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

Comprehensive Power Quality Measurements: Measures a wide range of power quality parameters.
User-Friendly Interface: Intuitive touchscreen for easy operation.
Flexible Connectivity: USB, Wi-Fi, and Ethernet connectivity options.
Powerful Analysis Software: In-depth analysis, reporting, and trend identification.
Rugged and Reliable Design: Built to withstand harsh environments.

Description
Additional information
Specifications

Description

The Fluke 1742, 1746, and 1748 are a trio of advanced power quality loggers designed to help you diagnose, quantify, and resolve power quality issues. These robust and versatile tools are indispensable for electrical engineers, technicians, and facility managers who strive for reliable and efficient electrical systems.

Key Features and Benefits:

Comprehensive Power Quality Measurements: All three models provide a wide range of measurements, including:
Voltage and current waveforms
Power, power factor, and energy consumption
Harmonics and interharmonics
Unbalance, flicker, and rapid voltage changes
Power quality disturbances and transients
User-Friendly Interface: The intuitive, color touchscreen interface makes setup, data review, and analysis a breeze.
Flexible Connectivity: With USB, Wi-Fi, and Ethernet connectivity, you can seamlessly transfer data and monitor remotely.
Powerful Analysis Software: The included Energy Analyze Plus software empowers you with in-depth analysis, detailed reporting, trend identification, and root cause analysis.
Rugged and Reliable Design: Built to withstand harsh environments, these loggers are durable and reliable.

Model-Specific Capabilities:

Fluke 1742: Ideal for basic power quality assessments and energy audits. It measures fundamental parameters like voltage, current, power, power factor, and energy consumption.
Fluke 1746: Offers advanced power quality logging capabilities, including harmonic and interharmonic analysis, unbalance measurements, and flicker measurements. It’s perfect for more
complex power quality investigations.
Fluke 1748: The top-tier model delivers the most comprehensive set of power quality measurements, including detailed waveform capture, advanced harmonic analysis, and power disturbance recording. It’s the go-to choice for critical power systems and in-depth troubleshooting.

Additional information

Brand	Fluke

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

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 P_LT, P_ST		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 E_a
Apparent power S	0 ≤ PF ≤ 1	1.2% + 0.005%	1.2% + 0.0075%	1.7% + 0.0075%	1.2% + 0.005%
Apparent Energy E_ap
Reactive power Q	0 ≤ PF ≤ 1	2.5% of measured apparent power
Reactive Energy E_r
Power Factor PF	–	±0.025
Displacement Power
Factor DPF/cosΦ
Additional uncertainty in% of range	V_P-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 detailsReference 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
Voltage range	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
Harmonics	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
Input voltage	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
Enclosure	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