Broadband Seismometer Model 4111
•
60 sec - 50 Hz frequency band; The MET seismometer Model 4111 features the noise level 10-12 dBs below than the Model 4011, with the wider frequency range. It's well suited both for permanent and portable installation. This easy-to-install, very rugged 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 Low-Noise Model. |
TECHNICAL SPECIFICATIONS
Transducer Type |
Molecular Electronic Transfer |
|---|---|
Sensitivity |
4000 V/m/sec - differential output |
Clip level |
±5 mm/s |
Standard Bandwith |
60 s - 50 Hz |
Self Noise |
See Graph Below. |
Dynamic range |
122 dB |
Mass Lock |
NOT REQUIRED |
Mass Centering |
NOT REQUIRED |
Maximum Installation Tilt |
±15 ° |
Mechanical Resonances |
NONE |
Power Supply |
Standard 12 Vdc noml; 20 mA 6-16 Vdc; 5 mA |
Housing Material |
Aluminum |
Case Diameter |
180 mm |
Case Height |
140 mm |
Weight |
5.1 kg |
Operating temperature range |
-12 to + 55 °C |
CME4111 noise
levels vs. USGS Low Noise Models
