Concrete Rebound Test Hammer with 200 Groups Storage USB 2.0

"Technical Features 1)Integrated wireless structure of the test hammer host and the displayer part. Easy to carry and make work efficient. 2)OLCD displayer?English interface and friendly operation. 3)Using sensitive operation touch keys. The keys are not easy to aging. 4)Automatic recording function improves the efficiency of measurement. 5)Adopting non-contact reflection grating sensor, high precision, long service life, and the traditional pointer scale is kept. 6)The instrument is powered by a built-in rechargeable lithium battery, which can operate continuously for more than 10 hours 7)Large storage capacity, more than 200 standard components, a standard component including almost 50 test areas, one test areas including 16 test pointes, completely meet the request of long time in site test. 8)Testing parameters can be typed in test site. 9)Adopting USB interface, as U flash disk, no need special driver. Technical Specification 1) Data processing standard: Submit to (JGJ/T23-2011). 2) Standard impact energy: 2.207J 3) Tension spring stiffness: 785 N/m 4) Stroke of impact hammer: 75 mm 5) Test value when calibrated on test anvil (qualified anvil like type JW225): 80 ± 2 6) Bounds on error: ?± 0.5 (the differences between displayer and rider) 7) Display screen: 128 x 64 resolution, 3 levels of backlighting adjustable. 8) Data storage capacity: 200 standard components (50 testing areas per component) 9) Power consumption: The biggest backlight?200mA 10) Sleeping current: 0.8mA 11) Communication port with PC: USB2.0 Rated voltage (appliances or chargers): AC110-240/50HZ; "

• -Product Description: It is in accordance with technical regulation of JGJ / T23-2001, used for testing of concrete compressive strength within the scope of 10-60Mpa, with the system standard energy of 2.207J, and value indicating system of pointer direct reading.
• Product Characteristics: Hammer shell with special treatment, high hardness, long-term use of non-draw traces in raw materials processing technology, precision design other aspects of life are greatly improved.
• Friction of pointer: 0.65±0.15;Length of pointer: 20.0±0.2(mm);Rigidity of flip tensioned spring: 785.0±40.0(N/m)
• Fixed value of steel anvil: 80±2 (our products are controlled between 80-81)
• Sphere semidiameter at the end of the flip rod: 25±1.0