客户告诉我们，DA/DS系列波登管压力开关是最好的压力开关。Mercoid DA/DS系列是世界上最广泛的压力开关系列之一。DA/DS系列具有极高的灵敏度和良好的重复性。DA型设有两个外部调整装置，一个用于设置高压工作点，一个用于设置低压工作点。死区，高和低设定值之间的差异，是可调的全尺寸。DS型号配备了一个单独的外部调整设置操作点。对于无汞开关，选择快速动作开关或密封快速动作开关。也可提供密封水银开关。

●  Visible calibrated dial provides an easy and fast check without having to open device causing dangerous conditions to operators

●  On/off indication (except hermetically sealed snap switch models) gives operator clear indication of state of switched equipment that could be located in another location

●  Adjustable or fixed deadband supports control applications by reducing equipment wear-out by unnecessary recycling

●  External switch setpoint adjustments reduces set-up time

●  Pressure ranges of full vacuum to 8000 psig gives application designers the ability to specify standard equipment, simplifying install and training, and reducing servicing costs

●  UL listed, CSA approved many models FM approved to support rigorous process applications and regulations

●  General purpose, weatherproof or explosion-proof enclosures for a variety of indoor or outdoor environments meeting the needs of multiple applications and uses