When many manufacturers use vortex flow timing, they find that the flow is getting smaller and smaller without human interference.
In normal use, this situation is absolutely abnormal. We need to examine our work closely. First check the filter, there is impurity blockage, there is a flow of places need to be cleaned. If the filter is not blocked, check the flowmeter's sensor to see if the impurity or entanglement is present in the impeller, or if the bearing gap is blocked, which will slow down the flow. Finally, let's see if the valve core on the flowmeter sensor is loose. If it is loose, the liquid can not be discharged completely normally, which will lead to inaccurate measurement of the vortex flow meter. The common measurement errors are generally these problems, and the general flowmeter inspection can work properly.
The vortex flowmeter works normally, but countless data show that when the vortex flowmeter fluid flows normally, it is not displayed, and the number of words for the total counter of the vortex flowmeter does not increase.
First, check that the relevant power cord, Fuse, function selection switch and signal line of the vortex flowmeter are damaged or poorly contacted.
Second, check the internal plate of the instrument, contact parts, etc., and check the relevant coil of the vortex flowmeter
Finally, check the internal fault of the sensor. All of the above 1 to 3 checks were confirmed as normal or cleared
However, there is still a fault phenomenon, indicating that the fault is located in the flow path of the vortex flowmeter sensor. You can check whether the impeller touches the inner wall of the sensor, whether the foreign body is stuck, and whether the shaft and bearing are stuck or damaged.
Vortex flowmeter fault check:
1. Use ohmmeter to troubleshoot fault points
2. The failure inspection of the replacement plate can be further detailed by replacing the support plate and replacing the failure plate.
3. Mark the position of the detection coil on the sensor body, drop the detection head, and then quickly move the iron plate below the detection head. If there is no increase in the number of words on the counter, check that the coil has broken and the solder is unsoldered
4. The vortex flowmeter can remove foreign matter and clean or replace damaged parts. After recovery, blowing or touching the impeller with your hand shall be without friction.