Digital seismometer CME-4311ND

CME-4311ND is a digital 3-component low-noise broadband seismometer. A bandwidth of up to 60 sec provides recording the most remote teleseismic occasions. With its reasonable price, the seismometer can be used for most applications as an optimal solution for a price/quality ratio. 

CME-4311ND is excellent not only for permanent installations but also for field seismological surveys through the model’s integrated digital recording system, compact size, light weight, rugged case, easiness in operation and low power consumption.

Characteristics Delivery and warranty

Sensitivity axes Vertical, North, East
Clip level 5 mm/sec
Frequency range 0.016 (60 sec) - 50 Hz
or by customer specification
Dynamic range at 1 Hz 121 dB
Cross-axes sensitivity -60 dB
Non-linearity at 1 Hz1 0.5 V / (m/sec)
Temperature range -40°C - +55°C - extended range
Supply voltage 12 V Nominal (9-36 V Optional) or 5 V from USB
Power consumption < 600 mW
Cold-start time 10 - 30 min
Maximum installation tilt ±15°
Leveling, mass locking Not required
Noise performance -155 dB (relative to 1 m/sec2√Hz)
Intrinsic noise 35.6 nm/sec (142.4 µV) for 0.0167 – 50 Hz bandwidth
Connector type 10-pin PC-10 multipurpose connector SMA-A for active/passive GPS/GLONASS antenna SMA-A for Wi-Fi antenna Amphenol Straight Panel Mount USB-B
Delivery set 1.5 m USB A-B cable 3 m GPS antenna Wi-Fi antenna SMA A/B adapter 32 GB microSD card installed 0.6 m PC-10 USB cable 1.5 m Analogue cable
Weight 5.3 kg
Dimensions 180 x 195 mm (diameter x height, including handle)
Case Aluminum
Data transfer USB 2.0, Wi-Fi
Data storage 32 Gb (flash)
Inbuilt sensors for device health monitoring Temperature, supply voltage
ADC noise performance 20.4 ENOB at gain = 1
GNSS timing accuracy < 1µs
ADC sampling rate 1, 10, 50, 100, 250, 500, 1000 Hz
GNSS receiver GPS / GLONASS
Data recording mode Continuous, Schedule
Gain coefficients 1, 2, 4, 8, 12
Data recording format Internal binary, miniSeed, SEG converters provided
ADC sampling rate 24 bit