The treatment of common faults in vortex street flowmeter

The eddy street flowmeter sometimes presents such questions in its application. Today, the technical personnel of tokugawa have summarized these questions to us for reference.

1. There is no indication of the secondary appearance of the horizontal axis cable. Because of long running, combined with the influence of dust, the formation of flat axis cable faults, after cleaning may replace the flat shaft wire, the doubt can be handled.

2. Because the secondary appearance of the surface coil fixed screw loose, forming the head to sink, the pointer and the case conflict large, the action is not clever, after adjusting the watch head and fixed from the beginning, the question is handled accordingly.

Use environmental questions. Especially the sensor installed in the well some, because environmental humidity is big, the formation of circuit board be affected with damp be affected with damp, through the corresponding technical measures, to some environmental humidity sensor with probe some conversions are made from scratch some separation processing, switch the separation type sensor, so the good working environment, the current some appearance outstanding operation.

4. Because the on-site adjustment is not good, maybe because of the change of actual situation after adjustment. The vibration noise balance adjustment and sensitivity adjustment are not good. Perhaps because of the change of the scene after the adjustment after a period of time, the formation of the instruction questions.

5. Reasons for the orientation of parameters. Due to parameter fault, the appearance indication is wrong. The parameter fault causes the second appearance to be full of frequency accounting fault. Full frequency phase almost makes instructions for a long time, the actual full frequency gets calculation of full frequency makes instructions widespread shaken, not reading, and the inconsistency of material parameters and influence of the parameters of all concluded that, after all, after contact each other from calibration parameters has been concluded that, to deal with the question.

6. Secondary appearance problems. Having some trouble with this is more, include: circuit board is break a appearance, range set there appeared a single bit bad, K coefficient setting there appeared a single bit bad, not conclude that range setting and K coefficient setting.

The fourth route is in doubt. Some circuit lines on the surface cohesion is wonderful, carefully check, some loose joint has actually form the suspension loop, although some joint cohesion is very tight but because doubt vice line fastening screw fastening on the line of leather, also makes the circuit.

8. The secondary appearance and subsequent appearance of the link question. For subsequent appearance question maybe for subsequent appearance maintenance, the second appearance of mA output circuit suspended, about the second appearance of this type, especially about the follow-up recorder, damage cannot be modified in a recorder for a long time, must pay attention to the output of the sub second appearance.