YOKOGAWA Dpharp EJX110A Manuel utilisateur

User’s

Manual EJX110A, EJX120A, EJX130A,

EJX310A, EJX430A, and EJX440A

Differential Pressure and

Pressure Transmitters

IM 01C25B01-01E

10th Edition

IM 01C25B01-01E

EJX110A, EJX120A, EJX130A,

EJX310A, EJX430A, and EJX440A

Differential Pressure and Pressure Transmitters

IM 01C25B01-01E 10th Edition

10th Edition:Apr. 2010 (YK)

Contents

1. Introduction...............................................................................................1-1

Regarding This Manual................................................................................................1-1

1.1 Safe Use of This Product .................................................................................1-2

1.2 Warranty.............................................................................................................1-3

1.3 ATEX Documentation.......................................................................................1-4

2. Handling Cautions....................................................................................2-1

2.1 ModelandSpecicationsCheck.....................................................................2-1

2.2 Unpacking..........................................................................................................2-1

2.3 Storage...............................................................................................................2-1

2.4 Selecting the Installation Location ................................................................2-2

2.5 Pressure Connection........................................................................................2-2

2.6 WaterproongofCableConduitConnections ..............................................2-2

2.7 Restrictions on Use of Radio Transceivers...................................................2-2

2.8 Insulation Resistance and Dielectric Strength Test......................................2-2

2.9 Installation of an Explosion-Protected Instrument.......................................2-3

2.9.1 FMApproval.......................................................................................2-3

2.9.2 CSACertication................................................................................2-5

2.9.3 CENELECATEX(KEMA)Certication..............................................2-7

2.9.4 IECExCertication...........................................................................2-10

2.10 EMC Conformity Standards...........................................................................2-11

2.11 Pressure Equipment Directive (PED) ...........................................................2-11

2.12 Low Voltage Directive.....................................................................................2-12

3. Component Names ..................................................................................3-1

4. Installation.................................................................................................4-1

4.1 Precautions .......................................................................................................4-1

4.2 Mounting ...........................................................................................................4-1

4.3 Changing the Process Connection.................................................................4-2

4.4 Swapping the High/Low-pressure Side Connection.....................................4-3

4.4.1 Rotating Pressure-detector Section 180° .........................................4-3

4.4.2 Using the Communicator...................................................................4-3

4.5 Rotating Transmitter Section...........................................................................4-4

4.6 Changing the Direction of Integral Indicator .................................................4-4

IM 01C25B01-01E

5. Installing Impulse Piping.........................................................................5-1

5.1 Impulse Piping Installation Precautions........................................................5-1

5.1.1 Connecting Impulse Piping to aTransmitter......................................5-1

5.1.2 Routing the Impulse Piping................................................................5-3

5.2 Impulse Piping Connection Examples...........................................................5-4

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Conguration ............................................................................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 PointAdjustment .....................................................................................7-2

7.2.1 Adjusting Zero Point for Differential PressureTransmitters ..............7-3

7.2.2 Adjusting Zero Point for Gauge/Absolute PressureTransmitters ....7-3

7.3 Starting Operation ............................................................................................7-3

7.4 Shutting Down the Transmitter .......................................................................7-4

7.5 Venting or Draining Transmitter Pressure-detector Section .......................7-4

7.5.1 Draining Condensate.........................................................................7-4

7.5.2 Venting Gas........................................................................................7-5

7.6 Setting the Range Using the Range-setting Switch......................................7-5

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

8.4.3 Cleaning and Replacing the CapsuleAssembly ...............................8-4

8.4.4 Replacing the Process Connector Gaskets.......................................8-6

iii

IM 01C25B01-01E

8.5 Troubleshooting................................................................................................8-6

8.5.1 Basic Troubleshooting .......................................................................8-6

8.5.2 Troubleshooting Flowcharts...............................................................8-7

8.5.3 Alarms and Countermeasures...........................................................8-9

9. GeneralSpecications ............................................................................9-1

9.1 StandardSpecications...................................................................................9-1

9.2 ModelandSufxCodes ...................................................................................9-5

9.3 OptionalSpecications.................................................................................9-12

9.4 Dimensions......................................................................................................9-15

Revision Information

When using the EJX in a Safety Instrumented Systems(SIS) application,

refer toAppendixAin either IM 01C25T01-01E for the HART protocol or

IM 01C25T03-01E for the BRAIN protocol.

<1. Introduction> 1-1

IM 01C25B01-01E

1. Introduction

Thank you for purchasing the DPharp EJX

Differential Pressure and pressure transmitter.

Your EJX Pressure Transmitter was precisely

calibrated at the factory before shipment. To ensure

bothsafetyandefciency,pleasereadthismanual

carefully before you operate the instrument.

NOTE

This manual describes the hardware

congurationsofEJXseriestransmitters.For

informationonthesoftwarecongurationand

operation, please refer to either

IM 01C25T03-01E for the EJX series BRAIN

communication type or IM 01C25T01-01E for the

EJX series HART communication type.

For FOUNDATION Fieldbus protocol type,

please refer to IM 01C25T02-01E.

To ensure correct use of this instrument, read

both the hardware and software manuals

thoroughly before use.

WARNING

When using the EJX in a Safety Instrumented

Systems (SIS) application, refer toAppendixAin

either IM 01C25T01-01E for the HART protocol

or IM 01C25T03-01E for the BRAIN protocol.

The instructions and procedures in this section

must be strictly followed in order to maintain the

transmitter for this safety level.

NOTE

This manual covers the EJX110A, EJX120A

and EJX130Adifferential pressure transmitter,

EJX430Aand EJX440Agauge pressure

transmitter and EJX310Aabsolute pressure

transmitter whose style codes are as described

in the following table.

Unless otherwise stated, the illustrations in

this manual are of the EJX110Adifferential

pressure transmitter. Users of the other models

should bear in mind that certain features of their

instrument will differ from those shown in the

illustrations of the EJX110A.

Model Style code

EJX110A S3

EJX120A S1

EJX130A S2

EJX310A S2

EJX430A S2

EJX440A S2

Regarding This Manual

• This manual should be provided to the end

user.

• The contents of this manual are subject to

change without prior notice.

be reproduced in any form withoutYokogawa’s

written permission.

• Yokogawa makes no warranty of any kind with

regard to this manual, including, but not limited

to, implied warranty of merchantability and

tnessforaparticularpurpose.

• If any question arises or errors are found, or if

any information is missing from this manual,

please inform the nearest Yokogawa sales

ofce.

• Thespecicationscoveredbythismanualare

limited to those for the standard type under the

speciedmodelnumberbreak-downanddonot

cover custom-made instruments.

• Pleasenotethatchangesinthespecications,

construction, or component parts of the

instrumentmaynotimmediatelybereected

in this manual at the time of change, provided

that postponement of revisions will not cause

difcultytotheuserfromafunctionalor

performance standpoint.

• Yokogawa assumes no responsibilities for this

product except as stated in the warranty.

• If the customer or any third party is harmed by

the use of this product,Yokogawa assumes

no responsibility for any such harm owing to

any defects in the product which were not

predictable, or for any indirect damages.

• The following safety symbols are used in this

manual:

<1. Introduction> 1-2

IM 01C25B01-01E

WARNING

Indicates a potentially hazardous situation which,

if not avoided, could result in death or serious

injury.

CAUTION

Indicates a potentially hazardous situation which,

if not avoided, may result in minor or moderate

injury. It may also be used to alert against unsafe

practices.

IMPORTANT

Indicates that operating the hardware or software

in this manner may damage it or lead to system

failure.

NOTE

Draws attention to information essential for

understanding the operation and features.

Direct current

1.1 Safe Use of This Product

For the safety of the operator and to protect the

instrument and the system, please be sure to follow

this manual’s safety instructions when handling this

instrument. If these instructions are not heeded,

the protection provided by this instrument may be

impaired. In this case, Yokogawa cannot guarantee

that the instrument can be safely operated. Please

pay special attention to the following points:

(a) Installation

• This instrument may only be installed by an

engineer or technician who has an expert

knowledge of this device. Operators are not

allowed to carry out installation unless they

meet this condition.

• With high process temperatures, care must

be taken not to burn yourself by touching the

instrument or its casing.

• Never loosen the process connector nuts when

the instrument is installed in a process.This can

lead to a sudden, explosive release of process

uids.

• When draining condensate from the pressure

detector section, take appropriate precautions

to prevent the inhalation of harmful vapors and

thecontactoftoxicprocessuidswiththeskin

or eyes.

• When removing the instrument from a

hazardousprocess,avoidcontactwiththeuid

and the interior of the meter.

• All installation shall comply with local installation

requirements and the local electrical code.

(b) Wiring

• The instrument must be installed by an

engineer or technician who has an expert

knowledge of this instrument. Operators are not

permitted to carry out wiring unless they meet

this condition.

• Before connecting the power cables, please

conrmthatthereisnocurrentowingthrough

the cables and that the power supply to the

instrument is switched off.

<1. Introduction> 1-3

IM 01C25B01-01E

• Wait 5 min. after the power is turned off, before

opening the covers.

(d) Maintenance

• Please carry out only the maintenance

procedures described in this manual. If you

require further assistance, please contact the

nearestYokogawaofce.

• Care should be taken to prevent the build up of

dust or other materials on the display glass and

the name plate. To clean these surfaces, use a

soft, dry cloth.

(e) Explosion Protected Type Instrument

• Users of explosion proof instruments should

referrsttosection2.9(Installationofan

Explosion Protected Instrument) of this manual.

• The use of this instrument is restricted to those

who have received appropriate training in the

device.

• Take care not to create sparks when accessing

the instrument or peripheral devices in a

hazardous location.

(f) Modication

• Yokogawa will not be liable for malfunctions or

damageresultingfromanymodicationmade

to this instrument by the customer.

1.2 Warranty

• The warranty shall cover the period noted on

the quotation presented to the purchaser at the

time of purchase. Problems occurring during

the warranty period shall basically be repaired

free of charge.

• If any problems are experienced with this

instrument, the customer should contact the

Yokogawa representative from which this

instrument was purchased or the nearest

Yokogawaofce.

• If a problem arises with this instrument,

please inform us of the nature of the problem

and the circumstances under which it

developed,includingthemodelspecication

and serial number.Any diagrams, data and

other information you can include in your

communication will also be helpful.

• Thepartyresponsibleforthecostofxingthe

problem shall be determined byYokogawa

following an investigation conducted by

Yokogawa.

• The purchaser shall bear the responsibility for

repair costs, even during the warranty period, if

the malfunction is due to:

- Improper and/or inadequate maintenance by

the purchaser.

- Malfunction or damage due to a failure

to handle, use, or store the instrument in

accordancewiththedesignspecications.

- Use of the product in question in a location

notconformingtothestandardsspeciedby

Yokogawa, or due to improper maintenance

of the installation location.

- Failureordamageduetomodicationor

repair by any party exceptYokogawa or an

approved representative ofYokogawa.

- Malfunction or damage from improper

relocation of the product in question after

delivery.

- Reasonofforcemajeuresuchasres,

earthquakes,storms/oods,thunder/

lightening, or other natural disasters, or

disturbances, riots, warfare, or radioactive

contamination.

<1. Introduction> 1-4

IM 01C25B01-01E

1.3 ATEX Documentation

This is only applicable to the countries in European Union.

EST

SLO

<2. Handling Cautions> 2-1

IM 01C25B01-01E

2. Handling Cautions

This chapter provides important information on how

to handle the transmitter. Read this carefully before

using the transmitter.

EJX Series transmitters are thoroughly tested at the

factory before shipment. When taking delivery of an

instrument, visually check them to make sure that

no damage occurred during shipment.

Also check that all transmitter mounting hardware

showningure2.1isincluded.Ifthetransmitter

is ordered without the mounting bracket and the

process connector, the transmitter mounting

hardware will not be included.After checking the

transmitter, carefully repack it in its box and keep it

there until you are ready to install it.

Bolt

Process connector (Note 1)

Process connector

Gasket

U-bolt nut

U-bolt

Mounting bracket

(L type)

Transmitter mounting bolt

Mounting bracket

(Flat type)

F0201.ai

Figure 2.1 Transmitter Mounting Hardware

2.1 ModelandSpecications

Check

Themodelnameandspecicationsarewrittenon

the name plate attached to the case.

F0202.ai

Figure 2.2 Name Plate (EJX110A)

2.2 Unpacking

Keep the transmitter in its original packaging to

prevent it from being damaged during shipment.

Do not unpack the transmitter until it reaches the

installation site.

2.3 Storage

The following precautions must be observed when

storing the instrument, especially for a long period.

(a) Select a storage area which meets the following

conditions:

• It is not exposed to rain or subject to water

seepage/leaks.

• Vibration and shock are kept to a minimum.

• It has an ambient temperature and relative

humidity within the following ranges.

Ambient temperature:

–40* to 85°C without integral indicator

–30* to 80°C with integral indicator

*–15°Cwhen/HEisspecied.

Relative humidity:

0% to 100% R.H.

Preferred temperature and humidity:

approx. 25°C and 65% R.H.

(b) When storing the transmitter, repack it carefully

in the packaging that it was originally shipped

with.

cleanthechambersinsidethecoveranges,so

thatthereisnoprocessuidremaininginside.

Before placing it in storage, also make sure that

the pressure-detector is securely connected to

the transmitter section.

<2. Handling Cautions> 2-2

IM 01C25B01-01E

2.4 Selecting the Installation

Location

The transmitter is designed to withstand severe

environmental conditions. However, to ensure

that it will provide years of stable and accurate

performance, take the following precautions when

selecting the installation location.

(a) AmbientTemperature

Avoid locations subject to wide temperature

variationsorasignicanttemperaturegradient.

If the location is exposed to radiant heat from

plant equipment, provide adequate thermal

insulation and/or ventilation.

(b) AmbientAtmosphere

Do not install the transmitter in a corrosive

atmosphere. If this cannot be avoided, there

must be adequate ventilation as well as

measures to prevent the leaking of rain water

and the presence of standing water in the

conduits.

Although the transmitter is designed to be

relatively resistant to shock and vibration, an

installation site should be selected where this is

kept to a minimum.

(d) Installation of Explosion-protectedTransmitters

An explosion-protected transmitters is

certiedforinstallationinahazardousarea

containingspecicgastypes.Seesubsection

2.9 “Installation of an Explosion-Protected

Transmitters.”

2.5 Pressure Connection

WARNING

• Never loosen the process connector bolts

when an instrument is installed in a process.

The device is under pressure, and a loss of

seal can result in a sudden and uncontrolled

releaseofprocessuid.

• Whendrainingtoxicprocessuidsthathave

condensed inside the pressure detector,

take appropriate steps to prevent the contact

ofsuchuidswiththeskinoreyesandthe

inhalationofvaporsfromtheseuids.

The following precautions must be observed

in order to safely operate the transmitter under

pressure.

(a) Make sure that all the process connector bolts

aretightenedrmly.

(b) Make sure that there are no leaks in the impulse

piping.

speciedmaximumworkingpressure.

2.6 WaterproongofCable

Conduit Connections

Apply a non-hardening sealant to the threads

to waterproof the transmitter cable conduit

connections.(Seegure6.8,6.9and6.10.)

2.7 Restrictions on Use of Radio

Transceivers

IMPORTANT

Although the transmitter has been designed to

resist high frequency electrical noise, if a radio

transceiver is used near the transmitter or its

external wiring, the transmitter may be affected

by high frequency noise pickup.To test this, start

out from a distance of several meters and slowly

approach the transmitter with the transceiver

while observing the measurement loop for noise

effects. Thereafter use the transceiver outside

therangewherethenoiseeffectswererst

observed.

2.8 Insulation Resistance and

Dielectric Strength Test

Since the transmitter has undergone insulation

resistance and dielectric strength tests at the factory

before shipment, normally these tests are not

required. If the need arises to conduct these tests,

heed the following:

(a) Do not perform such tests more frequently than

is absolutely necessary. Even test voltages that

do not cause visible damage to the insulation

may degrade the insulation and reduce safety

margins.

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