Unattended Weighbridge Modification from 50 Tons to 200 Tons

For the wiring installation of an unattended automatic weighing system, the first consideration is the installation location of the equipment and the environmental conditions of that location, addressing the issues of embedded parts and foundations:

1. First, determine the installation positions for related equipment such as traffic lights, barriers, card readers, infrared light curtains, large screens, speakers, and control cabinets.

2. Confirm the wiring for power supply and signal lines from the relevant equipment to the controller and the weighbridge room.

3. Connect a signal line between a pair of infrared light curtains. Since the area between them is a concrete foundation or hard soil slope, where wiring is impossible or cannot guarantee long-term use, the cables must pass under the weighbridge and be protected with PVC conduits to extend their service life.

4. All cables for other related equipment should be protected with PVC conduits. Use 90° elbows at bends, and the diameter of the conduits should fully account for the number of cables to facilitate construction and future maintenance.

5. If equipment cables must pass through areas where vehicles travel and cannot be rerouted, in the case of concrete pavement, grooves must be cut into the surface to place iron pipes. After placing the iron pipes, there must be a 3 cm gap between the pipe and the original concrete surface, filled with concrete to ensure longevity. If the surface is unpaved soil, excavate to a depth of 50 cm and place iron pipes to ensure durability.

Common Troubleshooting Solutions for Unattended Weighing Systems

Large Screen Not Displaying

1. Check the power supply to the large screen to see if it is receiving electricity.

2. Check the network cable from the switch to the large screen for looseness. Remove and reinsert the cable to see if the lights on the switch and communication card light up normally.

3. Check the computer’s IP address, as it may have changed or conflicted.

Troubleshooting for Voice System Malfunction

1. Check the connection cable from the amplifier to the computer for looseness. It is recommended to unplug and replug it for testing.

2. Check if the cable from the amplifier to the speaker is properly connected.

3. Test whether the computer’s speaker port has any issues.

Common Troubleshooting Methods for Long-Distance Card Readers

1. Check the power supply to ensure it is functioning normally.

2. Check the signal cable of the card reader. If a 232 to 485 converter is used, it is recommended to replace the adapter for testing.

3. If a 232 to 485 adapter is not used, check the connection cable for damage. If undamaged...

Common Troubleshooting Methods for Control Cabinet Malfunctions

1. Check the power supply to the control cabinet to ensure it is receiving electricity normally.

2. Check the cable from the control cabinet to the computer’s COM port for looseness. Open the COM housing to check for loose or desoldered wires. Also, verify if the computer’s COM port is functioning properly.

Unattended Weighbridge Modification from 50 Tons to 200 Tons