Broadband seismometer CME-4211

CME-4211 is a three-component broadband seismometer well suited for rapid deployment in arrays, monitoring of structures, and for permanent installation in locations with the background noise higher than the New Low Noise Model. 

This easy-to-install, very rugged instrument does not require any maintenance, mass locking and centering. This model is ideal for portable applications, demanding the combination of high performance, low power consumption, compact size and low-cost. 

1-component (vertical or horizontal) version of the 4211 model is available. 

The CME-4211 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 0.033 Hz (30 sec) - 50 Hz
Sensitivity 2000 V/(m/sec)
Clip level ± 10V (5 mm/sec)
Self noise at 1 Hz 8.9 nm/sec (17.8 µV)
Dynamic range 112 dB
Nonlinearity 0.5 %
Sensitivity axes Vertical, North, East
Supply voltage 12 - 24 V Nominal (10.5 - 30 V permissible)
12 V Nominal (9 - 16 V permissible)
Power consumption 28 mA
8 mA (low power)
Temperature range -40...+55°C
Maximum installation tilt ±15°
Output impedance 1000 Ohm
Cold-start time 10-30 min.
Leveling, mass locking none required
Case connectors Russian PC-10TB type, 10 pin
Delivery set 1.5 meter cable, bubble level, handle, three feet
Case material Aluminum
Dimensions 180 x 180 mm (including handle, diameter x height)
Weight 4.3 kg