Low-noise broadband digital seismometer CME-4311ND
CME-4311ND is a low-noise broadband digital 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 owing to its integrated digital recording system, compact size, light weight, rugged case, easiness in operation and low power consumption.
Click here for available downloads to operate CME-4311ND. If the FTP-connection fails, right-click to copy the link and open it with Windows Explorer.
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 |
| Nonlinearity | 0.5 % |
| Sensitivity axes | Vertical, North, East |
| Supply voltage | 12 - 24 V Nominal (9 - 36 V permissible) 5 V from USB (4.5 - 5.5 V permissible) |
| Power consumption | 27 mA 8 mA - low power |
| Temperature range | -40...+55°C |
| Maximum installation tilt | ±15° |
| Case connectors | PC-10TB (russian made), USB-B, 2хSMA-F for Wi-Fi and GPS |
| Gain coefficients | 1, 2, 4, 8, 12 |
| ADC sampling rate | 1, 10, 50, 100, 125, 250, 500, 1000 Hz |
| ADC resolution | 24 bit |
| ADC noise performance | 21.6 bits noise-free resolution at 100 sps |
| 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 |
| 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 |
| Case material | Aluminum |
| Dimensions | 180 x 195 mm (diameter x height, including handle) |
| Weight | 5.3 kg |