| 摘要 |
PURPOSE: A gauge of a regulator is provided to provide a convenience to an operator by allowing the operator to easily recognize an upper limit and a lower limit from a standard value of desired liquid. CONSTITUTION: A gauge of the regulator includes a gauge body(14), a scale board(16) formed in a fixed interval from a side of the gauge body and having a plurality of scales for indicating a prescribed value, a pointer(18) located on the scale board and moved by the movement of an instrumentation part on the scale board, and a spectrum plate(40) located on an upper surface of the scale board for indicating a range of upper limit and lower limit from the standard value of the pointer. The spectrum board is divided into three sections. In the spectrum board, a standard range(42) including the standard value is indicated in green color and both danger range(46) besides the standard range are indicated in red color.
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