Data logger NDAS-8226

NDAS-8226 is a seismic data acquisition system mostly designed for autonomous data recording in field environments. 

NDAS-8226 is based on a 6-channel 24-bit resolution ADC ensuring low noise and low power consumption. The instrument uses a USB and Wi-Fi connection for data transfer and system configuring and a 32 Gb internal storage memory for offline recording.

NDAS-8226 includes a precision regulated VCO quartz crystal with the real-time GPS/GLONASS clock adjustment. This provides synchronization accuracy better than an error of timing of 1 µsec. The case is rugged and waterproof. 

The instrument does not require any maintenance and is well-suited for field seismic and seismological surveys as well as for permanent seismic stations. NDAS-8226 is perfectly compatible with R-sensors' products of CME, MTSS and METR series as well as any third-party equipment.

Characteristics Delivery and warranty

Sensitivity axes
Clip level 5 mm/sec
Frequency range 0.033 (30 sec) - 50 Hz
or by customer specification
Dynamic range at 1 Hz 113 dB
Cross-axes sensitivity -60 dB
Non-linearity at 1 Hz1 0.5 V / (m/sec)
Temperature range -12°C - +55°C - standard 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 15-45 min
Maximum installation tilt
Leveling, mass locking
Noise performance
Intrinsic noise
Connector type 2 x 10-pin IP-68 analogue connectors 7-pin IP-68 power connector SMA-A for active/passive GPS/GLONASS antenna SMA-A for Wi-Fi antenna Amphenol Straight Panel Mount USB-B
Delivery set Standard 1.5m USB A-B cable 3m active GPS antenna Wi-Fi antenna SMA A/B adapter 32GB microSD card installed Operation manual
Weight 1 kg
Dimensions 160 x 140 x 80 mm
Case Aluminum, waterproof
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
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