28Hz Geophone with Soil Spike for P Wave and S Wave

• After-sales Service: Available
• Warranty: 3 Year Limited Warranty
• Accuracy: <1mm
• Vertical Lines: 1
• Horizontal Line: 1
• Natural Frequency: 28Hz
• Model NO.: 20dx geophone
• Geophone Type: P Wave or S Wave Optional
• Geophone Housing: Reinforced Case for Land,Marsh or Snow
• Geophone Spike: Snow Base, Desert Tripod or 75mm Soil Spike
• Geophone Connector: Split Plate Clip, Mueller Clip, Kck, Kcl, Lck
• Lead-in Cable: 4.6mm to 7.8mm Optional
• Transport Package: Standard Export Carton
• Specification: 1x1
• Trademark: SEIS TECH
• Origin: China
• HS Code: 9015800090
• Production Capacity: 50, 000sets/Year

Product Description

Geophone 28Hz with Reinforced Land Case is an ideal choice for shallow seismic survey and it is mostly widely used in coalmine geological prospecting and exploration with the following features:

* Good parameter consistency.

 

* Firm mechanism structure.
 

* Excellent sealability and stability.
 

* Vertical geophone, horizontal geophone are available which are also suitable for three component applications.
 

* Reinforced land case and spike are specially designed for rugged fields.
 

* Assorted geohone connectors and geophone cable are available.

* 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.

We supply 28Hz geophone element, single geophone, geophone array and multi geophone string with KCK connector, KCL connector, 408 connector, Kooter connector, MP16 connector, Split spring connector and Mueller clip connector optional as the lead connector.  Geophone leader cable from O.D 4.6mm to O.D 7.8mm available.

Type	ST-20DX, 28hz (Equivalent to GS-20DX,28hz)
Natural frequency ( Hz )	28±5%
Coil Resistance (ohms)	395±5%
Open circuit damping	0.27±5%
Damping with Shunt Resistor	0.552±5%
Calibration Shunt Resistor(ohms)	1000
Open Circuit Intrinsic Voltage Sensitivity(V/m/s)	39.0±5%
Sensitivity with Shunt Resistor(V/m/s)	28.0±5%
Harmonic Distortion ( % )	≤0.2
Typical Spurious Frequency ( Hz )	≥350
Moving Mass ( g )	11.0
Max.coil excursion p-p (mm)	1.5
Max.tilt angle	20º
Element Diameter (mm)	25.4
Element Height (mm)	33.0
Element Weight (g)	100.0
Operating Temperature(ºC)	--45ºC to + 100ºC
Warranty Period	3 years
- All parameters specified herein are rated at a temperature 20ºC±2ºC.
- 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.