Heat-shielded thermocouple
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What do 1 and 3 represent in the heat-shielded thermocouple WRN-13T?
The models offered by different manufacturers may not be identical; sometimes, even though the product is the same, it has different names. For example, corn is referred to as \"rod head\" in some places
Check the manufacturer’s model specifications. . . .
Some models are indicated separately; for example, WRN-240: the 2 denotes fixed threads, 4 indicates explosion protection, and 0 refers to a protective tube with a diameter of 16 mm. But this model cannot be separated; the number 13 refers to a 13-inch casing, which is a tapered, welded-type casing. The way most domestic manufacturers denote this model is similar.