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Home > Products > High Resolution Versatile Seismic Recording System - DAQLink 4
Seismic Recorder Systems

High Resolution Versatile Seismic Recording System - DAQLink 4

Supplied By: Seismic Source Company, USA

Rs. 0.00

DAQLink 4 - High Resolution Versatile Seismic Recording System

DAQlink 4 is the fourth generation nodal seismograph system. Each DAQlink 4 node can have up to 24 channels. Multiple nodes can easily be added to achieve a 1000+ channel Recording System. It can be configured as a stand-alone monitoring system, a refraction system or a seismic reflection system.


Seismic Source's proprietary Vscope and SrcSig software provide detailed analysis and storage of the seismic signals. This seismograph utilizes industry standard Ethernet communication allowing easy setup for Wireless or remote autonomous Cell Phone operation.


Features:

Cutting Edge Performance

    • 1 to 24 channels per seismograph node

    • High-Speed 24bit ADC – up to 64,000 sps

    • Extremely Low power~0.13 watts per channel

    • Wide Bandwidth – DC to 20 KHz

    • Low Distortion – 0.000075% THD @ 500 sps

    • Wide Dynamic Range – > 124 dB @ 500 sps

    • Low Noise – < 0.2 µV RMS @ 500 sps

    • Includes GPS time and location synchronization

Multiple Time Synchronization Modes

    • GPS Clock Discipline for Autonomous Recording

    • VHF/UHF Radio for applications without GPS

    • Wired synchronize multiple DAQlink via cables

Multiple Trigger Modes

    • Time Break or Hammer hits

    • Low level Geophone trigger

    • Continuous Recording using GPS time stamps

    • Continuous with Event Monitoring using LTA/STA algorithm

Multiple Data Storage Methods

    • 16 Gbytes internal memory card standard

    • External USB-storage for real-time file backup and data offloading

Built-in Ethernet Network

    • Compatible with cables, Wi-Fi and Cellular Data

    • Easily Network Multiple DAQlinks for large channel projects

Built-in Acceptance Testing

    • Instrument Tests

    • Sensor Tests

Operation Modes:

Operate as Stand-Alone Seismograph

    • Small, lightweight unit for small, low cost operations

    • ReMi, Refraction, Reflection, MASW

Combine DAQlinks for 1000's of channels

    • Use wired or Wi-Fi network for a large system

    • Vibroseis, Weight Drop, Dynamite, Air Gun

Passive Monitoring

    • True Continuous Recording

    • Use Cellular Data Modem for remote access of seismic data and system status

    • Compatible with surface and downhole sensors

Automated Event Detection

    • Continuously record and store data

    • Use LTA (Long Term Average) or STA (Short Term Average) for event monitoring

    • Includes automated email notifications as events are detected

Includes Advanced Proprietary DAQlink Software:

Functions:

    • Configures DAQlink 4 for Acquisition

    • Monitors Seismograph Operation

    • Offloads and Evaluates Data

Features:

    • Data Display

    • Analysis – Amplitude & Phase Spectra

    • RMS Noise and Signal Graphs

Features:

    • For larger systems, DAQlink 4 seismographs are compatible with the full line of iSeis Sigma Field Software, including Source Link & Sigma Observer.

Seismic Recording SystemsSeismic Recording Systems


DAQLink 4 Seismic Recording System Specifications

DAQLink 4 Electrical Specifications
Analog/Digital: 24 bit sigma delta converter
Anti-Alias Filters: 85% of Nyquist frequency
Low Cut Filter: User Selectable from 0.001 Hz to 120 Hz
Filter Type: Linear or Minimum Phase
Sample Rates: 125 to 64,000 sps
PreAmp Gains: x1 (0 dB) and x16 (24 dB)
Max Input: 6 Volts Peak-to-Peak (x1 Gain)
Bandwidth: DC to 20 kHz
Power: Typically 0.13 watts per channel
Input Impedance: 100kΩ
Clock Sync: GPS, VHF/UHF or Wireline
Power Input: 9-27 Volts
DAQLink 4 Physical Specifications
No. of Channels: 24
Temperature: -40°C to +85°C
Humidity: 0 to 100%
Size: 280 x 250 x 40 mm
Weight: 2 kg
Data Storage (Internal 16GB CF): 120 hours (24 channels @ 2ms)
Data Storage (through Ethernet): Unlimited
Data Format: SEG-Y and SEG-2
LEDs: Network Connect, Network Data Status and Battery
Outer Case: Milled aluminium with O-ring seal, meets IP67 standard for water and dust resistance
DAQLink 4 Connectors Specifications
Ethernet: 10-pin Weatherproof
GPS: 6-pin Weatherproof
Trigger: 3-pin Weatherproof
Auxiliary Port: 19-pin Weatherproof
Seismic Data: 55-pin Weatherproof
USB Data Plug: 19-pin Weatherproof
DAQLink 4 Performance Specifications
Trigger Accuracy: 1 µs
Dynamic Range: Better than 124 dB
THD: 0.00008 %
Crosstalk: Better than -125 dB
Common Mode Rejection: Better than 100 dB
Noise Floor: < 0.2 µV RMS @ 2ms

Seismic Recording Systems

 


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