Yokogawa EJA530E - Manual (Page 3)

ii
IM 01C25F01-01E
When using the Transmitters in a Safety Instrumented Systems(SIS)
application, refer to Appendix A in either IM 01C25T01-06EN for the
HART protocol or IM 01C25T03-01E for the BRAIN protocol.
6. Wiring ......................................................................................................... 6-1
6.1 Wiring Precautions ...........................................................................................6-1
6.2 Selecting the Wiring Materials .........................................................................6-1
6.3 Connections of External Wiring to Terminal Box ..........................................6-1
6.3.1
Power Supply Wiring Connection ......................................................6-1
6.3.2 External Indicator Connection............................................................6-1
6.3.3 Communicator Connection ................................................................6-1
6.3.4 Check Meter Connection ...................................................................6-2
6.3.5 Status Output Connection ..................................................................6-2
6.4 Wiring .................................................................................................................6-2
6.4.1
Loop Configuration ............................................................................6-2
6.4.2 Wiring Installation ...............................................................................6-2
6.5 Grounding ..........................................................................................................6-3
6.6 Power Supply Voltage and Load Resistance .................................................6-3
7. Operation ................................................................................................... 7-1
7.1 Preparation for Starting Operation .................................................................7-1
7.2 Zero Point Adjustment .....................................................................................7-2
7.3 Starting Operation ............................................................................................7-3
7.4 Shutting Down the Transmitter .......................................................................7-3
7.5 Setting the Range Using the Range-setting Switch ......................................7-4
8. Maintenance .............................................................................................. 8-1
8.1 Overview ............................................................................................................8-1
8.2 Calibration Instruments Selection ..................................................................8-1
8.3 Calibration .........................................................................................................8-1
8.4 Disassembly and Reassembly ........................................................................8-3
8.4.1
Replacing the Integral Indicator .........................................................8-3
8.4.2 Replacing the CPU Board Assembly .................................................8-4
8 .4.3 Cleaning and Replacing the Capsule Assembly ..........................8-4
8.5 Troubleshooting ................................................................................................8-5
8.5.1
Basic Troubleshooting .......................................................................8-6
8.5.2 Troubleshooting Flowcharts ...............................................................8-6
8.5.3 Alarms and Countermeasures ...........................................................8-8
9. General Specifications ............................................................................ 9-1
9.1 Standard Specifications ...................................................................................9-1
9.2 Model and Suffix Codes ...................................................................................9-5
9.3 Optional Specifications “◊” .............................................................................9-8
9.4 Dimensions ......................................................................................................9-10
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