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
|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|
|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|
|Dimensions||160 x 140 x 80 mm|
|ADC sampling rate||1, 10, 50, 100, 250, 500, 1000 Hz|
|GNSS timing accuracy||< 1µs|
|GNSS receiver||GPS / GLONASS|
|ADC noise performance||20.4 ENOB at gain = 1|
|Gain coefficients||1, 2, 4, 8, 12|
|Data recording mode||Continuous, Schedule|
|Data recording format||Internal binary, miniSeed, SEG converters provided|
|Inbuilt sensors for device health monitoring||Temperature, supply voltage|
|Data transfer||USB 2.0, Wi-Fi|
|Data storage||32 Gb (flash)|
|ADC sampling rate||24 bit|