Seeking advice! Problems with the coil of the intrinsically safe solenoid valve!
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I saw a post today. It says: The coil of the intrinsically safe solenoid valve cannot be tested for continuity. I don’t know if what I’m saying is correct. If what that guy said is correct, then how can one determine whether an AN electromagnetic valve coil is good or not? I humbly ask the experts to share their insights
It is not recommended to use on/off testing to determine the condition of the coil in intrinsically safe solenoids, as this may cause excessive current and damage to the coil. The correct method is to use a multimeter to measure the resistance value of the coil in order to make a judgment. If there is an open circuit inside the coil, the resistance value will show as infinity ； If the coil is short-circuited, its resistance value will be very low. Under normal conditions, the resistance value should be within the specified range. .
Can’t it be measured in explosion-proof areas? If the wire plugs or terminal blocks are in a non-explosion-proof area, they should be measurable, for reference.
In explosion-proof areas, can’t a multimeter be used to check for continuity? Are there any regulations? Standard operating procedures?
This is related to the prevention level. It is best to check your organization’s safety regulations and operating procedures. In short, there are many measurement methods available for reference.