Name: Fluke 1742, 1746 and 1748 three-phase Power Quality Loggers
SKU: 832
Availability: InStock

Easy installation

Installing the power meter is easier than ever and reduces measurement uncertainty thanks to an optimised user interface, flexible current clamps and an intelligent measurement monitoring function that allows you to check and correct connections digitally. Via a Wi-Fi connection, you view data directly on site. This not only reduces the time spent in a potentially hazardous environment, but also eliminates the ‘hassle’ of donning personal protective equipment.

Which Power Quality Logger is best for you?

Registration	1742	1746	1748
Energy	-	-	-
Basic measurements for mains power quality	Optional	-	-
Advanced measurements for mains power quality	Optional	Optional	-

The Fluke 1748 power meter logs more than 500 different parameters for each averaging period. This allows you to analyse power quality in detail and link intermittent events to detailed waveform data to identify the root cause of faults. The Fluke 1746 power meter captures all relevant power parameters for basic recording of mains power quality, for the purpose of energy-saving surveys and electrical network planning, with the option of a full upgrade to a 1748 power meter. For simple load and energy surveys, the Fluke 1742 power meter offers optimum performance in a rugged package. The 1742 can be upgraded to the 1746 or to the full functionality of the 1748. Want to know more about the options? Our experts will be happy to help you when you call +32 (0)14 24 44 60.

Hardware functions

Measure the three voltage and current phases plus the neutral: Three-phase and zero voltage cables and four flexible current clamps.
Comprehensive logging function: More than 20 individual log sessions can be stored in the instrument. A wide range of current and power quality variables are automatically recorded, so you won't miss a single measurement trend.
Measuring with very high accuracy: Meets the stringent standard IEC 61000-4-30 Class A, Edition 3 for ‘Test and measurement techniques: methods for measuring mains power quality’.
Capture voltage fluctuations and interruptions: The 1748 contains snapshots of event waveforms and an RMS event profile, along with the date, timestamp and event severity information, to identify possible root causes of mains power quality problems.
Measurement of key mains power quality parameters: Measurement of harmonics and interharmonics for voltage and current, including unbalance, flicker and rapid voltage changes.
Optimised user interface: Always capture correct data with a fast, interactive graphical PC installer and remove uncertainty about connections with the intelligent verification function and the only automatic correction function available for a Power Quality Logger. Connection errors are automatically indicated by an orange light on the unit's power button, which turns green once the error has been corrected.
Optimised user interface: Quick, graphical settings for which additional information is available allow you to capture the right data every time, and the intelligent monitoring function ensures that the right connections have been made, reducing user uncertainty
Flexible feeding: Switches on directly from the measured circuit with the most extensive range available for a Power Quality Logger (automatically from 100 V to 500 V), or switches on with a power cable for a wall outlet, so you can test anywhere.
Robust and reliable: Designed for demanding installation environments with degree of protection IP65 when used with IP65 voltage input adapter.
Two external USB ports: One for connection to a PC and another for quick and easy downloading of data to a standard USB stick or other USB devices, allowing you to leave the measuring instrument in place without interrupting the logging function.
Ethernet connectivity: Wired and wireless connections for instrument installation and fast data download.
Compact dimensions: With its modest size of 23 cm x 18 cm x 5.4 cm (9.1 inches x 7.1 inches x 2.1 inches), it fits into small spaces and dividers.
Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III approved for service input and downstream circuits.
Optimised measurement accessories: Unique flat power cable that cannot get tangled and thin, flexible current clamps make installation easy even in tight spaces.
Battery life: Operating time of four hours (backup time) per charge on a lithium-ion battery, to cope with temporary power failures.
Security: Protect your valuable property from theft with a standard security chain or other security.
Magnetic hanging clip set: Quickly and safely store the instrument in or outside electrical dividers. Suitable for all models and supplied as standard with the 1748 model.

Software features

Settings and downloading for “In-workshop” or “In-the-Field” via the PC application software: Easy downloading using USB stick, wifi download, Ethernet cable connection or via USB cable.
Application software Energy Analyze Plus: Download and analyse every measured detail of energy consumption and power quality condition with automatic reports.
Reports at the touch of a button: Create standard reports according to common standards such as EN 50160, IEEE 519, GOST 33073 or export data in a PQDIF or NeQual-compatible format for use with third-party software.
Advanced analysis: Choose from all available logged parameters to create a customised display of logged measurements for advanced data linking.

Which Power Quality Logger is right for you?

Features	1742 Power Quality Loggers	1746 Power Quality Loggers	1748 Power Quality Loggers
Features
Voltage, current, power, power factor, frequency	-	-	-
Energy forward/backward	-	-	-
Peak consumption	-	-	-
Total harmonic distortion (THD)	-	-	-
Flicker	-	-	-
Voltage and current harmonics (up to the 50th)¹		-	-
Imbalance¹		-	-
Rapid voltage changes¹		-	-
Interharmonics (up to the 50th)¹		-	-
Event tables showing dips, rises, breaks and transients¹		-	-
Inrush current¹		-	-
Transients (low frequency)/waveform changes²			-
Registration
Trend	-	-	-
Snapshots of waveforms²			-
RMS profile²			-
Communications
Ethernet	-	-	-
USB (mini B)	-	-	-
Downloading with Wi-Fi - instrument to device	-	-	-
Downloading with Wi-Fi via Wi-Fi hub (registration required)	Opt.	Opt.	Opt.
Accessories included
Flexible current clamp	non-B version	non-B version	non-B version
USB stick	-	-	-
USB cable	-	-	-
3PHVL-1730 3-phase + measuring lead rated voltage	-	-	-
Test lead set red/black 0.18 m	-	-	-
Test leads set red/black 1.5 m	-	-	-
Crocodile clips	4	4	4
173x/174x carrying case	-	-	-
Cable marking set	-	-	-
MP1-3R/1B magnet probe 1 set (3 red, 1 black)	Opt.	1	1
174x pendant set	Opt.	Opt.	-

¹Supplied with 1742-6/UPGRADE option
²Supplied with 1742-8/UPGRADE or 1746-8/UPGRADE option

Specifications
Accuracy
Parameter		Reach	Maximum resolution	Intrinsic accuracy under reference conditions (% of reading + % of range)
Tension		1000 V	0,1 V	±0.1 % of rated voltage^{1, 2}
Power: 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 rated input voltage¹
Current, min/max		Defined by accessory	Defined by accessory	±(5% + 0.2%)
Total harmonic distortion (THD) of the voltage		1000%	0,10%	± 2.5%
Total harmonic distortion of the current		1000%	0,10%	± 2.5%
Voltage harmonics 2nd to 50th		1000 V	0,1 V	≥ 1 V: ±5% of measured value
				< 1 V: ±0.05V
Current harmonics 2nd to 50th		Defined by accessory	Defined by accessory	≥ 3% of current range: ±5% of measurement
				< 3% of current range: ±0.15% of range
Flicker P _LT, P_ST		0 to 20	0,01	5%
Current clamp accuracy
Parameter	Influence magnitude	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
Labour factor PF	-	±0,025
Shift
factor (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 100 V ... 500 V; also known as Udin ² 0 °C ... 45 °C: intrinsic accuracy x 2, outside 0 °C ... 45 °C: intrinsic accuracy x 3 ³ Please refer to the user manual for more information Reference conditions: environment: 23 °C ± 5 °C, instrument operated for at least 30 minutes, no external electric/magnetic field, RH <65 % Input conditions: Cosφ/PF=1, sine signal f=50 Hz/60 Hz, power supply 120 V/230 V ±10 %. Current and power specifications: input voltage 1 phase: 120 V/230 V or 3 phase star/delta: 230 V/400 V Input current: I > 10 % of I range Primary conductor of current clamps or Rogowski coil in the centre Temperature coefficient: add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C

Electrical specifications
Nutrition
Voltage range	100 V to 500 V using protected plug-in input when current from the measured circuit is used
Voltage range	100 V to 240 V MA-C8 when using standard power cord (IEC 60320 C7)
Power consumption	Maximum 50 VA (max. 15 VA when connected to MA-C8 adapter)
Efficiency	≥ 68.2% (in accordance with energy efficiency rules)
Maximum consumption without load	< 0.3 W only when current is used via IEC 60320 input
Mains frequency	50/60 Hz ±15%
Battery	Li-ion 3.7 V, 9.25 Wh, customer-replaceable
Battery life	Normally four hours
Charging time	< 6 hours
Data acquisition
Resolution	16-bit synchronous sampling
Sample frequency	10.24 kHz at 50/60 Hz, synchronised with frequency of mains supply
Input signal frequency	50/60 Hz (42.5 to 69 Hz)
Circuit types	1- Φ, 1- Φ IT, split phase, 3- Φ triangle, 3- Φ star, 3- Φ star IT, 3- Φ star symmetrical, 3- Φ Aron/Blondel (2-element triangle), 3- Φ triangle open lay, flows only (load studies)
Data storage	Internal Flash memory (cannot be replaced by the user)
Memory	Normal 20 log sessions of 4 weeks with 1-minute intervals and 500 events
Base interval
Measured parameters	Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy
Average interval	User-selectable: 1 sec, 5 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min, 15 min, 30 min
Average time for minimum/maximum values	Voltage, current: RMS full cycle updated every half cycle (URMS 1/2 according to IEC61000-4-30 Aux, power: 200ms)
Requirement interval (Energy meter mode)
Measured parameters	Energy (Wh, varh, VAh), PF maximum requirement, energy cost
Interval	User-selectable: 5 min, 10 min, 15 min, 20 min, 30 min, off
Measurements mains power quality
Measured parameter	Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD, voltage harmonics, TID V, current harmonics, TID A, flicker, mains signalling (signals superimposed on mains voltage), excessive/small deviation
Average interval	10 min for all parameters 2 hours (prolonged flicker PLT) 150/180 cycles (3 s) for harmonics (requires IEEE519/REPORT software licence)
Individual harmonics	2nd to 50th harmonics Grouping according to IEC 61000-4-7 user-configurable depending on application: with subgroups (harmonics + interharmonics), grouped or only harmonic bins
Interharmonischen	1st to 50th interharmonic
Total harmonic distortion	Calculated at 50 voltage harmonics
Events	Voltage: decreases, increases, interruptions, current: inrush current 1748: signals superimposed on mains voltage, transients (low frequency)
Triggered registrations	RMS profile: Full RMS cycle every half voltage and current cycle updated to 11 s (URMS1/2 in accordance with IEC 61000-4-30)
	Waveform of voltage and current up to 200 ms, 10/12 cycles
	Signal superimposed on mains voltage: 10/12-cycle RMS recording of configured frequencies up to max. 120s
Inrush current	RMS profile based on RMS of 1/2 cycle with stable triggering
Flicker	Compliant with IEC 61000-4-15 and IEEE 1453
Signals superimposed on the mains voltage (mains signalling)	Two user-defined frequencies up to 3 kHz
PQ quality	Summary of mains power quality in one table. Detailed data available for each parameter
EN 50160	Compliance with standard
Programmable PQ limits	Enables user-defined limits for compliance with local standards
Compliance with standards
Harmonischen	IEC 61000-4-7: Class 1
Harmonischen	IEEE 519 (short and very short harmonics)
Mains power quality	IEC 61000-4-30 class A, IEC 62586-1, IEC 62586-2 (PQI-A-PI device)
Nutrition	IEEE 1459
Network 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 Power supply current: 120 mA
WiFi	File transfer and remote control via direct connection or WiFi
Bluetooth	Reading additional measurement data from Fluke Connect® 3000 series modules (USB to BLE or WiFi/BLE adapter support required, check availability)
USB mini	Downloading data to PC
Voltage inputs
Number of inputs	4 (3 phases to neutral)
Maximum input voltage	1000 Vrms, CF 1.7
Input impedance	10 MΩ
Bandwidth	42.5 Hz to 3.5 kHz
Scale setting	1:1 and variable
Measurement category	1000 V CAT III/600 V CAT IV
Power inputs
Number of inputs	4 (3 phases and neutral), mode is automatically selected for connected sensor
Input voltage	Terminal input: 500 mVrms/50 mVrms; CF 2.8
Input voltage	Rogowski coil input150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range
Reach	1 A to 150 A/10 A to 1500 A with thin flexible current clamp i17XX-flex1500 IP 24
	3 A to 300 A/30 A to 3000 A with thin flexible current clamp i17XX-flex3000 IP 24
	6 A to 600 A/60 A to 6000 A with thin flexible current clamp i17XX-flex6000 IP 36
	40 mA to 4 A/0.4 A to 40 A with 40 A terminal i40s-EL
Bandwidth	42.5 Hz - 3.5 kHz
Scale setting	1:1 and variable
Auxiliary inputs
Number of inputs	2 (analogue with auxiliary adapter, or max. 2 BLE devices simultaneously)
Input range	0 to ± 10 V dc, or 0 to ± 1000 V dc (with optional adapter), 1 readout/s
Scale factor	Format: mx + b (gain and deviation) user-configurable
Displayed units	User-configurable (7 characters, e.g. °C, psi, or m/s)
Bluetooth wireless connectivity (check availability)
Number of inputs	2
Supported modules	Fluke Connect® 3000 series
Acquisition	1 measurement/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)
Relative humidity during operation	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 height	2000 m (maximum 4000 m reduce to 1000 V CAT II/600 V CAT III/300 V CAT IV)
Height when stored	12.000 m
Housing	IEC 60529: IP50
Housing	IEC 60529: IP65 with IP65 certified voltage connector
Vibration resistance	IEC 60721-3-3M2
Electromagnetic compatibility (EMC)	EN 61326-1 Industrial CISPR 11: group 1, class A
	IEC 61000-6-5 power plant environment
	Korea (KCC): class A equipment (industrial transmission and communication equipment)
	USA (FCC):47 CFR 15 subpart B. This product is considered an exempt device under clause 15.103.
General specifications
Warranty	Two years (excluding battery)
	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)
Protection against unauthorised operations	Suitable for securing cables (max. Φ 6mm)
¹Warm up the product to -10 °C (+14 °F) before turning on the unit
Specifications i17XX-FLEX1.5KIP flexible current clamp
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)
Non-destructive flow	100 kA (50/60 Hz)
Temperature coefficient over the operating temperature range	0.05% from readout/°C (0.028% from readout/°F)
Operating voltage	1000 V CAT III, 600 V CAT IV
Output cable length	2,0 m
Cable material	TPR
Weight	115 g
Cable material	TPR
Material coupling	POM + ABS/PC
Output cable	TPR/PVC
Operating temperature	-20 °C to +70 °C (-4 °F to 158 °F) temperature of conductor being tested 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
Protection class	IEC 60529: IP65
Warranty	One year