Fluke 1742 Three-Phase Power Quality Logger

Power Quality Logger with 60 cm 1,500A iFlex

The Fluke 1742 Power Quality Logger is a compact device for technicians and engineers to troubleshoot, quantify energy usage, and analyse power distribution systems.

The Fluke 1742 is compliant with international standards such as IEC 61000-4-30 and IEC 62586. The 1742 can simultaneously log up to 500 parameters and capture events to find intermittent and hard-to-find power quality issues.

An optimised 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 (WiFi) to view data directly in the field.

The included Energy Analyze Plus software enables thorough analysis of the captured data and reporting according to national and international standards such as EN 50160.

Voltage	Range: 1000 V Maximum resolution: 0.1 V.
Current: Direct input	See datasheet.
Frequency	Range: 42.5 Hz to 69 Hz Maximum resolution: 0.01 Hz.
Auxiliary input	Range: ±10 V dc Maximum resolution: 0.1 mV.
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).
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-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 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.
Events	Voltage: dips, swells, interruptions, current: inrush current 1748: mains signaling, transients (low frequency).
Inrush	RMS profile based on 1/2 cycle RMS steady state triggering.
Flicker	In accordance with IEC 61000-4-15 and IEEE 1453.
Programmable PQ limits	Enables user defined limits for local standards compliance.
Interfaces.
USB-A	File transfer via USB flash drive, firmware updates, max. supply 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 supported USB to BLE or WiFi/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.
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.
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.
Displayed units	User configurable (7 characters, for example, °C, psi, or m/s).
General Specifications
Operating temperature	-25 °C to +50 °C (-13 °F to 122 °F)1.
Enclosure	IEC 60529: IP50. IEC 60529: IP65 with IP65 rated voltage connector.
1Warm up the product to -10 °C (+14 °F) before you power the unit on
Weight	Instrument: 1 kg (2.2 lb).
Dimensions	23.0 cm x 18.0 cm x 5.4 cm (9.1 in x 7.1 in x 2.1 in).
Fluke 1742 warranty	Two-years (battery not included). Accessories: one-year.