Electro-mechanical Loadframe for Consolidation testing (AOS)

  • Product Code: GDSAOS
Electro-mechanical Loadframe for Consolidation testing (AOS)
Electro-mechanical Loadframe for Consolidation testing (AOS)

The GDS Automatic Oedometer System (GDSAOS) is the modern replacement for a traditional hanging weight pedometer. 

The GDSAOS is a self-contained stepper motor driven unit that can be controlled either manually using its Smart Keypad or from a PC using the USB interface.

There is no requirement for compressed air or manually placed weights. 

When used with the GDSLAB control and data acquisition software, the GDSAOS can be used for a complete array of tests beyond those which a hanging weight oedometer can perform.

Standards:
AASHTO T-216 ASTM D-2166 ASTM D-2435 ASTM D-2435M ASTM D-3877 ASTM D4546-14 BS1377/5 CEN ISO/TS 17892-5 CEN ISO/TS 17892-7 EN ISO/TS 17892/5  JGS0411 JGS0412
Feature & Benefits  
Automatic transition between test increments for all soil types, with no need of user estimated parameters input during test set-up: Results from tests on over consolidated clay, produced a reduction in test duration of 42%.
Direct replacement for a hanging weight oedometer system: The GDSAOS is a stand-alone unit (with no requirement for compressed air). Having a small footprint significantly reduces the bench space required coupled with the additional advantage that loading weights are not required.
Automated logging of data (and optionally reporting): Automation saves time recording results and controlling the test.
Incremental loading stages: When using GDSLAB the GDSAOS can be preprogrammed to include numerous incremental loading stages which automatically move to the next stage via preprogrammed end of consolidation conditions, thus increasing sample throughput.
Accurate results throughout the load range: From 1N to 10kN the GDSAOS electro-mechanical pressure controlled systems provide accurate results, compared to pneumatic consolidation systems that are typically inaccurate at low loads.
Technical Specification  
Axial Force Accuracy 0.196FRO,
Dimensions W/D/H - 220mm, 260mm (including keypad), 656mm
Displacement Accuracy 0.2% (Can be improved to 0.1% with an external transducer connected to an RFM)
Displacement Range Nominal 40mm
Displacement Resolution 0.0001mm (0.1pm)
Load Range (kN) Max Load 10kN
Power 110 to 240 AC Volt Input, 60Watts, 50/60HZ
Sample Sizes Standard Cell Size: 50, 63.5, 70, 75 & 100mm Custom Cell Size: 25, 38, 71.4,101.6 & 112.8mm
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