This instrument is based on the industry standards of the People's Republic of China JTG E20-2011《 In the test procedures for asphalt and asphalt mixtures for highway engineering T0604-2011《 Designed and manufactured in the requirements specified in the asphalt needle entry test, it is suitable for determining the needle entry of road petroleum asphalt, modified asphalt, and the needle entry of residues after evaporation of liquid petroleum asphalt or emulsified asphalt； After purchasing optional accessories, the cone inlet of paraffin, grease and other substances can be measured, and it can be widely used in the food industry, transportation and highway engineering and other industrial departments.

1. Main technical characteristics
1、This instrument is the most advanced design, best performance and most complete functions of the company.
2、This instrument adopts computer control technology to automatically complete the needle induction test. LVDT Computer calibration technology ensures accurate and reliable measurement.
3、Self-developed computer control software can enable communication with computers； Through the test of needle inlet degree, the computer can automatically draw and print the Nomo diagram of the asphalt needle inlet relationship. Through the Nomo diagram, the needle inlet index can be calculated and determined. PI value； Asphalt equivalent softening point T800； Asphalt equivalent crispy point T1.2； Plastic temperature range of bitumen ΔT。
4、The lifting mechanism is novel in design and easy to adjust.
5、Different configurations such as standard needles, sample dishes, thermometers and weights can be purchased separately, which can be suitable for national standards. GB/T 4509-1998、GB/T 4509-2010 Requirements.
    The biggest feature of this instrument is: advanced mechanical and circuit design, fully automatic completion of needle induction test； Advanced software design allows automatic drawing and printing of asphalt needle inlet relationship Nomo diagrams, thereby calculating and determining various parameters.

2. Main technical parameters and indicators

Needle inlet meter parameters

1、Measurement range: (0 ～600）Needle entry；
2、Resolution: 0.1 pin entry；

3、Time setting range: (0 ～60）Seconds, the time error is less than ±0.1Second；
4、Heater power: 200 W；

5、Standard needle: 50 ㎜、2.5g±0.05g（ Basic configuration)；
6、Support lifting frame: Double lifting adjustment mechanism for easy needle tip alignment with the sample plane；
7、Working power supply:           AC (220±10％V),50Hz；
8、Dimensions: 280 mm×350mm×700mm（ long ×Width ×high).

Special Note:
Standard configuration JTG E20-2011 Standard, other configurations can be purchased separately according to the requirements of the user when ordering.

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