Valve 9907-487 Woodward

WOODWARD 509PARTS,

Woodward Valve 9907-487

WOODWARD 750-1515rpm

WOODWARD 5441-673

WOODWARD 501,503,509,OPERATORCONTROLPANEL,EXCCOND

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Description

测量到的任何电流值都代表一定的信息。实际应用中,4–20mA电流环路工作在0mA至24mA电流范围。但0mA至4mA和20mA至24mA电流范围用于诊断和系统校准。由于低于4mA和高于20mA的电流用于诊断,可以认为介于0mA和4mA之间的读数表示系统中传输线断开。同样,介于20mA和24mA之间的读数可以表示系统中出现潜在的短路故障。


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