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High Sensitivity Geophone 4.5Hz for S Wave and Shear Wave¹

Geographic Surveying Instrument Geopone String Geophone Array

SEIS TECH INC.

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Product Description TypeST-4.5B(Equivalent to SM-6/H-B 4.5Hz)Natural frequency ( Hz ) 4.5±0.5Open Circuit Damping 0.65±10%Coil resistance (ohms) 3500±5% Open circuit sensitivity (V/m/s)80±5%Harmonic distortion ( % ) <=0.3Moving Mass ( g )11.3Max. coil excursion p-p (mm) 4Max. tilt angle5oElement Diameter (mm) 25.4Element Height (mm) 36Element Weight (g) 86Operating Temperature( oC )-40oC to + 100oC Warranty Period 3 yearsAll 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.TypeST-4.5A Natural frequency ( Hz ) 4.5±0.5Frequency Response Range(Hz)5Hz to 1000HzOpen Circuit Damping 0.7±10%Coil resistance (ohms) 4100±5% Open circuit sensitivity (V/m/s)100±5%Harmonic distortion ( % ) <=0.6Moving Mass ( g )11.3Max. coil excursion p-p (mm) 4Max. tilt angle5oElement Diameter (mm) 25.4Element Height (mm) 36Element Weight (g) 86Operating Temperature( oC )-40oC to + 100oC Warranty Period 3 yearsAll 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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Geographic Surveying Instrument: High Sensitivity Geophone 4.5Hz for S Wave and Shear Wave

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