David Skinner & Partners




ABEM Terraloc has added a new seismograph to the family, which further increases the quality with improved stability and enhanced user experience. Terraloc Pro 2 seismograph is a great companion for almost all seismic applications whether it is as MASW or reflection survey, cross-borehole testing, or a marine refraction investigation. Typical applications for the Terraloc seismograph instruments are depth to bedrock, bedrock quality, soil stability studies, finding fractures and weak zones, and geological mapping. In all these applications the seismograph is triggered by ground vibrations created by an energy source. Time is then measured accurately until the ground vibrations have propagated through the ground and can be measured by geophones connected to the seismograph.

Features and advantages
  • A new quad-core computer module that runs a stable Linux operating system
  • A Wizard mode that facilitates the setup of measurements
  • Improved battery solution (Li-Ion) and power connectors

But above all – an upgraded up-to-date user interface that will improve the user experience of the seismograph. The Terraloc Pro 2 provides improved new functionality in conjunction with the best of the previous version − all wrapped together in one efficient solution.

A Standalone system

The ABEM Terraloc Pro 2 is a standalone seismograph and comes with a built-in computer, data storage, measurement channels and user interface. Measurements are conducted using a graphical interface with a look and feel that is familiar. The seismograph is enclosed in an aluminium casing that is rugged and robust, meeting IEC IP 66 classifications so that measurements can be made in all situations and environments. ABEM Terraloc Pro 2 seismograph is equipped with GPS, WiFi, Ethernet and USB.

  • Power 2 x 11.25V, 6.4Ah Internal Li-ion 10 – 28 VDC external power
  • Power Consumption 30/60W (idle/acquisition)
  • Operating Temperature -20ºC to +55ºC
  • Number of Channels 24 or 48
  • Up-hole Channels Yes, 2 additional independent
  • Sampling Rate 100Hz – 50kHz (20μ - 10ms)
  • Record Length Up to 480,000 samples / channel
  • Pre-trig Record 0 – 100% of record length
  • Delay Time Up to 2 minutes
  • Stacking 32 bits, up to 999 impacts
  • Unstack Remove last shot
  • Trigger Inputs Trigger coil, make/break, geophone & TTL
  • A/D Converter Resolution 24 Bits
  • Dynamic Range (theoretical/measured) 144dB / >120dB
  • Input Voltage Range 0.5Vpp, 5Vpp, 12.5Vpp
  • Input Gain 0dB, 12bB, 24dB, 36dB, 48dB
  • Input Impedance 3 kΩ, 20kΩ, 20MΩ
  • Frequency Range DC to 20Hz
  • Total Harmonic Distortion 0.0005%
  • Crosstalk -120dB
  • Noise Monitor Amplitude
  • Anti-alias Filters Set automatically based on sampling rate
Post Recording Features
  • Digital Filters Band-pass, low-pass, high-pass, band-reject and remove DC Offset
  • Operating System Linux Ubuntu
  • Internal RAM 4GB
  • Hard Disk Capacity 100GB or Greater
  • Display 8.4” Active TFT LCD, full colour, daylight visible, resolution of 800 x 600
  • I/O Port 3 x USB 2.0 ports
  • Network Interfaces 1 x Gigabit Ethernet
  • WLAN Interface IEEE 802.11 a/b/g, built in antenna

More detailed information


Seismic Radio Trigger

In situations that prevent standard triggering options the in-house built seismic radio trigger is the ideal solution. Designed to work with a trigger geophone at the source with the receiver at the instrument producing a simple closure. Compact and lightweight the transmitter and receiver can be slipped into a pocket between setups. Self-contained with re-chargeable, internal batteries for simple operation.