The Fluke 1738 Three-Phase Power Quality Logger captures and analyzes electrical system performance in real time. This instrument automatically logs over 500 power quality parameters—including voltage, current, power, and harmonics—while recording transient events such as dips, swells, and inrush currents. The 4.3-inch color touchscreen guides field setup with intuitive menus and intelligent verification functions to correct connection errors digitally. Internal flash memory stores up to 10 typical logging sessions spanning 8 weeks at 1-minute intervals, or over a year of continuous data. The logger powers directly from the measured circuit or via standard IEC 60320 input, consuming maximum 50 VA (15 VA from IEC input). Wi-Fi and USB connectivity enable remote data access through Fluke Connect, while the included Energy Analyze Plus software delivers detailed analysis and automated reporting.
Technical Specifications
• Data Capture: Over 500 power quality parameters; up to 20 separate logging sessions stored locally
• Memory: Stores approximately 10 logging sessions of 8 weeks duration at 1-minute intervals plus 500 events; supports over one year of continuous logging
• Display: 4.3-inch full-color LCD touchscreen, 480 × 272 pixels, resistive touch
• Dimensions: 198 mm × 167 mm × 55 mm (7.8 in × 6.6 in × 2.2 in); with power supply: 198 mm × 167 mm × 90 mm (7.8 in × 6.6 in × 3.5 in)
• Weight: 1.1 kg (2.5 lb)
• Power Consumption: Maximum 50 VA; 15 VA maximum from IEC 60320 input; <0.3 W no-load from IEC input
• Operating Temperature: −10 °C to +50 °C (14 °F to 122 °F)
• Storage Temperature: −20 °C to +60 °C (−4 °F to 140 °F); with battery: −20 °C to +50 °C (−4 °F to 122 °F)
• Operating Humidity: 10–30 °C at max 95% RH; 30–40 °C at max 75% RH; 40–50 °C at max 45% RH
– Key Features
• Direct circuit powering eliminates external outlet dependency
• Intelligent verification corrects common wiring misconfigurations
• Wi-Fi remote control and data download
• Bluetooth/BLE compatibility with other Fluke Connect devices
• USB-A connectivity for file transfer and PC integration
– Typical Applications
• Energy surveys and load studies
• Power quality analysis and event capture
• Harmonics measurement and assessment
• Long-term energy monitoring
– Compatibility & Integration
Fluke Connect ecosystem integration enables smartphone and desktop access. Energy Analyze Plus software included for detailed analysis; optional IEEE 519 report generation available with license.
