Yokogawa EJA115 Manual de usuario descargar pdf (Pagina 2)

CONTENTS

IM 01C22T01-01E

CONTENTS

PRELIMINARY ........................................................................................................ ii

1. ZERO POINT ADJUSTMENT ....................................................................... 1-1

1.1 Zero Point Adjustment ........................................................................ 1-1

1.1.1 Using the HART Communicator................................................... 1-2

1.1.2 Using the Transmitter Zero-adjustment Screw ............................ 1-2

1.2 Auto LRV (Change Low Range Value)............................................... 1-3

1.2.1 Using Model 275 — Apply Values ............................................... 1-3

1.2.2 Setting the Range Using the Range-setting Switch .................... 1-3

2. HART COMMUNICATOR OPERATION ....................................................... 2-1

2.1 Conditions of Communication Line ..................................................... 2-1

2.1.1 Interconnection Between DPharp and HART Communicator...... 2-1

2.1.2 Communication Line Requirements ............................................. 2-1

2.2 Basic Operation of the HART Communicator (Model 275) ................ 2-2

2.2.1 Keys and Functions...................................................................... 2-2

2.2.2 Display .......................................................................................... 2-3

2.2.3 Calling Up Menu Addresses ........................................................ 2-3

2.2.4 Entering, Setting, and Sending Data ........................................... 2-4

2.3 Parameters .......................................................................................... 2-5

2.3.1 Parameter Usage and Selection .................................................. 2-5

2.3.2 Menu Tree .................................................................................... 2-6

2.3.3 Setting Parameters....................................................................... 2-7

(1) Tag No. ........................................................................................ 2-7

(2) Unit.............................................................................................. 2-7

(3) Range Change ............................................................................ 2-7

(4) Output Mode (Linear/Sq root) ..................................................... 2-8

(5) Damping Time Constants............................................................ 2-9

(6) Output Signal Low Cut Mode Setup............................................ 2-9

(7) Bi-directional Flow Measurement.............................................. 2-10

(8) Change Output Limits ............................................................... 2-10

(9) Integral Indicator Display Mode................................................. 2-10

(10) Integral Indicator Scale ............................................................. 2-10

(11) Unit for Displayed Temperature ................................................. 2-12

(12) Unit for Displayed Static Pressure ............................................ 2-12

(13) Test Output................................................................................ 2-13

(14) Sensor Trim ............................................................................... 2-13

(15) Trim Analog Output ................................................................... 2-14

(16) Burst Mode................................................................................ 2-16

(17) Multidrop Mode ......................................................................... 2-17

(18) External Switch Mode ............................................................... 2-17

(19) Software Write Protect .............................................................. 2-18

(20) Hardware Write Protect and Burnout Direction

(with Optional code /F1) ............................................................ 2-19

(21) H

O Unit Select......................................................................... 2-19

2.4 Self-Diagnostics ................................................................................ 2-20

2.4.1 Checking for Problems ............................................................... 2-20

(1) Identify Problems with HART Communicator ............................ 2-20

(2) Checking with Integral Indicator ................................................ 2-21

3. PARAMETER LISTS ..................................................................................... 3-1

REVISION RECORD

FD No. IM 01C22T01-01E

8th Edition: Oct. 2008(YK)

1 2 3 4 5 6 7 ... 30 31

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Yokogawa EJA115 Manual de usuario Pagina 2

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