12V Solenoid coil Excavator accessories Solenoid coil diameter 19mm height 50mm

The solenoid coil is one of the core components of the solenoid valve, which is responsible for generating an electromagnetic field to make the valve be controlled to open or close. However, long-term use or improper operation may cause damage to the solenoid valve coil. The following will explain how to measure the solenoid valve coil and explain the cause of the solenoid valve coil burn out.
1. How to measure the solenoid coil
First determine the parameters of the solenoid coil, including diameter, length and number of turns, etc., and then use the ohm resistance gear of the multimeter to test it. Under normal circumstances, the resistance value of the solenoid coil should be within the specified range provided by the manufacturer, generally tens of ohms to thousands of ohms. If the test results exceed or fall below the specified range, the coil can be determined to be damaged and needs to be replaced or repaired.
2. Reasons for the solenoid coil to burn out
The solenoid valve coil is susceptible to environmental effects such as moisture, corrosion, and impact during use, resulting in damage to the insulation layer or deformation of the hook bottle, and local high temperature may cause the coil to burn. At the same time, the loosening of the coil interface, the short circuit of the wire, and the excessive voltage and current of the coil will also cause great damage to the coil and cause it to burn.
3. How to avoid solenoid coil burning
In order to avoid solenoid coil burning, we need to pay attention to the following points:
Install the solenoid valve in a dry and ventilated place and keep it clean
Try to avoid prolonged use or too frequent operation
Connect the coil connector correctly, secure the connector and mark the wire end
Use the required power supply and equipment interlock protection circuit
In the process of use, pay attention to observe whether the change of voltage and current is abnormal