E H flowmeter turning red
According to customer's requirements, the successful case of instrument maintenance, maintenance, inspection, setting and debugging is shown as follows:
flowmeter turning red
Cause of 1. flow meter turning red
Flowmeters usually turn red for several reasons:
1. Measuring medium pressure is too high: When the medium pressure measured by the flowmeter exceeds the range that the flowmeter can withstand, the flowmeter will turn red. At this time, it is necessary to repair or replace the parts in time.
The temperature of the measuring medium is too high: the temperature of the measuring medium of the flowmeter exceeds the range that can be withstood, which is also one of the reasons that the flowmeter turns red.
3. Flowmeter failure: internal failure of the flowmeter is also the reason why the flowmeter turns red. For example, the flow meter sensor fails or is blocked.
3. Solution of flow meter turning red
1. Analyze the cause of the failure: When the flowmeter is found to turn red, it is first necessary to analyze the cause of the failure and clarify the type of failure of the flowmeter to determine the maintenance plan.
2. Clean the flow meter sensor: If the sensor of the flow meter is blocked, causing the flow meter to turn red, the sensor can be cleaned. Cleaning should pay attention to the use of professional cleaning fluid, avoid the use of strong acid or alkaline cleaning agent, so as to avoid damage to the flow meter.
3. Replace the accessories, when the measuring pressure of the flowmeter is too high or the temperature is too high
two. Treatment Methods of Common Faults of Electromagnetic Flowmeter
1. Measure height
The high or low abnormal measurement value of the electromagnetic flowmeter may be caused by many reasons, such as equipment failure, pipeline flow change, power supply voltage instability, etc. The following are the reasons that may cause abnormal measurement values to be high or low and the corresponding treatment methods.
1.1 equipment failure
If the abnormal measurement value is high or low, first consider whether the equipment is faulty. Handling methods for faulty equipment include:
Check the sensor cables and connectors to make sure they are in good contact with the host
Check the power supply voltage. If the power supply voltage is unstable, it may cause abnormal measured values. Measures need to be taken to solve the power supply problem.
Check whether the solenoid valve and reset switch of the host are working properly, and confirm whether the solenoid valve is open and the reset switch is on.
1.2 pipeline flow change
If the pipeline flow changes may cause abnormal high or low measurements. The following measures can be taken to solve the problems caused by changes in pipeline flow:
Check whether the pipe diameter, length and pressure match the parameters of the flowmeter
Check whether there are leaks or blockages in the pipeline, which may cause inaccurate measurement of the flowmeter
1.3 supply voltage unstable
Unstable power supply voltage may cause abnormal high or low measurement values of electromagnetic flow meters. Solutions include
· Regulated power supply
Reduce the length of the power line and the power load
2. No value is displayed on the flowmeter
If the electromagnetic flowmeter does not display the value correctly, it may hinder the flow measurement. The following are the possible causes of abnormal display and the corresponding handling methods.
2.1 display failure
If the display of the electromagnetic flowmeter is faulty, no value may be displayed. Solutions include
· Check the display for damage or looseness.
· Reset electromagnetic flowmeter to clear abnormal
2.2 supply voltage unstable
The unstable power supply voltage may cause the display screen of the electromagnetic flowmeter to fail to display normally. Solutions include the use of regulated power supply
Reduce the length of the power line and the power load
3. Electromagnetic flowmeter gives alarm sound
If the electromagnetic flowmeter gives an alarm, it may affect the normal operation of the equipment. The following are the reasons that may cause the alarm sound of the electromagnetic flowmeter and the corresponding processing methods
Gas or steam may be present in the 3.1 pipe
If there is gas or steam in the pipeline, the electromagnetic flowmeter may sound an alarm. Solutions include:
Add PVT anti-bubble liquid in the pipe
3.2 pipeline accumulation
There may be some accumulated material in the pipeline, which may also cause the electromagnetic flowmeter to sound an alarm. Solutions include:
· Check the pipeline regularly and remove the accumulation.
3.3 pipes are not clean
If the pipeline is not properly cleaned, it may cause the total amount of accumulated material in the pipeline to increase, and it may also cause the electromagnetic flowmeter to sound an alarm. Solution Pack
Including:
Regular in-pipe cleaning to maintain stable operation of equipment
Conclusion
Through the above common fault handling methods, the electromagnetic flowmeter equipment can be effectively maintained and repaired to ensure the operating efficiency and measurement accuracy of the equipment. In the process of using the electromagnetic flowmeter, if there is an abnormal situation, finding the cause and repairing the problem in time can prevent the equipment from being further damaged and increase the service life of the equipment.
For more information, it is recommended to consult the relevant experts or consult the product manual
1. Successful cases of instrument maintenance, maintenance, inspection, setting and debugging according to customer requirements
step one. Power-on check the cause of the fault.
II. When the instrument is opened, it is found that unknown liquid intrudes into the instrument, causing the instrument to malfunction.
3. It is found that the electronic components of the instrument power board are broken and disconnected, resulting in unstable current.
