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E3A-MA3A-H11 Datasheet(PDF) 11 Page - Magnetrol International, Inc. |
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E3A-MA3A-H11 Datasheet(HTML) 11 Page - Magnetrol International, Inc. |
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11 / 48 page  11 48-635 E3 Modulevel Displacer Level Transmitter To install: 1. Align the Modulevel process connections with those on the vessel and attach accordingly, based upon the connection type. Appropriate gaskets and bolting will be required for flanged connections. Install the flange bolts and nuts and tighten alternating nuts in a star pattern. Flange bolting torque specifications are listed on page 9. NOTE: It is recommended that shut-off valves be installed in each equalizing line to the chamber, along with a drain valve (refer to Figure 8). Equalizing lines should be sized at least as large as the connections provided at the chamber. 2. Make sure that the chamber is vertically level within 3° in each direction to ensure frictionless operation of the internal displacer. Caution: All Modulevels are shipped from the factory with the enclosing tube tightened and the transmitter head set screws locked to the enclosing tube. Failure to loosen the set screws prior to repositioning the supply and output con- nections may cause the enclosing tube to loosen, resulting in the possible leakage of the process liquid or vapor. 3. Loosen the transmitter head lock screws (socket type) and position conduit outlet in the desired direction. See Figure 7. 4. Retighten lock screws. NOTE: Since the transmitter head is rotatable through 360º, it is impor- tant to make certain that the controller locking screws are tight before making electrical connections. 2.5 Wiring Caution: All versions of the E3 Modulevel transmitter operate at voltages of 11–36 VDC. Higher voltage will damage the transmitter. Wiring between the power supply and the E3 Modulevel transmitter should be made using minimum of 18 AWG shielded twisted pair instrument cable. Wiring must be suit- able for temperatures up to at least +85° C. Within the transmitter enclosure, connections are made to the terminal strip and the ground connections. When installing a remote mount E3 transmitter, refer to Figures 11 & 12 on page 14 for wiring connections. The directions for wiring the E3 transmitter depend on the application: • General Purpose or Non-incendive (Cl I, Div. 2) • Intrinsically Safe • Explosion Proof WARNING! Explosion hazard. Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous. Liquid Level Figure 8 Chamber Type Installation Side-Side Process Connections |
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