TheEmerson Topworx DX PST SwitchBox带有HART 7协议提供有价值的阀门数据和诊断信息，从而实现流程应用程序的数字转换。新的DX PST与现有的阀门和控制系统无缝集成，使操作员可以访问可用于预测和安排维护的关键阀数据，趋势和诊断。
该单元的部分中风测试可确保系统的可靠功能，而无需关闭过程。如果检测到紧急情况，则确认阀门将完全关闭并停止该过程的安全功能，并通过简单地按本地PST按钮来激活测试，而无需其他设备。为了防止在不安条件下进行重大故障，该部门将覆盖测试以执行紧急关闭（ESD）。
自适应DX PST经过严格和危险应用的操作认证，旨在确保阀门的完整性，从而改善整体安全和设施的正常运行时间。
“The digital transformation of the process industry continues to make operations safer and more productive,” says Prayag Vatsraj, global product manager of Emerson’s switchbox. “The DX PST with HART 7 supports digital transformation by providing reliable data that delivers valuable insight into the condition of valve assemblies that ensures the integrity of the system without shutting down the process.”
HART协议构建了另一层信息，以确保数据，趋势和诊断的监视并绑定到工业互联网上。该信息可用于有效预测和安排维护。
Capable of Safety Integrity Level 3 (SIL 3), the DX PST is available with an integrated 2oo2 or 2oo3 solenoid valve redundancy when paired with Asco Series advanced redundant control system (ARCS) to further enhance safety and open terminals that allow an additional pressure transmitter along with two pressure switches. The discrete valve controller offers simple local and remote calibration.
