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Thermo Ramsey - Hoferick Engineering GmbH

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Operation<br />

2-4<br />

2.2.1 Critical Wiring Conditions<br />

1. Ensure power is off at the mains<br />

2. Do not route load cell and signal cables in the same conduit with power<br />

cables or any large source of electrical noise.<br />

3. Earth ground all enclosures and conduits. A ground connection between all<br />

conduits is required.<br />

4. Connect the shields ONLY where shown.<br />

5. Check that all wires are tight in their connections.<br />

6. Never use a “megger” to check the wiring.<br />

7. A readily accessible disconnect device shall be incorporated in the field<br />

wiring. This disconnect should be in easy reach of the operator and it must<br />

be marked as the disconnecting device for the equipment.<br />

8. All conduits should enter the bottom of the enclosure. Do not run conduit<br />

through the top or sides of the enclosure.<br />

2.3 Field Mount Installation<br />

The field mount Integrator should be mounted in a controlled environment not<br />

be exposed to excessive vibration, heat, or moisture, and protected from direct<br />

sunlight. The Integrator may be mounted up to 3,000 feet from the scale<br />

(Figure 2-1).<br />

2.3.1 Mounting<br />

Mount the Integrator to a rigid, flat, vertical surface using four mounting holes<br />

provided on the back of the enclosure. Care should be taken to ensure the<br />

mounting surface is flat so as not to twist or warp the fiberglass enclosure when<br />

tightening the mounting bolts.<br />

Figure 2-1: Typical Micro-Tech 3101 Installation<br />

Operation <strong>Thermo</strong> Fisher Scientific<br />

REC 4175 Rev B

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