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| Brand Name : | Gold | 
| Model Number : | 1C | 
| Price : | Negotiated | 
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Supply Ability : | 1 set per 5 days | 
| Delivery Time : | 5-8 work days | 
Portable Nodal Seismograph
Introduction
Portable Nodal Seismograph is widely used in various fields of oil and gas, coal resource and engineering 2D and 3D seismic exploration.
Features:
* The acquisition station uses 32-bit ultra-high precision Σ-Δ ADC with ultra-low noise level.
* Built-in GPS and high precision clock, can maintain long-term synchronization.
* Built-in geophone integrated design, small size, light weight.
* Use the charging cabinet for charging and data export simultaneously.
* Mobile APP can be used to carry out real-time quality monitoring at the acquisition site and record instrument operation and deployment information.
* Compatible with active source and natural source exploration methods.
* The exploration system supports more than 100,000 channels.
* Support SEG-2, SEG-Y, SEG-D, SAC, Mini-SEED and other data formats.
* Equipped with 32 channel charging and data recovery cabinet, charging and data export at the same time.
Technical Specification
| Instrument index | |
| Parameter | index | 
| Number of channels | 1 | 
| Sampling rate | 0.25ms,0.5ms,1ms,2ms,4ms | 
| Preamplifier gain | 0-24dB(6db step) | 
| Low cut filter | 1Hz, go to DC or off | 
| Anti-aliasing filter | 206.5Hz@2ms (82.6% Nyquist frequency) selectable maximum phase or minimum phase | 
| Maximum input @ 0db | 2.5VpeaK | 
| Equivalent input noise@12dB | 0.31uV@2ms | 
| Instantaneous dynamic range@12dB | 124dB@2ms | 
| Total dynamic range | 140dB | 
| Time accuracy | ±10us | 
| Internal storage | expandable from 8GB to 32GB | 
| Built-in GPS | GPS, Beidou (simultaneous reception) for timing and positioning | 
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| Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd | 
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