The compact broadband low-noise seismometer CME-4311 is well suited both for permanent and portable installations.
This easy-to-install, very reliable instrument does not require any maintenance, mass locking and centering. The instrument offers the cost-effective solution for installations with the noise level close to a Low-Noise Model.
1-component (vertical or horizontal) version of the CME-4311 model is available.
The CME-4311 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||0.016 Hz (60 sec) - 50 Hz|
|Sensitivity||2000 V / (m/sec)|
|Clip level||± 10V (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 (10.5-30 V permissible)
12 V Nominal (9-16 V permissible)
|Power consumption||28 mA
8 mA (low power)
|Temperature range||-12°C - +55°C - standard range
-40°C - +55°C - extended range
|Maximum installation tilt||±15°|
|Dimensions||180 x 140 mm (dimensions including handle, diameter x height)|
|Output impedance||1000 Ohm|
|Cold-start time||15-45 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|