After the sampling device reaches the predetermined sampling point, the point selection mechanism will automatically lock, start the sampling system, drive the screw sampling head lifting mechanism to the preset coal seam depth to start sampling, and close the aggregate bin.
Set the working mode selector switch on the control panel of the electrical cabinet to the manual state, and all equipment shall be started and stopped with the corresponding operating switch, which is used for routine maintenance and overhaul.
Set the working mode selector switch on the control panel of the electrical cabinet to the semi-automatic state. The difference between the automatic working mode and the semi-automatic working mode is that the sampling device needs to be manually selected and positioned. Other working modes are the same as the automatic working mode.
Set the working mode selection switch on the control panel of the electrical cabinet to the automatic state, press the system start button, and the sample preparation system will automatically start and stop in sequence.
The electric control system adopts the combination of programmable controller and industrial personal computer. It can realize automatic, semi-automatic and manual working modes, and realize unattended working state.
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