High Sensitivity Geophone 5Hz for Deep Seismic Survey and Nodal System

Product Description

ST-5N geophone is a long coil travel version geophone with high sensivitivy of 86.0V/m/s. 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-5N geophone can be supplied for vertial and horizonta orentation, which is an ideal choice for the shear-wave horizontal elements, partnering the ST-5N vertical geophone in a 3-component package. - Long travel version of the ST-5N geophone.
- Special orientations upon request byond the normal verical and horizotnal options.
- Widely used in industral vibration-mnitoring systems.
- Ideal choice for shear-wave horizontal elements.
- Rugged construction with precious-metal, rotating-coil contacts.
- High open circuit intrinsic voltage sensitivity of 80.0V/m/s.
- 1-year limited warranty on baic element exclusive of high voltage, lightening or physical abuse.

Type	ST-5NA
Natural frequency ( Fn )	5Hz ± 7.5%
Open Circuit Damping	0.60 ± 7.5%
Coil resistance	1850Ω ± 5%
Open circuit sensitivity	80.0 V/m/s ± 5%
Harmonic distortion	<=0.1%
Typical spurious Frequency	>=130Hz
Moving Mass	22.80g
Max.coil excursion p-p	3mm
Max.tilt angle	10º
Element Diameter	32mm
Element Height	44mm
Element Weight	166g
Operating Temperature	-40ºC to + 80ºC
Warranty Period	2 years
All parameters specified herein are rated at a temperature 20ºC±2ºC. 2-year limited warranty on basic element exclusive of high voltage, lightening and physical abuse.

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