CME-4311

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.

Brochure

Characteristics:

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
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	-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)
Weight	4.6 kg
Case material	Aluminum
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 pigtail cable, bubble level, handle, three feet