Product Information and Details Digital Hammer Test Proceq SilverSchmidt
The SilverSchmidt ST/PC is the first integrated concrete test hammer featuring true rebound value and unmatched repeatability.
Two factors contribute to the improved performance of this concrete test hammer over its predecessors:
- Velocity based detection of the rebound quotient
 - The lightweight hybrid design of the impact plunger is made from aerospace alloy, matched to the elastic properties of the concrete and equipped with a hardness steel cap
 
Independent validation testing by BAM (Federal Institute for  Materials Research and Testing, Germany) has shown the SilverSchmidt  ST/PC to have less dispersion than the classical concrete test hammer  over the entire range.
The unique design and high quality construction of the concrete test  hammer SilverSchmidt ST/PC makes rebound hammer testing quicker and more  accurate than ever before.
Features
- The SilverSchmidt ST/PC concrete test hammer combines a high measurement accuracy with an unmatched repeatability.
 - The rebound value requires no angular correction
 - The concrete test hammer offers customer 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 100 N/mm2, 14’500 psi)
 - A large number of measurement points can be easily collected by the concrete test hammer and automatically evaluated according to statistical data
 - The concrete test hammer offers automatic conversion to the required measurement unit (MPa, N/mm2, kg/cm2, psi)
 
Technical Data
| Mechanical data | Type ST N / PC N  concrete test hammer  | 
            Type ST L / PC L  concrete test hammer  | 
        
| Impact energy | 2.207 Nm | 0.735 Nm | 
| Hammer mass | 135 g | 135 g | 
| Spring constant | 0.79 N/mm | 0.26 N/mm | 
| Spring extension | 75 mm (2.95”) | 75 mm (2.95”) | 
| Housing dimensions | 55 x 55 x 255 mm (2.16” x 2.16” x 9.84”) | |
| Weight | 570 g (1.3 lb) | |
| PC application | |
| Only for the concrete test hammer SilverSchmidt versions PC N and PC L: 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 | 
| Battery life | >5000 impacts (before recharging) | 
| Charger connection | USB type B (5V, 100 mA) | 
| Measuring ranges | |
| Concrete compressive strength | 10-100 N/mm2 (1450-14500 psi) | 
| Operating temperature | 0 to 50 °C (32 to 122 °F) | 
| Storage temperature | -10 to 70 °C (14 to 158 °F) |