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 timing accuracy < 1µs
Case material Aluminum
Dimensions 180 x 195 mm (diameter x height, including handle)
Weight 5.3 kg