| 摘要 |
The embodiment of the invention provides a method for detecting a cable fault in a cable circuit of a flow meter. The method comprises the following step of: testing one or more first detection wires and one or more second detection wires of a cable circuit aiming at a detection wire open circuit fault; the method further comprises a step of: if a detection wire open circuit fault is not confirmed in the first detection wires and second detection wires, then testing the first detection wires and second detection wires aiming at a detection connection directional fault; the method further comprises a step of: testing one or more drive wires of the cable circuit aiming at a drive wire open circuit fault; and the method further comprises a step of: if the drive wire open circuit fault is not confirmed in the drive wires, then testing the drive wires aiming at a drive connection directional fault. |
