Digital seismometer CME-4311ND
CME-4311ND is a digital 3-component low-noise broadband seismometer. A bandwidth of up to 60 sec provides recording the most remote teleseismic occasions. With its reasonable price, the seismometer can be used for most applications as an optimal solution for a price/quality ratio.
CME-4311ND is excellent not only for permanent installations but also for field seismological surveys through the model’s integrated digital recording system, compact size, light weight, rugged case, easiness in operation and low power consumption.
Characteristics Delivery and warranty
| Frequency range | 0.016 Hz (60 sec) - 50 Hz |
| Sensitivity | 2000 V / (m/sec) |
| Clip level | 5 mm/sec |
| Self noise at 1 Hz | 2.8 nm/sec (5.6 µV) |
| Dynamic range | 122 dB |
| Sensitivity axes | Vertical, North, East |
| Supply voltage | 12/24 V Nominal (9-36 V permissible) 5V from USB (4.5-5.5 V permissible) |
| Power consumption | 27 mA 8 mA - low power |
| Temperature range | -12°C - +55°C - standard range -40°C - +55°C - extended range |
| Maximum installation tilt | ±15° |
| ADC sampling rate | 1, 10, 50, 100, 125, 250, 500, 1000 Hz |
| ADC resolution | 24 bit |
| Dimensions | 180 x 195 mm (diameter x height, including handle) |
| Weight | 5.3 kg |
| ADC noise performance | 22 bits noise-free resolution at 100 sps |
| Case material | Aluminum |
| Gain coefficients | 1, 2, 4, 8, 12 |
| Data recording mode | Continuous, Schedule |
| Data recording format | Internal binary, miniSeed, SEG converters provided |
| Data storage | microSD 32 GB |
| Data transfer | USB 2.0, Wi-Fi |
| Cross-axes sensitivity | -60 dB |
| Inbuilt sensors for device health monitoring | temperature, main supply voltage |
| Cold-start time | 10 - 30 min |
| Case connectors | PC-10TB (russian made), USB-B, 2хSMA-F for Wi-Fi and GPS |
| Leveling, mass locking | none required |
| Delivery set | GPS antenna, Wi-Fi antenna, set of cables, bubble level, three legs |
| GNSS receiver | GPS / GLONASS |
| GNSS timing accuracy | < 1µs |