The Fluke 1735 Three-Phase Power Quality Logger automatically records voltage, current, power, and harmonic data across three-phase systems. Designed for energy studies and power quality assessment, it captures the parameters required to identify energy waste, analyze consumption patterns, and optimize distribution efficiency. The instrument combines an intuitive interface with straightforward deployment, making it suitable for field professionals across diverse operational environments.
Technical Specifications
Voltage Measurements
• Range: 100 Vrms to 690 Vrms (line-to-line or line-to-neutral)
• Accuracy: ± 0.5% of reading ± 0.2% of range
• Frequency Response: 45 Hz to 66 Hz
Current Measurements
• Input: External current probes (i400, i1000s, 438-II i400s)
• Ranges: 5 A to 3000 A (probe-dependent)
• Accuracy: ± 1% of reading ± 0.05% of range
Power Parameters
• Active Power: kW, MW
• Reactive Power: kvar, Mvar
• Apparent Power: kVA, MVA
• Power Factor & Displacement Power Factor
• Accuracy: ± 1% of reading
Harmonic Analysis
• Voltage Harmonics: Up to 25th harmonic with THD
• Current Harmonics: Up to 25th harmonic with THD
• Accuracy: ± 1% of reading
Energy Logging
• Active Energy: kWh, MWh
• Reactive Energy: kvarh, Mvarh
• Configurable intervals: Seconds to hours
– Key Features
• High-resolution backlit color LCD display for real-time and logged data visualization
• Event capture: Transients, flickers, sags, and swells
• EN 50160 power quality standards compliance
• USB data download and connectivity
• Intuitive front-panel navigation
– Typical Applications
• Energy consumption analysis and waste identification
• Three-phase power distribution optimization
• Power quality audits and monitoring campaigns
• Harmonic distortion assessment
– Compatibility & Integration
Data download and analysis via Fluke Power Log software. Compatible with industry-standard external current probes for flexible current range selection.















