• Data acquisition and Control Unit

Data acquisition and Control Unit


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These are the brains of the AUTOTRIAX 2 system, transmitting data and information between the software and all the active components such as the pressure controllers and Tritech triaxial load frame
The units are produced in four different versions to offer maximum flexibility. They can be stacked vertically, making them very space- efficient, and power connectors of multiple units can be daisy-chained together, allowing them all to be run from a single mains socket. Transducer calibrations are saved directly in the firmware of the units.

 

Features Specifications
  • It manages pressure/volume controller, load frames, cell and back pressures, solenoid valves and transducers
  • Transmits data and information between the software and all the active components
  • Calibration data of connected transducers are saved in the fi rmware of the units
  • Four different versions are available to offer maximum flexibility
  • Can be stacked vertically reducing the footprint on the work bench
  • The modular design concept allows easy extension of the system
  • Analogue/digital converter: 16-bit
  • Additional transducer gain ranges: +/- 20 mV and +/-10 V
  • Ethernet connection to PC: 100 Mb
  • Dimensions: WFD1A2 or WFD0A3: W 330 x D 240 x H 144 mm, WFD0A1 or WFD0A1/UNS W 330 x D 240 x H 70mm
  • Weight: 6 kg (29-WFD1A2/29-WFD0A3) 4 kg (29-WFD1A1/29-WFD0A1/UNS)
  • Power supply: 110-240 V 50/60 Hz, 1ph

 

 

29-WFD1A2
Master uni
29-WFD0A1
Pressure extension unit
29-WFD0A3
Triple pressure extension unit
29-WFD0A1/UNS
Pressure extension unit
for unsaturated test module only

A Master unit is always required, whatever combination of systems you want to put together. It has four active control channels for connecting the transducers that are needed for feedback to the software (for controlling vertical load or displacement and cell and back pressure) and eight passive channels for connecting a pore pressure transducer plus any other additional transducers, including local strain measuring devices. The Tritech compression frame, Hydromatic 2 pressure/ volume controllers and solenoid valves (for opening and closing the pressure lines) also connect to the unit. One Master unit is all that is needed for a single standard effective stress system.
Connections:

  • 2 Hydromatic pressure/volume controllers
  • 1 Tritech compression frame
  • 12 transducers
  • 2 solenoid valves

Used in addition to a Master unit, this extension unit provides control for one extra pressure system, with connections for a pressure transducer, solenoid valve and Hydromatic 2 pressure/volume controller, plus three spare passive transducer channels. It could be used, for example, in a system running permeability tests where three controlled pressures are required.
Connections:

  • 1 Hydromatic pressure/volume controller
  • 4 transducers
  • 1 solenoid valve
Used in addition to a Master unit, this extension unit provides control for three extra pressure systems, with connections for three pressure transducers, solenoid valves and Hydromatic 2 pressure/volume controllers, plus nine spare passive transducer channels.
Connections:
  • 3 Hydromatic pressure/volume controllers
  • 12 transducers
  • 3 solenoid valves

Used in addition to a Master unit, this extension unit provides control for one air pressure system, with connections for a pressure transducer, solenoid valve and Servoflow Air pressure controller. There is also a connection for an Automatic Volume Change device to measure the change in cell volume, plus two spare passive transducer channels.
Connections:

  • 1 Servoflow
  • 4 transducers
  • 1 solenoid valve
  • 1 Automatic Volume Change device

 

Ordering information
AUTOTRIAX 2 Data acquisition and control unit: Master unit AUTOTRIAX 2 Data acquisition
and control unit: Pressure extension unit
AUTOTRIAX 2 Data acquisition and control unit: Triple pressure extension unit AUTOTRIAX 2 Data acquisition and control unit: Air pressure extension unit for unsaturated testing
AccessorIes and other products
29-WF4645/COMP High specification desktop PC with LCD monitor. Operating system MS Windows preinstalled. 8 port LAN HUB converter for AUTOTRIAX 2 connection. 110 240V/50- 60Hz/1Ph
26-WF4645 LAN Hub with 8 ports for Wykeham Farrance devices.
 
AUTOTRIAX 2 Automatic Triaxial Tests System