EGL Equipment services Co.,LTD
EGL Equipment services Co.,LTD EGL is a professional geophone manufacturer .
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High Sensitivity Geophone 4.5Hz
| Type | EG-4.5-HS |
| Nature Frequency Hz | 4.5Hz±17% |
| Distortion | ≤0.2%(@12Hz&0.7 in/s peak-peak coil-to-case velocity) |
| Opening Circuit Damping | 0.3±20% |
| Damping with 20KΩ shunt resistor | 0.596±20% |
| Coil resistance | 2000 Ω±5% |
| Resistance with 20KΩ shunt resistor | 1818 Ω±5% |
| Sensitivity | 90V/m/s±10% |
| Sensitivity @59.6% damping | 81.8V/m/s±10% |
| Moving Mass g | 22g |
| Coil travel (mm) | 3mm |
| Diameter | 31.8mm |
| Height | 33mm |
| Weight | 110g |
| Operating Temperature Range | -40℃～+80℃ |
| Limited Warranty Period | 1 year |
All parameters specified here in are rated at a temperature 20℃±2℃ .