SM-6 B Coil Equivalent 4.5Hz Geophone Sensor (ST-4.5N) is a long coil travel version geophone, which is equivalent to SM-6 B coil 4.5hz geophone. The extra coil travel offers an advantage for higher tilt requirements and where larger amplitude signals may be encountered, for example, in industrial vibration monitoring.
The ST-4.5N geophone can be supplied for vertical and horizontal orientation, which is an ideal choice for the shear-wave horizontal elements, partnering the ST-4.5N vertical geophone in a 3-component package.
We supply ST-4.5N geophone coil, geophone element, single land cased geophone, 3-component geophone, geophone array and multi-geophone string with split spring connector, Mueller clip connector, 408 screw fit connector & push fit connector, KCK connector or KCL connector optional. Lead wires from O.D 4.6mm to O.D 7.8mm available.
Click here and download data sheet of ST-4.5N geophone. Or contact us to get special discounts.
|Type||ST-4.5N( Equivalent to SM-6 B-Coil 4.5hz )|
|Natural frequency ( Hz )||4.5±10%|
|Coil resistance (ohms)||375±5%|
|Open circuit sensitivity (V/m/s)||28.8±5%|
|Harmonic distortion ( % )||≦0.2|
|Typical spurious Frequency ( Hz )||≧240|
|Moving Mass ( g )||11.3|
|Max.coil excursion p-p (mm)||4|
|Element Diameter (mm)||25.4|
|Element Height (mm)||36|
|Element Weight (g)||86|
|Operating Temperature( ℃ )||-40℃ to + 100℃|
|Warranty Period||3 years|
|● All parameters specified herein are rated at a temperature 20℃±2℃.
● 3- year limited warranty on basic element exclusive of high voltage, lightening and physical abuse.