This digital concrete test hammer, microprocessor operated, entirely designed and manufactured by Matest with advanced technology, performs basic concrete testing with continuous automatic recording of all parameters in accordance with EN 12504-2 Specifications, register and process data and then transfer them to a PC The unit consists of the standard mechanical model C380, but equipped with an electronic transducer that measures the rebound values and supplies automatically the results on a graphic display.

During test performing:
- Shows index value
- Shows average index value
- Allows to select measuring system in MpA or Psi
- Shows numbers of performed rebounds
- Shows date and time
- Identifies tested element
- Identifies automatically and shows rebound angle
- Shows battery life

Main features: - Possibility to store, display on graphic LCD 64x124 and download data to PC over 20000 tests
- Automatic statistical processing and readings
- Automatic conversion of rebound index to equivalent compression strength in psi, N/mm2, kg/cm2
- High accuracy and resolution

Technical specifications: - Impact energy: 2,207 Joule (Nm)
- Measuring range: 10 – 120 N/mm2
- Interface: RS232
- Power source: 6 rechargeable batteries AA NiMh 2000mA
- Battery life: 60 hours with automatic shut down
- Operating temperature: -10°C +60°C
Supplied complete with data transfer software, data transfer cable RS232, battery charger, abrasive stone, carrying case

Dimensions with case: 330x180x120 mm
Weight: 3 kg

The digital Matest test hammer is suitable to be connected to the Ultrasonic Tester “high performance” mod. C372N for “combined ultrasonic and rebound tests with automatic data acquisition, processing and store of the results”

Spring impact energy 0,225 mkg.(2,207 Joule) Suitable for finished concrete structures and buildings having strength resistances from 10 to 70 N/sq.mm. This concrete test hammer,entirely produced by Matest, has aluminium frame, and thanks to its very accurate manufacture processing and selected components ensures high precision test results in the time.
The top quality test hammer available on the market.
Supplied complete with calibration curve chart in N/mm 2 (Mpa) values, abrasive stone, carrying case.

Dimensions: 330X100X100 mm
Weight: 2 Kg

Concrete rebound Schmidt hammer (sclerometer) – is a device for concrete and other building materials strength testing. The most common in the world instrument for measuring the strength of concrete is the Schmidt Hammer. The device is called by the name of the engineer Ernst Schmidt, who invented the construction of the sclerometer.

The method is based on the impacting the striker on the concrete surface with predetermined (normed) impacting energy and subsequent measuring of the height of the striker rebounding. The height of the striker rebounding will be proportional to the strength of concrete. The strength of concrete is determined with the calibration charts that are supplied with the instrument.

Concrete Rebound Schmidt Hammer NOVOTEST SH is very ease in operation, has good reliability of design and high measurement accuracy, so that this method is the most common method of measuring the strength of concrete in the world. The strength testing with the Schmidt hammer is correspond with ASTM C 805; ASTM D 5873 (for rock); DIN 1048, p. 2; ENV 206; EN 12 504-2; ISO / DIS 8045.

There are several versions of the device, which are different in impacting energy.

• The most “powerful” Schmidt hammer is designed to measure the strength of concrete with a thickness of 70-100mm and more, also for the strength testing of massive rocks with impact energy – 2,207J (Nm). This is the base and the most common model of Schmidt hammer, about 90% of the Schmidt hammers in the world have the same impact energy.
• Average “powerful” Schmidt hammer has the 735J (735 Nm) impacting energy. The impact energy is reduced threefold in compared with the base model. The main application of this instrument is measuring the strength of bricks and concrete products with a wall thickness less than 100 mm and small sizes of sample, also it used for testing the less strength stones and rocks.
• The least “powerful” Schmidt hammer has 196J (196Nm) impact energy. The main purpose is the strength testing the mortar of brick masonry.

Depending on requerments tasks user always need to select the correct model of Schmidt hammer. All models, independently of impact energy, are devices for non-destructive testing, so that they are not destroying the object of testing.

To verify the accuracy of Schmidt hammer, a special calibrated anvil is used . Correctly functioning instrument have to display certain value testing the standard anvil.

چكش اشميت ديجيتال بتن

با قابليت نشان دادن مقدار شاخص، امكان انتخاب سيستم اندازه گيري(Mpa,psi) ، امكان ذخيره و نمايش بر روي LCD 64×124 و دانلود اطلاعات بيش از 15000 آزمايشدر کامپیوتر ، قرائت و پردازش آماري اتوماتيك ،تبديل اتوماتيك عدد بازتاب به مقاومت فشاری ، انرژی ضربه اي J(Nm)2.207 ، محدوده اندازه گيريN/mm²10-120 ، پورت USB و کابل ، داراي نرم افزارانتقال اطلاعات ، سنگ ساينده ، شارژر و کیف قابل حمل ،

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جهت انجام آزمايشات غير مخرب در سازه هاي بتني

با انرژی ضربه اي Nm) يا (2.207J0.225mkg ، مناسب براي سازه هاي بتني با مقاومت N/m²10 – 70 ،داراي فريم آلومينيومي ، چارت منحني كاليبراسيون به N/mm² (Mpa) ، سنگ ساينده و جعبه حمل

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