Dwyer微差压开关BDPA

BDPA可调式差压开关，内置声光设定点显示，适用于超压、真空、压差应用场合。 按比例调节旋钮允许在没有压力计的情况下改变开关压力。BDPA的设置范围为0.08" w.c. (20 Pa)到20" w.c. (5000 Pa)。 硅胶隔膜和PA 6.6阀体使得该系列BDPA与空气和其他不可燃气体完美结合使用。BDPA可调式差压报警器提供了多种配置，允许利用它们的许多特性。

BDPA可由电池供电或24 VDC/VAC线供电。 如果连接电源，电池可以作为备用电源，以防停电。 当设置点阈值达到时，一个本地响亮的可听到的蜂鸣器和明亮的LED将表明设置点激活。 一个SPDT接点也可以被连接到远程发送信号到DDC或管理系统。 在进行维护操作之前，用户可以通过按压位于盖上开口处的按钮来手动解除声音和视觉指示。 如果仪器安装在难以访问的地方，则可以连接一个远程联系人，允许用户在远程联系人位置关闭蜂鸣器和LED。

Service:Air and noncombustible, compatible gases.

Wetted Materials:Diaphragm: Silicone; Housing: Switch Body: PA 6.6 and POM; Cover: Polystyrene.

Temperature Limits:32 to 122°F (0 to 50°C).

Pressure Limits:40" w.c. (10 kPa).

Electrical Rating:1.0 A @ 30 VDC/VAC.

Switch Type:SPDT.

Alarm Indication:Red LED and audible alarm.

Alarm Level:Approximately 90 db at 4" (10 cm).

Alarm Acknowledge:Button press.

Power Requirements:16 to 30 VDC, 18 to 30 VAC or 3.6 V LS14250 lithium metal battery, installed functional, user replaceable. Battery acts as back-up if power is lost.

Battery Life:Approximately 1.5 years with 3.6 V/1.2 Ah.

Repeatability:±15% FS.

Electrical Connections:Screw terminals. M20x1.5 with cable strain relief or optional 1/2" NPT connection.

Process Connections:5/16" (7.94 mm) outside diameter tubing, 1/4" (6.0 mm) inside diameter tubing.

Mounting Orientation:Vertically, with pressure connections pointing downwards.

Enclosure Rating:IP21.

Weight:6.1 oz (173 g).

Agency Approvals:CE, RoHS.

Warranty:5 year limited warranty.