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
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