Status: Discontinued — Replaced by 1770 Series
Overview
The Fluke 430 Series was Fluke’s primary handheld three-phase power quality analyzer platform for over a decade. The 434-II and 435-II provided IEC 61000-4-30 Class A measurements with energy loss analysis, harmonic analysis to the 50th order, and dip/swell/transient capture. The 437-II added 400 Hz support for aviation and military applications. The 438-II incorporated motor analysis for direct measurement of mechanical power, torque, speed, and efficiency. The original 43B was a single-phase power quality analyzer. All 430 Series models are now discontinued but remain heavily deployed worldwide.
Specifications
| Parameter | Value |
|---|---|
| Voltage Range | 1 V to 1000 V AC/DC (model dependent) |
| Current Range | 0.5 A to 6000 A with optional CTs |
| Frequency | 50/60 Hz (437-II adds 400 Hz) |
| Harmonics | Up to 50th harmonic with interharmonics |
| Transient Capture | 200 kHz sampling, up to 6 kV |
| Compliance | IEC 61000-4-30 Class A (434-II, 435-II, 437-II, 438-II) |
| Safety Rating | CAT IV 600 V / CAT III 1000 V |
| Key Features | Energy loss calculator (Unified Power), PowerWave data capture, motor analysis (438-II), 400 Hz support (437-II), Fluke PowerLog software |
Models We Repair
Select your model below to request a repair. If your exact model isn’t listed, choose the closest match — the evaluation and repair process is the same across all Fluke 430 Series configurations.
| Model | Description | Service |
|---|---|---|
| Fluke 438-II | PQ analyzer with motor analysis — torque, speed, efficiency | Request Repair |
| Fluke 438 | PQ analyzer with motor analysis (original) | Request Repair |
| Fluke 437-II | PQ analyzer with 400 Hz support for aviation/military | Request Repair |
| Fluke 437 | PQ analyzer with 400 Hz support (original) | Request Repair |
| Fluke 435-II | Advanced PQ analyzer with energy loss calculator | Request Repair |
| Fluke 435 | Advanced PQ analyzer (original) | Request Repair |
| Fluke 434-II | Three-phase energy analyzer with PQ logging | Request Repair |
| Fluke 434 | Three-phase energy analyzer (original) | Request Repair |
| Fluke 43B | Single-phase power quality analyzer (legacy) | Request Repair |
Common Fluke 430 Series Failures We Repair
- Voltage input protection circuit damage from overvoltage transients
- LCD display degradation including pixel loss and backlight failure
- Current probe connector pin corrosion from field moisture exposure
- Rotary selector switch contact wear causing intermittent mode selection
- Internal battery cell failure reducing portable logging time
- SD card slot mechanical failure preventing data storage
- USB communication port failures affecting data download
Our technicians perform component-level diagnostics on every Fluke 430 Series unit. We don’t just replace boards — we identify and repair the specific failed components, saving you the cost of full module replacements when possible.
Calibration
Every Fluke 430 Series repair includes NIST-traceable calibration. We verify all voltage, current, power, and power quality measurement functions against our reference standards and provide a detailed calibration certificate documenting measured performance against the manufacturer’s published specifications.
Who Uses the Fluke 430 Series?
The Fluke 43B / 434 / 435 / 437 / 438 Power Quality Analyzers (including -II models) are used by facility electricians, power quality consultants, utility companies, aviation maintenance (437-II), motor-driven equipment operators (438-II), and industrial plant engineers.
Our Repair Process
- Ship Your Instrument: Send your Fluke 430 Series to our facility from anywhere in the US. We provide prepaid shipping labels on request.
- Free Evaluation: Our technicians perform a complete diagnostic assessment and provide a firm, no-obligation repair quote.
- Expert Repair: Upon approval, we perform component-level repair using OEM-grade parts.
- NIST-Traceable Calibration: Full calibration with documented results across all critical parameters.
- Return Shipment: Your instrument is securely packaged and returned with calibration certificate, repair documentation, and our 90-day warranty.
Request a Repair
Contact us for professional Fluke 430 Series repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@junecompany.com | All repairs include a 90-day parts and labor warranty.
