Operation And Maintenance; Safety Messages; Hardware - Emerson Rosemount 148 Reference Manual

Reference Manual
00809-0100-4148
4

Operation and Maintenance

4.1

Safety messages

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 . Refer to the following safety messages
before performing an operation preceded by this symbol.
WARNING
Failure to follow these installation guidelines could result in death or serious injury.
Ensure 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.
• 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.
Physical access
• Unauthorized personnel may potentially cause significant damage to and/or
misconfiguration of end users' equipment. This could be intentional or unintentional
and needs to be protected against.
• Physical security is an important part of any security program and fundamental to
protecting your system. Restrict physical access by unauthorized personnel to protect
end users' assets. This is true for all systems used within the facility.
4.2

Hardware

The Rosemount
scheduled maintenance.
™
148 Temperature Transmitter has no moving parts and requires minimal
Operation and Maintenance
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