Low-noise force-balance broadband seismometer CME-6211

Keeping up with parameters of CME-6111, the three-component low-noise force-balance broadband seismometer CME-6211 has a significantly lower sensitivity toward the atmospheric pressure and temperature variations in a lower frequency range. 

This model's sensors are equipped with a double-shielded isolation from unwanted external actions. 

The CME-6211 seismometer does not require mass centering or any other special techniques during installations. This model is designed for using mostly as a part of permanent seismic stations and is the most ultimate one among our seismometers.

The CME-6211 frequency characteristic with the poles and zeros presentation is available at the link on the website of Incorporated Research Institutions for Seismology (IRIS).

Characteristics Delivery and warranty

Frequency range 0.008 Hz (120 sec) - 50 Hz
Sensitivity 2000 V/(m/sec)
Clip level ±15 V (7.5 mm/sec)
Self noise at 1 Hz below NLNM in 0.1-5 Hz frequency range
Dynamic range 140 dB
Nonlinearity 0.2 %
Sensitivity axes Vertical, North, East
Supply voltage 12 V Nominal (10.5 - 16 V permissible)
Power consumption not over 35 mA
Temperature range -40...+55°C
Maximum installation tilt ±15°
Output impedance 1000 Ohm
Cold-start time 15 - 45 min
Leveling, mass locking none required
Case connectors Amphenol MS3102E (10/14 pins)
Delivery set 1.5 meter cable, bubble level, handle, three leveling feet, protective cap for connector
Case material Double-shielded isolation, aluminum
Dimensions 254 x 260 mm (dimensions including handle, diameter x height)
Weight 12.2 kg