14Hz Geophone for Seismic Refraction with Assorted Geophone Base Interchangable

Product Description

14Hz geophone is a perfect option for seismic survey for buildings,bridges, dams, highways and railways, safety monitoring, engineering pulse measurement and other vibration analysis.
- Compatible with almost all types of seismographs and data acquisiton systems.
- With the options of geophone sensor, land geophone or water geophone optional.
- Assorted geophone bases are interchangable for applying on hard surface, soft earth or floopy snow land.
- With the diretion of P wave geophone, S wave geophone or 3D geophone optional.
- 3 Year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.
We supply 14hz geophone coil, geophone element, geophone sensor, single geophone and geophone array with KCK connector, KCL connector, 408 connector, Kooter connector, MP16 connector, Split spring connector and Mueller clip connector optional as the lead connector. Lead wires from O.D 4.6mm to O.D 7.8mm available.
- Custom geophone connector and lead wire applicable upon request.
- 20DX-14Hz geophones are also available.

Type	ST-14N (Equivalent to SM-4,14hz)	ST-20DX 14hz (Equivalent to GS-20DX,14hz)
Natural frequency ( Hz )	14 ± 5%	14±5%
Open circuit damping	0.2 ±5%	0.22
Damping with Shunt Resistor	0.6 ± 5%	0.51±5%
Open Circuit Intrinsic Voltage Sensitivity(V/m/s)	28.8	28.0
Sensitivity with Shunt Resistor(V/m/s)	18.2 ± 5%	20.0±5%
Coil Resistance (ohm)	375 ± 5%	395±5%
Harmonic Distortion ( % )	<0.2	≤0.2
Typical Spurious Frequency ( Hz )	>=240	≥250
Moving Mass ( g )	11.6	11.0
Max.coil excursion p-p (mm)	2.0	1.5
Max.tilt angle	20º	20º
Element Diameter (mm)	25.4	25.4
Element Height (mm)	32	33.5
Element Weight (g)	74	87.0
Operating Temperature(ºC)	- 40ºC to + 100ºC	- 45ºC to + 100ºC
Warranty Period	3 years	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.

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