DIRECT SHEAR APPARATUS-MOTORIZED-TWELVE SPEED-ELECTRONIC DIGITAL

Electronic Direct Shear Testing Machine with Software Interface

Compliance with following International Standards:

ASTM D-3080

Salient Features:

1. Tactfully Designed
2. Aesthetic outer appearance
3. Powder coated exterior body
4. Hard Chrome Plated essential internal components
5. Shear box made from Complete Stainless Steel Material
6. Electrically operated to give twelve (12) different constant rate of strain at 1.25, 0.625, 0.125, 0.05, 0.01, 0.005, 0.002, 0.001, 0.0004 and 0.0002mm/min.
7. Supplied with loading yoke with direct and lever for applying load.
8. Normal stress capacity 8 Kg/Sq.cm.
9. Load is applied either directly or through a counter balanced detachable lever.
10. Provision is made for the load to be applied either through a steel ball recessed in the loading pad or direct through a boss on the pre-calibrated loading yoke.
11. Precise and accurate control through electronic system coupled with PC Software
12. Easy handling of readings and Graphs data
13. User friendly software guide
14. High sensitive LVDT and Microprocessor based digital read out unit
15. Facility for selection of measurement unit KN, KG

Construction Details:

1. In addition to other components like shear box assembly, Gripper assembly, porous stones, plain grid plates, perforated grid plates, loading pads, specimen cutter, set of weights, shear box housing, loading unit as per the conventional instrument, the Electronic Digital Direct Shear Machine is also fitted with following additional electronics components.

Following are the sensors and load cells provided as essential accessories with the electronic system:

1. Load cell 2 KN capacity (Tension/compression)  01 No.  - (As per capacity of the machine for measuring shearing force)
2. Displacement transducers ± 20mm           02 Nos. - (One for consolidation measurement and other for strain measurement)
3. Digital display for all parameters, operating on 220 Volts, 50 Hz, A.C. supply.   01 No.  
4. A three channel microprocessor based read-out unit, which can be connected to the two displacement transducers and the load cell for measuring consolidation, horizontal strain and shear load respectively in direct engineering unit.
5. Large on-board LCD Screen display
6. Direct entry via touch sensitive keyboard



Can be supplied with software as per below listed features at extra cost of Rs.30000.00 :

1. On-Line Data Acquisition Software
2. On-Line Data Transmission from Signal Conditioning Unit to Computer
3. Off-Line Data Analysis Software that does all the Calculations of Direct Shear Test
4. Has option for manual as well as automatic recording of data
5. Calculates Area, Volume, Bulk density, Dry density, Moisture content etc of the specimen
6. Easy to set up and conduct the test
7. Company logo and address on welcome screen
8. Password protected login screen
9. Software automatically detects the available Communication Ports (com-ports) to establish RS-232 connection
10. Facility to identify and display true/false com-port connection by green or red lamp indication within the software, Eliminating human error
11. User can enter new party name and address details to save all test specific information for later work.
12. Previously stored party name and address details can also be loaded by browsing directory of stored data.
13. An operator can feed in various input information about the test sample.
14. Test no
15. Test Material
16. Sample type
17. Test Speed
18. Date & Time
19. Density of test sample,
20. Sample weight
21. Moisture content,
22. Location of test sample,
23. Area correction option
24. No of tests
25. Large on-board LCD Screen display
26. Direct entry via touch sensitive keyboard
27. Facility to start or stop the complete instrument from software itself
28. User can control and vary the Motor Speed from the software itself
29. Pause and speed reset during the test
30. Self test diagnostic features
31. Facility to select the specimen type        : Square or circular
32. Facility to select the area correction option  : Yes or No
33. Facility to select the type of sample        : Drain or Undrain
34. Real time graph building during the specific test
35. Can store the data of previous test for future use

Plots following various graphs on software screen:

1. Horizontal Displacement vs Shear Force
2. Horizontal Displacement vs Vertical Displacement
3. Normal stress vs Shear Force
4. Display maximum value of the Dilation Angle along with C & ø Values
5. Four different graph windows on a single screen for a specific test sample (Four different readings for each test - so each reading can
6. be compared in real time and the last graph displays the overlap of three different readings for easy comparison)
7. Tabulated test data, graphs and all test-specific calculations are provided in real time, allowing the operator to monitor tests in
8. process
9. Automatic calculation of Friction Angle & Cohesion Intercept for Peak & residual values
10. Can export logged readings easily to Excel or PDF file
11. Compatible with most soil & rock direct shear test system

Facility to represent results in 2 different units:

1. MKS - METER, KILOGRAM, SECOND SYSTEM
2. FPS - FOOT, POUND, SECOND SYSTEM
3. An operator can change the background of the software.
4. An operator can also add or remove the specific parameters within the software as per the requirements.

Note : Use of Proper Voltage Stabilizer for fluctuation free power supply is essential to safeguard electronic parts.

Click Here for Working Video : https://www.youtube.com/watch?v=GXUmIBZjgO0