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| Categories | Geophone String | 
|---|---|
| Brand Name: | EGL | 
| Model Number: | Marsh geophone string | 
| Certification: | ISO9001 | 
| Place of Origin: | China | 
| MOQ: | 1 sets | 
| Payment Terms: | T/T, Western Union,PayPal | 
| Supply Ability: | 10000sets/month | 
| Delivery Time: | 5-8 work days | 
| Packaging Details: | Carton | 
| Natural Frequency: | 10Hz±5% | 
| Geophone Case: | Marsh Case | 
| Spike: | 75mm | 
| Geophone Connection: | 6X2 | 
| Cable O.D: | 4.6mm | 
| Connector Type: | Split Spring connector | 
| Price: | Negotiable | 
| Company Info. | 
| EGL Equipment services Co.,LTD | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
SM4 10Hz Geophone String for Marsh and Transition Zone
Used for Seismic Data Acquisition System .
| Type | SM4 10Hz Geophone String for Marsh and Transition Zone | 
| Geophone Direction | Vertical Direction | 
| Geophone Connection | 12X1,6X2,4X3 optional | 
| Geophone Type | SM-4 Geophone 10Hz | 
| Geophone Case | Waterproof heavy duty Case for Marsh and Transition Zone 12 pcs | 
| Spike | Brass Spike length75mm | 
| Cable | Waterproof Cable O.D.5.33mm,6.4mm and 7.8mm available; Custom Lead-in Length; Custom Geophone Interval Distance; Custom Drop Cable Length | 
| Connector Type | *KCK Connector( Male or Female or Dual / Lock Ring Type) *SH17-WCR-2M2F Connector *5515 Connector (Male or Female or Dual / Screw Fit ) *KCL Connector( KCL male or KCL female or KC2L-4 Dual ) *Other Connector Type available | 
If you need other configuration, Cable Length, Interval,Connector, please contact us.

| Type | EG-10-II (10Hz SM4) | 
| 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 | 
| Operating Temperature Range ( ℃ ) | -40℃ TO +100℃ | 
| Height ( mm ) | 32 | 
| Diameter ( mm ) | 25.4 | 
| Weight ( g ) | 74 | 
| Warranty Period | 3 years | 
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