1900系列 微差压开关-德威尔Dwyer
1900系列 微差压开关是*通用的系列产品，技术先进，结构精密，性价比高。它为空调系统而设计，也用于其它多种工业场合。 1900系列开关的设定点从0.07到20"英寸水柱(1.8到508毫米水柱)，用于空气或兼容气体。设定点很容易调节，调节螺丝被保护在外壳内，以防止误调。产品通过了UL，CE，CSA和FM认证。
警告：产品只能用于空气及兼容气体。
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Temperature Limits: -30 to 180°F (-34 to 82.2°C).
Pressure Limits: 45" w.c. (11.2 kPa) continuous, 10 psig (68.95 kPa) surge.
Switch Type: Single-pole double-throw (SPDT).
Repeatability: ±3%.
Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. Derate to 10 A for operation at high cycle rates.
Electrical Connections: 3 screw type, common, normally open and normally closed.
Process Connections: 1/8" female NPT.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Screw type inside conduit enclosure.
Weight: 1 lb 4.5 oz (581 g).
Agency Approvals: CE, CSA, FM, UL. Optional EXPL Explosion-proof enclosure does not possess any agency approvals.
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