Single Seismic Geophone 10Hz:

Equipped in Land Case with 1Meter Leader Cable(Custom Lead Distance optional) and terminated with Connector ( Split Spring Clip,Mueller Clips, KCK Connector or Kooter Connector optional ). With vertical Direction, Horizontal Direction and 3 Component Structure available.

Type I: SM-24 Equivalent Geophone:

Natural Frequency ( Hz ):10 ± 2.5%

Coil resistance(Ω):375 ± 2.5%

Open Circuit Damping :0.25

Damping With Shunt Resistor:0.686 + 5.0%, 0%

Open Circuit Intrinsic Voltage Sensitivity( v/m/s ):28.8 v/m/s ± 2.5%

Sensitivity With Shunt Resistor ( v/m/s ):20.9 v/m/s ± 2.5%

Damping Calibration-Shunt Resistance (Ω):1000

Harmonic distortion( % ):＜0.1%

Typical Spurious Frequency (Hz ):＞240Hz

Moving Mass ( g ):11.0g

Typical case to coil motion p-p ( mm ):2.0mm

Allowable Tilt :≤10º

Type II:SM-4 Equivalent Geophone:

Natural Frequency ( Hz ): 10 ± 5.0%

Coil resistance(Ω): 375 ± 5.0%

Open Circuit Damping : 0.271 ± 5.0%

Damping With Shunt Resistor : 0.6 ± 5.0%

Open Circuit Intrinsic Voltage Sensitivity( v/m/s ): 28.8 v/m/s ± 5.0%

Sensitivity With Shunt Resistor ( v/m/s ): 22.7 v/m/s ± 5.0%

Damping Calibration-Shunt Resistance(Ω): 1400

Harmonic distortion( % ): ＜0.20%

Typical Spurious Frequency (Hz ): ≥240Hz

Moving Mass ( g ):11.3g

Typical case to coil motion p-p ( mm ):2.0mm

Allowable Tilt : ≤20º

Type III: GS32CT Equivalent Geophone:

Natural Frequency ( Hz ): 10± 2.5%

Coil resistance(Ω): 395 ± 2.5%

Open Circuit Damping : 0.316 ± 2.5%

Damping With Shunt Resistor : 0.7 ± 2.5%

Open Circuit Intrinsic Voltage Sensitivity( v/m/s ): 27.5 v/m/s ± 2.5%

Sensitivity With Shunt Resistor ( v/m/s ): 19.7 v/m/s ± 2.5%

Damping Calibration-Shunt Resistance(Ω): 1000Ω

Harmonic distortion( % ): ＜0.1%

Typical Spurious Frequency (Hz ): ＞250Hz

Moving Mass ( g ):11.2g

Typical case to coil motion p-p ( mm ):1.5mm

Allowable Tilt : ≤10º

Type IV:GS20DX-10Hz Equivalent Geophone:

Natural Frequency(Hz): 10±5%

Open Circuit Damping: 0.30

Damping with Shunt Resistor: 0.70±5%

Calibration Shunt Resistance(ohm):1000

Open Circuit Sensitivity(V/m/s): 28.0±5%

Sensitivity with Shunt Resistor(V/m/s): 20.0±5%

Coil Resistance(ohm):395±5%

Harmonic Distortion(%):≤0.20

Typical Spurious Frequency(Hz): ≥200

Moving Mass(g): 11

Max. Case to Coil Motion p-p(mm): 1.5