Yokogawa EJX118A User Manual

Page 3

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IM 01C25H01-01E

4.5

Affixing the Teflon Film ....................................................................................4-5

4.6

Rotating Transmitter Section ...........................................................................4-5

4.7

Changing Integral Indicator Direction ............................................................4-5

5.

Wiring ......................................................................................................... 5-1

5.1

Wiring Precautions ...........................................................................................5-1

5.2

Selecting the Wiring Materials .........................................................................5-1

5.3

Connections of External Wiring to Terminal Box ..........................................5-1
5.3.1

Power Supply Wiring Connection ......................................................5-1

5.3.2

External Indicator Connection............................................................5-1

5.3.3

Communicator Connection ................................................................5-1

5.3.4

Check Meter Connection ...................................................................5-2

5.3.5

Status Output Connection ..................................................................5-2

5.4

Wiring .................................................................................................................5-2
5.4.1

Loop Configuration ............................................................................5-2

5.4.2

Wiring Installation ...............................................................................5-2

5.5

Grounding ..........................................................................................................5-3

5.6

Power Supply Voltage and Load Resistance .................................................5-3

6.

Operation ................................................................................................... 6-1

6.1

Preparation for Starting Operation .................................................................6-1

6.2

Zero Point Adjustment .....................................................................................6-2

6.3

Starting Operation ............................................................................................6-3

6.4

Shutting Down Operation ................................................................................6-3

6.5

Venting or Draining Transmitter Process-Detector Section ........................6-3
6.5.1

Draining Condensate for Flushing Connection Ring .........................6-3

6.5.2

Venting Gas for Flushing Connection Ring ........................................6-4

6.6

Setting the Range Using the Range-setting Switch ......................................6-4

7.

Maintenance .............................................................................................. 7-1

7.1

Overview ............................................................................................................7-1

7.2

Calibration Instruments Selection ..................................................................7-1

7.3

Calibration .........................................................................................................7-1

7.4

Disassembly and Reassembly ........................................................................7-3
7.4.1

Replacing the Integral Indicator .........................................................7-3

7.4.2

Replacing the CPU Board Assembly .................................................7-4

7.5

Troubleshooting ................................................................................................7-4
7.5.1

Basic Troubleshooting .......................................................................7-4

7.5.2

Troubleshooting Flowcharts ...............................................................7-5

7.5.3

Alarms and Countermeasures ...........................................................7-7

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