TD118 - type 2 Photoelectric soil liquid plastic limit combination tester

wooden case

TD118-2 photoelectric type soil liquid plastic limit joint measurement instrument

TD118-2 photoelectric soil liquid plastic limit combined tester is developed according to T0118-1-2007 "Liquid Limit and Plastic Limit Combined Test Method" in the People's Republic of China Hengye Standard: JTG E40-2007 "Road Geotechnical Test Regulations". It is used for particle size less than 0.5mm. The soil with organic mass less than 5% of the total mass of the sample is used to test the limit water content (liquid limit and plastic limit) of the soil to divide the soil class, calculate the natural consistency and plasticity index, which is an essential instrument for highway engineering design and construction.

standard

Low ISO 17892-17 (E) were disappointed

Ii. Technical parameters of TD118-2 photoelectric soil liquid plastic limit joint measuring instrument

Maximum range: 22mm

Resolution: 0.1mm

Measurement nonlinear error: better than 2%

Contact indicating sensitivity: >10M

Total weight: 76g±0.2g and 100g±0.2g

Cone Angle: 30°±0.2°

Measurement reading depth into the soil: 0 ~ 22mm

Reading accuracy: 0.1mm, estimated reading 0.05mm

Cone fall to reading time: 5 seconds

Electromagnetic suction >100g

Power supply: 220V, 50HZ

Optical magnification: 13

Dimensions: 300×164×285

Net weight: 5 kg

Iii. Structure principle of TD118-2 photoelectric soil liquid plastic limit joint measuring instrument

1, structure 1) foot 2) base 3) lifting seat 4) screw 5) cone meter 6) Optical system 7) frame 8) reading window

2. Working principle: when the test cup of the soil sample is installed on the lifting seat, lift the cone instrument, rotate the screw to make the lifting seat rise, and the surface of the soil sample and the cone tip just contact, the indicator light is on, and the cone sinks by itself. There are glass lines on the cone instrument, which are projected to the reading window screen by the optical magnification system, and the depth of cone can be read.

Iv. Debugging of TD118-2 photoelectric soil liquid plastic limit joint measuring instrument:

Place the instrument on the platform, adjust the foot bolts, so that the base plane and the lifting platform plane level; Switch on the power supply, check whether the electromagnetic suction iron firmly suction conometer, conometer is free when the power is off, vertical falling; Adjust the optical system to make the image clear and adjust the zero position line to zero

V. TD118-2 photoelectric soil liquid plastic limit joint tester

More than ready to do a good job, you can be the good soil sample test glass on the lift, make up, try a cup with the rising, the surface of the soil sample and cone Cone tip just contact, indicating lights, stop running movements, conical instrument set time to sink, such as in automatic measurement condition, the 5 s delay, read a number indicator, Prompt the operator to read the data on the window that is the cone depth. If it is in the state of manual measurement, when the vertebral tip is in contact with the soil surface, contact two indicator lights, it is necessary to press the manual measurement button, the cone meter will fall freely, delay 5 seconds, reading indicator lights two, read the data after the test, press the reset button, the reading display is zero.

Vi. Maintenance of TD118-2 photoelectric soil liquid plastic limit joint measuring instrument: after each test, it is necessary to clean the instrument comprehensively, do not leave the broken soil and dust on the instrument, and do not directly connect the optical components to the door by hand to prevent scratches. After cleaning, put the instrument in a box and place it in a dry place away from direct sunlight.