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

Product Overview Fluke 1742, 1746, 1748 Three-Phase Power Quality Loggers

The Fluke 1742, 1746, and 1748 are advanced three-phase power quality loggers designed for energy monitoring, power quality troubleshooting, and compliance analysis. These instruments capture and log a comprehensive range of electrical parameters in both simple and complex power environments, helping engineers and electricians identify and resolve power quality issues efficiently. Built for flexibility, durability, and ease of use, these loggers are ideal for use in commercial, industrial, and utility applications.

Key Hardware Features Fluke 1742, 1746, 1748 Three-Phase Power Quality Loggers

Three-phase voltage and current measurement including neutral current using four flexible current probes.
Comprehensive data logging of over 20 separate sessions, with automatic capture of a wide range of power and power quality variables.
High-accuracy measurements compliant with IEC 61000-4-30 Class A Edition 3 standards.
Event waveform capture (Fluke 1748) for dips, swells, and interruptions, with RMS profile, timestamps, and severity.
Advanced power quality parameter measurement, including harmonics, interharmonics, voltage imbalance, flicker, and rapid voltage changes.
User-friendly PC interface with guided, graphical setup to ensure correct configuration, supported by intelligent verification and auto-correction features.
Flexible power supply allows operation from measured circuits (100 V to 500 V) or wall outlets.
Robust and IP65-rated design for harsh environments (with IP65 voltage input adapter).
Dual external USB ports for PC connection and easy data transfer to USB flash drives.
Ethernet connectivity with both wired and wireless options for fast setup and data download.
Compact form factor (23 cm x 18 cm x 5.4 cm) to fit tight spaces and electrical panels.
Highest industry safety rating: 600 V CAT IV / 1000 V CAT III.
Optimized accessories including flat voltage cables and flexible, thin current probes.
4-hour battery backup via rechargeable lithium-ion battery.
Security options for theft prevention using standard chains or locks.
Magnetic hanging kit for quick installation inside or outside panels (standard with 1748).

Electrical Specifications

Voltage Measurement Range: Up to 1000 V with ±0.1% accuracy.
Current Measurement (iFlex):
- 1500 A, 3000 A, and 6000 A models available with up to ±1.5% accuracy.
Frequency: 42.5 Hz to 69 Hz with ±0.1% accuracy.
THD Measurement:
- Voltage and current: up to ±2.5%.
Harmonics: 2nd to 50th with voltage accuracy of ±5%.
Flicker Analysis: PLT, PST (5% accuracy).
Waveform Sampling: 16-bit resolution, 10.24 kHz rate synchronized to line frequency.
Internal Memory: Non-user-replaceable flash memory for up to 20 sessions and 500 events.
Average Logging Intervals: From 1 second to 30 minutes.
Energy Parameters: Wh, varh, VAh, power factor, energy demand, and cost tracking.
Measurement Circuits Supported: Single-phase, split-phase, three-phase (delta, wye, open-leg), and current-only configurations.

Power Supply and Battery

Input Voltage Range: 100 V – 500 V (direct from circuit) or 100 V – 240 V (with standard power cable).
Power Consumption: Max 50 VA.
Battery: 3.7V, 9.2Wh Li-ion; approx. 4-hour runtime, <6-hour recharge time.
Energy Efficiency: ≥68.2%, idle consumption <0.3W.

Communication and Connectivity

USB-A: For flash drive data export and firmware updates.
USB-mini-B: For PC data downloads.
Wi-Fi: For file transfer and remote control (direct or networked).
Bluetooth: For supplementary measurements using Fluke Connect® modules.
Ethernet: For high-speed wired data and setup.

Environmental and Safety Ratings

Operating Temperature: -25°C to +50°C
Storage Temperature: -25°C to +60°C (battery removed), -20°C to +50°C (with battery)
Humidity Tolerance: 100% RH at 30°C, down to 35% at 50°C
Altitude: Operating up to 2000 m, storage up to 12,000 m
Enclosure Rating: IP50 standard, IP65 with voltage input connector
Shock/Vibration: IEC 60721-3-3 / 3M2 compliant
Safety Category: 1000 V CAT III / 600 V CAT IV
EMC Compliance: EN 61326-1, FCC Class A, IEC 61000-6-5

Standards and Certifications

Power Quality: IEC 61000-4-30 Class A, EN 50160
Harmonics: IEC 61000-4-7 Class 1, IEEE 519
Measurement Safety: IEC 61010-2-033
Battery Compliance: IEC 62133

Included Accessories

Flexible current probes (iFlex), flat voltage cables, power cord, magnetic hanging kit (1748 only), USB cables, PC software, carrying case.

Summary

The Fluke 1742, 1746, and 1748 Power Quality Loggers offer an ideal balance of portability, precision, and power analysis capability. Whether for troubleshooting power quality issues, conducting energy studies, or verifying compliance with power standards, these tools deliver dependable performance with high measurement accuracy and robust data handling. The 1748 model additionally offers full waveform capture for advanced diagnostics.

Key Selling Points:

Fully compliant with Class A power quality standards
Flexible installation and power options
Compact and rugged design for industrial environments
Advanced logging and waveform capture (Fluke 1748)
Easy setup and data retrieval with PC or USB connectivity
Suitable for utility, commercial, and industrial power systems

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