WZG-24C/48C Engineering Seismography

WZG-24C/48C engineering seismograph is the third generation instrument, which support window 8 system, and features multi-function, high-precision and stability. Seismic source for testing is from hammer, electric spark or explosion for hundreds meter depth. It applys for seismic surveys, as sheared wave velocity test, surface wave exploration, pier foundation test, ground micro-tremor measurement, seismic imaging, shake measurement, refraction or reflection survey and so on.


•  Multi-wave seismic 
•  Wave speed (sheared wave) survey
•  Transient multifold Rayleigh wave prospecting
•  Multi-wave high density seismic imaging
•  Shallow reflection survey
•  Shallow refraction survey
•  Foundation pile inspection
•  Civil engineering quality detection
•  Site constant shake survey
•  Shake-to-blasting survey



* WZG-24C/48C Catalogue

Contact us


Whatsapp:0086 15986731215


•  Inspecting building base, roadbed and civil engineering
-  Roadbed, roadbed cavern and lava survey
-  Quaternary overburden layer delamination
-  Foundation soil type sorting and hazardous geological body survey
-  Foundation soil medium physical property delamination survey
-  Foundation reinforcement and roadbed backfilling survey
-  Bedrock depth and hidden geological structure prospecting
•  Engineering inspection
-  Tunnel line survey and wall rock classification
-  Concrete lining quality detection
-  Tunnel bottom detection and pilot detection
-  Tremor monitoring
•  Environmental and geologic hazards detection and evaluation
-  Landslide, karst, debris flow, mined-out area, active fault detection, etc.
•  Large-scale and medium-scale water reservoir monitoring
-  Dykes and dam incipient fault detection
-  Reservoir silt survey and silt discharging quality inspection
-  On backfilling stone detection of large-scale or medium-scale dam
•  Bridge engineering inspection
-  Bridge pier foundation inspection
-  Bridge pier concrete inspection
-  Bridge tremor inspection
Field survey

Main Features:

•  All in one unit with a high stability: The intergrated tablet PC with a high configuration. The reasonable structure design features with shakeproof, dustproof and waterproof.
•  The  internal larger lithium battery with a long  endurance.
•  Fast sampling: 24-bit A/D, minimum Sample interval is 50μs for 24 channels.
•  Window 8 system  enable the easy and fast operation.
•  To transfer data by USB port.
•  Powerful software: the new version software is visiable on long section  and colorful graph with a high resolution.
•  Perfectly displaying original signals: amplitude and phase are of high consistency, low distortion, with advanced high-cut wave filter which is better than that for 72dB; original signals are presented once again.
•  Background noises are always being monitored; therefore, trigger signals can be received at any time to trigger sampling.
•  Flexible configuration, easily extendable: customer can choose WINDOWS according to their own requirment.

Technical Specifications:
Channel number 24 /48
Sample stations 1024, 2048, 4096, 8192, 16384
Sample frequency a, Generally, 10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 1ms, 2ms, 5ms, 10ms, 20ms
b, For micro-tremor survey, 1ms ~ 200ms optional
A/D converter 24 bit
Signal stack and amplification 32 bit
Dynamic range 144dB
Frequency bandwidth 0.1Hz ~ 4000Hz
Noises 1μV(full-frequency state)
Amplitude consistency ±0.2%
Phase consistency ±0.01ms
Distortion ±0.05%
Time lapse 0~9999ms
Input resistance 20k
Crosstalk supprecssion ≥90dB
Low-cut filter steepness Software filter
High-cut filter steepness 72dB/ frequency doubling
50Hz trap filter 40dB
Tablet PC
• CPU: not less than Intel Core i3
• Memory: not less than 4G
• Solid State Drive: no less than 64GB
• Display: 12-inch bright LCD screen , resolution 2160 x 1440
• Input Device: multitouch
• Interface: three USB ports
• Operating System: Windows 8.1
• The battery of  Tablet PC support 7 hours continously work
Internal battery Lithium battery for 18 hours continously work
Date format SEG-2
Working temperature 0℃~50℃, 90%RH
Storage temperature -20℃ ~ +60℃
Weight 12.3kg (WZG-24C), 12.8kg (WZG-48C)
Dimension                                                   47cm * 35.7cm * 17.6cm

Optional Accessories:

PZF-36 24 channels switcher PZF-60 48 channels switcher


In order to ensure the safety of customers, our sales department only keeps the following email addresses:

- Sales@langeoinstrument.com
- Emily.chou@langeoinstrument.com
Other mailboxes are unofficial, please note.