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, it is suitable for non-cohesive soil and particles between 2-5mm. The sample mass should not exceed 5% of the total mass.

The instrument determines the maximum density and minimum void ratio to calculate the relative density.

This device complies with the following standards:

Geotechnical Test Procedures SL237-1999,

Highway Geotechnical Test Procedures JTJ051-93.

Instructions for Use:

1. Plug in 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 securely inserted into the striker to prevent it from falling. Loosen the locking screws on both sides of the metal container, remove the container, and load the soil sample according to specifications. Push the container back 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 carefully.

3. Once the start switch is turned on, the device enters standby mode.

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

5. At the end of the test, follow the procedure outlined in the Geotechnical Test Procedures (SL237–99, Relative Density Test SL237–010–99) to measure the results.

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

7. Clean any remaining soil from the device, turn off the power switch, unplug the power source, and cover the dust cover to protect the equipment.

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