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OS8200 concrete test hammer is a rebound hammer which has long been the global benchmark for non-destructive compressive strength testing of concrete.
Rebound Hammer test on concrete is a Non-destructive testing method of concrete which provides a convenient and rapid indication of the compressive strength of the concrete.
The OS8200 Proceq Rebound hammer is integrated through a Schmidt mobile app that lets you annotate measurements with voice, photos and comments & generate reports instantly. One can easily share the generated report in a second. The Digital hammer can wirelessly connect to a bluetooth printer for direct print-out of test results.
In OS 8200, the output Q value brings greater accuracy at higher strengths as it is proven that Q-value delivers more accurate correlations for custom material curves.
The Silver Schmidt hammer acquires the Q-value by measuring the velocity (V) of impact and of rebound immediately before and after the impact, Q-value need not be corrected for impact direction. Hence, no mechanical loss due to friction, of gauge , gravity etc occurs & it gives high accuracy output.
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Software / Workspace App |
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Workflow features |
Voice read-out of each impact (only on iOS®) |
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Display |
Any compatible Apple® iOS device |
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Measurements |
Test region reporting |
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Verification features |
Options: EN12504-2, Manufacturer's recommendation, JGJ-T23 |
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Cloud features |
Cloud synchronization |
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Report Generation |
Single, multiple series, test region (uniformity, EN13791) |
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Languages |
English, German, Japanese, Chinese, Korean, Spanish, Portuguese, Italian, French, Russian |
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Sensor |
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Instrument Firmware |
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Memory |
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Impact Energy |
2.207 Nm (N), 0.735 Nm (L) |
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Compressive Strength Range |
10 to >100 N/mm2 (1,450 to>14,500 psi) |
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Display |
Analog & backlit digital (100 x 100 pixels, graphic) |
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Connections |
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Measurements |
Impact angle independent |
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Battery |
Standard AAA, alkaline or rechargeable |
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Battery Lifetime |
> 20,000 impacts between charges |
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Operating Temperature |
0° to 50°C |
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Languages |
English, German, Japanese, Chinese, Korean, Spanish, Portuguese, Italian, French, Russian |
More than 20000 Impacts
Yes, Instant report generation possible in the instrument.
Yes, Hammer can be connected to Bluetooth printer for direct print-out of test results.
0° to 50°C
The Output Q- value is highly accurate & calculated by the ratio of inbound velocity & outbound velocity. It is virtually free of all mechanical errors.
10 to >100 N/mm2 (1,450 to>14,500 psi)
The Original Schmidt OS8200 is an advanced digital concrete test hammer designed for non-destructive testing (NDT) of concrete compressive strength, uniformity assessment, and quality control of concrete structures.
The OS8200 features optical velocity measurement technology, which directly measures rebound velocity rather than relying on mechanical rebound numbers, resulting in significantly higher accuracy and repeatability.
The OS8200 operates with 2.207 Nm impact energy (Type N), making it suitable for testing standard structural concrete in buildings, bridges, tunnels, and infrastructure projects.
Yes. The device automatically compensates for testing angles, ensuring accurate results on horizontal, vertical, overhead, and inclined surfaces without manual correction charts.
The OS8200 features a high-resolution touchscreen display that provides real-time measurements, statistics, strength estimations, and test management functions.
Yes. The instrument automatically converts rebound measurements into estimated compressive strength values in MPa, N/mm², psi, and other engineering units using built-in conversion curves.
The optical measurement technology eliminates mechanical friction errors, providing higher repeatability, lower measurement variance, and improved accuracy compared to traditional rebound hammers.
Yes. The device includes substantial onboard memory capable of storing thousands of measurements, test locations, and inspection projects.
Yes. The OS8200 supports wireless data transfer and integration with Proceq software, enabling detailed reporting, data analysis, cloud synchronization, and project documentation.
The instrument automatically calculates average, minimum, maximum, standard deviation, and strength distribution values, reducing manual calculations and reporting time.
The OS8200 complies with major international standards including EN 12504-2, ASTM C805, ISO 1920-7, and DIN 1048, making it suitable for global infrastructure and construction projects.
Yes. The high accuracy and digital data management capabilities make it ideal for bridges, tunnels, dams, metro projects, airports, and structural audits.
Optical measurement eliminates wear-related inaccuracies, improves long-term calibration stability, and provides more reliable concrete strength estimation than mechanical rebound systems.
Yes. It is widely used for condition assessment, rehabilitation planning, quality assurance, forensic investigations, and structural integrity evaluations.
Key advantages include optical velocity measurement technology, 2.207 Nm impact energy, automatic angle correction, touchscreen display, onboard memory, wireless connectivity, advanced statistical analysis, cloud reporting, and compliance with international concrete testing standards.
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