Specification: The Automatic Electronic Penetrometer is used for determination of the needle penetration according to EN 1426, ASTM D5 and AASHTO T49 standards. The penetration depth of the needle is determined with a pulse type electronic measuring system, which is separated from the plunger during the test, this allows the free  guidance of the plunger which virtually eliminates friction during the test.
Before each start of the test the measuring system automatically resets, and then the penetration needle moves down to the sample by using the electric drive, the needle position can be finely adjusted by using the joystick located on the front panel. A magnifying glass and an ultra- bright LED lamp are supplied to assist the operator; the plunger is then automatically released onto the sample and raised automatically after the testing period. The test result is displayed on the digital display. The plunger can easily be removed to calibrate its weight.
A water bath and a thermometer (IP38, ASTM 17C or 63C) required for the test are ordered separately.
The Automatic Electronic Penetrometer is supplied complete with;
Penetration Needle, 1 piece
Transfer Dish
Sample Cup, Ø 55x35 mm, 6 pieces, stainless steel
Technical Specifications
Measuring Range: 0-50 mm
Resolution: 0.01 mm
Test Load: 100 g (plunger 97.5 g + 2.5 g penetration needle)
Test Time: 5 seconds (adjustable from 0.1 to 9999 sec.)
Dimensions: 270x480x750 mm
Weight (approx.): 24 kg
Power: 75 W

Ltekonline are the manufacturers of Automatic Digital Bitumen Penetrometer used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Bitumen Asphalt Testing Lab Equipment for Engineering Teaching Lab in Universities