Yokogawa EJX115A User Manual

User’s Manual

Low Flow Transmitter EJX115A and EJA115E

IM 01C25K01-01E

6th Edition

Low Flow Transmitter EJX115A and EJA115E

IM 01C25K01-01E 6th Edition

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 FM Approval .......................................................................................2-4

2.9.2 CSA Certication ................................................................................2-6

2.9.3 ATEX Certication ..............................................................................2-8

2.9.4 IECEx Certication ........................................................................... 2-11

2.10 EMC Conformity Standards ...........................................................................2-12

2.11 Pressure Equipment Directive (PED) ...........................................................2-13

2.12 Low Voltage Directive .....................................................................................2-13

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

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

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

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

4.3 Changing the manifold assembly ................................................................... 4-2

4.4 Swapping the High/Low-pressure Side Connection ..................................... 4-2

4.5 Rotating Transmitter Section ...........................................................................4-3

4.6 Changing the Direction of Integral Indicator .................................................4-3

IM 01C25K01-01E

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

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

5.1.1 Connecting Process Piping to the Transmitter ..................................5-1

5.1.2 Routing the Process Piping ...............................................................5-1

5.2 Process Piping Connection Examples ........................................................... 5-2

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 Point Adjustment .....................................................................................7-2

7.3 Starting Operation ............................................................................................ 7-2

7.4 Shutting Down Operation ................................................................................7-3

7.5 Transmitter Measurement Range (Determining Differential Pressure Range)

............................................................................................................................. 7-3

7.5.1 Determining the Differential Pressure Range ....................................7-3

7.5.2 Example of Calculation ......................................................................7-4

7.6 Venting or Draining Transmitter Pressure-detector Section ....................... 7-6

7.6.1 Draining Condensate ......................................................................... 7-6

7.6.2 Venting Gas........................................................................................7-6

7.7 Setting the Range Using the Range-setting Switch ......................................7-6

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 Board Assembly .................................................8-4

8.4.3 Replacing the Process Connector Gaskets .......................................8-4

8.4.4 Cleaning Manifold Assembly and Replacing Orice ..........................8-4

8.4.5 Cleaning and Replacing the Capsule Assembly ............................... 8-5

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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 ...................................................................................9-4

9.3 Optional Specications ...................................................................................9-5

9.4 Dimensions ........................................................................................................ 9-7

[Measurement span code M and H] ....................................................................9-7

[Measurement span code F] ...............................................................................9-8

Revision Information

iii

When using the Transmitters in a Safety Instrumented Systems(SIS) application, refer to Appendix A in either IM 01C25T01-06EN for the HART protocol or IM 01C25T03-01E for the BRAIN protocol.

IM 01C25K01-01E

<1. Introduction>

1. Introduction

1-1

Thank you for purchasing the DPharp Low ow transmitter.

Your 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 the transmitters listed in below. For information on the software conguration and operation, please refer to either IM 01C25T03-01E for the BRAIN communication type, or IM 01C25T01-06EN for the HART communication type.

For FOUNDATION Fieldbus protocol type, please refer to IM 01C25T02-01E. For PROFIBUS PA protocol type, please refer to IM 01C25T04-01EN.

Model Style code

EJX115A S1 EJA115E S1

To ensure correct use of this instrument, read both the hardware and software manuals thoroughly before use.

WARNING

When using the transmitters in a Safety Instrumented Systems (SIS) application, refer to Appendix 1 in either IM 01C25T01-06EN 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.

 Regarding This Manual

• This manual should be provided to the end user.

• The contents of this manual are subject to change without prior notice.

• 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:

NOTE

When describing the model name as EJ115, it shows the applicability for both EJX115A and EJA115E.

IM 01C25K01-01E

<1. Introduction>

1-2

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.

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<1. Introduction>

1-3

• 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

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 by Yokogawa 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:

• Yokogawa will not be liable for malfunctions or damage resulting from any modication made to this instrument by the customer.

- 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 except Yokogawa or an approved representative of Yokogawa.

- 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.

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<1. Introduction>

1.3 ATEX Documentation

This is only applicable to the countries in European Union.

1-4

EST

SLO

IM 01C25K01-01E

<2. Handling Cautions>

2. Handling Cautions

2-1

This chapter provides important information on how to handle the transmitter. Read this carefully before using the transmitter.

The 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.

U-bolt

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

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

Mounting bracket (L type)

U-bolt nut

Mounting bracket (Flat type)

Figure 2.1 Transmitter Mounting Hardware

Transmitter mounting bolt

U-bolt

F0201.ai

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 and integral ow orice unit, 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.

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<2. Handling Cautions>

2-2

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) Ambient Temperature

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) Ambient Atmosphere

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-protected Transmitters

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.”

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.

2.5 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.

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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<2. Handling Cautions>

2-3

(b) Never apply a voltage exceeding 500 V DC

(100 V DC with an internal lightning protector) for the insulation resistance test, nor a voltage exceeding 500 V AC (100 V AC with an internal lightning protector) for the dielectric strength test.

all signal lines from the transmitter terminals. The procedure for conducting these tests is as follows:

• Insulation Resistance Test

1) Short-circuit the + and – SUPPLY terminals in the terminal box.

2) Turn OFF the insulation tester. Then connect the insulation tester plus (+) lead wire to the shorted SUPPLY terminals and the minus (–) leadwire to the grounding terminal.

3) Turn ON the insulation tester power and measure the insulation resistance. The voltage should be applied as briey as possible to verify that the insulation resistance is at least 20 MΩ.

4) After completing the test and being very careful not to touch exposed conductors disconnect the insulation tester and connect a 100 kΩ resistor between the grounding terminal and the shortcircuiting SUPPLY terminals. Leave this resistor connected at least one second to discharge any static potential. Do not touch the terminals while it is discharging.

2.9 Installation of an ExplosionProtected Instrument

NOTE

For FOUNDATION Fieldbus explosion protected type, please refer to IM 01C22T02-01E. For PROFIBUS PA explosion protected type, please refer to IM 01C25T04-01EN.

If a customer makes a repair or modication to an intrinsically safe or explosionproof instrument and the instrument is not restored to its original condition, its intrinsically safe or explosionproof construction may be compromised and the instrument may be hazardous to operate. Please contact Yokogawa before making any repair or modication to an instrument.

CAUTION

This instrument has been tested and certied as being intrinsically safe or explosionproof. Please note that severe restrictions apply to this instrument’s construction, installation, external wiring, maintenance and repair. A failure to abide by these restrictions could make the instrument a hazard to operate.

• Dielectric Strength Test

1) Short-circuit the + and – SUPPLY terminals in the terminal box.

2) Turn OFF the dielectric strength tester. Then connect the tester between the shorted SUPPLY terminals and the grounding terminal. Be sure to connect the grounding lead of the dielectric strength tester to the ground terminal.

3) Set the current limit on the dielectric strength tester to 10 mA, then turn ON the power and gradually increase the test voltage from ‘0’ to the specied voltage.

4) When the specied voltage is reached, hold it for one minute.

5) After completing this test, slowly decrease the voltage to avoid any voltage surges.

WARNING

Maintaining the safety of explosionproof equipment requires great care during mounting, wiring, and piping. Safety requirements also place restrictions on maintenance and repair. Please read the following sections very carefully.

WARNING

The range setting switch must not be used in a hazardous area.

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<2. Handling Cautions>

2-4

IMPORTANT

For combined approval types Once a device of multiple approval type is installed, it should not be re-installed using any other approval types. Apply a permanent mark in the check box of the selected approval type on the certication label on the transmitter to distinguish it from unused approval types.

IMPORTANT

All the blind plugs which accompany the EJX/ EJA-E transmitters upon shipment from the factory are certied by the applicable agency in combination with those transmitters. The plugs which are marked with the symbols “◊ Ex” on their surfaces are certied only in combination with the EJX/EJA-E transmitters.

2.9.1 FM Approval

Note 2. Entity Parameters

• Intrinsically Safe Apparatus Parameters [Groups A, B, C, D, E, F and G]

Vmax = 30 V Ci = 6 nF Imax = 200 mA Li = 0 µH Pmax = 1 W

* Associated Apparatus Parameters (FM approved barriers)

Voc ≤ 30 V Ca > 6 nF Isc ≤ 200 mA La > 0 µH Pmax ≤ 1W

• Intrinsically Safe Apparatus Parameters [Groups C, D, E, F and G]

Vmax = 30 V Ci = 6 nF Imax = 225 mA Li = 0 µH Pmax = 1 W

* Associated Apparatus Parameters (FM approved barriers)

Voc ≤ 30 V Ca > 6 nF Isc ≤ 225 mA La > 0 µH Pmax ≤ 1 W

a. FM Intrinsically Safe Type

Caution for FM intrinsically safe type. (Following contents refer “DOC. No. IFM022-A12”)

Note 1. Model EJX/EJA-E Series Differential,

gauge and absolute pressure transmitters with optional code /FS1 are applicable for use in hazardous locations.

• Applicable Standard: FM3600, FM3610,

FM3611, FM3810

• Intrinsically Safe for Class I, Division 1,

Groups A, B, C & D. Class II, Division 1, Groups E, F & G and Class III, Division 1, Class I, Zone 0 in Hazardous Locations, AEx ia IIC

• Nonincendive for Class I, Division 2, Groups

A, B, C & D. Class II, Division 2, Groups F & G, Class I, Zone 2, Groups IIC, in Hazardous Locations.

• Outdoor hazardous locations, NEMA TYPE

4X.

• Temperature Class: T4

• Ambient temperature: –60 to 60°C

• Entity Installation Requirements Vmax ≥ Voc or Uo or Vt, Imax ≥ Isc or Io or It, Pmax (or Po) ≤ Pi, Ca or Co ≥ Ci + Ccable, La or Lo ≥ Li + Lcable

Note 3. Installation

• Barrier must be installed in an enclosure that meets the requirements of ANSI/ISA S82.01.

• Control equipment connected to barrier must not use or generate more than 250 V rms or V dc.

• Installation should be in accordance with ANSI/ISA RP12.6 “Installation of Intrinsically Safe Systems for Hazardous (Classied) Locations” and the National Electric Code (ANSI/NFPA 70).

• The conguration of associated apparatus must be FMRC Approved.

• Dust-tight conduit seal must be used when installed in a Class II, III, Group E, F and G environments.

• Associated apparatus manufacturer’s installation drawing must be followed when installing this apparatus.

• The maximum power delivered from the barrier must not exceed 1 W.

• Note a warning label worded “SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY,” and “INSTALL IN ACCORDANCE WITH DOC. No. IFM022A12”

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2-5

Note 4. Maintenance and Repair

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Factory Mutual Intrinsically safe and Nonincendive Approval.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

Class I, II, III, Division 1, Groups A, B, C, D, E, F, G Class 1, Zone 0 in Hazardous (Classified) Locations AEx ia IIC

Pressure Transmitters

Supply

Hazardous Location Nonhazardous Location

Class I, II, Division 2, Groups A, B, C, D, F, G Class 1, Zone 2, Group IIC, in Hazardous (Classified) Locations

Pressure Transmitters

Supply

–

[Nonincendive]

+ –

Safety Barrier

–

Not Use Safety Barrier

b. FM Explosionproof Type

Caution for FM explosionproof type.

Note 1. Model EJX/EJA-E Series pressure

transmitters with optional code /FF1 are applicable for use in hazardous locations.

• Applicable Standard: FM3600, FM3615, FM3810, ANSI/NEMA 250

• Explosionproof for Class I, Division 1, Groups B, C and D.

• Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G.

• Enclosure rating: NEMA TYPE 4X.

• Temperature Class: T6

• Ambient Temperature: –40 to 60°C

• Supply Voltage: 42 V dc max.

• Output signal: 4 to 20 mA

General Purpose Equipment

+ –

F0203-1.ai

General Purpose Equipment

+ –

F0203-2.ai

Note 2. Wiring

• All wiring shall comply with National Electrical Code ANSI/NFPA70 and Local Electrical Codes.

• When installed in Division 1, “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.”

Note 3. Operation

• Keep the “WARNING” nameplate attached to the transmitter.

WARNING: OPEN CIRCUIT BEFORE

REMOVING COVER. FACTORY SEALED, CONDUIT SEAL NOT REQUIRED. INSTALL IN ACCORDANCE WITH THE USERS MANUAL IM 01C25.

• Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location.

Note 4. Maintenance and Repair

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Factory Mutual Explosionproof Approval.

c. FM Intrinsically Safe Type/FM

Explosionproof Type

Model EJX/EJA-E Series pressure transmitters with optional code /FU1 or /V1U1 can be selected the type of protection (FM Intrinsically Safe or FM Explosionproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,

once a particular type of protection is selected, any other type of protection cannot be used. The installation must be in accordance with the description about the type of protection in this instruction manual.

Note 2. In order to avoid confusion, unnecessary

marking is crossed out on the label other than the selected type of protection when the transmitter is installed.

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2.9.2 CSA Certication

a. CSA Intrinsically Safe Type

Caution for CSA Intrinsically safe and nonincendive type. (Following contents refer to “DOC No. ICS013-A13”)

Note 1. Model EJX/EJA-E Series differential,

gauge, and absolute pressure transmitters with optional code /CS1 are applicable for

use in hazardous locations Certicate: 1606623 [For CSA C22.2]

• Applicable Standard: C22.2 No.0, C22.2

No.0.4, C22.2 No.25, C22.2 No.94, C22.2 No.157, C22.2 No.213, C22.2 No.61010-1, C22.2 No.60079-0

• Intrinsically Safe for Class I, Division 1,

Groups A, B, C & D, Class II, Division 1, Groups E, F & G, Class III, Division 1

• Nonincendive for Class I, Division 2, Groups

A, B, C & D, Class II, Division 2, Groups E, F & G, Class III, Division 1

• Enclosure: NEMA TYPE 4X

• Temp. Code: T4

• Amb. Temp.: –50* to 60°C

* –15°C when /HE is specied.

• Process Temperature: 120°C max. [For CSA E60079]

• Applicable Standard: CAN/CSA E60079-11,

CAN/CSA E60079-15, IEC 60529:2001

• Ex ia IIC T4, Ex nL IIC T4

• Ambient Temperature: –50* to 60°C

* –15°C when /HE is specied.

• Max. Process Temp.: 120°C

• Enclosure: IP66/IP67

Note 2. Entity Parameters

• Intrinsically safe ratings are as follows: Maximum Input Voltage (Vmax/Ui) = 30 V Maximum Input Current (Imax/Ii) = 200 mA Maximum Input Power (Pmax/Pi) = 0.9 W Maximum Internal Capacitance (Ci) = 10 nF Maximum Internal Inductance (Li) = 0 µH

• Type "n" or Nonincendive ratings are as

follows: Maximum Input Voltage (Vmax/Ui) = 30 V Maximum Internal Capacitance (Ci) = 10 nF Maximum Internal Inductance (Li) = 0 µH

• Installation Requirements Uo ≤ Ui, Io ≤ Ii, Po ≤ Pi, Co ≥ Ci + Ccable, Lo ≥ Li + Lcable Voc ≤ Vmax, Isc ≤ Imax, Ca ≥ Ci + Ccable, La ≥ Li + Lcable Uo, Io, Po, Co, Lo, Voc, Isc, Ca and La are

parameters of barrier.

Note 3. Installation

• In any safety barreir used output current must be limited by a resistor 'R' such that Io=Uo/R or Isc=Voc/R.

• The safety barrier must be CSA certied.

• Input voltage of the safety barrier must be less than 250 Vrms/Vdc.

• Installation should be in accordance with Canadian Electrical Code Part I and Local Electrical Code.

• Dust-tight conduit seal must be used when installed in Class II and III environments.

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric Corporation and Yokogawa Corporation of America is prohibited and will void Canadian Standards Intrinsically safe and nonincendive Certication.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

Group IIC, Zone 0 Class I, II, III, Division 1, Groups A, B, C, D, E, F, G

Pressure Transmitters

Supply

Hazardous Location Nonhazardous Location

Group IIC, Zone 2 Class I, II, Division 2, Groups A, B, C, D, F, G Class III, Division 1.

Pressure Transmitters

Supply

–

[Nonincendive]

+ –

Safety Barrier

–

Not Use Safety Barrier

CSA Certified Equipment ([nL] or nonincendive)

b. CSA Explosionproof Type

Caution for CSA explosionproof type.

Note 1. Model EJX/EJA-E Series pressure

transmitters with optional code /CF1 are applicable for use in hazardous locations:

• Certicate: 2014354

• Applicable Standard: C22.2 No.0, C22.2 No.0.4, C22.2 No.0.5, C22.2 No.25, C22.2 No.30, C22.2 No.94, C22.2 No.61010-1, C22.2 No.60079-0, C22.2 No.60079-1

General Purpose Equipment

+ –

F0204-1.ai

+ –

F0204-2.ai

IM 01C25K01-01E

<2. Handling Cautions>

2-7

• Explosion-proof for Class I, Groups B, C and D.

• Dustignition-proof for Class II/III, Groups E, F and G.

• Enclosure: NEMA TYPE 4X

• Temperature Code: T6...T4

• Ex d IIC T6...T4

• Enclosure: IP66/IP67

• Maximum Process Temperature: 120°C (T4), 100°C (T5), 85°C (T6)

• Ambient Temperature: –50* to 75°C (T4), –50* to 80°C (T5), –50* to 75°C (T6)

* –15°C when /HE is specied.

• Supply Voltage: 42 V dc max.

• Output Signal: 4 to 20 mA dc

Note 2. Wiring

• All wiring shall comply with Canadian Electrical Code Part I and Local Electrical Codes.

• In hazardous location, wiring shall be in conduit as shown in the gure.

• WARNING:

A SEAL SHALL BE INSTALLED WITHIN

50cm OF THE ENCLOSURE.

UN SCELLEMENT DOIT ÊTRE INSTALLÉ À

MOINS DE 50cm DU BOÎTIER.

• WARNING:

WHEN INSTALLED IN CL.I, DIV 2, SEAL

NOT REQUIRED.

UNE FOIS INSTALLÉ DANS CL I, DIV 2,

AUCUN JOINT N'EST REQUIS.

Non-Hazardous

Locations

Non-hazardous Location Equipment

42 V DC Max. 4 to 20 mA DC Signal

Non-Hazardous

Locations

Non-hazardous Location Equipment

42 V DC Max. 4 to 20 mA DC Signal

Hazardous Locations Division 1

50 cm Max.

Sealing Fitting

Hazardous Locations Division 2

Sealing Fitting

Conduit

Transmitter

PULSE

SUPPLY

CHECK ALARM

F0205-1.ai

PULSE

SUPPLY

CHECK ALARM

F0205-2.ai

• All wiring shall comply with local installation requirements and local electrical code.

• In hazardous locations, the cable entry devices shall be of a certied ameproof type, suitable for the conditions of use and correctly installed.

• Unused apertures shall be closed with suitable ameproof certied blanking elements. (The plug attached is ameproof certied.)

Note 3. Operation

• WARNING:

AFTER DE-ENERGIZING, DELAY 5

MINUTES BEFORE OPENING.

APRÉS POWER-OFF, ATTENDRE 5

MINUTES AVANT D'OUVRIR.

• WARNING:

WHEN AMBIENT TEMPERATURE ≥ 65°C,

USE THE HEAT-RESISTING CABLES ≥ 90°C.

QUAND LA TEMPÉRATURE AMBIANTE

≥ 65°C, UTILISEZ DES CÂBLES RÉSISTANTES Á LA CHALEUR ≥ 90°C.

• Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location.

Note 4. Maintenance and Repair

c CSA Intrinsically Safe Type/CSA

Explosionproof Type

Model EJX/EJA-E Series pressure transmitters with optional code /CU1 or /V1U1 can be selected the type of protection (CSA Intrinsically Safe or CSA Explosionproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,

Note 2. In order to avoid confusion, unnecessary

marking is crossed out on the label other than the selected type of protection when the transmitter is installed.

IM 01C25K01-01E

<2. Handling Cautions>

2-8

2.9.3 ATEX Certication

(1) Technical Data

a. ATEX Intrinsically Safe Ex ia

Caution for ATEX Intrinsically safe type.

Note 1. Model EJX/EJA-E Series pressure

transmitters with optional code /KS21 for potentially explosive atmospheres:

• No. DEKRA 11ATEX0228 X

• Applicable Standard: EN 60079-0:2009, EN 60079-11:2007, EN 60079-26:2007, EN 61241-11:2006

• Type of Protection and Marking code: Ex ia IIC T4 Ga

Ex ia IIIC T85 ºC T100 ºC T120 ºC Db

• Group: II

• Category: 1G, 2D

• Ambient Temperature for EPL Ga: –50 to 60°C

• Ambient Temperature for EPL Db: –30* to 60°C

* –15°C when /HE is specied.

• Process Temperature (Tp.): 120°C max.

• Maximum Surface Temperature for EPL Db: T85°C (Tp.: 80°C) T100°C (Tp.: 100°C) T120°C (Tp.: 120°C)

• Enclosure: IP66 / IP67

Note 2 Electrical Data

• In type of explosion protection intrinsic safety Ex ia IIC or Ex ia IIIC, only for connection to a certied intrinsically safe circuit with following maximum values:

Ui = 30 V Ii = 200 mA Pi = 0.9 W (Linear Source) Maximum internal capacitance; Ci = 27.6 nF Maximum internal inductance; Li = 0 µH

Note 3. Installation

• Refer to the control drawing. All wiring shall comply with local installation requirements.

[Control Drawing]

Hazardous Location

Transmitter

Supply

–

*1: In any safety barriers used the output current must be

limited by a resistor “R” such that Io=Uz/R.

Nonhazardous Location

Safety Barrier *

–

F0206.ai

Note 4. Maintenance and Repair

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void DEKRA Intrinsically safe Certication.

Note 5. Special Conditions for Safe Use

WARNING

• In the case where the enclosure of the Pressure Transmitter is made of aluminium, if it is mounted in an area where the use of category 1 G apparatus is required, it must be installed such, that, even in the event of rare incidents, ignition sources due to impact and friction sparks are excluded.

• Electrostatic charge may cause an exlosion hazard. Avoid any actions that cause the gerenation of eletrostatic charge, such as rubbing with a dry cloth on coating face of the product.

• In case of the enclosure of the Pressure Transmitter with paint layers, if it is mounted in an area where the use of category 2D apparatus is required, it shall be installed in such a way that the risk from electrostatic discharges and propagating brush discharges caused by rapid ow of dust is avoided.

• To satisfy IP66 or IP67, apply waterproof glands to the electrical connection port.

• When the lightning protector option is specied, the apparatus is not capable of withstanding the 500V insulation test required by EN60079-11. This must be taken into account when installing the apparatus.

IM 01C25K01-01E

<2. Handling Cautions>

2-9

b. ATEX Flameproof Type

Caution for ATEX ameproof type.

Note 1. Model EJX/EJA-E Series pressure

transmitters with optional code /KF22 for potentially explosive atmospheres:

• No. KEMA 07ATEX0109 X

• Applicable Standard: EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2009

• Type of Protection and Marking Code:

Ex d IIC T6...T4 Gb, Ex tb IIIC T85°C Db

• Group: II

• Category: 2G, 2D

• Enclosure: IP66/IP67

• Temperature Class for gas-poof: T6, T5, and T4

• Ambient Temperature for gas-proof: –50 to 75°C (T6), –50 to 80°C (T5), and –50 to 75°C (T4)

• Maximum Process Temperature (Tp.) for gas-proof:

85°C (T6), 100°C (T5), and 120°C (T4)

• Maximum Surface Temperature for dustproof: T85°C (Tamb.: –30* to 75°C, Tp.: 85°C)

* –15°C when /HE is specied.

Note 5. Special Conditions for Safe Use

WARNING

• Electrostatic charge may cause an exlosion hazard. Avoid any actions that cause the gerenation of eletrostatic charge, such as rubbing with a dry cloth on coating face of the product.

• In the case where the enclosure of the Pressure Transmitter is made of aluminium, if it is mounted in an area where the use of category 2D apparatus is required, it shall be installed in such a way that the risk from electrostatic discharges and propagating brush discharges caused by rapid ow of dust is avoided.

• The instrument modication or parts replacement by other than an authorized Representative of Yokogawa Electric Corporation is prohibited and will void the certication.

• To satisfy IP66 or IP67, apply waterproof glands to the electrical connection port.

Note 2. Electrical Data

• Supply voltage: 42 V dc max.

• Output signal: 4 to 20 mA

Note 3. Installation

• All wiring shall comply with local installation requirement.

• The cable entry devices shall be of a certied ameproof type, suitable for the conditions of use.

Note 4. Operation

• Keep the “WARNING” label attached to the transmitter.

WARNING: AFTER DE-ENERGIZING,

DELAY 5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP.≥65°C, USE HEAT-RESISTING CABLE AND CABLE GLAND ≥90°C.

• Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location.

c. ATEX Intrinsically Safe Type/ATEX

Flameproof Type

Model EJX/EJA-E Series pressure transmitters with optional code /KU22 or /V1U1 can be selected the type of protection ATEX Flameproof, Intrinsically Safe. Ex ia, or Ex ic for use in hazardous area.

Note 1. For the installation of this transmitter,

Note 2. For combined approval types Once a

device of multiple approval type is installed, it should not be re-installed using any other approval types. Apply a permanent mark in the check box of the selected approval type on the certication label on the transmitter to distinguish it from unused approval types.

IM 01C25K01-01E

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