Emerson Process Management 2051 manual Troubleshooting, Rosemount, Reference Manual

Reference Manual

00809-0200-4101, Rev AA July 2008

Rosemount 2051

Section 5 Troubleshooting

OVERVIEW

SAFETY MESSAGES

Warnings

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1 Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1 Troubleshooting Guides . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-2 Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-5 Sensor Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . . page 5-6 Analog Input (AI) Function Block . . . . . . . . . . . . . . . . . . . page 5-7 LCD Transducer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-7 Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-9 Reassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-11

This section provides summarized troubleshooting suggestions for the most common operating problems. Also included are disassembly and reassembly procedures.

Follow the procedures described here to verify that transmitter hardware and process connections are in good working order. Always deal with the most likely checkpoints first.

Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol (). Refer to the following safety messages before performing an operation preceded by this symbol.

Explosions can result in death or serious injury.

•Do not remove the transmitter covers in explosive environments when the circuit is live.

•Transmitter covers must be fully engaged to meet explosion proof requirements.

•Before connecting a communicator in an explosive atmosphere, make sure that the instruments in the loop are installed according to intrinsically safe or nonincendive field wiring practices.

Static electricity can damage sensitive components.

•Observe safe handling precautions for static-sensitive components.

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