Data acquisition unit, GEODATALOG 8

Main features
  • Up to 8 independent input channels.
  • Network configuration of up to 64 independent channels.
  • LAN / Ethernet connection to PC via dedicated software (included).
  • Compatible with load cells, pressure transducers, strain gauges, LDT/LVDT/potentiometric displacement transducers.
  • Effective resolution: 131,000  points.
  • Sampling rate up to 500 readings per second per channel.
  • Numerical and graphical display of readings via PC software.
  • Possibility to synchronize pressure and volume data coming from HYDROMATIC with data from the other transducers connected
  • The transducers can be grouped and combined  by the user for matching different applications.
  • It is possible to perform various tests (e.g. shear, consolidation, triaxial, … ) in parallel, each one having independent clock, channels and logging mode
General description
GEODATALOG 8  is a multipurpose data logger which works directly connected to a PC. Data are automatically transferred to the PC in real time for live monitoring of the tests progress.
GEODATALOG 8 records and monitors in real time the measurements requested for soil mechanics testing, as: consolidation, shear, triaxial, permability and many others.
It is compatible with strain gauge load cells, pressure transducers, linear LDT transducers, LVDT conditioned transducers, potentiometric displacement transducers.
GEODATALOG 8 is conceived with a modular and flexible concept: up to 8 instruments can form a network and then create a modular system with up to 64 independent channels.
The data acquisition unit is supplied complete with general purpose  DATACOMM 2 PC software for fully comprehensive data management of both GEDOTALOG 8 and HYDROMATIC.
DATACOMM 2 software combines  the active channels into customizable groups by the operator. Data acquisition for each group is an independent task which can be started/stopped automatically with specific acquisition and logging mode.
Software allows remote calibration of the connected sensors up to 10 points with polynomial fitting curve up to eight degree. 
ASCII  format data export is available for combination with our geotechnical Geo-Analysis-Templates suitable for post-processing and printout of test certificates according to the most important international Standards.

Technical specifications

  • Requires connected PC
  • Number of channels: 8
  • Network mode: Up to 8 units
  • Sampling rate: Up to 500  readings/second per channels
  • Real resolution:131,000 points
  • Communication port: LAN / Ethernet
  • Excitation (VEXC): from 1 V to 10 V for each couple of channels (up to 4)
  • Datalogger input: 0-10 V; 0-20 mA
  • Software:   DATACOMM 2 (included)
  • Dimensions  approx lxdxh [mm]:290x195x61
  • Weight approx [kg]: 1.6 kg
  • Power supply: 110-220V,50-60 Hz, 1ph

Ordering info

GEODATALOG 8,  8 channels multipurpose data logger with dedicated software DATACOMM 2:
- 8 independent analogue input channels 
- Up to 8 instruments can work in a network creating a modular system with up to 64 independent channels.
- programmable VEXC via software from 1 to 10 V for each couple of channels (up to 4).
- Compatible with load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric type displacement transducers and any type of conditioned transducer having output signal 0-10 VDC or 0 20 mA. 
- Effective resolution: 131'000 divisions. 
- Numerical and graphical display of readings. 
- LAN / Ethernet connection to PC. 
- Supplied with general porpose PC software allowing remote calibration of the channels, and fully comprehensive data managment.
- Data exporting with ASCII  format.
-  PC and cables not included.  
- 110-230V / 50-60Hz / 1 Ph.


Cables (mandatory)

Kit of four cables for connect  load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric type  displacement transducers to DATALOG 8 and GEODATALOG 8 

One cable for connect  load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric type  displacement transducers to DATALOG 8 and GEODATALOG 8 

Lan Hub
LAN hub with 8 ports for Wykeham Ferrance devices

Extension Cable
Transducer extension cable, 6 m 
Transducer extension cable, 12 m 

Data processing: Geo Analysis Templates 
Templates for different tests and Standards have been developed specifically for processing test data recorded by the DATACOMM 2 software.  The templates are MS Excel® based programs with easy-to-use functions for importing data files, calculating results,  producing test reports that conforms to the relevant international Standards

Test Standard Ordering information
Consolidation Incremental loading BS 1377:5 30-WF6016/T1
ASTM D2435 30-WF6016/T8
Swelling  ASTM D4546 30-WF6016/T8A
CRS ASTM D4186 30-WF6016/T6
Hydraulic consolidation BS 1377:6 30-WF6016/T12
SWCC -Hydraulic consolidation - 30-WF6016/T13
Shear Direct/residual BS 1377:7 30-WF6016/T2
ASTM D3080 30-WF6016/T9
Ring BS 1377:7 30-WF6016/T3
ASTM D6467 30-WF6016/T16
Triaxial Effective stress BS 1377:8 30-WF6016/T4
ASTM D4767 / D7181 30-WF6016/T11
Total stress BS 1377:7 30-WF6016/T5
ASTM D2850 30-WF6016/T10
Other tests Permeability BS 1377:6 30-WF6016/T14
CBR BS 1377:4 30-WF6016/T7
ASTM D1883 30-WF6016/T17
Unconfined ASTM D2166 30-WF6016/T15