Electromagnetic coil 0210E with thermosetting plug-in type connection

How to detect the damage of electromagnetic coil

1.Because the matching clearance between the rotary vane pump sleeve and the valve core of the valve body is very small, it is usually installed in parts. Once the grease is added too little or brought to the mechanical equipment residue, it is very easy to get stuck.

2.To solve this problem, stainless steel wire can be used to poke into the small round hole at the top, which can make the valve core bounce back. If we want to deal with this situation completely, we must disassemble the valve body, cheat the valve core and the valve core out, and use CCI4 to clean it, so that the valve core can be sensitive in the valve sleeve.

3.During disassembly and assembly, attention should be paid to the installation sequence of each component and the external wiring parts to ensure that the wiring is correct under the condition of reassembly. At the same time, it is necessary to check whether the oil pump hole of the pneumatic triple is blocked and whether the grease is sufficient.

4.If it is found that the electromagnetic coil of 0543 water valve is burnt out, you can remove the wiring of the valve body and use a multimeter to carry out measurement. If the test result is the guide, the coil has already been burnt out. The root cause of coil burning is to regain moisture, which leads to poor insulation and magnetic leakage, resulting in excessive current in the coil and the coil being burned out, so attention should be paid to waterproof and moisture-proof work.

5.In addition, if the torsion spring is too hard, it will cause the coil to burn out due to too much recoil force. If the number of turns of the coil is too small, it will cause insufficient adsorption force and cause the coil to burn out.

6.A digital multimeter must be prepared to measure the resistor of the valve body. Under normal circumstances, the electromagnetic coil of 0545 water valve should have a resistor of about 100 ohms. If the resistance of the test data display coil is infinite. It indicates that the coil has already burned out.

7.In the case of detection, the coil can also be electrified, and then the metal product can be put on the valve body. Usually, the valve body will be magnetized after being plugged in, and the metal product can be sucked up. If the metal product cannot be sucked up, it indicates that the coil has already been burned out.

8.When it is suspected that the coil of explosion-proof solenoid valve is short-circuited or short-circuited, a multimeter can be used to check its conduction status. If the detection result shows that the resistance value approaches zero or infinity, it indicates that the coil has already been short-circuited or short-circuited. However, the measured resistance is normal, which does not necessarily mean that the coil is good. It is necessary to check whether the coil is magnetized.

9.Whether the explosion-proof electromagnetic induction coil is burnt out due to external reasons or internal structure reasons, it should be paid attention to, and it must be detected on time in daily application to facilitate the early detection of problems.