Impact Hammer Soil Tester 2.25kg – Digital Surface Hardness Tester for Cricket Pitches, Winter Sports & Equestrian Surfaces (Bluetooth)
A 2.25kg impact hammer soil tester for winter sports, cricket and equestrian surfaces. It helps you prepare quality, consistent playing surfaces and supports decisions on playing surface quality and safety, as well as turfgrass health. It is simple to use and gives straightforward, unbiased results.
Uses
- Cricket: the impact hammer test is a good predictor of both bounce and pace, making it a useful addition for an unbiased assessment of playing surface quality.
- Winter sports: where hard ground brings a risk of injury, the unbiased results help with safety decisions. The results have been shown to correlate closely with head injury severity indexes, and the test can also indicate the shock absorption and ball rebound qualities of the playing surface.
Use on different sports surfaces+
| Surface | Drop Height (mm) | Target Reading (G*) | Source |
|---|---|---|---|
| Cricket Pitch | 450 | 360 | ECB |
| Winter Sports | 450 | 70 - 90 | UEFA |
+ It can also be used on other types of surface, e.g. tennis courts, bowling greens and equestrian surfaces. *Deceleration due to gravity.
It can also be used to assess surface consistency through the year and across different areas of a surface. This needs multiple measurements across the pitch surface to calculate the degree of variation between them.
Suggested number of measurements to test for consistency
| Surface | Number of Locations |
|---|---|
| Cricket Pitch | 20+ |
| Winter Sports | 20 - 70 |
Operation
Operating principle: the tester consists of a 2.25kg compaction hammer working inside a vertical guide tube. When released, the hammer falls through the tube and strikes the surface under test, decelerating at a rate set by the stiffness of the material where it hits. The readout shows the hardness in units of gravities (G); harder surfaces give a higher G reading.
Design: a very rugged design suitable for prolonged use in damp, dirty and harsh site conditions. The readout unit is made from high strength alloy that has been proven to last for decades, and runs from 2 x AA batteries for typically 12 months. It is a compact, reliable instrument and comes with a transit and storage case.
Test procedure: testing is quick and straightforward. Stand the guide tube vertically on the surface to be tested; the digital readout sits on the guide tube during testing, so there is no need to hold it. Raise the hammer to the desired height and let it fall freely. Repeat three times and record the reading from the third drop as the measurement. Test data is stored in the instrument and can be downloaded wirelessly to a computer by Bluetooth.
Features
| Hammer Weight | 2.25 kg |
| Readout Display | Easy to view backlit vertical display clamped to Guide Tube. |
| Readout Range | Up to 500 Gravities (G) |
| Power Source | Two 'AA' cells. |
| Battery Life | Up to 12 months |
| Data Storage in Readout | Flash memory approx. 10,000 drop tests. Each stored field contains the time and date of the test and firmness. |
| Data Transfer Method | BluetoothTM Wireless data transfer to PC or laptop. |
| Data Files when Transferred | Comma Separated Variable (CSV) data for manipulation in 3rd party packages such as ExcelTM. |
| Transit & Storage Case | Wooden Case |
| Size & Weight (approx). | 71 x 13 x 13 cm. Instrument Weight: 4.6 kg Packed weight in case: 10 kg |
Looking for location tagging? See our 2.25kg impact soil tester with GPS.
