The Runjie rebound tester series products comply with the national standard "Rebound Tester"（GB/T9138-2015）Manufacturing, fully compliant with the metrological verification regulations' Rebound Tester '（JJG817-2011）.

【Dynamic grid sampling technology】The new non-contact dynamic grid sampling technology developed by Runjie has high reliability, stability, and durability.

【Pioneering aluminum-plastic shell technology】Adopting the new aluminum-plastic shell technology developed by Runjie (which has been applied for national patents), combining the advantages of plastic shells and aluminum alloy shells, it is lightweight, beautiful, durable, and easy to maintain.

【New tailgate locking structure】Adopting Runjie's brand new rebound tester tail cover locking structure design (already applied for national patent), locking/Removing the tail cover only requires a simple twist, completely overcoming the drawbacks of thread slippage and locking that often occur with traditional rebound gauges.

【Strength can be obtained by bouncing】Runjie Instrument's Original Creation“Concrete strength can be obtained immediately by elasticity”Function: With each bounce, the concrete strength conversion value corresponding to the rebound value of the bounce can be displayed, which is particularly suitable for applications that do not require complete component testing.

【 Concise interface and easy operation 】 Adopting advanced technologyOLEDLCD display screen, Chinese graphic human-computer interaction interface, displaying detection data and instrument status at a glance; coordinate4One operation button, can be mastered without training. Retain the manual direct reading function, and the digital sampling value can be compared with the pointer reading at any time.

【 High Quality and Longevity 】 The movement selects high-quality mechanical components, effectively extending the maintenance cycle and lifespan of the mechanical components

[Built in local regulations] In addition to the current industry standard "Technical Regulations for Testing Concrete Compressive Strength by Rebound Method"JGJ/T23-2011In addition, the instrument also has built-in local strength measurement regulations and curves from multiple provinces and cities. Runjie instruments will gradually increase and update the strength measurement procedures at any time.

【 Use regular5Number battery, ultra-low power consumption: The electronic part adopts a low-power design and can be used directly2Regular Festival5Number battery, capable of continuous operation and bounce5More than 10000 times, sufficient to meet the needs of on-site measurement work, eliminating the trouble of frequent charging of rechargeable batteries. In addition, when the instrument is in idle state, it will enter both backlight off state and sleep state to further save power and extend battery life.

[Data Security] When the battery level is low, the instrument will automatically remind you to ensure that you will not lose component data during testing due to low battery; When an unexpected situation occurs, such as the instrument suddenly losing power and shutting down during the measurement process, or the battery running out but the current component has not been fully ejected, the instrument will automatically continue the previous measurement progress on the next startup to ensure that the measurement data is not lost.

【 High speed 】USBInterface: The instrument adoptsUSB-HIDThe transmission method eliminates the hassle of installing drivers. The instrument also supportsUSB2.0Full speed mode, capable of12MbpsExport stored data at high speed.

【 Large storage capacity data preservation 】 The instrument can store up to999The detection data of each component is sufficient to meet the needs of actual detection work.

The function of automatically removing abnormal data can set the range of effective sampling values for rebound detection according to the actual situation, and can automatically remove abnormal sampling data that is below or exceeds the effective value range due to impact on air holes or stones during detection.

Real time clock: High precision real-time clock can automatically record the detection time of each component, and the calendar automatically adjusts for leap years.

[Supporting Data Processing Software] Supporting InstrumentsPCThe machine specific rebound data processing software has complete functions such as rebound data processing, detection report generation, printing, etc., meeting the requirements of professional testing institutions.

· Technical standard: Implement the "Rebound Tester"（GB/T9138-2015）

· Metrological Verification Regulations: Implement the Rebound Tester（JJG817- 2011）

· Nominal kinetic energy:2. 207J

· Elastic spring stiffness:（785±30）N/m

· Hammer stroke:（75.0±0.3）mm

· Steel anvil calibration rebound value:80±2

· Sampling indication consistency (difference between digital sampling value and pointer reading): not exceeding ±1

· Power Supply and Consumption: Usage2joint1.5Vordinary 5Number battery, capable of continuous bounce5Over 10000 times

· Storage capacity:8Megabytes, capable of storing no less than999A standard component

· Computer online communication:USB2.0Full speed mode, communication rate is12Mbps；USBworkstationsHIDMode, can be installed and used without a drive

· Working temperature:-10℃—+40℃

· Environmental humidity: ≤95%(Relative humidity)

· Weight:1100g(including battery)