Emerson 644 manual Section Introduction, Safety Messages

Reference Manual

00809-0400-4728, Rev AA June 2011

Rosemount 644

Section 1 Introduction

SAFETY MESSAGES

Warnings

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3 Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-4

Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that potentially raises safety issues is indicated by a warning symbol (). Please refer to the following safety messages before performing an operation preceded by this symbol.

Failure to follow these installation guidelines could result in death or serious injury.

•Make sure only qualified personnel perform the installation.

Explosions could result in death or serious injury.

•Do not remove the connection head cover in explosive atmospheres when the circuit is live.

•Before connecting FOUNDATION fieldbus in an explosive atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or non-intrinsic field wiring practices.

•Verify that the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations certifications.

•All connection head covers must be fully engaged to meet explosion-proof requirements.

Process leaks could result in death or serious injury.

•Do not remove the thermowell while in operation.

•Install and tighten thermowells and sensors before applying pressure.

Electrical shock could cause death or serious injury.

•Use extreme caution when making contact with the leads and terminals.

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