LGT-20DS Seismic Geophone

Seismic Geophone

Instruction:

LGT-20DS seismic Geophone is compatible with LGT-20D conventional seismic geophone and its spurious response is greater than 250 Hz for extended clean band width. Its typical string distortion is less than 0.1%. it can be installed in variety of LGT geophone cases.

Features:

It features stable performance, high fidelity and consistent quality in conventional industrial of coal, Petroleum and natual gas exploration. LGT2119 geophones strings are used in a various applications that are far removed from their original applications as earthquake detectors, engineering vabrations, perimeters defensing.

Suitable Seismic Geophones:

Type	LGT-32CT	LGT-20D10S
Natural Frequency (Hz)	10±2.5%	10±2.5%
Open Circuit Damping	0.316±2.5%	0.3±2.5%
Close Circuit Damping	0.7±2.5%	0.7±2.5%
Intrinsic Voltage Senditivity (V/cm/s)	0.275±2.5%	0.28±2.5%
Sensitivity with Shunt Resistance (V/cm/s)	0.197±2.5%	0.2±2.5%
Coil Resistance	395±2.5%	395±2.5%
Close Direct Current Resistance	283±2.5%	283±2.5%
Harmonic Distortion	≤0.1%	≤0.1%
Typical Spurious Frequency	≥250	≥250
Moving Mass (g)	11.2	11
Coil Excursion P-P	1.5	1.5
Maintains Fn Specifications to Tilt Angle	≤20	≤20
Core Unit Diameter (mm)	25.4	25.4
Core Unit Height (mm)	33	33
Core Unit Mass (g)	87	87
Operating Temperature(℃)	-40 to +90	-40 to +90
Warranty (year)	3	3

*Longet Equipment Co., Ltd can customize different kind of seismic geophones to meet all the customer's various applications.

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