The environment for an Industrial IoT project in a large open pit mine is being scoped.
The location has a large amount of dust and the device will be exposed to less than 1 meter of water temporarily.
When the edge device is being chosen, which Ingress protection rating must be used?
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A. B. C. D.C.
When selecting an edge device for an Industrial IoT project in a large open pit mine, it is important to consider the environment in which the device will be operating. In this case, the environment has a large amount of dust and the device will be exposed to less than 1 meter of water temporarily.
To protect against these environmental factors, it is important to choose an edge device with an appropriate Ingress Protection (IP) rating. The IP rating system is a standard rating system used to define the level of protection that an electrical device provides against the ingress of solid and liquid objects. The IP rating consists of two digits. The first digit indicates the degree of protection against solid objects, while the second digit indicates the degree of protection against liquid objects.
In this scenario, the edge device will be exposed to dust, which is a solid object, and less than 1 meter of water temporarily, which is a liquid object. Therefore, we need to choose an edge device with a high level of protection against both solid and liquid objects.
Looking at the answer choices:
A. IP37 - This is not a valid IP rating. IP ratings range from IP00 to IP69K.
B. IP61 - This rating indicates protection against solid objects greater than 1mm and protection against vertically falling water drops. It does not provide sufficient protection against dust and temporary water immersion.
C. IP67 - This rating indicates protection against dust and temporary immersion in water up to 1 meter. This is the most appropriate rating for this scenario.
D. IP76 - This is not a valid IP rating. IP ratings range from IP00 to IP69K.
Therefore, the correct answer is C. IP67.