Controls Group http://www.controls-group.com/images/logo_controls.gif MULTISPEED digital automatic universal tester for displacement controlled tests MULTISPEED digital automatic universal tester for displacement controlled tests
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Asphalt/bituminous mixture

MULTISPEED digital automatic universal tester for displacement controlled tests

suitable for CBR, Marshall, indirect tensile, unconfined compression and many other displacement controlled tests

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EN 12697-34 | ASTM D1883 | ASTM D1559 | ASTM D5581 | AASHTO T245 | EN 12697-12 | EN 12697-23 | ASTM D4123 | NF P98-251-1/4 | BS 598:107 | BS 1377:4 | NF P94-078 | AASHTO T193 | EN 13286-47 | ASTM D6927 | DIN 1996 | UNI CNR 10009 | CNR 30 | CNR 34
Main features
The firmware provide the digital speed control and a number of important test functions as follows:
  • Closed loop speed control
  • CBR and MARSHALL test speed can be selected by default.
  • Other testing speeds (Custom) between 0.2 and 51 mm/min, can be easily set.
  • Selection of maximum platen displacement. 
  • The automatic stop of the machine avoids machine and specimen overloading, thus assuring operator safety.
  • Rapid approach function, to reduce the testing time.
  • Rapid platen return to speed up the platen base return at the end of the test.
  • Speed calibration function by firmware. The test speed is originally factory calibrated using a polynomial interpolation. A test point is provided to verify  the speed with a standard tachometer.
  • Emergency stop button as required  by the CE prescriptions.
General description
General description
The new MULTISPEED compression tester is the ideal solution for Road testing laboratory. The 50 kN capacity and the fully variable test speed of 0.2 to 51 mm/min make it possible to perform not only the CBR and Marshall tests, but many other applications as for instance Indirect Tensile test,  Quick Triaxial tests,  Unconfined and Uniaxial soil testing and, in general, all test to be performed under  displacement control. The machine can be equipped with analogical or digital load/displacement measurement systems as well as with the specific accessories, to suit either the field or central laboratory requirement.
 
The MULTISPEED tester feature a rigid two column structure with upper cross beam which can be set at various height. The load jack, DC motor and controls are housed in a specially designed base cabinet. When fit  in the digital mode,  test data are acquired and processed by the Digimax Touch data acquisition an drelevant PC software. See accessories.
One of the main features of the new MULTISPEED is the control of test speed which is first easily set and then shown on the display. Furthermore, the test stroke can be set at the beginning of the test with automatic stop, avoiding to overload the machine and the specimen, thus assuring the operator safety. This important feature also permit to perform the speed calibration of the machine by micrometric manual adjustment by the operator. The display also show the travel direction of lower platen. The front panel is also fitted with an emergency button and two operating led: machine switched on and travel direction.
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Technical specifications

  • Max. capacity:  50 kN
  • Test speed range, infinitely variable: 0.2 to 51 mm/min
  • Power: DC motor 750 W
  • Horizontal clearance (distance between columns): 270 mm
  • Max. vertical daylight (without accessories): 730 mm
  • Platen travel: 100 mm
  • Overall dimensions (lxwxh): 392 x 495 x 1213
  • Net weight approx.: 65 kg 
  • Alphanumeric display 2x16 characters

Ordering info

34-V1072  
MULTISPEED, digital compression tester, 50 kN cap., testing speed steplessly adjustable from 0.2 to 51 mm min. 230 V, 50-60 Hz, 1 ph

34-V1074  
Same as above but 110 V, 60 Hz, 1 ph

Accessories

Accessories for performing tests in analogue mode
 
CBR Accessories to EN 13286-47 , ASTM D1883, AASHTO T193, BS 1377:4, NF P94-078,  UNI CNR 10009 standards
 
34-T0103/3 Adjustable penetration piston complete with dial holder and dial gauge 30 x 0.01 mm div.
82-T1009 Load ring 50 kN cap., fitted with dial gauge 0.001 mm div.
or, as alternative:
34-T0103/3C Adjustable penetration piston complete with dial holder and dial gauge 10 x 0.01 mm div.
82-T1009/C Load ring 50 kN cap., fitted with dial gauge 0.01 mm div.
 
Marshall accessories EN 12697-34*, ASTM D1559, ASTM D5581, ASTM 6927-06, AASHTO T245,  BS 598-107, NF P98-0251-2, DIN 1996, CNR 30
Note: The EN* Standard specifies that Marshall Testers must be used in digital mode with a recording unit.
82-T1009/F Load ring, 50 kN capacity, with stembrake
Or as alternative:
82-T1007/F Load ring, 30 kN capacity, with stembrake
34-T0104/10 Compression device.
76-B0034 Flow meter.
76-B0033 Stability mould.

 
Accessories for performing tests in digital mode.
 
CBR: EN 13286-47, ASTM D1883, AASHTO T193

34-V0107/CBR  Test set to perform the CBR test in the digital mode, including:
82-P0375 Load cell 50 kN capacity
82-P0375/C Adapter to fit load cell (two pieces)
82-P0322 Displacement transducer, 25 mm travel
34-T0104/81 Adjustable transducer holder
34-T0103/1 Adjustable CBR penetration piston
All above items can be ordered individually.

82-P60R02 DIGIMAX Touch Data acquisition system, featuring: Large size touchscreen display, Very easy to use menus with intuitive selections, self-explanatory icons, optimized test procedures, PC connection via LAN port allowing faster communication, better stability and longer cable lengths compared to an RS232 serial connection, 
Advanced calibration menus with linearization functions, firmware-driven procedures, secure file storage, unlimited data storage on USB pen drives

82-SW/CMU PC software for CBR, Marshall, Indirect tensile and universal tests. (Optional)


Marshall: EN 12697-34, ASTM D1559, ASTM D6927

34-V0107/MAR Test set to perform the Marshall test in the digital mode, including:
82-P0375 Load cell 50 kN capacity
82-P0375/C Adapter to fit load cell (two pieces)
82-P0322 Displacement transducer, 25 mm travel
34-T0104/81 Adjustable transducer holder
34-T0104/13 Compression device extension
34-T0104/10 Compression device
76-B0033 Stability mould
All above items can be ordered individually.

82-P60R02 DIGIMAX Touch Data acquisition system (as above)

82-SW/CMU PC software for CBR, Marshall, Indirect tensile and universal tests. (Optional)


CBR and Marshall (To avoid duplications when both test have to be performed)
 
34-V0107/CM Test set to perform the CBR and Marshall test in the digital mode, including:
82-P0375 Load cell,
82-P0375/C two adapters ,
34-T0104/81 Adjustable transducer holder ,
82-P0322Displacement transducer, 25 mm travel,
34-T0103/1 CBR penetration piston,
34-T0104/13 Compression device extension,
34-T0104/10 Compression device,
76-B0033 Stability mould.
 
82-P60R02 DIGIMAX Touch Data acquisition system (as above)

82-SW/CMU PC software for CBR, Marshall, Indirect tensile and universal tests. (Optional)

Important note: the EN standards concerning the Marshall test prescribe a machine in the digital configuration with recording unit. 


Accessories to perform Indirect tensile tests on bituminous mixtures to Standards
EN 12697-12 , EN 12697-23, ASTM D4123,  CNR 34
 
82-P0375 Load cell, 50kN capacity
82-P0375/C Adapter to fit load cell (two pieces)
82-P0322 Displacement transducer, 25mm travel
34-T0104/81 Adjustable transducer holder
34-T0104/13 Compression device extension
34-T0104/10 Compression device
76-B0078/B Tensile splitting device or, alternatively,76-B0078/C 
82-P60R02* DIGIMAX TS Data acquisition system. See specification above. 
82-SW/CMU PC software for CBR, Marshall, Indirect tensile and universal tests. (optional).

 
 
Accessories to perform Unconfined compression on soil specimens according to ASTM D2166, BS 1377:7 and AASHTO T208

82-P0370
 Load cell, 2.5 kN capacity
82-P0375/C Adapter to fit load cell (two pieces)
82-P0322 Displacement transducer, 25mm travel
34-T0108/5 Load cell extension
34-T0104/4 Platens for unconfined compression
82-P60R02* DIGIMAX TS Data acquisition system. See specifications above.
82-SW/CMU PC software for CBR, Marshall, Indirect  tensile and universal tests. 

 
For other test configurations see page universal tester accessories.

Additional Information

Other MULTISPEED applications
As specified, the MULTISPEED 34-V1072 can be profitably used for many applications where the displacement controlled speed is requested.
Refer to universal testers accessories for details.

Documents

Partner's Documents