压力继电器是液压系统中当流体压力达到预定值时，使电接点动作的元件。压力继电器也可定义为将压力转换成电信号的液压元器件，客户根据自身的压力设计需要，通过调节压力继电器，实现在某一设定的压力时，输出一个电信号的功能。
压力继电器的调整足以满足客户的需求。
The pressure switch is field adjustable to meet the pressure required by customer's application.
对普通压力继电器的可靠性进行了详细分析，提出了保证压力继电器工作可靠的两种措施。
Based on the detailed reliability analysis for common pressure relay, two methods were proposed to reliably keep pressure relay work.
一般认为气体密度继电器可以正确反映气体绝缘电气设备的气体密度，而压力继电器则不能。
It is recognized that the gas density relay can reflex the gas density in gas insulated electric equipment correctly and the pressure relay cant do the same.
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