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| Accuracy: | <1mm |
| Horizontal Line: | 1 |
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Land cased geophone 5Hz is an ideal choice for deep seismic survey, nodal system and single point acquisition in landslide monitoring, shallow exploration in urban areas, natural seismic observing, background notice collecting, and etc.
| 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 | >=150Hz |
| Moving Mass | 22.70g |
| Max.coil excursion p-p | 3mm |
| Max.tilt angle | 10º |
| Element Diameter | 32.0mm |
| Element Height | 44.0mm |
| Element Weight | 166g |
| Operating Temperature | -40ºC to + 80ºC |
| Warranty Period | 2 years |
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