| Customization: | Available |
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| Accuracy: | <1mm |
| Horizontal Line: | 1 |
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Ground sensor 4.5Hz geophone (P/N: ST-4.5N) is a long coil travel version sensor, 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 ground sensor 4.5Hz 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.
- Long travel version of the ST-4.5N geophone.
- Special orientations upon request beyond the normal vertical and horizontal options.
- Widely used in industrial vibration-monitoring systems.
- Ideal choice for shear-wave horizontal elements.
- Rugged construction with precious-metal, rotating-coil contacts.
- 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.
We supply ST-4.5N geophone coil, geophone element, single geophone, 3-component geophone, geophone array and geophone string with split spring connector, Mueller clip connector, 408 screw fit connector & push fit connector, KCK connector and KCL connector optional. Lead wires from O.D 4.6mm to O.D 7.8mm available.
| Type | ST-4.5N( Equivalent to SM-6 B-Coil 4.5hz ) |
| Natural frequency ( Hz ) | 4.5±10% |
| Damping | 0.6±5% |
| Coil resistance (ohms) | 375±5% |
| Open circuit sensitivity (V/m/s) | 28.8±5% |
| Harmonic distortion ( % ) | <=0.2 |
| Typical spurious Frequency ( Hz ) | >=160 |
| Moving Mass ( g ) | 11.3 |
| Max. coil excursion p-p (mm) | 4 |
| Max. tilt angle | 20º |
| Element Diameter (mm) | 25.4 |
| Element Height (mm) | 36 |
| Element Weight (g) | 86 |
| Operating Temperature( ºC ) | -40ºC to + 100ºC |
| Warranty Period | 3 years |
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