Electric relative density meter operation method - Database & Sql Blog Articles

Device Name:

Electric Relative Density Meter

Equipment Model:

JDM-1

Applicable for particles with diameters less than 5mm, including non-cohesive soil and particles between 2-5mm. The sample quality should not exceed 5% of the total mass.

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

This device complies with the following standards:

Geotechnical Test Procedures SL237-1999,

Highway Geotechnical Test Procedures JTJ051-93

Electric Relative Density Meter Instructions

1. Plug in the power supply and turn on the power switch located on the right side of the instrument.

2. Lift the striker until the fixed pin is inserted into it to prevent it from falling. At this point, loosen the locking screws on both sides of the metal container, remove the container, and load the soil sample as specified. 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 gently.

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) to measure the results.

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

7. After testing, clean any remaining soil from the instrument, turn off the power switch, unplug the power cord, and cover the dust cover to protect the device.