| 摘要 |
<p>An apparatus (10) and method for selecting a fluid material to be supplied to a material applicator (24) from a plurality of fluid materials (23), the material applicator being located in a hazardous area (12), includes a control circuit (26) located in a non-hazardous area (11), a valve selection circuit (27) located in the non-hazardous area and a valve actuation circuit (28) located in the hazardous area.</p> |
