Geophone PS-4HZ

Product Overview
The PS-4HZ low‑frequency geophone features a rotating‑coil design that reduces transverse impact forces. It is available in P‑wave (longitudinal) and S‑wave (transverse) configurations and is intended for seismic acquisition, engineering vibration monitoring and handheld vibration measurement.

Applications

• Geophysical exploration (seismic acquisition)
• Engineering vibration monitoring and site surveys
• Handheld vibration meters and general vibration measurement

Product Category
Low Frequency (≤4.5 Hz)

Technical Parameters

• Model: PS(H)-4 / PS-4HZ (20℃)
• Natural frequency: 3.85 ±10% Hz
• Sensitivity: 28.2 ±7.5% V/m/s
• Coil resistance: 400 ±5% Ω
• Damping ratio: 0.65 ±10%
• Distortion: ≤0.3%
• Maximum motion (limit): 4 mm
• Moving mass: 11.3 g
• Spurious frequency: 80 Hz
• Dimensions (Ø×H): 25.4 × 36 mm
• Operating temperature: -40 to +80 °C
• Weight: 78 g
• Warranty: 1 year (exclusions apply)

Notes

• Damage from high voltage or physical impact is excluded from warranty.
• Product specifications may be updated without prior notice.

Specifications

• Model designation: PS-4HZ (also shown as 4HZ / PS-4HZ)
• Coil structure: rotating coil to suppress transverse shock
• Waveforms: available in P‑wave and S‑wave versions
• Typical applications: seismic surveys, engineering vibration monitoring, handheld meters