86 °F) max. 95% RH
    30 °C to 40 °C (86 °F to 104 °F) max. 75% RH
    40 °C to 50 °C (104 °F to 122 °F) max. 45% RH
    Operating altitude 2000 m (up to 4000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV)
    Storage altitude 12,000m
    Enclosure IP50 in accordance with EN60529
    Vibration MIL-T-28800E, Type 3, Class III, Style B
    Safety IEC 61010-1
    IEC Mains Input: Overvoltage Category II, Pollution Degree 2
    Voltage Terminals: Overvoltage Category IV, Pollution Degree 2
    IEC 61010-2-031: CAT IV 600 V / CAT III 1000 V
    Electromagnetic compatibility EN 61326-1: Industrial CISPR 11: Group 1, Class A
    Korea (KCC): Class A Equipment (industrial broadcasting and communication equipment)
    USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103
    Temperature coefficient 0.1 x accuracy specification/°C
    General Specifications
    Color LCD display 4.3-inch active matrix TFT, 480 pixels x 272 pixels, resistive touch panel
    Warranty Instrument and power supply: Two-years (battery not included)
    Accessories: one-year
    Calibration cycle: two-years
    Dimensions Instrument: 19.8 cm x 16.7 cm x 5.5 cm (7.8 in x 6.6 in x 2.2 in)
    Power supply: 13.0 cm x 13.0 cm x 4.5 cm (5.1 in x 5.1 in x 1.8 in)
    Instrument with power supply attached: 19.8 cm x 16.7 cm x 9 cm (7.8 in x 6.6 in x 3.5 in)
    Weight Instrument: 1.1 kg (2.5 lb)
    Power supply: 400 g (0.9 lb)
    Tamper protection Kensington lock slot
    i17xx-flex 1500 12" Flexible Current Probe Specifications
    Measuring range 1 to 150 A ac/10 to 1500 A ac
    Nondestructive current 100 kA (50/60 Hz)
    Intrinsic error at reference condition* ±0.7% of reading
    Accuracy 173x + iFlex ±(1% of reading + 0.02% of range)
    Temperature coefficient over operating temperature range 0.05% of reading/°C 0.09% of reading/°F
    Working voltage 1000 V CAT III, 600 V CAT IV
    Probe cable length 305 mm (12 in)
    Probe cable diameter 7.5 mm (0.3 in)
    Minimum bending radius 38 mm (1.5 in)
    Output cable length 2 m (6.6 ft)
    Weight 115 g
    Probe cable material TPR
    Coupling material POM + ABS/PC
    Output cable TPR/PVC
    Operating temperature -20 °C to +70 °C (-4 °F to 158 °F) temperature of conductor under test shall not exceed 80 °C (176 °F)
    Temperature, non-operating -40 °C to +80 °C (-40 °F to 176 °F)
    Relative humidity, operating 15% to 85% non-condensing
    IP rating IEC 60529:IP50
    Warranty One-year
    * Reference condition:
    • Environmental: 23 °C ±5 °C, no external electrical/magnetic field, RH 65%
    • Primary conductor in center position
    • Models
      Model Name Description  
      Fluke 1738/B Fluke 1738/B Advanced Power Logger
        Portable Advanced Power Logger (excludes current probes)
      Fluke 1738/EUS Fluke 1738/EUS Advanced Power Logger
        Portable Advanced Power Logger EU/US Version
      Fluke 1738/INTL Fluke 1738/INTL Advanced Power Logger
        Portable Advanced Power Logger International Version
      Fluke 1738/WINTL Fluke 1738/WINTL Advanced Power Logger
        Portable Advanced Logger International Version (with additional power cables)
  •  Product Registration

    • Manuals
      Title  
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Download
      1736/1738 Users Manual Supplement Download
      1730, 1732, 1734, 1736, 1738, 3450 CE Declaration of Conformity Download
      1736/1738 Calibration Manual Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      1736/1738 Safety Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      Auxiliary Input Adapter for the 17xx Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
      MP1 Magnet Probe Instruction Sheet Download
    • Application Notes
      Title  
      4 Steps to take after power quality data has been collected Download
      6 Things you need to do before making power quality measurements Download
      A guide to 30 day load studies with Fluke Power and Energy Loggers Download
      Harmonics Standards: What are they and how can you use them? Download
    • Data Sheets
      Title  
      Fluke 1736 and 1738 Three-Phase Power Loggers Data Sheet Download