DDS-5F Automatic Shear Test System
Model: DDS-5F / DDS-5FM Product Name : Automatic Shear Test System
ELECTRONIC UNIT
The electronic parts of the system is based on our “ Automax ” unit, this is a microprocessor system that reads and processes the force, axial pressure and displacement readings, manages the motor, the pressure valve, the safety systems and the test steps through closed loop systems. It features a front panel in scratchproof poly carbon with a ten keyboard and a large monochromatic graphic display.
ELECTRONIC TRANSDUCERS SUPPLIED WITH THE SYSTEM
The system is supplied complete with:
· +/-5KN capacity load cell, bi-directional type (compression and tension ), nominal sensitivity 3mv/v, accuracy +/-0.15%F.S.
· 5KN capacity load cell, bi-directional type (compression and tension ), nominal sensitivity 3mv/v, accuracy +/-0.15%F.S.
· 12.7mm displacement transducer, accuracy 0.003mm, resolution 0.001mm.
· 25.4mm displacement transducer, same specification as above.
SHEAR BOX ACCESSORIES
All shear box assemblies are constructed of brass and are designed to contain water that surrounds the specimen. They consist of a square box with a rigid walled round or square hole complete with adapter loading pad, retaining plate, 2 porous stones.
DATA ACQUISITION SYSTEMS
The main interface is composed by 240*128 LCD. The test parameters can be shown and read on the LCD .
Cycle: means times of cyclic shear.
Shear diaplac.(mm):shearing movement.
Rate (mm/min) : shear rate.
Horiz. diaplac.(mm):Horizontal displacement.
SOFTWARE
Acquisition Module.
Standard Consolidation Module.
Standard Shear Module.
Quick Shear Module.
Repeated Shear Module (Option).Post processing function(Option).










