YOKOGAWA DPharp EJXC40A, User Manual

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Toc-4
IM 01C25W05-01EN
7.3.1.2 Checking with Integral Indicator .....................................7-28
7.3.1.3 Status information ...........................................................7-28
7.3.1.4 NE107 Status Information ..............................................7-29
7.3.2 Advanced Diagnostics .....................................................................7-30
7.3.2.1 What Is the Multi Sensing Process Monitoring Function?
........................................................................................7-30
7.3.2.2 Impulse Line Blockage Detection ...................................7-31
7.3.2.2.1 Blockage Determination ...................................................... 7-33
7.3.2.2.2 Combination of the Reference Value and Blockage Detection
Result .................................................................................. 7-34
7.3.2.2.3 Operation Parameters ......................................................... 7-36
7.3.2.2.4 Operating Procedure ........................................................... 7-38
7.3.2.2.5 Alert and Alarm Setup ......................................................... 7-39
7.3.2.2.6 Condition Confirmation ........................................................ 7-41
7.3.2.2.7 Reference Value Acquisition ............................................... 7-42
7.3.2.2.8 Checking the Blockage Detection Operating Capacity ....... 7-42
7.3.2.2.9 ILBD Execution .................................................................... 7-43
7.3.2.2.10 Tuning .................................................................................. 7-43
7.3.2.2.11 Resetting the Reference Value ........................................... 7-45
7.3.2.2.12 ILBD Parameter List ............................................................ 7-45
7.3.2.3 Heat Trace Monitoring ....................................................7-48
7.3.2.3.1 Flg temp coef Setting .......................................................... 7-49
7.3.2.3.2 Alarm Generation ................................................................ 7-49
7.3.2.3.3 Heat Trace Monitoring Parameter List ................................ 7-50
8. Maintenance .............................................................................................. 8-1
8.1 Overview ............................................................................................................8-1
8.2 Calibration Instrument Selection ....................................................................8-1
8.3 Calibration .........................................................................................................8-3
8.4 Disassembly and Reassembly ........................................................................8-4
8.4.1 Replacing the Integral Indicator .........................................................8-4
8.4.2 Replacing the CPU Board Assembly .................................................8-5
8.4.3 Cleaning and Replacing the Capsule Assembly ...............................8-6
8.5 Troubleshooting ................................................................................................8-7
8.5.1 Basic Troubleshooting .......................................................................8-7
8.5.2 Troubleshooting Flowcharts ...............................................................8-7
8.5.3 Alarms and Countermeasures ...........................................................8-9
9. Parameter Summary ................................................................................ 9-1
10. General Specifications .......................................................................... 10-1