Yokogawa EJA440E User Manual

Page 3

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IM 01C25T01-06EN

3.3.3

Integral Indicator Display Mode .......................................................3-16

3.3.4

Integral Indicator Scale Setup ..........................................................3-16

3.3.5

Unit for Displayed Temperature .......................................................3-18

3.3.6

Sensor Trim ......................................................................................3-18

3.3.7

Trim Analog Output ..........................................................................3-20

3.3.8

External Switch Mode ......................................................................3-20

3.3.9

CPU Failure Burnout Direction and Hardware Write Protect ..........3-21

3.3.10

Software Write Protection ................................................................3-21

3.3.11

Signal Characterizer ........................................................................3-22

3.3.12

Alarm ................................................................................................3-22

3.3.13

Status Output (only for EJX series: option code AL)

EJX

............3-23

3.3.14

Capillary Fill Fluid Density Compensation ......................................3-24

3.3.15

Test Output, Simulation, and Squawk ..............................................3-25

3.3.16

Burst Mode .......................................................................................3-27
3.3.16.1 In the case of using HART 5 ...........................................3-27
3.3.16.2 In the case of using HART 7 ...........................................3-27

3.3.17

Multidrop Mode ................................................................................3-32
3.3.17.1 Setting on HART 5 ..........................................................3-32
3.3.17.2 Setting on HART 7 ..........................................................3-33

3.3.18

Switching HART Protocol Revision .................................................3-33

4.

Diagnostics ............................................................................................... 4-1

4.1

Self-Diagnostics ................................................................................................4-1
4.1.1

Identify Problems by Using HART Configuration Tool .......................4-1

4.1.2

Checking with Integral Indicator .........................................................4-2

4.1.3

Status information available for HART 7

HART 7

............................4-2

4.2

Advanced Diagnostics (Only for EJX series)

EJX

.....................................4-3

4.2.1

Multi-sensing Process Monitoring ......................................................4-3

4.2.2

Impulse Line Blockage Detection (ILBD) ...........................................4-3
4.2.2.1 Blockage Detection ...........................................................4-6
4.2.2.2 Combination of Reference Result and Blockage Detection

..........................................................................................4-8

4.2.2.3 Operation Parameters ......................................................4-9
4.2.2.4 Operating Procedure ...................................................... 4-11
4.2.2.5 Alarm and Alert Setting ...................................................4-12
4.2.2.6 Condition Check .............................................................4-14
4.2.2.7 Obtain Reference Values ................................................4-15
4.2.2.8 Capability Test of Blockage Detection Operation ...........4-16
4.2.2.9 Start ILBD Operation ......................................................4-16
4.2.2.10 Tuning .............................................................................4-17
4.2.2.11 Reset of Reference Value ...............................................4-18
4.2.2.12 ILBD Parameter List .......................................................4-19

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