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| Type 3731-3 Positioner in explosion-proof version | ||||||
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The Type 3731-3 Explosion-proof Positioner comes in a very rugged enclosure. If an explosive atmosphere forms inside the enclosure and ignites for whatever reasons, the enclosure will not only withstand this explosion, it will also prevent the passage of flames to the explosive surroundings. The construction complies with standardized requirements concerning wall thickness, clearance widths and lengths. The positioner's features include intrinsic safety, low power consumption and convenient configuration directly on site or using HART communication. Just one rotary pushbutton is needed for startup: turn to select parameters and push to activate them. This convenient method of operation is still possible in hazardous areas. The shaft design of the rotary pushbutton through the housing is explosion proof. The explosion-proof enclosure with separate terminal compartment allows direct cable entry or connection without spark barriers for cable conduit systems. Thanks to the liquid crystal display, all relevant data are visible at a glance. The Type 3731 immediately recognizes any zero error or system deviation during operation and issues an alarm indicating a certain error code on the display. The data is never displayed upside down thanks to the display which can be rotated by 180° at the push of a button. |
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