The Clegg Impact Tester is used to determine the hardness of all types of areas. Readings are in Gravities (gMax), CIT's and F355 Equivalent and has wireless Bluetooth display, GPS enabled tablet with data logging and mapping.

The unit comes in three main models:

The PNCLEGG-S-0.5 is a 0.5 kg Model used for testing Golf Greens, approaches and bunker sand. The hammer is lightweight so it will not damage putting surfaces during testing.

The PNCLEGG-S-2.25-A is a 2.25 kg Model used for testing natural grass & synthetic turf athletic fields and reads from 0 to 150 Gravities, 0 to 15 CIT's or 0 to 218 - F355 gMax equivalent readings. This model is the same model that is used to test all NFL National Football League Stadium Fields before games and also all NFL Practice Facilities. App also converts readings to F355 equivalent. The 150 gMax reading on this unit is sufficient for maximum impact readings in the ASTM F355 range after using the conversion formula. 200 g's on F355 Impact Tester = 135 g's on Clegg Impact Tester. The standard test protocol for sports field testing is to drop the hammer one consecutive time on the test area for the reading result.

The PNCLEGG-S-2.25 is a 2.25 kg Model 0 to 500 Gravities is used for Equine testing on Dirt, Turf, Synthetic and Grass racetracks, arenas, equestrian areas and all equine areas.

The principle behind the Clegg Impact Soil Tester or Clegg Decelerometer, is to obtain a measurement of the deceleration of a free falling mass (hammer) from a set height onto a surface to determine hardness. The impact of the hammer produces an electrical pulse, which is converted and displayed on the GPS enabled tablet in gravities "gMax", tens of gravities "CIT" or F355 equivalent units. Reference ASTM test methods ASTM 1936, ASTM F355, D5874 and F1702. The Clegg offers the convenience of rapidly testing compaction variations over large areas.

Available in following models

• 0.5 kg - Used for soft turf, sand areas and golf greens (0 to 500 Gravities)
• 2.25 kg - Used for surfaces consisting of baseball and softball infields, synthetic horse race tracks, arenas, grass and clay tennis courts, running tracks, cricket pitches and any areas over 150g's (New Bluetooth Model) with hard case

   

• natural or synthetic turf (football, baseball, soccer fields, playgrounds, pitches, horse tracks and all equine events like Horse Racing, Turf and Dirt Tracks, including synthetic dirt tracks) (0 to 500 Gravities) (+/- 1% or 5 G Accuracy)
• 2.25 kg-A - New Used for surfaces consisting of natural or synthetic turf (football, baseball, soccer fields, playgrounds, pitches, horse tracks, and golf greens) (0 to 150 Gravities) New (+/- 1% or 1.5 G Accuracy)
• 4.5 kg - Used for surfaces such as preconstructed soils, trench reinstatement, bell holes, and foundations
• 10 kg - Used for flexible pavement, aggregate road beds, trench reinstatement, bell holes, and foundations
• 20 kg - Used for surfaces such as flexible pavement, aggregate road beds, trench reinstatement, bell holes, and foundations

Simple and quick test procedure

1. The test procedure is very rapid and can easily be performed by site personnel with minimal training. Each test can be completed in less than 30 seconds and the results are immediate.
2. Select a level surface.
3. Set the guide tube into position. Secure by placing a foot on the tube's base flange and steady with the lower leg and knee.
4. The tablet app is placed in the test mode.
5. The Hammer is raised to the drop height quick release trigger and indicator mark.
6. The level is centered.
7. The Hammer is released allowing it to fall freely.
8. The Gravities value (Gmax), CIT value or F355 equivalent reading is displayed and is instantly saved, along with the GPS coordinates, into the Clegg app.
9. Move to the next test site and repeat the test procedure.

Clegg shown with Turf-Tec hard case (Included)

Specifications:

• Clegg 2.25 kg Hammer with hardened strike face
• Guide tube is metal and will provide years of reliable, accurate service
• Tablet comes ready to use with Clegg Control Application pre-installed and calibrated to your Clegg Hammer (available in the Google Play Store)
• Weight without case 10.5 lbs

Also see our infill depth gauges for accurate and consistent depths of infill materials
Turf-Tec Professional Model Infill Depth Gauge
Turf-Tec Economy Model Infill Depth Gauge for synthetic turf

Unit Comes with the following:

• Impact Hammer
• Guide Tube with Foot
• Bubble Level
• Samsung Galaxy Tablet "A" with Clegg Control Application
• GPS Integrated Tablet
• Bluetooth Sending Unit
• BNC Coax Cable
• 12x12 inch Foam Calibration Pad (0-150g 2.25 kg-A unit)
• Locking Pin to attach Hammer to Guide Tube
• Handle and Hammer Release Spring Plunger with Lockout
• Instruction Manual
• Charger
• Hard Case
• Battery Life: 12 Hours
• 3.7V/1.75Ah Lithium Ion Battery
• Complete Charge in 3 hours
• Results displayed/stored on Tablet-Based Application
• App is also available in the Google Play Store for Android
• App is also available in Apple Store for Iphone and Ipad