Concret Rebound Hammer

Specification

Test range : 10 … 60 MPa or 100 … 600 kg/cm² (1450.38 … 8702.26 psi)
Impact energy : 2.207 J or N-m / 1.6278 ft-lb
Impact stroke : 75 ± 0.3 mm / 2.95 ± 0.012 in
Spring rigidity : 785 J or N-m / 578.99 ft-lb
Average rebound value (for calibration) : 80 ± 2
Radius of spherical tip : 25 ± 1 mm / 0.99 ± 0.04 in
Adhesion of the measurement tip : 0.65 … 0.15 N
Rebound value range : 0 to 100 (without dimensions)
Conversion tables : On back of instrument and in user manual; to convert rebound values indicated to kg/cm² and MPa (with introduction of impact angle)
Weight : Approx. 1 kg / 2.21 lbs