• Adopt the latest high-speed, high-precision real 24-bit A/D converter. Maximum sampling interval for 48 channels in simultaneous sampling is 31.25us, reaching international advanced level.
• Maximum sampling interval for single channel is up to 10us.
• Not only use the advanced wave filter with ultra-low distortion performance, better than 120 dB, with external suppression (cut-off frequency automatically changes with sampling frequency); meanwhile, various digital wave filters (high, low, band pass wave filters) are set in the software, with their cut-off frequency being set artificially.
• Brand-new overall structure design, which allows more reasonable view to facilitate the operation.
• Can easily complete seismic data acquisition, and data processing
• Support coverage measurement;
• Provided with overlaying switch and overlaying cable manufactured by our factory, the application in various reflection, refraction, reflex measurement for field exploration can be facilitated, thus greatly improving the efficiency of field work.
• DZQ48 high-resolution seismograph can support 12-channel and 24-channel overlaying measurement without external configuration
• Built-in unique instrument detection system. Self-checking acquisition, data computing, self-checking report can automatically generated the output.
• Field make-and-break test for geophone and jug lines, full waveform noise monitoring
• Support multiple (at Windows interface) processing software: Superficial reflex processing, refraction, surface wave shear wave package, blasting, pulsating, high-density seismic imaging processing software
• Clock: Annual timing clock, file recording time will be stored in along with parameters.

Main Technical Specifications

• Computer Configuration: Military Grade PC104 Control Computer P4 (933MHz); Memory: 256MB; Hard Disk: no smaller than 80GB; Operating System: win-XP
• Display: 1024x768 dot matrix, high brightness TFT (true color) LED.
• Input Device: Equipped with suitable field-use membrane keyboard and touch screen; can also be connected with PS / 2 computer keyboard and mouse; provided with handwriting tablet.
• Interface: Dual USB interface, PS/2 keyboard, mouse interface, parallel port, Ethernet port, etc.
• Removable Storage: USB disk, or adopting mobile hard disk drive, USB mobile drive, etc.
• Frequency Response Range: 0.1Hz~4kHz
• Noise: smaller than 1 μV at full-frequency state
• Sampling Time Delay: 0~9999ms
• Conformity: amplitude conformity better than ±0.02%; phase conformity: better than ±0.01ms
• Sampling Rate: 10μs/31.25μs/62.5μs/125μs/250μs/500μs/1 ms/2 ms/4 ms/8 ms/16ms/32ms-400ms several taps
• Number of Sampling Points: 512, 1024, 2048, 4096, 8192, 16384, etc., maximum record up to 32768;
• Preamplifier Gain: Every six channels as a group, optionally chosen by software: 64 times (36dB), 16 times (24dB), 4 times (12dB), 1times;
• A/D Converter: Adopt the latest, ultra high speed Σ-Δ24 bit A/D converter;
• Alias Filter: Automatic tracking along with the sampling rate; -3dB, down to 120dB at the place with 0.216 times of sampling rate; and provided with various digital wave filters, cutoff frequency (at the place with -3dB) if required
• Supported Data Format: SEG-2, SEG-Y, CSP
• Trigger Mode: Internal and external triggered by hammer switch; triggered via blasting, and electric spark; also triggered by wire-breaking or connecting
• Power Supply: 12V±20% battery-powered; smaller than 4 amps (48 channels, 5 amps when LCD working in extra-brightness).
• Service Environment: -10℃~ +55 ℃; Humidity 90%RH
• Volume: 390×270×190mm
• Weight: 18kg