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J52 Scheda tecnica(PDF) 1 Page - Magnetrol International, Inc. |
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J52 Scheda tecnica(HTML) 1 Page - Magnetrol International, Inc. |
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1 / 8 page  J52 Refrigerant Level Switches Instruction Manual and Parts List DESCRIPTION The Magnetrol® Model J52 is designed specifically as a refrigerant level control for applications with commercial refrigerants including Ammonia, Freon, Methyl Chloride, and Sulphur Dioxide. Usage may include level alarm and/or pump control service on liquid accumulators or receivers. MODEL IDENTIFICATION OPERATING PRINCIPLE Figures 1 and 2 illustrate the simple and foolproof Magnetrol operating principle. Switching action is obtained through the use of a magnetic attracting sleeve, actuated by a float, and a switching mechanism. These two basic component assemblies are separated by a non-magnetic, pressure tight enclosing tube. The switch and magnet are assembled to a swinging arm which operates on precision stainless steel pivot sockets. OPERATING CYCLE At “Normal Operating Level” of liquid in the chamber (Figure 1), the float moves the magnetic attracting sleeve up the enclosing tube and into the field of the switch mecha- nism magnet. As a result, the magnet is drawn in tightly to the enclosing tube causing the switch to actuate, “making” or “breaking” an electrical circuit. As liquid level recedes, the float pulls the magnetic attracting sleeve downward until, at a pre-determined “Low Level” (Figure 2), the switch magnet releases and is drawn outward away from the enclosing body of the tube by a tension spring. This in turn deactuates the switch. When liquid level returns to normal (Figure 1), the float once again moves the magnetic attracting sleeve up at the enclosing tube, causing the switch to assume its original position. Pivot Return Spring Magnet Float Dry Contact Switch Enclosing Tube (non-magnetic) Attracting Sleeve (magnetic) Normal Operating Level Falling Level Figure 1 Figure 2 Housing Switch Connection 3 ⁄4" NPT 3 ⁄4" Socket Weld NEMA 4X Dry Contact J52-4101-002 J52-4111-002 NEMA 4 Lexan Dry Contact J52-4107-004 — NEMA 4X/7/9 Dry Contact J52-4102-002 J52-4112-002 |
Codice articolo simile - J52 |
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Descrizione simile - J52 |
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