BDPA可調(diào)式差壓開關(guān)，內(nèi)置聲光設(shè)定點顯示，適用于超壓、真空、壓差應(yīng)用場合。 按比例調(diào)節(jié)旋鈕允許在沒有壓力計的情況下改變開關(guān)壓力。BDPA的設(shè)置范圍為0.08" w.c. (20 Pa)到20" w.c. (5000 Pa)。 硅膠隔膜和PA 6.6閥體使得該系列BDPA與空氣和其他不可燃氣體結(jié)合使用。BDPA可調(diào)式差壓報警器提供了多種配置，允許利用它們的許多特性。

BDPA可由電池供電或24 VDC/VAC線供電。 如果連接電源，電池可以作為備用電源，以防停電。 當(dāng)設(shè)置點閾值達到時，一個本地響亮的可聽到的蜂鳴器和明亮的LED將表明設(shè)置點激活。 一個SPDT接點也可以被連接到遠程發(fā)送信號到DDC或管理系統(tǒng)。 在進行維護操作之前，用戶可以通過按壓位于蓋上開口處的按鈕來手動解除聲音和視覺指示。 如果儀器安裝在難以訪問的地方，則可以連接一個遠程，允許用戶在遠程位置關(guān)閉蜂鳴器和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.