ABEM Terraloc Pro 2
The rugged seismograph
The ABEM Terraloc Pro 2 is a tough and versatile seismograph for geotechnical and structural assessment, geological survey and environmental studies. Common applications include locating bedrock and determining its strength, predicting the stability of materials ahead of construction, pile and foundation testing, and traditional geological mapping and exploration work.

A RUGGED STANDALONE SYSTEM FOR SURVEY ANYWHERE
IP66 protection, no need for an external computer and set-up wizards take the stress out of survey.
A core principle for ABEM is to make dependable, easy to use instruments. A set-up wizard will help you get the right settings and surveys can be completed using only the instrument keypad: no PC, no peripherals, just the Terraloc, spread cables and geophones. This allows for efficient fieldwork with IP66 protection maintained throughout the survey.
DESIGNED WITH A FOCUS ON DATA QUALITY
Independent receiver circuits on every channel provide market leading data quality.
Outstanding dynamic range from high specification digitizers with selectable voltage ranges ensures the ABEM Terraloc Pro 2 is able to record everything from ‘a whisper to an explosion’. Isolated receiver circuits significantly reduce noise and on-board filtering and analysis tools provide efficient in-field quality assurance so there are no surprises upon returning to the office.
VERSATILE AND SCALEABLE
The ABEM Terraloc Pro 2 offers the flexibility to undertake reflection, refraction, surface wave and borehole surveys with a scaleable hardware design to perfectly meet your needs.
Available in 12, 24 or 48 channel versions, these instruments can be upgraded to grow with your changing requirements. If you have two or more instruments, they can operate independently or be interconnected to further increase channel numbers when big projects come up. The system can operate with any type of seismic accessory to work in the widest range of applications.
ANOTHER TRUSTED SEISMIC SYSTEM FROM ABEM
The Terraloc Pro 2 is the latest in a long line of seismic instruments from ABEM with a design that simplifies the process of collecting good quality data.
How you choose to collect that high quality data is up to you – the system can: use single and multi-component geophones, borehole accessories and hydrophones; operate with a range of sources from a simple hammer, to a vibration rig to explosives; record data appropriate for reflection, refraction or surface wave studies. And this broad capability is delivered in a rugged, go-anywhere one-box solution.

1. Available in 12, 24 and 48 channels (upgradeable)
2. Two additional reference channels
3. Interlink multiple units
4. Analogue or digital triggering
5. Hot swap batteries
6. 6mm shatterproof full-colour screen
7. IP66 housing with built-in GPS
8. No external PC or peripherals required
Features:
- Available in 12, 24 and 48 channels (upgradeable)
- Two additional reference channels
- Interlink multiple units
- Analogue or digital triggering
- Hot swap batteries
- 6mm shatterproof full-colour screen
- IP66 housing with built-in GPS
- No external PC or peripherals required
Application
Ground investigation
A wide range of geotechnical information can be gathered using seismic methods: depth to bedrock, recording the strength and stability of materials, void location, and earthquake resilience are among the most common applications. Additionally, seismic velocities can be converted into common engineering parameters to provide a quantifiable result.
Geological exploration
Seismic survey has been used to map geological formations for many decades, most commonly by collecting refraction and reflection data. Tasks such as finding the contact between two different geological units, sequencing of layers, mapping structures and faults, and mineral exploration are well documented uses for seismic methods.
Borehole
Receivers and/or sources can be used within boreholes for uphole, downhole, crosshole and tomography surveys; this approach provides detail that is unachievable from surface measurement alone. Borehole accessories integrate directly with the Terraloc and can also be used to investigate specific subsurface structures such as concrete piles or foundations.
Specifications
General
Power
- Hot-swappable 2x 11.25 V, 6.4 Ah internal Li-lon power pack
- 10-28 VDC external power
Power consumption
- 30/60 W (idle/acquisition)
Ambient temp
- -20 °C to +55 °C (operating)
- -30 °C to +70 °C (storage)
Casing
- Rugged aluminum alloy, meets IEC IP66
Weight
- 12 channels: 9.5 kg
- 24 channels: 10 kg
- 48 channels: 11 kg
Dimensions
- 39x21x32 cm (WxLxH)
Connectors
- 12 channels: 1x NK-27
- 24 channels: 2x NK-27
- 48 channels: 2x KPT 55
Receiver
Number of channels
- 12, 24 and 48 (Upgradeable)
Additional channels
- Easily obtained by linking two or more units together
Reference channels
- Yes, 2 additional independent
Sampling rate
- 100 Hz – 50 kHz (20 μs – 10 ms) (user selectable)
Record length
- Up to 480 000 samples /ch. equivalent to: 5,1 ms – 80 min (user selectable)
Pre-trig record
- 0-100 % of record length (user selectable)
Delay time
- Up to 2 minutes (user selectable)
Stacking
- 32 bits, up to 999 impacts (user selectable)
Unstack
- Remove last shot from stack (user selectable)
Trigger inputs
- Trigger coil, make/break, geophone and TTL
A/D converter resolution
- 24 bits
Dynamic range
- (theoretical/measured) 144 dB / >120 dB
Input voltage range
- 0.5 Vpp, 5 Vpp, 12.5 Vpp (selectable)
Input gain
- 0 dB, 12 dB, 24 dB, 36 dB, 48 dB (selectable)
Input impedance
- 3 kOhm, 20 kOhm, 20 MOhm (selectable)
Frequency range
- DC to 20 kHz
Total harmonic distortion
- 0.0005 %
Crosstalk
- -120 dB
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 DC offset removal
Spectrum analysis
- Any single trace, FFT analysis
Velocity analysis
- On-screen analysis of refractor velocity
First arrivals picking
- Automatic or manual Times can be saved with record
Pre-stack correlation
- Yes, cross-correlation with reference or any other channel
Integrated Field PC
Processor
- Low power Intel Atom with 4 cores of 1.9 GHz
Operating system
- Linux Ubuntu
Internal RAM
- 4 GB
Hard disk capacity
- 100 GB or greater
Display
- 8,4“ Active TFT LCD, full colour, daylight visible, resolution of 800×600
I/O port
- 3xUSB 2.0 ports
Network interfaces
- 1x Gigabit Ethernet
- IEEE 802.11 a/b/g, built-in WLAN antenna
- Optional mobile modem
GPS
- Yes, built-in
For inquiries contact us
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