Seismometer CME-6111ND

CME-6111ND is a digital 3-component low-noise broadband seismometer with a force feedback. A bandwidth of up to 60 sec provides recording of the most remote seismic events. 

This seismometer combines the low-noise molecular-electronic sensing element (transducer) and the electrodynamic feedback that result in a very flat response over a wide frequency range, a high dynamic range and a greatly improved time and temperature stability of the parameters. 

This model is very rugged and does not require any special means or procedures for transportation and installation. The only procedure to start the operation is to place the seismometer on a rigid horizontal surface, turn the power on and wait for several minutes. 

This seismometer can be used in various applications such as seismic observatories, seismological surveys, seismic microzoning and passive broadband seismic exploration.

Characteristics Delivery and warranty

Frequency range 0.016 Hz (60 sec) - 50 Hz
Sensitivity 2000 V / (m/sec)
Clip level 7.5 mm/sec
Self noise at 1 Hz 1.4 nm/sec (2.8 µV)
Dynamic range 137 dB at 1 Hz
Nonlinearity 0.2 %
Sensitivity axes Vertical, North, East
Supply voltage 12 V Nominal (9-16 V permissible)
Power consumption < 1 W
Temperature range -40°C - +85°C - industrial SD-card
ADC sampling rate 1, 10, 50, 100, 125, 250, 500, 1000 Hz
Maximum installation tilt ±15°
Case connectors 14-pin MS3102E-type connector, SMA-A for active/passive GPS/GLONASS antenna, SMA-A for Wi-Fi antenna, Amphenol Straight Panel Mount USB-B
Dimensions 204 x 238 mm (diameter x height with handle)
ADC resolution 24 bit
Weight 7.8 kg
ADC noise performance 22 bits noise-free resolution at 100 sps
Gain coefficients 1, 2, 4, 8, 12
Case material Aluminum, stainless steel
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 -50 dB
Inbuilt sensors for device health monitoring temperature, main supply voltage
Cold-start time 5-15 min
Leveling, mass locking none required
Delivery set 1.5 m USB A-B cable, 3 m GPS antenna, Wi-Fi antenna, SMA A/B adapter, 32 GB microSD card installed, 0.6 m PC-10 USB cable, 1.5 m analogue cable
GNSS receiver GPS / GLONASS
GNSS timing accuracy < 1µs