Controls 58-C0181/DGT, Инструкция по эксплуатации

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Manuale di Istruzioni
Instruction Manual
58-C0181/DGT Rev. 2 EN 04/02/2015
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2.2 Working prenciple
With the new digital rebound hammer 58-C0181/DGT the rebound number is calculated
with an innovative technology taking into account the anvil speed before and after the
impact.
This new working principle is equivalent to the traditional measurement of maximum
spring length after the impact, but it provides the following benefits:
•
higher accuracy and stability of the readings not affected by wear and tear
•
setting of the impact angle no longer required
•
a check of the device reliability can be performed during each impact, even without
the calibration anvil.
Pressing the rod of the hammer against the surface to be examined will charge the spring.
When the rod is completely retracted within the body of the hammer it will automatically
release a mass which strikes the rod in the inner end and, through this, the surface of the
concrete. The harder/more compact is the concrete, the higher the rebound of the mass.
The instrument complies with EN 12504-2 and ASTM C805.