The Fluke 1744 Power Quality Logger is an everyday power meter for technicians who troubleshoot and analyze power quality issues. Capable of simultaneously logging up to 500 power parameters for up to 85 days and monitoring for events, this power logger helps uncover intermittent and hard-to-find power quality issues. The included PQ Log software quickly assesses the quality of power at the service entrance, substation, or at the load, according to the latest EN50160 standard.

Features:

• Measures voltage and current harmonics, interharmonics, mains signaling, unbalance, and frequency
• Plug and play: Setup in minutes with automatic current probe detection and powering
• Installs inside the cabinet: Compact, fully-insulated housing and accessories fit easily in tight spaces next to live power
• Determines the root cause: Included PQ Log software quickly analyzes trends, creates statistical summaries, and generates detailed graphs and tables
• Monitors power for the long-term: Data can be downloaded during recording without interruption
• Measure voltage with premium accuracy: IEC61000-4-30 Class-A compliant voltage accuracy (0.1%)
• Quickly validate quality of power: Assess power quality according to EN50160 power quality standard with statistical overview
• Rugged and reliable: Designed for everyday field use with no moving parts and durable insulated case with two year warranty

Applications:

• Disturbance analysis – Uncover root cause of equipment malfunction for later mitigation and predictive maintenance
• Quality of service compliance – Validate incoming power quality at the service entrance
• Power quality studies – Assess baseline power quality to validate compatibility with critical systems before installation
• Load studies – Verify electrical system capacity before adding loads
• Energy and power quality assessment – Validate performance of facility improvements by quantifying energy consumption, power factor, and general power quality before and after improvements

Spec Summary:

Voltage and Current Measurement
Input voltage	Input range VI P-N: max 480 V AC Input range VI P-P: max 830 V AC Max. overload voltage: 1.2 VI Input range selection: By job programming Connections: P-P or P-N, 1- or 3-phase Nominal voltage VN: <= 999 kV with PTs and ratio Input resistance: App. 820 kΩ per chan. Lx-N Single phase (L1 or A, L2 or B, L3 or C connected): app. 300 kΩ Intrinsic uncenrtainty: 0.1 % of VI Voltage transformer: Ratio: <999 kV / VI Ration selection: By job programming
Current input with Flexi Set	Input ranges II L1 or A, L2 or B, L3 or C, N: 15 A / 150 A / 1500 A / 3000 A ac Measuring range: 0.75 A … 3000 A ac Intrinsic uncertainty: < 2 % of II Position influence: Max. ± 2 % of measured value – for distance conductor to meas. head > 30 mm Stray field influence: < ± 2 A ac for Iext=500 A ac and distance to measuring head > 200 mm Temperature coefficient: < 0.05 % / K Current transformer: Ratio <= 999 kA / II Ratio selection: By job programming Connection: 3-phase, 3-phase +N, 2 phase L1 or A and L3 or C (2 W-meter-method) 7 pole connector
Current input for clamp	Input ranges II L1 or A, L2 or B, L3 or C, N: 0.5 V nominal (for II) 1.4 Vpeak Intrinsic uncertainty: < 0.3 % of II Max. overload: 10 V ac Input resistance: App. 8.2 kΩ Current transformer: Ratio Ω 999 kA / II
Power systems	Delta, 2-Element Delta, Wye, Single Phase, Split Single Phase