Electric and magnetic field probe - 1 Hz to 400 kHz, spectrum analysis: WP400-3 | Wavecontrol

The WP400-3 is an isotropic probe designed for electric and magnetic field measurement from 1 Hz to 400 kHz. It supports True RMS measurement and spectrum analysis for technical assessments of electromagnetic field exposure in low-frequency and intermediate-frequency environments.

The probe is intended for applications requiring measurements in accordance with international standards, including equipment and workplace exposure assessments linked to household appliances, welding equipment, electronic equipment and electrical installations.

Benefits

• Combined E-field and H-field measurement: one probe covers both electric field and magnetic field assessment.
• Wide low-frequency coverage: measurement range from 1 Hz to 400 kHz.
• Isotropic measurement: suitable for environments where field direction may vary.
• True RMS response: supports reliable field strength evaluation in complex electromagnetic environments.
• Spectrum analysis capability: includes FFT mode for frequency-domain analysis.
• Weighted Peak Method mode: supports assessment against exposure limits and standards.
• Standards-oriented use: applicable to IEC/EN 62233, IEC/EN 62822 and IEC/EN 62311 measurement contexts.

Main Features

• Field types: electric field and magnetic field measurement.
• Electric field sensor type: isotropic electrode.
• Magnetic field sensor type: isotropic 3 cm² coils.
• Frequency range: 1 Hz – 400 kHz for both electric and magnetic field measurements.
• Electric field measurement range in Field Strength Mode: 10 V/m to 400 kV/m.
• Magnetic field measurement range in Field Strength Mode: 200 nT to 50 mT from 100 Hz to 10 kHz.
• Magnetic field range behaviour: upper range increases linearly with decreasing frequency below 100 Hz and decreases linearly with increasing frequency above 10 kHz.
• Field Strength Mode graphical display: RMS, axis values, AVG, MAX, MIN, PEAK and RMS time graph.
• Peak value: digital realtime display for both electric and magnetic fields.
• Electric field resolution: less than 0.4 mV/m above 8 Hz.
• Magnetic field resolution: less than 0.3 nT at 50 Hz and less than 0.15 nT above 100 Hz.
• Electric field noise level: less than 10 V/m from 10 Hz to 400 kHz.
• Magnetic field noise level: less than 200 nT from 10 Hz to 400 kHz.
• Typical uncertainty in Field Strength Mode: 0.67 dB for electric field and 0.60 dB for magnetic field from 10 Hz to 100 kHz.
• Weighted Peak Method measurement range: 200% minimum for both electric and magnetic field measurements.
• Weighted Peak Method graphical display: PEAK, axis values, AVG, MAX, MIN, RMS and time graph in percentage.
• Supported standards and limits: EU Directive 2013/35/EU, FCC/IEEE, ICNIRP 1998 workers, ICNIRP 2010 workers and BGV B11.
• Software updates: easy software update to support future modifications and additional limits.
• Electric field measurement range in FFT Mode: 40 mV/m to 400 kV/m.
• Magnetic field measurement range in FFT Mode: 2 nT to 50 mT from 100 Hz to 10 kHz.
• FFT Mode graphical display: frequency analysis, total field and axis display.
• SPAN resolution: 400 Hz with 1 Hz resolution, 4 kHz with 10 Hz resolution, 40 kHz with 100 Hz resolution and 400 kHz with 1 kHz resolution.
• FFT: 1024-point FFT.
• Isotropy: ±5% for electric field and ±4% for magnetic field.
• Linearity: ±1% typical and ±2% maximum.
• Weight: 125 g.
• Probe size: 275 x 33 mm Ø.

Typical Applications

• Human exposure assessment: evaluation of electromagnetic fields in environments where personnel may be exposed to low-frequency or intermediate-frequency sources.
• Household appliances and similar equipment: measurements aligned with IEC/EN 62233 methods.
• Electric welding equipment: exposure assessment related to IEC/EN 62822 applications.
• Electrical and electronic equipment: assessment where no dedicated product or product-family standard applies, in line with IEC/EN 62311 contexts.
• Industrial safety: measurement around electrical installations, welding systems, machinery and technical processes.
• Laboratories and R&D: characterization of electric and magnetic fields during testing, validation and technical investigations.

Why choose WP400-3

The WP400-3 is suited for Canadian technical teams requiring a single probe for electric and magnetic field measurements across the 1 Hz to 400 kHz range. Its isotropic design, True RMS measurement capability and spectrum analysis functions make it appropriate for exposure assessment, compliance-oriented measurements and technical documentation.

With Field Strength Mode, Weighted Peak Method mode and FFT Mode, the WP400-3 supports both overall field evaluation and frequency-domain analysis. This makes it a practical choice for occupational safety teams, industrial hygiene specialists, laboratories, equipment manufacturers and engineers working with electromagnetic field exposure assessments.