GIGAHERTZ NFA-1000 Portable 3D Broadband Electromagnetic Field Analyzer
| Brand | GIGAHERTZ (distributed by PKSAIR) |
|---|---|
| Origin | Germany |
| Model | NFA-1000 |
| Frequency Range | 5 Hz – 1000 kHz |
| Electric Field Measurement Range | 0.1 – 1999 V/m |
| Magnetic Field Measurement Range | 0.1 – 19999 nT |
| Measurement Accuracy | ±2% at 50/60 Hz |
| Detector Types | True RMS, Peak Hold |
| Sampling Rate | Up to 110,000 samples/sec |
| data logging | 10 records/sec to microSD card |
| Power Supply | Rechargeable NiMH battery (48 h typical operation) or DC input |
| Dimensions | 70 × 175 × 30 mm |
| Weight | 2.1 kg |
Overview
The GIGAHERTZ NFA-1000 Portable 3D Broadband Electromagnetic Field Analyzer is a precision-engineered instrument designed for quantitative assessment of low-frequency electromagnetic fields (EMF) in occupational, environmental, and infrastructure-related applications. Operating on the principle of isotropic triaxial sensing—combined with real-time digital signal processing—the NFA-1000 simultaneously captures orthogonal electric (E-field) and magnetic (H-field) vector components across a continuous frequency spectrum from 5 Hz to 1000 kHz. This enables compliance-oriented evaluation of exposure against international reference levels defined in ICNIRP 2010, IEEE C95.1-2019, and EU Directive 2013/35/EU. Unlike single-axis or narrowband survey meters, the NFA-1000 employs patented wideband compensation algorithms (DE19809784, DE10317805) to maintain amplitude fidelity and phase coherence across its entire operational bandwidth—critical for accurate harmonic analysis of complex waveforms generated by variable-frequency drives, traction systems, and power electronics.
Key Features
- Integrated 3D isotropic E/H-field composite sensor with automatic frequency-dependent calibration and temperature-stable response
- True RMS and peak-hold detection modes with selectable weighting filters: 16.6 Hz (railway), 50/60 Hz (power grid), 100/120 Hz (harmonic doubling), 150/180 Hz, 2 kHz bands
- High-speed ARM-based processor enabling 110,000-sample-per-second acquisition and synchronized 3-axis time-domain recording
- Real-time acoustic feedback via integrated speaker: tone intensity scales linearly with field magnitude, supporting rapid source localization
- On-device LCD display showing total field magnitude (V/m or nT), spectral distribution, and peak-hold values per axis
- Dual power architecture: long-life NiMH battery (rated for 48 h continuous use) + universal DC input (9–15 V)
- MicroSD card slot (up to 128 GB) with timestamped binary logging (including raw I/Q data), plus integrated voice memo function for contextual annotation
- AC and DC input ports for external probe integration and auxiliary signal monitoring
Sample Compatibility & Compliance
The NFA-1000 is validated for measurement of quasi-static and time-varying EMF emissions from diverse sources including but not limited to: AC power lines (50/60 Hz and harmonics), railway traction systems (16.7 Hz, 25 Hz), induction furnaces, transformers, switch-mode power supplies, LED drivers, and RFID readers operating up to 135 kHz. Its sensor architecture meets the metrological requirements for Class 1 broadband field probes as specified in IEC 61786-1:2013 and EN 50499:2018. All units undergo factory calibration traceable to PTB (Physikalisch-Technische Bundesanstalt) standards in Braunschweig, Germany, with full calibration certificates provided. The device supports audit-ready data integrity through embedded time stamps, firmware-signed logs, and optional GLP-compliant software export protocols.
Software & Data Management
The included NFA-View PC software (Windows/macOS compatible) provides comprehensive post-processing capabilities—including FFT-based spectral decomposition, time-series overlay, statistical exposure duration analysis, and automated report generation per ICNIRP or national regulatory templates. Voice annotations recorded during field measurement are time-synchronized with corresponding datasets, enabling forensic-level reconstruction of measurement conditions. Export formats include CSV, XML, and PDF reports compliant with ISO/IEC 17025 documentation requirements. Software supports FDA 21 CFR Part 11–compliant user authentication, electronic signatures, and audit trail logging when configured in secure network environments.
Applications
- Environmental EMF baseline surveys near substations, high-voltage transmission corridors, and urban infrastructure
- Ongoing occupational health monitoring in utility plants, rail maintenance depots, and manufacturing facilities with high-power equipment
- Pre-commissioning and periodic verification of electromagnetic compatibility (EMC) mitigation measures
- Scientific research on low-frequency bioelectromagnetic interactions requiring high-fidelity waveform capture
- Regulatory compliance audits for workplace safety under EU Directive 2013/35/EU and national transposition laws
- Electromagnetic site assessments for sensitive installations (e.g., MRI suites, electron microscopy labs, avionics test bays)
FAQ
Is the NFA-1000 suitable for measuring fields from 5G or microwave sources?
No. The NFA-1000 is optimized for frequencies up to 1000 kHz and is not designed for RF/microwave bands (MHz–GHz range). For those applications, refer to GIGAHERTZ’s HF series analyzers.
Does the device support external calibration by third-party laboratories?
Yes. The NFA-1000 features standardized analog output interfaces and documented calibration constants, enabling traceable recalibration at accredited metrology labs compliant with ISO/IEC 17025.
Can data be exported in formats compatible with GIS mapping platforms?
Yes. NFA-View supports KML and GeoJSON export with geotagged measurements when used with optional GPS-enabled accessories.
What is the warranty period and service coverage?
GIGAHERTZ provides a 3-year manufacturer warranty covering parts and labor. Extended calibration and technical support contracts are available directly through authorized distributors in EMEA, APAC, and North America.
