Group: AMETEK
Catalog excerpts
Series J Pneumatic Switch Mechanism Installation and Operating Manual Bleed Type Valve for Liquid Level Switches
Open the catalog to page 1Read this Manual Before Installing This manual provides information on the Series J Pneumatic Switch Mechanism. It is important that all instructions are read carefully and followed in sequence. Detailed installation and hook-up instructions are included in this manual. Conventions Used in this Manual Certain conventions are used in this manual to convey specific types of information. General technical material, support data, and safety information are presented in narrative form. The following styles are used for notes, cautions, and warnings. Notes Notes contain information that augments...
Open the catalog to page 2Description The Series ‘J’ Pneumatic Switch is a single airline, bleed type valve with a magnetically actuated flapper. The movement of the magnet assembly causes the switch to change state, either moving the flapper away from the nozzle allowing the pressure in the line to vent or moving the flapper against the nozzle causing pressure to build up in the line. Principle of Operation Figure 1 shows the attraction sleeve and magnet in the position when the liquid level is such that the attraction sleeve is below the field of the magnet. In this position, the flapper has been drawn away from...
Open the catalog to page 3Reversing Pilot Action All Series J Pneumatic Switch Mechanisms are shipped from the factory set-up for direct action; closed at high level. They can be field modified for the reverse (open) position by following the steps below: 1. First remove the upper shoulder screw from the actuator link and move it from the direct (D) position to the reverse (R); refer to Figure 3. 2. Loosen the screw that positions the spring bracket and move it from the direct (D) position to the reverse (R) position; refer to Figure 4. 3. Fasten screw securely. The switch is now setup for reverse action. Enclosing...
Open the catalog to page 4Locating Air Line Connection The air line connection may be rotated a full 360° for your convenience in connecting the instrument air supply. To rotate the switch and base assembly: 1. Loosen both the locking screw above the enclosing tube nut and the frame screw. Refer to Figure 5. 2. Rotate the entire base to the desired position. 3. Tighten both the locking screw and the frame screw. Enclosing tube Fall-out stop Frame screw Air line adapter Magnet 4.0.1 Remove complete mechanism 1. Disconnect air line from air line adapter. 2. Loosen both the locking screw above the enclosing tube nut,...
Open the catalog to page 55.0.2 Nozzle flapper readjustment 1. Connect an air line to the adapter. 2. Pressurize the air line. 3. Adjust the flapper adjustment screw for the desired action: Enclosing tube Magnet (yellow or red dot) Floppy adjustment screw 1 ⁄16" Diameter wire Direct Action a. Hold the magnet against the enclosing tube. b. Adjust the flapper adjustment screw with a 1⁄16" Allen wrench until the air flow stops, plus an extra one-eighth turn. Reverse Action a. Hold the magnet against the fall out stop. Refer to Figure 5 on page 5. b. Adjust the flapper adjustment screw with a 1⁄16" Allen wrench until...
Open the catalog to page 6Switch housing replacement assembly Standard carbon steel housing replacement assemblies are available. Refer to Figure 8. Replacement Kit Part Number Description Standard housing cover Gray Cover Blue Cover Cover assembly hardware Includes assembly hardware kit 89-6508-001. Figure 8 Carbon steel housing assembly Switch Codes Magnetrol level controls are identified by an alpha-numeric numbering system. The last digits describe the type of switch mechanism furnished. SWITCH MECHANISM AND ENCLOSURE Switch Code Red Dot Maximum Orifice Maximum Process Diameter Supply Temp. in. (mm) For models...
Open the catalog to page 7ASSURED QUALITY & SERVICE COST LESS Service Policy Return Material Procedure Owners of Magnetrol may request the return of a control or any part of a control for complete rebuilding or replacement. They will be rebuilt or replaced promptly. Controls returned under our service policy must be returned by Prepaid transportation. Magnetrol will repair or replace the control at no cost to the purchaser (or owner) other than transportation if: So that we may efficiently process any materials that are returned, it is essential that a “Return Material Authorization” (RMA) number be obtained from...
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