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Name

Micro IRHD Hardness Tester

Model

H-12

     Description                                                      

The Wallace H-12 is a digital bench-mounted hardness tester that measures in IRHD the hardness of most rubber samples. In particular it has been designed to accurately test thin sections and small test pieces such as O-rings.The robust, ‘C’ frame design allows the operator easy access from front and sides to safely load and remove samples. The indenter mounting is frictionless and its position sensed by an LVDT, providing the instrument with outstanding sensitivity. Adjustable anti-vibration feet reduce the effect of external vibration.


     Standard                                                           


BS 903: Pt. A26, DIN 53519, ISO 48, ASTM D 1415

     Features                                                            

uThe robust, ‘C’ frame design allows the operator easy access from front and sides to safely load and remove samples. The indenter mounting is frictionless and its position sensed by an LVDT, providing the instrument with outstanding sensitivity. Adjustable anti-vibration feet reduce the effect of external vibration.
uBy simply pressing the start button, the instrument functions automatically, allowing accurate, repeatable results to be recorded in much less time than traditional models. As minimal training is required, new operators soon become confident with the H12, achieving consistent readings from the outset.
uA range of optional sample tables is available, designed to locate samples of varying shapes and special sample holding fixtures. It includes the O-ring adaptor (H19/ORA) that ensures the centre of the ring is directly beneath the centre line of the indenter.
uRubber Hardness Test Blocks：The test blocks are for use as a check to ensure instruments are functioning properly and read correctly. They are not intended as standards with specific hardness values. Test blocks should be returned to Wallace every 12 months for re-calibration.


     Key Technical Data                                           

Accuracy: <0.1

Indenter shape: sphere

Indenter diameter: 0.395mm

Load: quiescent load

Indenter load: 235mN

Preload: 8.3mN

Second load: 145mN

Load time: 5+30sec

Specimen thickness: min.1.5mm

Dimension (W×D×H): 214mm×255mm×300mm

Weight: 7.5kg