Concrete Test Hammer Model:W2254

Concrete Test Hammer Model:W2254 Cat.No:

Features Measurement inherently independent of impact direction, meaning no directional corrections are necessary High measuring accuracy due to differential optical absolute velocity encoder Conversion curves for a wide range of compressive concrete strengths, including low fc (<10 N/mm2, 1450 psi) and high strength concrete (up to 170 N/mm2, 24650 psi) Simple operation with "one-button", combined with advanced tilt and twist technology user interface Language independent graphical menu with symbols Automatic conversion to the required measurement unit (N/mm2, kg/cm2, psi) Applications Suitable for testing a wide variety of concrete, mortar and rock Ideally suited for on-site testing Handy for difficult to access or confined test areas (i.e. working overhead) Especially convenient for testing on tunnel linings as measurements are independent of impact direction Assessment on young, soft concrete with mushroom plunger (to indicate when to remove forms or for formwork) Product Variations Type BN - Standard impact energy (2.207 Nm) Type BL - Reduced impact energy (0.735 Nm) Type UN - Standard impact energy (2.207 Nm) with PC communication and increased memory capacity Type UL - Reduced impact energy (0.735 Nm) with PC communication and increased memory capacity Warranties warranty on electronic indicating units Optional extended warranty periods up to 3 years Standardization EN 12 504-2 ENV 206 BS 1881, part 202 DIN 1048, part 2 ASTM C 805 ASTM D 5873 (Rock) JGJ/T 23-2001 JJG 817-1993 Technical Data Mechanical data Type BN/UN Type BL/UL Impact energy 2.207 Nm 0.735 Nm Hammer mass 115 g 115 g Spring constant 0.79 N/mm 0.26 N/mm Spring extension 75 mm 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 Weight 600 g PC application Only for the versions UN and UL Hammerlink Software Electrical data Type BN/UN and Type BL/UL 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) Measuring ranges Type BN/UN and Type BL/UL Concrete compressive strength BL and UL: 8 N/mm2 to 110 N/mm2 (1'160 psi to 16'000 psi) BN and UN: 10 N/mm2 to 170 N/mm2 (1'450 psi to 24650 psi) BN and UN with mushroom plunger (optional): 5 - 30 N/mm2 (725 psi to 4'400 psi) Operating temperature 0 to 50 °C Storage temperature -10 to 70 °C