The Fluke 1736 Three-Phase Energy Logger captures and logs comprehensive electrical parameters for detailed energy and power quality analysis in industrial and commercial environments. This field instrument measures voltage, current, power (real, reactive, apparent), power factor, frequency, and harmonic distortion up to the 25th harmonic. A 4.3-inch color touchscreen interface enables intuitive data acquisition and real-time monitoring. The 1736 supports user-selectable logging intervals from 1 second to 1 week, onboard memory for extended deployments, SD card expansion, and USB data transfer. Compatible with a wide array of current probes including Fluke standard probes, i-series FLEX models, and legacy clamp designs. Energy audits, waste identification, consumption optimization, and power system reliability assessment are primary use cases.
Technical Specifications
Voltage Measurement
• Range: 0 to 600 V (CAT III 600 V / CAT IV 300 V)
• Accuracy: ±0.5% of reading, ±0.2% of range
• True RMS, 3-Phase + Neutral channels
Current Measurement
• External current probes required (sold separately)
• Compatible with Fluke 1736/1738 standard probes, 3563 series (50, 20, 10 A), i400, i1000s, i2000 FLEX, i1010, i3000 FLEX, i4000 FLEX models, i5000, and 345/347/349/353–358 FLEX variants
• True RMS measurement, accuracy varies by probe selection
Power Parameters
• Active Power: ±1% of reading, ±0.5% of range
• Apparent Power: ±1% of reading, ±0.5% of range
• Reactive Power: ±1% of reading, ±0.5% of range
• Power Factor / Displacement Power Factor: ±2 degrees
Frequency
• Range: 45 Hz to 65 Hz
• Accuracy: ±0.2 Hz
Harmonics
• Voltage and Current: up to 25th harmonic
• Total Harmonic Distortion (THD) measurement
• Accuracy: ±5% of reading
Logging & Storage
• Intervals: 1 second to 1 week (user-selectable)
• SD card slot for extended storage
• USB interface for PC data transfer
• Energy Analyze Plus software for analysis and reporting
– Key Features
• True RMS voltage and current measurement across three phases plus neutral
• Real-time and logged energy consumption (kWh, kVAh) tracking
• Harmonic analysis to 25th order for power quality assessment
• Field-proven compatibility with industry-standard current probes
– Typical Applications
• Energy audits and consumption baseline studies
• Power quality monitoring and harmonic characterization
• Load profiling and demand-side management
• Equipment efficiency validation
– Compatibility & Integration
The 1736 accepts current probes from Fluke’s i-series FLEX line, legacy 345/347/349 FLEX variants, and earlier-generation clamp designs. Data export via USB enables integration with Fluke Energy Analyze Plus and third-party analysis platforms.
