Electric relative density meter method - Database & Sql Blog Articles

Device Name:

Electric Relative Density Meter

Equipment Model:

JDM-1

Electric Relative Density Meter

Designed for particles with diameters less than 5mm, including non-cohesive soil and particles ranging from 2 to 5mm. The sample mass should not exceed 5% of the total mass.

This instrument is used to determine the maximum density and minimum void ratio of soil in order to calculate the relative density.

The device complies with the following standards:

Geotechnical Test Procedures SL237-1999,

Highway Geotechnical Test Procedures JTJ051-93.

Electric Relative Density Meter Instructions

1. Connect the power supply and turn on the power switch located on the right side of the device.

2. Lift the striker until the fixed pin is inserted into it to prevent it from falling. Loosen the locking screws on both sides of the metal container, remove the container, and load the soil sample as per specifications. Push the container into the positioning plate and tighten the locking screw. Hold the striker with one hand and slowly pull out the fixed pin to lower the striker.

3. When the start switch is turned on, the instrument enters standby mode.

4. Adjust the timer to the desired time setting, and the instrument will begin operation.

5. At the end of the test, follow the procedures outlined in the Geotechnical Test Procedures (SL237–99, Relative Density Test SL237–010–99) for measurement.

6. After compaction, place the hoe down, loosen the locking screw, and remove the metal container and casing.

7. After completing the test, clean any remaining soil from the device, turn off the power switch, unplug the power cord, and cover the dust cover.

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