Yokogawa EJX440A User Manual
Ejx series hart communication type, User’s manual
Table of contents
Document Outline
- Contents
- 1. Introduction
- 2. Conditions of Communication Line
- 3. Operation
- 3.1 Basic Operation of the 275 HART Communicator
- 3.2 Parameter Usage and Selection
- 3.3 Menu Tree
- 3.4 Basic Setup
- 3.5 Detailed Setup
- 3.5.1 Bi-directional Flow Measurement
- 3.5.2 Integral Indicator Display Mode
- 3.5.3 Integral Indicator Scale Setup
- 3.5.4 Unit for Displayed Temperature
- 3.5.5 Unit for Displayed Static Pressure
- 3.5.6 Test Output
- 3.5.7 Sensor Trim
- 3.5.8 Trim Analog Output
- 3.5.9 Burst Mode
- 3.5.10 Multidrop Mode
- 3.5.11 External Switch Mode
- 3.5.12 CPU Failure Burnout Direction and Hardware Write Protect
- 3.5.13 Software Write Protect
- 3.5.14 Signal Characterizer
- 3.5.15 Process Alarm
- 3.5.16 Status Output (option code AL)
- 3.5.17 Capillary Fill Fluid Density Compensation
- 4. Diagnostics
- 4.1 Self-Diagnostics
- 4.2 Advanced Diagnostics
- 4.2.1 Multi-sensing Process Monitoring
- 4.2.2 Impulse Line Blockage Detection
(ILBD)
- 4.2.2.1 Blockage Detection
- 4.2.2.2 Combination of Reference Result and Blockage Detection
- 4.2.2.3 Operation Parameters
- 4.2.2.4 Operating Procedure
- 4.2.2.5 Alarm and Alert Setting
- 4.2.2.6 Condition Check
- 4.2.2.7 Obtain Reference Values
- 4.2.2.8 Capability Test of Blockage Detection Operation
- 4.2.2.9 Start ILBD Operation
- 4.2.2.10 Tuning
- 4.2.2.11 Reset of Reference Value
- 4.2.2.12 ILBD Parameter List
- 4.2.3 Heat Trace Monitoring
- 4.3 Alarms and Countermeasures
- 5. Parameter Summary
- Appendix 1. Safety Instrumented Systems Installation
- Appendix 2. ILBD Check List
- Revision Information