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Digital Concrete Test Hammer

PC communication, increased memory capacity and Hammerlink software
ASTM C-805; EN-12 504-2; ENV 206; DIN 1048 part 2;
ASTM D 5873 (rock); D 5873; JGJIT 23-2001 part 202, JJG-1993.
Original Silver schmidt Type PC N – Switzerland 341 31 000
Features :

  • Measurement inherently independent of impact direction, meaning no directional corrections are necessary.
  • High measuring accuracy due to differential optical absolute velocity encoder.
  • Q value (measuring the true Rebound Coeficient)
  • The Q value (= rebound velocity divided by inbound velocity) represents the physical rebound coeficient.
  • The Q value need not be corrected for impact direction.
  • There is however a clear relationship beetwen the Q and the R value.
  • Conversion curves for a wide range of compressive concrete strengths, including low fc (<10 N/mm2, 1’450 psi) and high strength concrete (up to 170 N/mm2, 24’650 psi).
  • Simple operation with “one-button”, combined with advanced tilt and twist technology use interface.
  • Language independent graphical menu with symbols
  • Automatic conversion to the required measurement unit (N/mm2, kg/cm2, psi)
  • PC application : Hammerlink Software
  • Electrical data :
    – Display, 17 x 71 pixels; graphic / alphanumeric
    – Power consumption, ~13 mA measuring, ~4 mA setup and review, ~0.02 mA idle
    – Accumulator duty, > 1000 impacts (before recharging)
    – Charger connection, USB type B (5V, 100 mA)
  • Specification :
  • Impact energy : 2.207 Nm
  • Hammer mass : 115 g
  • Spring constant : 0.79 N/mm
  • Spring extension : 75 mm
  • Housing dimensions : 55 x 55 x 250 mm (340 mm to tip of plunger)
  • Plunger dimensions (visible part) : 105 x ø15 mm / radius of spherical tip 25 mm
  • Operating temperature : 0 to 50 °C
  • Storage temperature : -10 to 70 °C
  • Weight : 600 g
  • Standards supply consist of :
    – Hammerlink sofware, battery charge with USB-cable,
    – Data carrier, Carrying strip, Grinding stone, Chalk,
    – Documentation and Carrying case.

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