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Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers
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Personal Greeting

The Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers give you fast, easy access to the data you need to make critical power quality and energy decisions in real-time. With the included Energy Analyse Plus software package you can easily create detailed reports.

Upgrade according to future needs

The Fluke 1748 logs over 500 different parameters for each averaging period. This allows you to analyze power quality in detail and to correlate intermittent events with detailed waveform data, helping to identify the root cause of disturbances. For basic power quality logging, the Fluke 1746 captures all relevant power parameters for performing energy saving studies and electrical network planning with a full upgrade option to 1748 available. For simple load and energy studies the Fluke 1742 offers optimal performance in a rugged package and can be upgraded to 1746, or complete 1748, functionality.

National and international standards

Compact and rugged, the Fluke 1740 Series Three-Phase Power Quality Loggers are designed specifically for technicians and engineers who need the flexibility to troubleshoot, quantify energy usage and analyze power distribution systems. Fully compliant with international power quality standards such as IEC 61000-4-30 Class A and capable of simultaneously logging up to 500 parameters while also capturing events, the Fluke 1740 Series helps uncover intermittent and hard-to-find power quality issues more easily than ever. Energy Analyze Plus software quickly assesses the quality of power at the service entrance, substation, or at the load, according to national and international standards including EN 50160 and IEEE 519.

An optimized user interface, flexible current probes, and an intelligent measurement verification function that allows you to digitally verify and correct connections makes setup easier than ever and reduces measurement uncertainty. Minimize your time in potentially hazardous environments and reduce the hassle of suiting up in PPE by using a wireless connection (Wi-Fi) to view data directly in the field.

Analysis and reporting

Capturing logged data is just one part of the task. Once you have the data, you need to create useful information and reports that can be easily shared and understood by your organization or customers. Fluke Energy Analyse Plus software makes that task as simple as possible. With powerful analysis tools and the ability to create customized reports in minutes you’ll be able to communicate your findings and quickly solve problems so you can optimize system reliability and savings. A range of built-in report templates for industry standards such as EN 50160, IEEE 519 and GOST enable one-click reporting so you can create high quality reports at the touch of a button. Reports can be modified as standards evolve, or new versions become available.

Which power logger is right for you?

Features 1742 1746 1748
Functions
Voltage, current, power, power factor, frequency • • •
Energy forward/reverse • • •
Peak Demand • • •
THD • • •
Flicker • • •
Voltage and current harmonics (to 50th)1   • •
Unbalance1   • •
Rapid voltage change events1   • •
Interharmonics (to 50th)1   • •
Dips, swells, interruption and transient events tables1   • •
Inrush current1   • •
Transients (low frequency) / Waveform deviation events2     •
Recording
Trend • • •
Waveform snapshots2     •
RMS profile2     •
Communication
Ethernet • • •
USB (mini B) • • •
Wi-Fi download Instrument to device • • •
Wi-Fi download via Wi-Fi hub (free with registration) Opt. Opt. Opt.
Included accessories
Flexible current probe not /B version not /B version not /B version
USB stick • • •
USB cable • • •
3PHVL-17XX cable assembly • • •
FLUKE-17XX-TL 0.18M test lead set • • •
FLUKE-17XX-TL 2M test lead set • • •
Alligator clips 4 4 4
173x/174x Soft Case • • •
Cable marker kit • • •
MP1-3R/1B-Magnet Probe 1 set (3 red, 1 black) Opt. 1 1
174x-Hanger Kit Opt. Opt. •

Software Features

  • "In-workshop" or "in-the-field" setup and download through PC application software: simple download using USB memory stick, Wi-Fi download, wired Ethernet connection or via USB cable.
  • Energy Analyse Plus application software: Download and analyze every measured detail of energy consumption and power quality state-of-health with automated reporting.
  • One-touch reporting: Create standardized reports according to commonly used standards like EN 50160, IEEE 519, GOST 33073 or export data in PQDIF or NeQual compatible format for use with third party software.
  • Advanced analysis: Choose any available logged parameter to create a highly customized view of logged measurements for advanced correlation of data.

Hardware Features

  • Measure all three voltage and current phases plus the neutral current: Three-phase and neutral voltage leads and four flexible current probes or optional current clamps for CT secondary current.
  • Comprehensive logging: More than 20 separate logging sessions can be stored in the instrument. A comprehensive range of power and power quality variables are automatically logged so you never lose measurement trends.
  • Measure with premium accuracy: Meets the rigorous IEC 61000-4-30 Class A Edition 3 standard for ‘Testing and measurement techniques–Power quality measurement methods.'
  • Capture dips, swells and interruptions: The 1748 includes event waveform capture and RMS event profile, along with date, timestamp and severity information to help pinpoint potential root causes of power quality issues.
  • Measure key power quality parameters: Measures harmonics and interharmonics for voltage and current, also includes unbalance, flicker and rapid voltage changes.
  • Optimized user interface: Capture the right data every time with quick, guided, graphical PC based application setup and reduce uncertainty about your connections with an intelligent verification feature and the only auto-correction function for a power quality logger. Connection errors are automatically indicated via an amber light on the unit’s power button, this light turns green once corrected.
  • Optimized user interface: Quick, guided, graphical setup ensures you’re capturing the right data every time, and the intelligent verification function indicates correct connections have been made, reducing user uncertainty.
  • Flexible power supply: Powers directly from the measured circuit with the widest available range for a power quality logger automatically going from 100 V to 500 V or from a wall line cord, so you can test anywhere.
  • Rugged and reliable: Designed to withstand harsh installation environments with IP65 rating when used with IP65 voltage input adapter.
  • Two external USB ports: One for PC connection and another for quick, simple data download to standard USB thumb drives, allowing you to leave the measurement device in place and download without disrupting logging.
  • Ethernet connectivity: Wired and wireless connections for instrument setup and high-speed data download.
  • Compact size: Designed to fit in tight spaces and panels with small 23 cm x 18 cm x 5.4 cm (9.1 in x 7.1 in x 2.1 in) footprint.
  • Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance and downstream.
  • Optimized measurement accessories: Unique tangle-free flat voltage cable and thin flexible current probes ensure easy installation even in tight spaces.
  • Battery life: Four-hour operating time (backup time) per charge on lithium-ion battery to withstand temporary power disruptions.
  • Security: Safeguard your best asset from theft with a standard chain or other security device.
  • Magnetic hanger kit: Conveniently stow the instrument safely inside or outside of electrical panels; compatible with all models and included with 1748 model as standard.

The Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers are the best tools to troubleshoot, quantify energy usage and analyze power distribution systems in a fast, easy and safe way.

  • Measure key power quality parameters: Measures harmonics and interharmonics for voltage and current, also includes unbalance, flicker and rapid voltage changes.
  • Measure with premium accuracy: Meets the rigorous IEC 61000-4-30 Class A Edition 3 standard for ‘Testing and measurement techniques–Power quality measurement methods.'
  • One-touch reporting: Create standardized reports according to commonly used standards like EN 50160, IEEE 519, GOST 33073 or export data in PQDIF or NeQual compatible format for use with third party software using the included Fluke Energy Analyze Plus Software.
Specifications
Accuracy
Parameter Range Maximum Resolution Intrinsic Accuracy at Reference Conditions (% of Reading +% of Range)
Voltage 1000 V 0.1 V ±0.1 % of nominal voltage 1, 2
Current: Direct input i17xx-flex 1500IP 24 1500 A 150 A 0.01 A (min. 1.5A)3 ±(1% + 0.02%)
1500 A 0.1 A
i17xx-flex 3000IP 24 3000 A 300 A 0.01 A (min. 3.0 A)3 ±(1% + 0.03%)
3000 A 0.1 A
i17xx-flex 6000IP 36 6000 A 600 A 0.01 A (min. 6.0 A)3 ±(1.5% + 0.03%)
6000 A 0.1 A
i40s-EL clamp 4 A 1 mA ±(0.7% + 0.02%)
40 A 10 mA
Frequency 42.5 Hz to 69 Hz 0.01 Hz ±(0.1%)2
Auxiliary input ±10 V dc 0.1 mV ±(0.2% + 0.02%)
Voltage min/max 1000 V 0.1 V ±0.2 % of nominal input voltage1
Current min/max Defined by accessory Defined by accessory ±(5% + 0.2%)
THD on voltage 1000% 0.10% ± 2.5%
THD on current 1000% 0.10% ± 2.5%
Voltage harmonics 2nd to 50th 1000 V 0.1 V ≥ 1 V: ±5% of reading
< 1 V: ±0.05V
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
Flicker PLT, PST 0 to 20 0.01 5%
Current probe accuracy
Parameter Influence quantity iFlex1500IP-24 iFlex3000IP-24  iFlex6000IP-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
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
Reactive power Q 0 ≤ PF ≤ 1 2.5% of measured apparent power
Reactive Energy Er
Power Factor PF - ±0.025
Displacement Power
Factor DPF/cosΦ
Additional uncertainty in% of range VP-N>250 V 0.015% 0.023% 0.023% 0.015%
1 In the range of 100 V … 500 V; also known as Udin
2 0 °C … 45 °C: Intrinsic accuracy x 2, outside of 0 °C … 45 °C: Intrinsic accuracy x 3
3 Consult operators manual for details

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 I range
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 MA-C8 and using standard power cord (IEC 60320 C7)
Power consumption Maximum 50 VA (max. 15 VA when powered using MA-C8 adapter)
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 Typically 4 hours
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-Φwye 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 20 logging sessions of 4 weeks with 1-minute intervals and 500 events
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, voltage interharmonics, TID V, current interharmonics, TID A, Flicker, Mains Signaling, under/over deviation
Averaging interval 10 min for all parameters
2 hrs (long term Flicker PLT)
150/180 cycles (3 s) for harmonics (requires software license IEEE519/REPORT)
Individual harmonics 2nd to 50th harmonic
Grouping according to IEC 61000-4-7 user configurable depending on application: Sub-grouped (harmonics + interharmonics), grouped or harmonic bins only
Interharmonics 1st to the 50th interharmonic
Total harmonic distortion Calculated on 50 voltage harmonics
Events Voltage: dips, swells, interruptions, current: inrush current
1748: mains signaling, transients (low frequency)
Triggered recordings RMS profile: Full cycle RMS updated every half cycle of voltage and current up to 11 s (URMS1/2 according to IEC 61000-4-30)
Waveform of voltage and current up to 200 ms, 10/12 cycles
Mains signaling: 10/12 cycle RMS recording of the configured frequencies up to 120s
Inrush RMS profile based on 1/2 cycle RMS steady state triggering
Flicker In accordance with IEC 61000-4-15 and IEEE 1453
Mains signaling Two user defined frequencies up to 3 kHz
PQ Health Summarizes power quality measurements in one table. Detailed data available for each parameter
EN 50160 Compliance with standard
Programmable PQ limits Enables user defined limits for local standards compliance
Standards Compliance
Harmonics IEC 61000-4-7: Class 1
IEEE 519 (short time and very short time harmonics)
Power quality IEC 61000-4-30 Class A, IEC 62586-1, IEC 62586-2 (PQI-A-PI device)
Power IEEE 1459
Power quality compliance EN 50160
Safety General: IEC 61010-1: Pollution Degree 2
Measurement: IEC 61010-2-033: CAT IV 600 V / CAT III 1000 V
Power Supply: Overvoltage Category IV, Pollution Degree 2
Li-ion Battery: IEC 62133
Interfaces
USB-A File transfer via USB flash drive, firmware updates, max. supply current: 120 mA
Wi-Fi (free with product registration) File transfer and remote control via direct connection or Wi-Fi infrastructure
Bluetooth Read auxiliary measurement data from Fluke Connect® 3000 series modules (requires supported USB to BLE or Wi-Fi/BLE adapter, check for availability)
USB-mini Data download device to PC
Voltage Inputs
Number of inputs 4 (3 phases referenced to neutral)
Maximum input voltage 1000 Vrms, CF 1.7
Input impedance 10 MΩ
Bandwidth 42.5 Hz to 3.5 kHz
Scaling 1:1 and variable
Measurement category 1000 V CAT III/600 V CAT IV
Current Inputs
Number of inputs 4 (3 phases and neutral), 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 IP 24
3 A to 300 A/30 A to 3000 A with thin flexible current probe i17XX-flex3000 IP 24
6 A to 600 A/60 A to 6000 A with thin flexible current probe i17XX-flex6000 IP 36
40 mA to 4 A/0.4 A to 40 A with 40 A clamp i40s-EL
Bandwidth 42.5 Hz - 3.5 kHz
Scaling 1:1 and variable
Auxiliary Inputs
Number of inputs 2 (Analog with auxiliary adapter, or up to 2 BLE devices simultaneously)
Input range 0 to ± 10 V dc, or 0 to ± 1000 V dc (with optional adapter), 1 reading/s
Scale factor Format: mx + b (gain and offset) user configurable
Displayed units User configurable (7 characters, for example, °C, psi, or m/s)
Wireless Bluetooth connection (check for availability)
Number of inputs 2
Supported modules Fluke Connect® 3000 series
Acquisition 1 reading/s
Environmental Specifications
Operating temperature -25 °C to +50 °C (-13 °F to 122 °F)1
Storage temperature Without battery: -25 °C to +60 °C (-13 °F to 140 °F), with battery: -20 °C to +50 °C (−4 °F to 122 °F)
Operating humidity IEC 60721-3-3: 3K6:
-25 °C to +30 °C (-13 °F to +86 °F): ≤ 100 %
40 °C (104 °F): 55 %
50 °C (122 °F): 35 %
Operating altitude 2000 m (up to 4000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV)
Storage altitude 12,000 m
Enclosure IEC 60529: IP50
IEC 60529: IP65 with IP65 rated voltage connector
Vibration IEC 60721-3-3 / 3M2
Electromagnetic compatibility (EMC) EN 61326-1: Industrial CISPR 11: Group 1, Class A
IEC 61000-6-5 Power station environment
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
General Specifications
Warranty Two-years (battery not included)
Accessories: one-year
Calibration cycle: two-years
Dimensions 23.0 cm x 18.0 cm x 5.4 cm (9.1 in x 7.1 in x 2.1 in)
Weight Instrument: 1 kg (2.2 lb)
Tamper protection Accept securing cables (max. Φ 6mm)
1Warm up the product to -10 °C (+14 °F) before you power the unit on
i17XX-FLEX1.5KIP Flexible Current Probe Specifications
Measuring range 1 to 150 A ac/10 to 1500 A ac
Probe cable length 610 mm (24 in)
Probe cable diameter 7.5 mm (0.3 in)
Weight 170 g (0.38 lb)
Minimum bending radius 38 mm (1.5 in)
Nondestructive current 100 kA (50/60 Hz)
Temperature coefficient over
operating temperature range		 0.05 % of reading/°C (0.028 % of reading/°F)
Working voltage 1000 V CAT III, 600 V CAT IV
Output cable length 2.0 m (6.5 ft)
Probe cable material TPR
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: IP65
Warranty One-year

Models: Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers

Fluke-1742/15/EUS

Fluke 1742/15/EUS Power quality logger with 24in/60cm 1,500A iFlex current probes, EU/US Version

Fluke-1742/30/EUS

Fluke 1742/30/EUS Power quality logger with 24in/60cm 3,000A iFlex current probes, EU/US Version

Fluke-1742/B/EUS

Fluke 1742/B/EUS Power quality logger without iFlex current probes, EU/US Version

Fluke-1746/15/EUS

Fluke 1746/15/EUS Power quality logger with 24in/60cm 1,500A iFlex current probes, EU/US version

Fluke-1746/30/EUS

Fluke 1746/30/EUS Power quality logger with 24in/60cm 3,000A iFlex current probes, EU/US version

Fluke-1746/B/EUS

Fluke 1746/B/EUS Power quality logger without iFlex current probes, EU/US version

Fluke-1748/15/EUS

Fluke 1748/15/EUS Power quality logger with 24in/60cm 1,500A iFlex current probes, EU/US version

Fluke-1748/30/EUS

Fluke 1748/30/EUS Power quality logger with 24in/60cm 3,000A iFlex current probes, EU/US version

Fluke-1748/B/EUS

Fluke 1748/B/EUS Power quality logger without iFlex current probes, EU/US Version

Power quality logger without iFlex current probes, international version

Accessories: Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers

Test leads, probes and clips 

Fluke 3PHVL-1730 Cable Assembly, Voltage Test Lead

Fluke FTP17XXPQ Fused Test Probes Set

Current clamps and probes 

Fluke 17XX i40s-EL Clamp-on Current Transformers

Fluke 17XX i40s-EL Clamp-on Current Transformers 3 pack

Fluke i17XX-flex1500 iFlex® Current Clamp

Fluke i17XX-flex1500/3pk iFlex® Current Clamps

Fluke i17XX-flex1500/4pk iFlex® Current Clamps

Fluke i17XX-flex3000 iFlex® Current Clamp

Fluke i17XX-flex3000/3pk iFlex® Current Clamps

Fluke i17XX-flex3000/4pk iFlex® Current Clamp

Fluke i17XX-flex6000/3pk iFlex® Current Clamp

Fluke i17XX-flex6000/4pk iFlex® Current Clamp