Digital seismometer CME-4211ND

CME-4211ND is a digital 3-component broadband seismometer. The rugged case includes a broadband seismometer and a 24-bit autonomous data acquisition system. 

With its small size and light weight, easiness in operation, mechanical reliability and low energy consumption, this seismometer can be an irreplaceable instrument for field geophysical surveys. While equipping permanent seismic stations, a reasonable price combined with recordings of broadband signals of long-distance earthquakes will be attractive. 

CME-4211ND is excellent for structural health monitoring as a part of timely or permanent deployment systems. In addition to the standard version designed for field surveys, the seismometer is also available for boreholes of over 108-mm diameter.

Click here for available downloads to operate CME-4211ND (via FTP connection)

Characteristics Delivery and warranty

Frequency range 0.033 Hz (30 sec) - 50 Hz
Clip level 5 mm/sec
Self noise at 1 Hz 8.9 nm/sec (17.8 µV)
Dynamic range 112 dB
Sensitivity axes Vertical, North, East
Supply voltage 12/24 V Nominal (9-36 V permissible)
Power consumption 800 mW
Temperature range -12°C - +55°C - standard range
-40°C - +55°C - extended range
ADC sampling rate 1, 10, 50, 100, 125, 250, 500, 1000 Hz
Maximum installation tilt ±15°
ADC resolution 24 bit
Dimensions 180 x 195 mm (diameter x height, including handle)
ADC noise performance 22 bits noise-free resolution at 100 sps
Weight 5.0 kg
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 5 - 15 min
Leveling, mass locking none required
Case connectors PC-10TB (russian made), USB-B, 2хSMA-F for Wi-Fi and GPS
Delivery set GPS antenna, Wi-Fi antenna, set of cables, bubble level, three legs
GNSS timing accuracy < 1µs
GNSS receiver GPS / GLONASS