An integrated electronic control arrangement is disclosed in the illustrative environment of burner such as in a gas-fired furnace. The control incorporates a self-test feature which shuts down the furnace in the event of any one of a number of possible sensed faults. Self-testing occurs ...
This article focuses on a new gas-furnace safety-switch from Micro Pneumatic Logic. The diaphragm-type differential pressure switches use a single diaphrag... Boggs,Robert,N. - 《Design News》 被引量: 0发表: 1992年 Two-wire Passive Electronic Pressure Switch Research In order to overcome the...
A common application is for the measurement of draught and furnace air pressure. In its simplest form, the ‘wet’-type pressure-measuring instrument consists of a glass U-tube partly filled with liquid (Figure 19).Pressure or suction applied to one limb of the U-tube produces a displacement...
Product name:Pressure control system pressure switch 24v for steam boilers;Application:Pressure Control System;Connection:Thread;Connecting Diameter:DN8 G1/4 1/4 ;Set Point Accuracy:Switch point deviation can be ±15% rating;Min.contact current and vo
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The test nipple is integrated in metal housing as standard. Application Differential pressure switch in furnace, ventilation, and air conditioning applications. Differential pressure switch: Suitable for employment with gas family 1, 2, 3, and othe...
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The second frit seal is made in an atmosphere furnace containing the desired fill pressure of starting gas, with mercury-sodium amalgam already dispensed into the tube and residing at the cool end which was sealed first. There is no exhaust tube, and no separate exhaust and filling process. ...
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