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
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
ADC sampling rate 1, 10, 50, 100, 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 5.3 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 10 - 30 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