IGU-16HR 3C 2Hz ETH

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IGU-16HR 3C 2Hz ETH

High-Resolution 3C Seismic Node with Low-Frequency and Ethernet Real-Time Data
Precisely Unveiling the Subsurface

Main Features

Integrated Sensor, Digitizer, Communication and Control Capabilities for Efficient and Stable Field Deployment

Built-In DT-SOLO 2Hz Geophone Accurately Captures Deep Low-Frequency Signals

Precision Manufacturing Ensures Accurate and Consistent Instrument Transfer Function

IP68-Rated, Low Power, Long Battery Life, and Ultra-Wide Operating Temperature, Ensuring Reliability in Harsh Conditions

Improves Signal-To-Noise Ratio, Enabling Detection of Ultra-Weak Seismic Signals

Supports Ethernet Communication for Remote Control and Real-Time Data Transmission

Open Data Transmission Protocol Allows Seamless Integration with Mainstream Processing Platforms

Enhanced Circuit Protection Significantly Extends Instrument Lifespan

Peripheral Equipment

• Data download cable with parallel USB 2.0 high-speed data transfer;
• 4-port USB Hub supporting simultaneous data download from 4 devices;
• Power adapter supports 4A current charging;
• Combined power and Ethernet cable supports 7–15V DC input; RJ45 connector compatible with various data transmission modules.

Specifications

General Specification

Channels: 3
Dimensions: φ158 x 160 mm (without leveling nuts)
Weight: 4.8 kg (including battery and leveling nuts)
Protection Rating: IP68
Operating Temperature: -40℃ ~ +70℃
Charging Temperature: +3℃ ~ +45℃
Charging Time: < 7.5 hrs
Battery Life @ 25℃:
- 40 days @ 2 ms, 24 hours of operation per day, offline mode;
- 0 days @ 2 ms, 12 hours of operation per day, offlinef mode;
- 7 days @ 2 ms, 24 hours of operation per day, Ethernet transmission mode
Memory: 64 GB (expandable to 128 GB)
Data Transmission: Supports Ethernet data transmission
Data Download: USB 2.0
External Power: 7-15 VDC
GNSS Mode: Support GPS, BEIDOU, GLONASS, with single- mode and dual-mode operation

Channel Speciﬁcations

(Unless otherwise speciﬁed, all values are at a sampling rate of 2 ms, 31.25 Hz, and +25℃)
ADC Resolution: 32 bits
(The ADC has a resolution of 32 bits, with noise resolution not exceeding 24 bits)
Sampling Rate: 0.25, 0.5, 1, 2, 4, 8, 10, 20 ms
Pre-Ampliﬁer Gain: 0 dB to 36 dB, 6 dB increments
Anti-Aliasing Filter: 206.5 Hz @ 2 ms (82.6% of Nyquist); Selectable - Linear Phase or Minimum Phase
DC Blocking Filter: 1 Hz to 10 Hz, in 1 Hz increments or DC Remove
Maximum Input Signal: ±2.5 V peak @ 0 dB gain
Instantaneous Dynamic Range: 125 dB @ 2 ms, 0 dB gain
Equivalent Input Noise: 0.18 μV @ 2 ms, 18 dB gain
Total Harmonic Distortion: < 0.0002% @ 0 dB gain
Common Mode Rejection: > 100 dB
Gain Accuracy: < 1%
GPS Time Standard: 1 ppm
Timing Accuracy: ±10 μs, GPS Synchronization
Channel Crosstalk: < -110 dB
Inter-Channel Phase Difference : < 0.1 ms
Lateral Vibration Suppression: Better than 0.1%
Inter-Channel Amplitude Consistency: 5%
System Dynamic Range: 145 dB
Frequency Response: 0-1652 Hz @ 0.25 ms

Geophone Specifications

(Unless otherwise speciﬁed, all parameters are tested at +20℃ with the vertical core in vertical conditions and the horizontal core in horizontal conditions)
Natural Frequency: 2Hz
Distortion: ≤ 0.30% @ 12 Hz, (0° ~ 7.5° ) vertical tilt, (0° ~ 0.5° ) horizontal tilt
Damping: 0.70
Sensitivity: 260 V/m/s (6.60 V/in/s)