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CME-4211-BH150

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Description

CME-4211-BH150 is an analog, 3-component, low-noise broadband borehole seismometer. It permits installation to boreholes under water or in dry conditions up to 250 m depth and is suitable for permanent and long-term installations. It comes with a hermetic connector and lifting ring. The unit does not require maintenance, locking, and centering.

FIELDS OF APPLICATION

  • SEISMIC MONITORING NETWORKS
  • WEAK MOTION MEASUREMENTS
  • SEISMOLOGICAL RESEARCH
  • EARTHQUAKE DETECTION AND MEASUREMENT
  • MICRO ZONING
  • BOREHOLE SEISMIC NETWORKS

Spesification

Spesifications
Frequency range0.033 Hz (30 sec) - 50 Hz
Sensitivity2000 V/(m/sec)
Clip level5 mm/sec
Self noise at 1 Hz8.9 nm/sec (17.8 µV)
Dynamic range112 dB
Nonlinearity0.5 %
Sensitivity axesVertical, North, East
Supply voltage12 V Nominal (10.5-16 V permissible)
Power consumption25 mA
Temperature range-40...+55°C
Maximum installation tilt±15°
Dimensions105 x 303 mm (diameter x height including lifting ring)
Weight4.3 kg
Case materialStainless steel, waterproof, depth down to 15 m
Max. underwater depth250 m
Output impedance1000 Ohm
Cross-axes sensitivity-60 dB
Cold-start time10 - 30 min
Leveling, mass lockingnone required
Case connectorsRussian RS-10 type 10-pin connector with additional hermetic sealing
Delivery setLifting ring, 3 feet, pin
Maximum output swing±10 V, differential output

Features

  • Frequency Range: 0.033 Hz (30 Sec) – 50 Hz
  • Sensitivity: 2000 V / (m/sec)
  • Clip Level: 5 mm / Sec
  • Noise Level (1 Hz): 8.9 nm / Sec (17.8 uV)
  • Dynamic Range: 112 dB
  • High Performance
  • Works Up to 250 m Depth

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