Dwyer DA/DS系列 波登管壓力開關
壓力范圍可到8000psi(55MPa)
DA/DS系列 波登管壓力開關是公認的世界上型號最全，應用范圍最廣的壓力開關。

D系列具有非常高的靈敏度和穩(wěn)定重復性能。 DA型帶有兩個外部調(diào)整旋鈕，一個用于調(diào)整高壓設定點，一個調(diào)整低壓設定點。在高設定點和低設定點之間的盲區(qū)是可以在全量程范圍內(nèi)調(diào)整。DS型帶單個設定點調(diào)整旋鈕，盲區(qū)是固定的，在工廠設定好后不能在現(xiàn)場改變，開關的種類可以選擇快開開關，全密封快開開關或全密封水銀開關。

Series DA/DS Bourdon Tube Pressure Switches

Pressure Ranges to 8000 psi (551.6 bar)

Customers tell us that the SERIES DA/DS are the best pressure switches made. The Mercoid DA/DS Series is one of the world’s broadest lines of pressure switches. The DA/DS Series has extremely high sensitivity and great repeatability. The DA Models are equipped with two external adjustments, one for setting high pressure operating point, the other for setting low pressure operating point. Deadband, the difference between high and low setpoints, is adjustable over the full-scale. The DS Models are equipped with a single external adjustment for setting operating point only. For mercury-free switches, choose between the snap action switch or hermetically sealed snap action switch. Hermetically sealed mercury switch also available.