250 MRS - Senze-Instruments avec AFFRI

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250 MRS

Hardness Testers > Benchtop > Digital, Automatic Motorized

AFFRI 250 MRS

UNIVERSAL HARDNESS TESTER

Rockwell, Superficial Rockwell, Brinell, Vickers, Knoop, Shore

  • Innovative measurement technology with vertical measure system:

  • 250 MRS AFFRI® System Hardness tester achieves the highest level of measurement of depth accuracy and resolution available for a Hardness Test

  • 250 MRS hardness tester is equipped with a unique closed loop electronic force measuring system and accurate “in-line” depth measuring technology for fast, precise, and reliable test even in case of bending of 50 mm or on unstable or oiled surface

  • A single start button to perform surface contact and test piece clamping from any distance and motorized test cycle

  • Multifunctional key pad


Absolute Precision
- Unrivalled accuracy with no misalignment and/or anomalous shoves.
- Meets all laboratory requirements
- Full operation even in presence of vibrations, sudden changes in temperature or dusty environments.
- Unparalleled Accuracy, Repetibility and Reproduction in all test conditions which can be checked in operation conditions R. & R. within 4%.
- Survey of load and indenter penetration in axis, in order to obtain an absolute hardness measurement
- Graphical lighted display to obtain clear and accurate readings. Icons facilitate the operator in identifying software functions.
- Signal for test cycle end that facilitates the operator
- Automatic control and selection of preloads and loads through a closed-loop with load cell (AFFRI® patent)
- The operator can automatically select test load and measurement scales through only one button.
- Simultaneous conversion between differents scales (Rockwell, Brinell, Vickers and tensile N mm2).
- Perfect and effective measurements even at the first test
- Insensitive to deflections
- Automatic compensation of deflection up to 50 mm
- The long stroke head permits easy test on different height components without change every time the elevating screws position
- The head goes down automatically to contact and execute test cycle
- High precision and test speed
- Effective statistics software incorporated with connection to printer or computer in order to supply: diagrams, graphs, test lists, average, standard deviations.
- The instrument and its controls are ergonomically provided with security devices according to CE norms
- Software includes settings in three selection classes in order to simplify the insertion of the instrument in an automated working line
- Programmable test load, 0.1 second division
- Automatic correction on round surfaces and storing of results
- High resolution of measurement 0.1 (or 0.01 HR unit upon request)
- Reversibility from automatic to semiautomatic for single test
- Two years full warranty in order to assure high technological level it contains
- Wide range of accessories in order to hold pieces of every shape

Applicable Accessories

Standard

- Wooden case with accesories
- Dust cover
- Power cord
- User’s manual


On request

- Flat anvil 60 mm
- “V“ anvil 60 mm
- Flat and “V“ double anvil
- Hardness conversion table
- Printer
- Table to support hardness tester
Rockwell
- Rockwell C-N indenter
- Rockwell B-T indenter
- Rockwell test blocks C-B-N-T
Vickers
- Vickers 136° indenter
- Vickers test blocks
- Microscope 1216 for Vickers-Brinell measures
Brinell
- Ball penetrator 1 - 2.5 - 5 mm
- Brinell test block for ball 1 - 2.5 - 5 mm
EN-ISO 2039 for plastic
- Ball penetrator 5 mm for EN ISO 2039
- Large clamping base for EN ISO 2039
- Test block for EN ISO 2039 scale

Technical characteristics
Preload                     (10 Kgf) 98,07 N - (3 Kgf) 29,4 N
Vickers Knoop loads    (1 2 2,5 3 5 10 15 20 30 60 100 Kgf)
                                9,81 19,6 24,5 29,43 49,05 98,1 147,15 196 294,3 588,6 981 N
Rockwell loads           (10 60 100 150 Kgf) 98,10 588,60 981 1471,50 N
SuperRockwell loads   (3 15 30 45 Kgf) 29,43 147,15 294,30 441,45 N
Brinell loads               (5 6,25 10 15,6 25 30 31,2 62,5 125 187,5 Kgf - on request extra 250 Kgf)
                                49,05 61,3 98,1 153,23 245 294,43 306,5 613 1226 1839 N (on request 2452)
Optional test loads      49 132 358 961 N (for plastic, rubber as per EN-ISO 2039 std) (250 Kgf) 2452,5 N Brinell

Mode of operation only one single start input without brake to activate automatically: research and contact on test sample plus entire test cycle phase, autoclamping and insensible to deflactions during the test cycle

Feasible tests              Rockwell HRC A D B F G L M R ; Superficial Rockwell HRN + HRT ; Brinell HB 30, HB 10,
                                 HB 5, HB 2,5, R ; Kgmm2 ; EN-ISO 2039
Digital Reading            Rockwell - Brinell - Vickers
Reading resolution       0,1 HR - 0,1 HB - 0,1 HV ( 0.01 HR unit, at request)
Floating head from       0 to 50 mm without breach
Accuracy Conformation standards EN-ISO 6506 / 6507 / 6508 / ASTM-E18 - EN-ISO 2039
Certificability of direct and indirect method Yes
Total height capacity    215 mm
Total depth capacity     190 mm
Max load of test piece  1000 Kg
Data output                RS 232 C
Piece selection Hard - Soft - Ok
Power supply              220V 50^60Hz-200VA
Field of application      For all metals: iron, steel, tempered steel, bronze, aluminium and nitriding, cementation,
                                 hard facing, plastics
Net weight                 75 Kg
Packing weight           90 Kg
Packing measures       37x60x100 cm

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