Yokogawa EJX115A User Manual

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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

IM 01C25K01-01E

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

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.

IM 01C25K01-01E

<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. Handling Cautions>

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

<2. Handling Cautions>

● ATEX Intrinsically Safe Ex ic

Caution for ATEX intrinsically safe Ex ic

• Applicable Standard: EN 60079-0:2009/EN 60079-0:2012, EN 60079-11:2012

• Type of Protection and Marking Code:

II 3G Ex ic IIC T4 Gc

• Ambient Temperature: –30* to +60°C

* –15°C when /HE is specied.

• Ambient Humidity: 0 to 100% (No condensation)

• Maximum Process Temperature: 120°C

• IP Code: IP66

WARNING

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

• Ambient pollution degree: 2

• Overvoltage category: I

Note 1. Electrical Data

Ui = 30 V Ci = 27.6 nF Li = 0 µH

(2) Electrical Connection

A mark indicating the electrical connection type is stamped near the electrical connection port. These marks are as followed.

Screw Size Marking

Note 2. Installation

• All wiring shall comply with local installation requirements. (refer to the control drawing)

ISO M20 × 1.5 female

ANSI 1/2 NPT female

• Cable glands, adapters and/or blanking elements shall be of Ex “n”, Ex “e” or Ex “d” and shall be installed so as to maintain the specied degree of protection (IP Code) of the transmitters.

Location of the mark

Note 3. Maintenance and Repair

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric

(3) Installation

Corporation is prohibited and will void ATEX intrinsically safe.

[Control drawing]

Hazardous Area

Nonhazardous Area

WARNING

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

Transmitter

–

Associated Apparatus

• There is no need for conduit seal in Division 1 and Division 2 hazardous locations because this product is sealed at the factory.

2-10

N or W

F0208.ai

Note 4. Specic Conditions of Use

F0207.ai

(4) Operation

WARNING

• OPEN CIRCUIT BEFORE REMOVING COVER. INSTALL IN ACCORDANCE WITH THIS USER’S MANUAL

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

IM 01C25K01-01E

<2. Handling Cautions>

2-11

(5) Maintenance and Repair

WARNING

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.

(6) Name Plate

 Name plate

 Tag plate for flameproof type

No. KEMA 07ATEX0109 X Ex d IIC T6...T4 Gb, Ex tb IIIC T85°C Db Enlcosure : IP66/IP67 TEMP. CLASS T6 T5 T4 MAX PROCESS TEMP.(Tp.) 85 100 120 °C Tamb. -50 to 75 80 75 °C T85°C(Tamb.:-30(-15) to 75°C, Tp.:85°C)(for Dust)

WARNING

 Tag plate for intrinsically safe type

AFTER DE-ENERGIZING, DELAY 5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP. ≥ 65°C, USE THE HEAT-RESISTING CABLE & CABLE GLAND ≥ 90°C POTENTIAL ELECTROSTATIC CHARGING HAZARD

No. DEKRA 11ATEX 0228 X Ex ia IIC T4 Ga Ta: -50 TO 60°C Ex ia IIIC T85°C T100°C T120°C Db Ta:-30(-15) TO 60°C IP66/IP67 MAX. PROCESS TEMP.(Tp.) 120°C T85°C(Tp.:80°C), T100°C(Tp.:100°C), T120°C(Tp.:120°C) Ui=30V, Ii=200mA , Pi=0.9W, Ci=27.6nF, Li=0µH

*1: The rst digit in the three numbers next to the nine

letters of the serial number appearing after “NO.” on the nameplate indicates the year of production. The following is an example of a serial number for a product that was produced in 2010:

91K819857 032

The year 2010

*2: “180-8750” is a zip code which represents the

following address.

2-9-32 Nakacho, Musashino-shi, Tokyo Japan

*3: The identication number of Notied Body.

2.9.4 IECEx Certication

Model EJX Series pressure transmitters with optional code /SU2 can be selected the type of protection (IECEx Intrinsically Safe/type n or ameproof) 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.

a. IECEx Intrinsically Safe Type / type n

Caution for IECEx Intrinsically safe and type n.

WARNING

POTENTIAL ELECTROSTATIC CHARGING HAZARD

- SEE USER’S MANUAL

 Tag plate for intrinsically safe Ex ic

Ex ic IIC T4 Gc IP66 Tamb -30(-15) TO 60°C MAX. PROCESS TEMP. 120°C Ui=30V, Ci=27.6nF, Li=0µH

WARNING

POTENTIAL ELECTROSTATIC CHARGING HAZARD

- SEE USER’S MANUAL

MODEL: Specied model code. STYLE: Style code. SUFFIX: Specied sufx code. SUPPLY: Supply voltage. OUTPUT: Output signal. MWP: Maximum working pressure. CAL RNG: Specied calibration range. NO.: Serial number and year of production*1. TOKYO 180-8750 JAPAN: The manufacturer name and the address*2.

F0209.ai

Note 1. Model EJX Series differential, gauge,

and absolute pressure transmitters with optional code /SU2 are applicable for use in hazardous locations

• No. IECEx CSA 05.0005

• Applicable Standard: IEC 60079-0:2000, IEC 60079-11:1999, IEC 60079-15:2001

• Ex ia IIC T4, Ex nL IIC T4

• Ambient Temperature: –50 to 60°C

• Max. Process Temp.: 120°C

• Enclosure: IP66/IP67

Note 2. Entity Parameters

• Type "n" ratings are as follows: Maximum Input Voltage (Vmax/Ui) = 30 V Maximum Internal Capacitance (Ci) = 10 nF Maximum Internal Inductance (Li) = 0 µH

IM 01C25K01-01E

<2. Handling Cautions>

2-12

• 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 barrier used output current must be limited by a resistor 'R' such that Io=Uo/R.

• The safety barrier must be IECEx certied.

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

• The instrument modication or parts replacement by other than authorized representative of Yokogawa Electric Corporation and will void IECEx Intrinsically safe and type n certication.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

Group IIC, Zone 0

[type n]

IECEx certified Safety Barrier

–

Not Use Safety Barrier

IECEx Certified Equipment [nL]

Pressure Transmitters

Supply

Hazardous Location Nonhazardous Location

Group IIC, Zone 2

Pressure Transmitters

Supply

–

+ –

b. IECEx Flameproof Type

Caution for IECEx ameproof type.

General Purpose Equipment

+ –

F0210-1.ai

+ –

F0210-2.ai

• 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)

• Supply Voltage: 42 V dc max.

• Output Signal: 4 to 20 mA dc

Note 2. Wiring

• 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.

Note 3. Operation

• WARNING: AFTER DE-ENERGIZING, DELAY 5 MINUTES BEFORE OPENING.

• WARNING:

WHEN AMBIENT TEMPERATURE ≥ 65°C,

USE THE HEAT-RESISTING CABLES ≥ 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

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

2.10 EMC Conformity Standards

EN61326-1 Class A, Table2 (For use in industrial locations) EN61326-2-3

CAUTION

Note 1. Model EJX/EJA-E Series pressure

transmitters with optional code /SF2 or /SU2 are applicable for use in hazardous locations:

• No. IECEx CSA 07.0008

• Applicable Standard: IEC60079-0:2004, IEC60079-1:2003

• Flameproof for Zone 1, Ex d IIC T6...T4

• Enclosure: IP66/IP67

• This instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument in the industrial environment only.

• To meet EMC regulations, Yokogawa recommends that customers run signal wiring through metal conduits or use shielded twisted-pair cabling when installing EJX/EJA-E series transmitters in a plant.

IM 01C25K01-01E

<2. Handling Cautions>

2-13

2.11 Pressure Equipment Directive (PED)

(1) General

EJX/EJA-E Series pressure transmitters are categorized as piping under the pressure accessories section of directive 97/23/EC, which corresponds to Article 3, Paragraph 3 of PED, denoted as Sound Engineering Practice (SEP).

(2) Technical Data

Article 3, Paragraph 3 of PED, denoted as Sound Engineering Practice (SEP).

(3) Operation

CAUTION

• The temperature and pressure of uid should be maintained at levels that are consistent with normal operating conditions.

• The ambient temperature should be maintained at a level that is consistent with normal operating conditions.

• Please take care to prevent water hammer and the like from inducing excessive pressures in pipes and valves. If phenomena are likely, install a safety valve or take some other appropriate measure to prevent pressure from exceeding PS.

• Take appropriate measures at the device or system level to protect transmitters if they are to be operated near an external heat source.

(2) Installation Category I

"Overvoltage category (Installation category)" describes a number which denes a transient overvoltage condition. It implies the regulation for impulse withstand voltage. " I " applies to electrical equipment which is supplied from the circuit when appropriate transient overvoltage control means (interfaces) are provided.

2.12 Low Voltage Directive

Applicable standard: EN61010-1

(1) Pollution Degree 2

"Pollution degree" describes the degree to which a solid, liquid, or gas which deteriorates dielectric strength or surface resistivity is adhering. " 2 " applies to normal indoor atmosphere. Normally, only non-conductive pollution occurs. Occasionally, however, temporary conductivity caused by condensation must be expected.

IM 01C25K01-01E

<3. Component Names>

3. Component Names

3-1

Vertical impulse piping type

Pressure-detector section

Cover flange

Integral indicator

Mounting screw

Amplifier Cover

(Note 1)

(Note 2)

Slide switch

Range-setting

(Note 1)

switch (See section 7.6)

Transmitter section

Process connection

Process connector

Manifold

Vent plug

Drain plug

CPU assembly

Burnout direction switch

BO H L

WR E D

Terminal box cover

External indicator conduit connection

Process connection

Horizontal impulse piping type

(Note 1)

Conduit connection

Zeroadjustment screw

Process connector

Write protection switch

Burnout direction switch (BO)

Burnout Direction

Switch Position

Burnout Direction

Note 1: See subsection 9.2, “Model and Sufx Codes,” for details. Note 2: Applicable for BRAIN/HART communication type. Set the switches as shown in the gure above to set the burn-out direction

and write protection. The Burnout switch is set to the H side for delivery (unless option code /C1 or /C2 is specied in the order), and the hardware write protection switch is set to E side. The setting of the switches can be conrmed via communication. An external zero adjustment screw can only be disabled by communication. To disable the screw, set a parameter before activating the hardware write protect function. See each communication manual.

H L H L

HIGH LOW

Write Protection

Switch Position

Write Protection

Hardware write protection switch (WR)

H L

E D

(Write enabled)

H L

E D

YES

(Write disabled)

Figure 3.1 Component Names

Table 3.1 Display Symbol

Display Symbol Meaning of Display Symbol

Display mode is ‘square root’. (Display is not lit when ‘linear’ mode.)

The output signal being zero-adjusted is increasing.

The output signal being zero-adjusted is decreasing.

Write protect function is enabled.

IM 01C25K01-01E

F0301.ai

F0302.ai

<4. Installation>

4. Installation

4-1

4.1 Precautions

Before installing the transmitter, read the cautionary notes in section 2.4, “Selecting the Installation Location.” For additional information on the ambient conditions allowed at the installation location, refer to subsection 9.1 “Standard Specications.”

IMPORTANT

• When welding piping during construction, take care not to allow welding currents to ow through the transmitter.

• Do not step on this instrument after installation.

4.2 Mounting

 The transmitter can be mounted on a nominal

50 mm (2-inch) pipe using the mounting bracket supplied, as shown in gure 4.1 and

4.2 The transmitter can be mounted on either a horizontal or a vertical pipe.

 When mounting the bracket on the transmitter,

tighten the (four) bolts that hold the transmitter with a torque of approximately 39 N·m {4kgf·m}.

 The transmitter is shipped with the manifold set

up as per the order specications.

 For correct ow measurement, the ow path

must always be lled with uid; otherwise, measurement accuracy cannot be assured.

 For the vertical impulse piping type, it is

recommended that the manifold be mounted facing up for liquid ow measurement; facing down for gas ow measurement, as shown in Figure 4.2.

Vertical pipe mounting

U-bolt nut

Mounting bracket

Horizontal pipe mounting

Transmitter mounting bolt

U-bolt nut

Mounting bracket

Figure 4.1 Transmitter Mounting

(Horizontal Impulse Piping Type)

Transmitter mounting bolt

50 mm(2-inch) pipe

U-bolt

50 mm(2-inch) pipe

U-bolt

F0401.ai

Figure 4.1 and 4.2 shows the mounting of the transmitter for horizontal piping and vertical piping with using the mounting bracket.

IM 01C25K01-01E

<4. Installation>

4-2

Vertical pipe mounting (Process connector downside)

U-bolt nut

Vertical pipe mounting (Process connector upside)

U-bolt nut

Transmitter mounting bolt

Mounting bracket

U-bolt

50 mm(2-inch) pipe

Mounting bracket

50 mm(2-inch) pipe

U-bolt

Vertical impulse piping type

Process connector

gasket

Drain/vent plug

Horizontal impulse piping type

Bolt

Manifold

Note: For a horizontal impulse

piping type, moving the Manifold Assembly from the front side to the back cannot be made.

Transmitter mounting bolt

Figure 4.2 Transmitter Mounting

(Vertical Impulse Piping Type)

F0402.ai

4.3 Changing the manifold assembly

The transmitter is shipped with the manifold assembly specied at the time of ordering. To change the manifold assembly, the drain (vent) plug must be repositioned.

To reposition a drain (vent) plug, use a wrench to slowly and gently unscrew it. Then, remove and remount it on the opposite side. Wrap sealing tape around the drain (vent) plug threads (*1 in the gure below), and apply a lubricant to the threads of the drain (vent) screw(s) (*2 below). To tighten the drain (vent) plugs, apply a torque of 34 to 39 N·m {3.5 to 4 kgf·m}. Manifold bolts are to be tightened uniformly to a torque of 39 to 49 N·m {4 to 5 kgf·m}.

F0403.ai

Figure 4.3 Changing Manifold Assembly

4.4 Swapping the High/Lowpressure Side Connection

This procedure can be applied only to a transmitter with a vertical impulse piping type.

The procedure below can be used to turn the pressure detector assembly 180°. Perform this operation in a maintenance shop with the necessary tools laid out and ready for use, and then install the transmitter in the eld after making the change.

1) Use an Allen wrench (JIS B4648, nominal 2.5

mm) to remove the two setscrews at the joint between the pressure-detector section and transmitter section.

2) Leaving the transmitter section in position,

rotate the pressure-detector section 180°.

IM 01C25K01-01E

<4. Installation>

4-3

3) Tighten the two setscrews to x the pressuredetector section and transmitter section together (at a torque of 1.5 N·m).

Reposition the manifold assembly and drain

(vent) plugs to the opposite side as described in subsection 4.3.

Before

Manifold

Figure 4.4 Before and After Modication

Setscrew

After rotating 180°

Manifold

F0404.ai

4.5 Rotating Transmitter Section

The transmitter section can be rotated approximately 360° (180° to either direction or 360° to one direction from the original position at shipment, depending on the conguration of the instrument.) It can be xed at any angle within above range.

1) Remove the two setscrews that fasten the transmitter section and capsule assembly, using the Allen wrench.

2) Rotate the transmitter section slowly and stop it at designated position.

3) Tighten the two setscrews to a torque of 1.5 N·m.

IMPORTANT

Do not rotate the transmitter section more than the above limit.

Vertical impulse piping type

Pressure-detector section

Horizontal impulse piping type

Transmitter section

Figure 4.5 Rotating Transmitter Section

(Left Side High Pressure Type)

Stopper

Rotate 0 to ±180° segments

Conduit connection

Transmitter section

Conduit connection

Rotate 0 to ±180° segments

Zero-adjustment screw

Pressure-detector section

4.6 Changing the Direction of Integral Indicator

IMPORTANT

Always turn OFF power, release pressure and remove a transmitter to non-hazardous area before disassembling and reassembling an indicator.

F0405.ai

An integral indicator can be installed in the following three directions. Follow the instructions in section

8.4 for removing and attaching the integral indicator.

F0406.ai

Figure 4.6 Integral Indicator Direction

IM 01C25K01-01E

<5. Installing Impulse Piping>

5. Installing Impulse Piping

5-1

5.1 Process Piping Installation Precautions

The manifold contains a small-bore orice. For the transmitter of a high pressure connection right side, the orice is placed facing such a direction as to enable normal ow measurement when uid is owed from right to left (as viewed from the front). If the orice is removed from the manifold, it must be replaced facing the correct direction. (For disassembly and reassembly procedures, see Subsection 8.4.4)

Pay careful attention to the following points when routing the process piping and connection the process piping to the transmitter.

5.1.1 Connecting Process Piping to the Transmitter

(1) Conrming the Process Fluid Flow

Direction (Figure 5.1)

The mark “ ” on the manifold indicates the direction in which the process uid is owed (from right to left). When connecting the process piping to the process connector, conrm the process uid ow direction.

Manifold

Flow direction(from right to left)

Process connection (outflow side)

Orifice name plate

Process connection

(inflow side)

(2) Tightening the Process Connector

Mounting Bolts

The transmitter is shipped with the process connector mounting bolts only loosely tightened. After connecting the process piping, tighten these bolts uniformly to prevent leaks with a torque of 39 to 49 N·m {4 to 5 kgf·m}.

(3) Removing the Process Connector Port

Dustproof Cap

The process connector port threads are covered with a plastic cap to exclude dust. This cap must be removed before connecting the piping. (Be careful not to damage the threads when removing this cap. Never insert a screwdriver or other tool between the cap and port threads to remove the cap.)

5.1.2 Routing the Process Piping

(1) Relationship between Process Fluid

and Manifold Locations (For the vertical impulse piping type)

If condensate (or gas) generated in the process piping were allowed to accumulate, then it would be necessary to remove it periodically by opening the drain (or vent) plug. However, this would generate a transient disturbance in the pressure measurement. Therefore, the process piping must be routed so that any condensate (or gas) generated in the process piping will not accumulate in the pressuresensing assembly of the transmitter.

Bolt

Process connector (low pressure side)

Figure 5.1 Manifold and Flow Direction Indication

Process connector (high pressure side)

F0501.ai

NOTE

• If the process uid is a gas, then as a rule the manifold must be located at the downside of the pressure-sensing assembly. (Figure 5.2)

• If the process uid is a liquid, then as a rule the manifold must be located at the upside of the pressure-sensing assembly. (Figure 5.3)

(2) Pipe Size for Process Piping

Use a 15 mm (1/2-inch) pipe for process piping connection to the process connector.

IM 01C25K01-01E

<5. Installing Impulse Piping>

5-2

(3) Preventing Freezing

If there is any risk that the process uid in the transmitter pressure-sensing assembly could freeze or solidify, use a steam jacket or heater to maintain the temperature of the uid.

Manifold

Figure 5.2 Manifold Location at the Downside (for

Gas Flow Measurement)

Manifold

Figure 5.3 Manifold Location at the Upside (for

Liquid Flow Measurement)

F0502.ai

F0503.ai

5.2 Process Piping Connection Examples

Figure 5.4 shows examples of typical process piping connections. Before connecting the transmitter to the process, study the transmitter installation location, the process piping layout, and the characteristics of the process uid (corrosiveness, toxicity, ammability, etc.), in order to make appropriate changes and additions to the connection congurations.

• A variety of process piping-mounted stop valves are available according to the type of connection (anged, screwed, welded), construction (globe, gate, or ball valve), temperature and pressure. Select the type of valve most appropriate for the application.

Gas flow measurement

Union or flange

Stop valve

Manifold

Process piping

Liquid flow measurement

Manifold

Union or flange

Stop valve

Process piping

F0504.ai

Figure 5.4 Process Piping Connection Examples

Note the following points when referring to these piping examples.

• The high pressure connecting port on the transmitter is shown on the right (as viewed from the front).

• The transmitter process piping connection is shown for a vertical impulse piping connection conguration in which the direction of process ow is from right to left.

• The process piping material used must be compatible with the process pressure, temperature, and other conditions.

IM 01C25K01-01E

<6. Wiring>

6. Wiring

6-1

6.1 Wiring Precautions

IMPORTANT

• Lay wiring as far as possible from electrical noise sources such as large capacity transformers, motors, and power supplies.

• Remove the electrical connection dust cap before wiring.

• All threaded parts must be treated with waterproong sealant. (A non-hardening silicone group sealant is recommended.)

• To prevent noise pickup, do not pass signal and power cables through the same ducts.

• Explosion-protected instruments must be wired in accordance with specic requirements (and, in certain countries, legal regulations) in order to preserve the effectiveness of their explosion-protected features.

• The terminal box cover is locked by an Allen head bolt (a shrouding bolt) on ATEX ameproof type transmitters. When the shrouding bolt is driven clockwise using an Allen wrench, it goes in. The cover lock can then be released and the cover can be opened by hand. See subsection 8.4 “Disassembly and Reassembly” for details.

• Plug and seal an unused conduit connection.

6.3 Connections of External Wiring to Terminal Box

6.3.1 Power Supply Wiring Connection

Connect the power supply wiring to the SUPPLY + and – terminals. When /AL is specied, also refer to subsection 6.3.5.

Power supply

–

Figure 6.1 Power Supply Wiring Connection

6.3.2 External Indicator Connection

Available only when /AL is not specied.

Connect wiring for external indicators to the CHECK + and – terminals.

(Note) Use a external indicator whose internal resistance is 10 Ω

or less.

Power supply

–

Transmitter terminal box

Figure 6.2 External Indicator Connection

Transmitter terminal box

External indicator

PULSE

SUPPLY

CHECK ALARM

PULSE

SUPPLY

CHECK ALARM

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F0602.ai

6.2 Selecting the Wiring Materials

(a) Use stranded leadwires or cables which are

the same as or better than 600 V grade PVC insulated wire (JIS C3307) or its equivalent.

(b) Use shielded wires in areas that are susceptible

to electrical noise.

temperatures, use appropriate wires or cables.

(d) In environment where oils, solvents, corrosive

gases or liquids may be present, use wires or cables that are resistant to such substances.

(e) It is recommended that crimp-on solderless

terminal lugs (for 4 mm screws) with insulating sleeves be used for leadwire ends.

6.3.3 Communicator Connection

Connect the BT200 or HART Communicator to the SUPPLY + and – terminals. (Use hooks.)

Transmitter terminal box

PULSE

SUPPLY

CHECK ALARM

BT200

Figure 6.3 BT200 Connection

Power supply

–

Ignore the polarity since the BT200 is AC-coupled to the terminal box.

F0603.ai

IM 01C25K01-01E

<6. Wiring>

6-2

6.3.4 Check Meter Connection

Available only when /AL is not specied.

Connect the check meter to the CHECK + and – terminals. (Use hooks.)

• A 4 to 20 mA DC output signal from the CHECK + and – terminals.

(Note) Use a check meter whose internal resistance is 10 Ω or

less.

Check meter

Transmitter terminal box

PULSE

SUPPLY

CHECK ALARM

Figure 6.4 Check Meter Connection

Power supply

–

F0604.ai

6.3.5 Status Output Connection

When option code /AL is specied, connect the external wiring as shown in Figure 6.5.

To congure and activate the process alarm function and status output, it is necessary to set some parameters. Refer to each communication manual for procedures.

Transmitter

terminal box

PULSE

SUPPLY

CHECK ALARM

Shielded cable

24V DC

–

250

Distributor

Ω

(1) General-use Type and Flameproof Type

Hazardous Location Nonhazardous Location

Transmitter terminal box

Distributor (Power supply unit)

PULSE

SUPPLY

CHECK ALARM

Receiver instrument

F0606.ai

Figure 6.6 Connection between Transmitter and

Distributor

(2) Intrinsically Safe Type

With the intrinsically safe type, a safety barrier must be included in the loop.

Hazardous Location Nonhazardous Location

Transmitter terminal box

Distributor (Power supply unit)

PULSE

SUPPLY

CHECK ALARM

Receiver instrument

Safety barrier

F0607.ai

Figure 6.7 Connection between Transmitter and

Distributor

6.4.2 Wiring Installation

Magnetic

External power supply 30V DC, 120mA max

Use two-wire separately shielded cables.

AC power supply

valve

F0605.ai

Figure 6.5 Status Output Connection

6.4 Wiring

6.4.1 Loop Conguration

Since the DPharp uses a two-wire transmission system, signal wiring is also used as power wiring.

DC power is required for the transmitter loop. The transmitter and distributor are connected as shown below.

For details of the power supply voltage and load resistance, see section 6.6; for communications line requirements, see section 9.1.

(1) General-use Type and Intrinsically Safe

Type

With the cable wiring, use a metallic conduit or waterproof glands.

• Apply a non-hardening sealant to the terminal box connection port and to the threads on the exible metal conduit for waterproong.

Flexible metal conduit

Apply a non-hardening

Wiring metal conduit

Tee

Drain plug

Figure 6.8 Typical Wiring Using Flexible Metal

Conduit

sealant to the threads for waterproofing.

IM 01C25K01-01E

F0608.ai

<6. Wiring>

6-3

(2) Flameproof Type

Wire cables through a ameproof packing adapter, or use a ameproof metal conduit.

 Wiring cable through ameproof packing

adapter.

• Apply a non-hardening sealant to the terminal box connection port and to the threads on the ameproof packing adapter for waterproong.

Flameproof packing adapter

Flexible metal conduit

Wiring metal conduit

Tee

Drain plug

Apply a non-hardening sealant to the threads for waterproofing.

F0609.ai

Figure 6.9 Typical Cable Wiring Using Flameproof

Packing Adapter

 Flameproof metal conduit wiring

• A seal tting must be installed near the terminal box connection port for a sealed construction.

• Apply a non-hardening sealant to the threads of the terminal box connection port, exible metal conduit and seal tting for waterproong.

Non-hazardous area

Hazardous area

Flameproof heavy-gauge steel conduit

Tee

Drain plug

Figure 6.10 Typical Wiring Using Flameproof Metal

Conduit

Gas sealing device

Flameproof flexible metal conduit

Apply a non-hardening sealant to the threads of these fittings for waterproofing

Seal fitting

After wiring, impregnate the fitting with a compound to seal tubing.

F0610.ai

6.5 Grounding

Grounding is always required for the proper operation of transmitters. Follow the domestic electrical requirements as regulated in each country. For a transmitter with a built-in lightning protector, grounding should satisfy ground resistance of 10Ω or less.

Ground terminals are located on the inside and outside of the terminal box. Either of these terminals may be used.

PULSE

SUPPLY

CHECK

Ground terminal (inside)

Ground terminal (outside)

Figure 6.11 Ground Terminals

ALARM

F0611.ai

6.6 Power Supply Voltage and Load Resistance

When conguring the loop, make sure that the external load resistance is within the range in the gure below.

(Note) In case of an intrinsically safe transmitter, external load

resistance includes safety barrier resistance.

600

External

load

resistance

R (Ω)

250

E–10.5

0.0244

Communication

applicable range

BRAIN and HART

0 10.5 16.6 25.2 42

Power supply voltage E (V DC)

Figure 6.12 Relationship between Power Supply

Voltage and External Load Resistance

IM 01C25K01-01E

F0612.ai

<7. Operation>

7. Operation

7-1

7.1 Preparation for Starting Operation

The Model EJ115 low ow transmitter measures the ow rates of liquids and gases. This section describes the operation procedure for the EJ115 as shown in Figure 7.1 (vertical impulse piping type, high-pressure connection: right side) when measuring a liquid ow rate.

(a) Follow the procedures below to introduce

process pressure into the transmitter.

1) Open the stop valve on the downstream side.

2) Gradually open the stop valve on the upstream side to introduce process uid into the transmitter pressure-detector section. This will cause process uid to ow into the orice built in the manifold, and apply owdependent differential pressure to the high and low pressure sides of the transmitter.

3) Conrm that there are no pressure leaks in the stop valves on the upstream and downstream sides, process piping connection or transmitter, etc.

(b) Venting Gas from the Transmitter Pressure-

detector Section.

Since the piping in the example of Figure 7.1

is constructed to be self-venting, no venting operation is required. If it is not possible to make the piping self-venting, refer to Subsection 7.6 for instructions.

BT200 to the SUPPLY + and – terminals.

(d) Using the BT200, conrm that the transmitter is

operating properly. Check parameter values or change the setpoints as necessary.

If the transmitter is equipped with an integral

indicator, its indication can be used to conrm that the transmitter is operating properly.

Stop valve(downstream side)

Manifold

Stop valve

(upstream side)

 Conrming that Transmitter is Operating

Properly

Using the BT200

• If the wiring system is faulty, ‘communication error’ appears on the display.

• If the transmitter is faulty, ‘SELF CHECK ERROR’ appears on the display.

PARAM C60:SELF CHECK ERROR

communication error

DATA DIAG PRNT ESC

Communication error (Faulty wiring)

Figure 7.2 BT200 Display

Self-diagnostic error (Faulty transmitter)

F0702.ai

Using the integral indicator

• If the wiring system is faulty, the display stays blank.

• If the transmitter is faulty, an error code is displayed.

Self-diagnostic error on the integral indicator (Faulty transmitter)

Figure 7.3 Integral Indicator with Error Code

F0703.ai

NOTE

If any of the above errors are indicated on the display of the integral indicator or the communicator, refer to subsection 8.5.3 for the corrective action.

Figure 7.1 Liquid Flow Measurement

F0701.ai

IM 01C25K01-01E

<7. Operation>

F0704.ai

7-2

 Verify and Change Transmitter

Parameter Setting and Values

The parameters related to the following items are set at factory as specied in order.

• Calibration range

• Integral indicator display

• Output mode

• Software damping (optional)

Other parameters like following are shipped with the default setting.

• Low-cut

• Process alarm setting

• Static pressure range

• Signal characterizer

• Write protection

To conrm or change the values, see IM 01C25T0106EN or 01C25T03-01E.

7.2 Zero Point Adjustment

After completing preparations for operating the transmitter, adjust the zero point.

Zero point adjustment can be done by turning the transmitter’s zero-adjustment screw or by using the communicator. This section describes the procedure for the zero-adjustment screw. For the communicator procedure, see the communication manual.

IMPORTANT

Do not turn off the power to the transmitter immediately after performing a zero point adjustment. Powering off within 30 seconds of performing this procedure will return the zero point to its previous setting.

NOTE

Before performing this adjustment, make sure that the external zero adjustment function has NOT been disabled by a parameter setting.

 Adjusting Zero Point for Differential

Pressure Transmitters

Before adjusting zero point, make sure that the equalizing valve is open.

Zero-adjustment screw cover

Figure 7.4 External Zero Adjustment Screw

The zero-adjustment screw is located inside the cover. Use a slotted screwdriver to turn the zeroadjustment screw. Equalize the transmitter, then turn the screw clockwise to increase the output or counterclockwise to decrease the output. The zero point adjustment can be made with a resolution of 0.01% of the setting range. The degree of zero adjustments varies with the screw turning speed; turn the screw slowly to make a ne adjustment, quickly to make a rough adjustment.

7.3 Starting Operation

After completing the zero point adjustment, follow the procedure below to start operation.

1) Open the stop valve on the upstream side.

2) Gradually open the stop valve on the downstream side. This places the transmitter in an operational condition.

3) Conrm the operating status. If the output signal exhibits wide uctuations (hunting) due to periodic variation in the process pressure, use BT200 to dampen the transmitter output signal. Conrm the hunting using a receiving instrument or the integral indicator, and set the optimum damping time constant.

4) After conrming the operating status, perform the following.

To check the output signal, use a digital multimeter, calibrator, or communicator.

IM 01C25K01-01E

<7. Operation>

7-3

IMPORTANT

• Remove the BT200 from the terminal box, and conrm that none of the terminal screws are loose.

• Close the terminal box cover and the amplier cover. Screw each cover in tightly until it will not turn further.

• There are two covers that must be locked on the ATEX Flameproof type transmitters. An Allen head bolts (shrouding bolts) are provided under edge of the each cover for locking. When a shrouding bolts are driven counterclockwise by an Allen wrench, it is coming out and locks up a cover. (See section 8.4) After locking, the covers should be conrmed not to be opened.

• Tighten the zero-adjustment cover mounting screw to x the cover in position.

7.4 Shutting Down Operation

Shut down the transmitter operation as follows.

1) Turn off the power.

2) Close the stop valves on the up and downstream sides.

NOTE

Whenever shutting down the transmitter for a long period, remove any process fluid from the transmitter pressure-detector section.

7.5 Transmitter Measurement

Range (Determining Differential Pressure Range)

The following describes the procedure for calculating the differential pressure range and the calculation example in low ow measurement.

7.5.1 Determining the Differential Pressure Range

Use the following procedures to determine a differential pressure range according to the uid conditions being measured.

(a) Calculate a water or air equivalent ow from the

ow of the uid being measured (100% ow).

 Equivalent Water Flow Calculation

Qw = 0.03162 . Qf . ρf (1)

Where, Qw: Water equivalent volumetric ow

(m3/h) at 4°C, 1 atm

Qf: Volumetric liquid ow (m3/h)

at operating conditions (t°C, p kPa)

ρf: Specic liquid density (kg/m3)

at operating conditions (t°C, p kPa)

 Equivalent Air Flow Calculation

Qo = 0.5356 . Qn ρn .

Where, Qo: Air equivalent volumetric ow at 0°C,

1 atm (Nm3/h)

Qn: Volumetric gas ow at 0°C,

1 atm (Nm3/h)

ρn: Specic gas density at 0°C,

1 atm (kg/Nm3)

Zn: Compression factor of gas at 0°C,

1 atm

Zf: Compression factor of gas at

operations conditions (t°C, p kPa)

(b) Obtain a differential pressure from the

above equivalent water or air ow using the nomograph shown in Figure 7.5.1 or 7.5.2. In this procedure, multiply Qw or Qo by 1000/60 to convert the ow unit into liter/min.

pressure loss, etc.

(d) As necessary, calculate Reynolds number at

normal ow rate and correct the differential pressure obtained from the procedure (b).

273.15 + t

101.325+ pZfZn

(2)

Conversion factor in pressure unit:

1 Pa = 1.01972×10-1 mmH2O 1 mmH2O = 9.80665 Pa 1 atm = 1.01325×102 kPa

IM 01C25K01-01E

<7. Operation>

7-4

 Reynolds Number Calculation

Re = 354 (3)

Where, Re: Reynolds number at normal ow rate W: Weight ow at normal ow rate (kg/h)

D: Orice bore (mm) µ: Viscosity (mPa·s)

D.µ

(Note)

Note: Determination of W

· For liquid, W=Qf·ρf

· For gas, W=Qn·ρn

 Differential Pressure Correction using

Reynolds Number

∆P =

Kaf/Ka

Where, ∆P: Corrected differential pressure ∆P0: Differential pressure obtained from

Kaf/ka: Correction factor obtained from

For details concerning determination of differential pressure correction using Reynolds number, pressure loss, etc., refer to TI 01C20K00-01E.

∆P

procedure (b)

Figure 7.5.3

7.5.2 Example of Calculation

Fluid: N2 gas (Nitrogen gas) Flow range: 0 to 25 Nm3/h

(ow rate at 0°C, 1 atm) Normal ow rate: 18 Nm3/h Specic density: 1.251 kg/Nm3

(specic density at 0°C, 1 atm) Temperature: 30°C Pressure: 100 kPa Viscosity: 0.018 mPa·s

From Equation (2), air equivalent volumetric ow Qo is:

Qo= 0.5356 × 25 1.251 ×

A differential pressure range of 0 to 2400 mmH2O is obtained from Figure 7.5.2 applying an orice bore of 6.350 mm (where, Zf/Zn=1 is assumed).

From Equation (3), Reynolds number at normal ow rate Re is:

Re = 354 × = 6.97 × 10

18 × 1.251

6.35 × 0.018

Since the correction factor (1.00) is constant at this Reynolds number, no differential pressure correction is required. Consequently, the differential pressure range is determined as 0 to 2400 mmH2O.

273.15 + 30

101.325 + 100

= 18.38 Nm

/h = 306.3 Nl/min

0.05

200

100

Differential

Pressure

(kPa)

0.01 0.05 0.1 0.5 1 5 10 40

Figure 7.5.1 Relationship between Equivalent Water Flow and Differential Pressure

0.508 0.864 1.511 2.527 4.039 6.350

0.1 0.5 1 5 10 40

Equivalent water flow(liter/min at 0°C, 1 atm)

200

100

F0705.ai

IM 01C25K01-01E

<7. Operation>

0.5 1 5 10 50 100 500 1000

200

7-5

200

100

Differential

Pressure

(kPa)

0.508 0.864 1.511 2.527 4.039 6.350

0.5 1 5 10 50 100 500 1000

Equivalent air flow(liter/min at 0°C, 1 atm)

Figure 7.5.2 Relationship between Equivalent Air Flow and Differential Pressure

100

F0706.ai

1.00

Correction

0.95 E

Factor

(Kaf/Ka)

0.90

0.85

0.80

0.75

86 5 862 3 4 5 862 3 42 3

4 45

A: F9340NL (Ø0.508) B: F9340NM (Ø0.864) C: F9340NN (Ø1.511) D: F9340NP (Ø2.527) E: F9340NQ (Ø4.039) F: F9340NR (Ø6.350)

Reynolds number(Re)

Figure 7.5.3 Relationship between Reynolds Number and Correction Factor

5 10

F0707.ai

IM 01C25K01-01E

<7. Operation>

7-6

7.6 Venting or Draining Transmitter Pressuredetector Section

Since this transmitter is designed to be selfdraining and self-venting with vertical impulse piping connections, neither draining nor venting will be required if the impulse piping is congured appropriately for self-draining or self-venting operation.

If condensate (or gas) collects in the transmitter pressure-detector section, the measured pressure may be in error. If it is not possible to congure the piping for self-draining (or self-venting) operation, you will need to loosen the drain (vent) screw on the transmitter to completely drain (vent) any stagnated liquid (gas).

However, since draining condensate or bleeding off gas gives the pressure measurement disturbance, this should not be done when the loop is in operation.

7.6.2 Venting Gas

1) Gradually open the vent screw to vent gas from the transmitter pressure-detector section. (See Figure 7.6.2.)

2) When the transmitter is completely vented, close the vent screw.

3) Tighten the vent screw to a torque of 10 N·m {1kgf·m}.

Vent screw

When you loosen the vent screw, the gas escapes in the direction of the arrow.

Figure 7.6.2 Venting the Transmitter

F0709.ai

WARNING

Since the accumulated liquid (or gas) may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors.

7.6.1 Draining Condensate

1) Gradually open the drain screw or drain plug and drain the transmitter pressure-detector section. (See Figure 7.6.1.)

2) When all accumulated liquid is completely removed, close the drain screw or drain plug.

3) Tighten the drain screw to a torque of 10 N·m {1kgf·m}, and the drain plug to a torque of 34 to 39 N·m {3.5 to 4 kgf·m}.

7.7 Setting the Range Using the Range-setting Switch

WARNING

The range setting switch must not be used in the hazardous area. When it is necessary to use the switch, operate it in a non-hazardous location.

When pressure is applied to the transmitter, the lowand high-limit values for the measurement range (LRV and URV) can be changed (re-ranged) using the range-setting switch (push-button) located on the optional integral indicator plate and the external zero adjustment screw. This procedure does not require use of the communicator. However, changes in the scale range and engineering unit display settings for the integral indicator require use of the communicator.

Follow the procedure below to change the LRV and URV settings.

Drain screw

Drain plug

When you loosen the drain screw or drain plug, the accumulated loquid will be expelled in the direction on th earrow.

Figure 7.6.1 Draining the Transmitter

F0708.ai

IM 01C25K01-01E

<7. Operation>

7-7

[Example]

Rerange LRV to 0 and URV to 3 MPa.

1) Connect the transmitter and apparatus as shown in Figure 8.1 and warm it up for at least ve minutes.

2) Press the range-setting push-button.

The integral indicator then displays “LRV.SET.”

3) Apply a pressure of 0 kPa (atmospheric pressure) to the transmitter.

(Note 1)

4) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %.

(Note 2)

5) Adjust the output signal to 0% (1 V DC) by rotating the external zero-adjustment screw. Doing so completes the LRV setting.

6) Press the range-setting push-button. The integral indicator then displays “URV.SET.”

7) Apply a pressure of 3 MPa to the transmitter.

(Note 1)

8) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %.

(Note 2)

9) Adjust the output signal to 100% (5 V DC) by rotating the external zero-adjustment screw. Doing so completes the URV setting.

10) Press the range-setting push-button. The transmitter then switches back to the normal operation mode with the measurement range of 0 to 3 MPa.

IMPORTANT

• Do not turn off the power to the transmitter immediately after completion of the change in the LRV and/or URV setting(s). Note that powering off within thirty seconds after setting will cause a return to the previous settings.

• Changing LRV automatically changes URV to the following value.

URV=previous URV+(new LRV–previous LRV)

• If the range-setting push-button and external zero-adjustment screw are not touched during a range-change operation, the transmitter automatically switches back to the normal operation mode.

Integral indicator

Figure 7.7 Range-setting Switch

Note 1: Use a thin bar which has a

blunt tip, e.g., a hexagonal wrench, to press the range-setting push-button.

Note 2: The push-button is located

in either lower right or lower left portion of the LCD indicator.

Range-setting switch (Push-button)

F0710.ai

Note 1: Wait until the pressure inside the pressure-detector

section has stabilized before proceeding to the next step.

Note 2: If the pressure applied to the transmitter exceeds the

previous LRV (or URV), the integral indicator may display error number “AL.30” (In this case, the output signal percent and “AL.30” are displayed alternately every two seconds). Although “AL.30” is displayed, you may proceed to the next step. However, should any other error number be displayed, take the appropriate measure in reference to , “Errors and Countermeasures” in each communication manual.

IM 01C25K01-01E

<8. Maintenance>

8. Maintenance

8-1

8.1 Overview

WARNING

Since the accumulated process uid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body or inhalation of vapors when draining condensate or venting gas from the transmitter pressure-detector section and even after dismounting the instrument from the process line for maintenance.

Maintenance of the transmitter is easy due to its modular construction. This chapter describes the procedures for calibration, adjustment, and the disassembly and reassembly procedures required for component replacement.

Transmitters are precision instruments. Please carefully and thoroughly read the following sections for information on how to properly handle them while performing maintenance.

IMPORTANT

• As a rule, maintenance of this transmitter should be done in a shop that has all the necessary tools.

• The CPU assembly contains sensitive parts that can be damaged by static electricity. Take precautions such as using a grounded wrist strap when handling electronic parts or touching the board circuit patterns. Also be sure to place the removed CPU assembly into a bag with an antistatic coating.

8.3 Calibration

Use the procedure below to check instrument operation and accuracy during periodic maintenance or troubleshooting.

1) Connect the instruments as shown in gure 8.1 and warm up the instruments for at least ve minutes.

IMPORTANT

• Do not perform the calibration procedure until the transmitter is at room temperature.

• To adjust the transmitter for highest accuracy, make adjustments with the power supply voltage and load resistance including leadwire resistances set close to the conditions under which the transmitter is installed.

• If the measurement range 0% point is 0 kPa or shifted in the positive direction (suppressed zero), the reference pressure should be applied as shown in the gure. If the measurement range 0% point is shifted in the negative direction (elevated zero), the reference pressure should be applied using a vacuum pump.

2) Apply reference pressures of 0%, 50%, and 100% of the measurement range to the transmitter. Calculate the errors (differences between digital voltmeter readings and reference pressures) as the pressure is increased from 0% to 100% and is decreased from 100% to 0%, and conrm that the errors are within the required accuracy.

8.2 Calibration Instruments Selection

Table 8.1 lists the instruments that can be used to calibrate a transmitter. When selecting an instrument, consider the required accuracy level. Exercise care when handling these instruments to ensure they maintain the specied accuracy.

IM 01C25K01-01E

<8. Maintenance>

Table 8.1 Instruments Required for Calibration

Name Yokogawa-recommended Instrument Remarks

Power supply Model SDBT or SDBS distributor 4 to 20 mA DC signal Load resistor Model 2792 standard resistor [250 Ω ±0.005%, 3 W]

Load adjustment resistor [100 Ω ±1%, 1 W]

Voltmeter Model 2501 A digital multimeter

Accuracy (10V DC range): ±(0.002% of rdg + 1 dgt)

Digital manometer

Model MT220 precision digital manometer

1) For 10 kPa class

Accuracy: ±(0.015% of rdg + 0.015% of F.S.). . . . for 0 to 10 kPa

Select a manometer having a pressure range close to that of the transmitter.

±(0.2% of rdg + 0.1% of F.S.). . . . . . . . for -10 to 0 kPa

2) For 130 kPa class

Accuracy: ±0.02% of rdg. . . . . . . . . . . . . . . . . . . . for 25 to 130 kPa

±5digits. . . . . . . . . . . . . . . . . . . . . . . . . for 0 to 25 kPa

±(0.2% of rdg + 0.1% of F.S.). . . . . . . . for -80 to 0 kPa

3) For 700 kPa class

Accuracy: ±(0.02% of rdg + 3digits) . . . . . . . . . . . for 100 to 700 kPa

±5 digits . . . . . . . . . . . . . . . . . . . . . . . . for 0 to 100 kPa

±(0.2% of rdg + 0.1% of F.S.). . . . . . . . for -80 to 0 kPa

4) For 3000 kPa class

Accuracy: ±(0.02% of rdg + 10 digits). . . . . . . . . . for 0 to 3000 kPa

±(0.2% of rdg + 0.1% of F.S.). . . . . . . . for -80 to 0 kPa

5) For 130 kPa abs class

Accuracy: ±(0.03% of rdg + 6 digits). . . . . . . . . . . for 0 to 130 kPa abs

Pressure generator

Model 7674 pneumatic pressure standard for 200 kPa {2 kgf/cm2}, 25 kPa {2500 mmH2O}

Requires air pressure supply.

Accuracy: ±0.05% of F.S.

Dead weight gauge tester 25 kPa {2500 mmH2O}

Accuracy: ±0.03% of setting

Select the one having a pressure range close to that of the transmitter.

Pressure source

Model 6919 pressure regulator (pressure pump)

Pressure range: 0 to 133 kPa {1000 mmHg}

Prepare the vacuum pump for negative pressure ranges.

Note: The above table contains the instruments capable of performing calibration to the 0.2% level. Since special maintenance and

management procedures involving traceability of each instrument to higher-level standards are required for calibration to the 0.1% or higher level, there may be difculties in calibration to this level in the eld. For calibration to the 0.1% level, contact Yokogawa representatives from which the instrument was purchased or the nearest Yokogawa ofce.

8-2

Using pressure generator

Low pressure side open to atmosphere

Supply pressure

Pressure generator

Reference pressure

High pressure side High pressure side

Load resistance,

Load adjusting resistance,

100Ω

250Ω

RRc

Digital voltmeter

Figure 8.1 Instrument Connections (EJX110A)

Using pressure source with manometer

Low pressure side open to atmosphere

Power supply E

Pressure source

Model MT220

precision digital manometer

Reference pressure

Load resistance,

Load adjusting resistance,

100Ω

250Ω

RRc

Digital voltmeter

Power supply E

F0801.ai

IM 01C25K01-01E

<8. Maintenance>

8-3

8.4 Disassembly and Reassembly

This section describes procedures for disassembly and reassembly for maintenance and component replacement.

Always turn OFF power and shut off and release pressures before disassembly. Use proper tools for all operations. Table 8.2 shows the tools required.

Table 8.2 Tools for Disassembly and Reassembly

Tool Quantity Remarks

Phillips screwdriver

Slotted screwdriver

Allen wrenches 3 JIS B4648

Wrench 1 Width across ats, 17 mm Torque wrench 1 Adjustable

wrench Socket wrench 1 Width across ats, 16 mm Socket driver 1 Width across ats, 5.5 mm Tweezers 1

1 JIS B4633, No. 2

One each, nominal 3, 4 and

2.5 mm Allen wrenches

CAUTION

Precautions for ATEX Flameproof Type Transmitters

• Flameproof type transmitters must be, as a rule, removed to a non-hazardous area for maintenance and be disassembled and reassembled to the original state.

• On the ameproof type transmitters the two covers are locked, each by an Allen head bolt (shrouding bolt). When a shrouding bolt is driven clockwise by an Allen wrench, it is going in and cover lock is released, and then the cover can be opened.

When a cover is closed it should be locked

by a shrouding bolt without fail. Tighten the shrouding bolt to a torque of 0.7 N·m.

Shrouding Bolt

8.4.1 Replacing the Integral Indicator

CAUTION

Cautions for Flameproof Type Transmitters

Users are prohibited by law from modifying the construction of a ameproof type transmitter. This would invalidate the agency approval for the use of the transmitter in a rated area. It follows that the user is prohibited from using a ameproof type transmitter with its integral indicator removed, or from adding an integral indicator to a transmitter. If such modication is absolutely required, contact Yokogawa.

This subsection describes the procedure for replacing an integral indicator. (See gure 8.3)

■ Removing the Integral Indicator

1) Remove the cover.

2) While supporting the integral indicator with one hand, loosen its two mounting screws.

3) Dismount the LCD board assembly from the CPU assembly.

When doing this, carefully pull the LCD board

assembly straight forward so as not to damage the connector pins between it and the CPU assembly.

■ Attaching the Integral Indicator

1) Align both the LCD board assembly and CPU assembly connectors and engage them.

2) Insert and tighten the two mounting screws.

3) Replace the cover.

Output terminal cable

Press forward

Slide switch

Integral indicator

Boss

CPU assembly

Bracket (for zero-adjustment screw pin)

LCD board assembly

Mounting screw

Amplifier Cover

Zeroadjustment screw

Zero-adjustment screw pin

Shrouding Bolt

Figure 8.2 Shrouding Bolts

F0802.ai

F0803.ai

Figure 8.3 Removing and Attaching LCD Board

Assembly and CPU Assembly

IM 01C25K01-01E

<8. Maintenance>

8-4

8.4.2 Replacing the CPU Board Assembly

This subsection describes the procedure for replacing the CPU assembly. (See gure 8.3)

■ Removing the CPU Assembly

1) Remove the cover. If an integral indicator is mounted, refer to subsection 8.4.1 and remove the indicator.

2) Turn the zero-adjustment screw to the position (where the screw head slot is horizontal) as shown in gure 8.3.

3) Disconnect the output terminal cable (cable with brown connector at the end). When doing this, lightly press the side of the CPU assembly connector and pull the cable connector to disengage.

4) Use a socket driver (width across ats, 5.5mm) to loosen the two bosses.

5) Carefully pull the CPU assembly straight forward to remove it.

6) Disconnect the at cable (cable with white connector at the end) that connects the CPU assembly and the capsule.

NOTE

Conrm that the zero-adjustment screw pin is placed properly in the groove on the bracket prior to tightening the two bosses. If it is not, the zeroadjustment mechanism will be damaged.

5) Replace the cover.

8.4.3 Replacing the Process Connector Gaskets

This subsection describes process connector gasket replacement. (See Figure 8.4.)

(a) Loosen the two bolts, and remove the process

connectors. (b) Replace the process connector gaskets. (c) Remount the process connectors. Tighten the

bolts securely and uniformly with a torque of 39

to 49 N·m {4 to 5 kgf·m}, and verify that there

are no pressure leaks.

Process connector gasket

Process connector

Be careful not to apply excessive force to the CPU assembly when removing it.

■ Mounting the CPU Assembly

1) Connect the at cable (with white connector) between the CPU assembly and the capsule.

2) Connect the output terminal cable (with brown connector).

NOTE

Make certain that the cables do not get pinched between the case and the edge of the CPU assembly.

3) Align and engage the zero-adjustment screw pin with the groove on the bracket on the CPU assembly. Then insert the CPU board assembly straight onto the post in the amplier case.

4) Tighten the two bosses. If the transmitter is equipped with an integral indicator, refer to subsection 8.4.1 to mount the indicator.

Bolt

F0804.ai

Figure 8.4 Removing and Mounting the Process

Connector

8.4.4 Cleaning Manifold Assembly and Replacing Orice

This subsection describes the procedures for cleaning the manifold assembly and replacing the orice to change ow rate. (See Figure 8.5.)

■ Removing the Manifold Assembly

1) Remove the process connector as shown in

Subsection 9.4.3.

2) Remove the four bolts that connect the cover

ange with the manifold.

3) Remove the spacer, orice, and orice gasket

from inside the manifold.

4) Clean the manifold, spacer, and orice, or

replace them as necessary.

IM 01C25K01-01E

<8. Maintenance>

8-5

IMPORTANT

Exercise care as follows when cleaning the manifold assembly.

• Handle the manifold assembly with care, and be careful not to damage the inner part of the manifold, spacer, and orice. Be especially careful not to damage or distort the orice edge (orice bore).

• Do not use a chlorinated or acidic solution for cleaning.

• Rinse thoroughly with clean water after cleaning.

■ Reassembling the Manifold Assembly

1) Reassemble the orice gasket, orice, and spacer into the manifold in that order. When reassembling, refer to Figure 8.5 to ensure that they are placed in the correct direction. Replace the orice gasket with a new gasket.

2) Mount the process connector as shown in Subsection 9.4.3.

3) Mount the manifold on the cover ange with the four bolts. Tighten the four bolts uniformly to a torque of 39 to 49 N·m {4 to 5 kgf·m}. Replace the manifold gaskets with new gaskets.

4) After completing reassembly, a leak test must be performed to verify that there are no pressure leaks.

NOTE

Exercise care as follows when reassembling the manifold assembly. (See Figure 8.5.)

• Be careful not to reassemble the orice in the wrong direction. Note that the spacer is congured so that it cannot be placed in the reverse direction.

• When mounting the manifold on the cover ange, conrm the indication “ow direction” shown on the manifold surface and the high and low pressure sides of the pressuredetector section. Mount the manifold so that the upstream side of process uid ow is located at the high pressure side of the pressure-detector section.

Spacer

Orifice

Process connector gasket

Orifice gasket

Manifold gasket

Low pressure side

Figure 8.5 Manifold Assembly

Bolt

Manifold

Process connector

gasket

Cover flange

High pressure side

F0805.ai

8.4.5 Cleaning and Replacing the Capsule Assembly

This subsection describes the procedures for cleaning and replacing the capsule assembly. (See gure 8.6.)

CAUTION

Cautions for Flameproof Type Transmitters

Users are prohibited by law from modifying the construction of a ameproof type transmitter. If you wish to replace the capsule assembly with one of a different measurement range, contact Yokogawa. The user is permitted, however, to replace a capsule assembly with another of the same measurement range. When doing so, be sure to observe the following.

• The replacement capsule assembly must have the same part number as the one being replaced.

• The section connecting the transmitter and capsule assembly is a critical element in preservation of ameproof performance, and must be checked to verify that it is free of dents, scratches, and other defects.

• After completing maintenance, be sure to securely tighten the setscrews that fasten the transmitter section and pressure-detector section together.

IM 01C25K01-01E

<8. Maintenance>

8-6

■ Removing the Capsule Assembly

IMPORTANT

Exercise care as follows when cleaning the capsule assembly.

• Handle the capsule assembly with care, and be especially careful not to damage or distort the diaphragms that contact the process uid.

• Do not use a chlorinated or acidic solution for cleaning.

• Rinse thoroughly with clean water after cleaning.

1) Remove the CPU assembly as shown in subsection 8.4.2.

2) Remove the two setscrews that connect the transmitter section and pressure-detector section.

3) Remove the hexagon-head screw and the stopper.

4) Separate the transmitter section and pressuredetector section.

5) Remove the nuts from the four ange bolts.

6) While supporting the capsule assembly with one hand, remove the cover ange.

7) Remove the capsule assembly.

8) Clean the capsule assembly or replace with a new one.

■ Reassembling the Capsule Assembly

1) Insert the capsule assembly between the ange bolts, paying close attention to the relative positions of the H (high pressure side) and L (low pressure side) marks on the capsule assembly.

Replace the two capsule gaskets with new

gaskets.

2) Install the cover ange on the high pressure side, and use a torque wrench to tighten the four nuts uniformly to a torque 17 N·m (40 N·m for measurement span code F.)

3) After the pressure-detector section has been reassembled, a leak test must be performed to verify that there are no pressure leaks.

4) Reattach the transmitter section to the pressure-detector section. Reattach the stopper with the hexagon-head screw.

5) Tighten the two setscrews. (Tighten the screws to a torque of 1.5 N·m)

6) Install the CPU assembly according to subsection 8.4.2.

7) After completing reassembly, adjust the zero point and recheck the parameters.

Transmitter section

Setscrew

Nut

Capsule gasket

Flange bolt

Pressure-detector section

Cover flange

Figure 8.6 Removing and Mounting the Pressure-

detector Section

F0806.ai

8.5 Troubleshooting

If any abnormality appears in the measured values, use the troubleshooting ow chart below to isolate and remedy the problem. Since some problems have complex causes, these ow charts may not identify all. If you have difculty isolating or correcting a problem, contact Yokogawa service personnel.

8.5.1 Basic Troubleshooting

First determine whether the process variable is actually abnormal or a problem exists in the measurement system.

If the problem is in the measurement system, isolate the problem and decide what corrective action to take.

This transmitter is equipped with a self-diagnostic function which will be useful in troubleshooting, and the transmitter equipped with an integral indicator will show an alarm code as a result of selfdiagnosis. See subsection 8.5.3 for the list of alarms. See also each communication manual.

IM 01C25K01-01E

<8. Maintenance>

8-7

: Areas where self-diagnostic offers support

Abnormalities appear in measurement.

YES

Inspect the

process system.

YES

Inspect receiver.

Environmental conditions

Check/correct

environmental conditions.

Check/correct operating

Is process variable

itself abnormal?

Measurement system problem

Isolate problem in

measurement system.

Does problem exist in receiving instrument?

Operating conditions

conditions.

Transmitter itself

Check transmitter.

F0807.ai

8.5.2 Troubleshooting Flowcharts

The following sorts of symptoms indicate that transmitter may not be operating properly. Example : • There is no output signal.

• Output signal does not change even though process variable is known to be varying.

• Output value is inconsistent with value inferred for process variable.

Connect communicator and check self-diagnostics.

Does the self-diagnostic

indicate problem location?

Is power supply polarity correct?

Refer to Section 6.3 to check/correct

YES

Are power

supply voltage and load

resistance correct?

YES

Are valves opened or

closed correctly?

YES

polarity at each terminal from power supply to the terminal box.

Refer to Section 6.6 for rated voltage and load resistance.

Fully close equalizing valve, and fully open high pressure and low pressure valves.

Refer to error message summary in Subsection 8.5.3 or in each communication manual to take actions.

YES

Figure 8.7 Basic Flow and Self-Diagnostics

Is there any pressure leak?

Fix pressure leaks, paying particular

Is there

continuity through the

transmitter loop wiring?

Do the loop numbers

match?

YES

Is orifice clogged with

dust, etc?

Contact Yokogawa service personnel.

attention to connections for impulse piping,pressure-detector section, etc.

Find/correct broken conductor or wiring error.

Refer to Subsection 8.4.4 to clean the manifold assembly.

YES

F0808.ai

IM 01C25K01-01E

<8. Maintenance>

8-8

Output travels beyond 0% or 100%.

Connect a communicator and check self-diagnostics.

Does the self-

diagnostic indicate problem

location?

Refer to error message summary in

Is power supply

polarity correct?

YES

Are valves opened or

closed correctly?

YES

Is there any pressure leak?

each communication manual to take actions.

Refer to Section 6.3 to check/correct polarity at each terminal from power supply to the terminal box.

Fully close equalizing valve, and fully open high pressure and low pressure valves.

Fix pressure leaks, paying particular attention to connections for impulse piping, pressure-detector section, etc.

YES

Large output error.

Connect a communicator and check self-diagnostics.

Does the self-

diagnostic indicate problem

location?

Refer to error message summary in

Are valves opened or

closed correctly?

YES

Is impulse piping

connected correctly?

YES

Are power supply

voltage and load resistance

correct?

YES

each communication manual to take actions.

Fully close equalizing valve, and fully open high pressure and low pressure valves.

Refer to individual model user manuals and connect piping as appropriate for the measurement purpose.

Refer to Section 6.6 for rated voltage and load resistance.

YES

Is the transmitter

installed as appropriate for

the flow direction?

Refer to Subsection 5.1.1 and install

YES

Is zero point

adjusted correctly?

YES

Contact Yokogawa service personnel.

the transmitter as appropriate for the flow direction of fluid.

Adjust the zero point.

F0809.ai

Is transmitter

installed where there is

marked variation in

temperature?

Provide lagging and/or cooling, or allow

Were appropriate

instruments used for

calibration?

YES

Is output adjusted correctly?

YES

Is orifice clogged with

dust, etc?

YES

Contact Yokogawa service personnel.

adequate ventilation.

Refer to Section 8.2 when selecting instruments for calibration.

Adjust the output.

Refer to Subsection 8.4.4 to clean the manifold assembly.

YES

F0810.ai

IM 01C25K01-01E

<8. Maintenance>

8.5.3 Alarms and Countermeasures

Table 8.1 Alarm Message Summary

Indicator Cause

None AL. 01

CAP. ERR

Sensor problem. Outputs the signal (Hold, High, or Capsule temperature sensor

problem. Capsule EEPROM problem.

AL. 02 AMP. ERR

Amplier temperature sensor problem.

Amplier EEPROM problem. Amplier problem.

AL. 10 PRESS

AL. 11

Input is outside measurement range limit of capsule.

Static pressure exceeds limit. Continues to operate and output.

ST. PRSS AL. 12

CAP. TMP AL. 13

AMP. TMP AL. 30

RANGE AL. 31

SP. RNG AL. 35 *

P. HI AL. 36 *

Capsule temperature is outside range (–50 to 130°C).

Amplier temperature is outside range (–50 to 95°C)

Output is outside upper or lower range limit value.

Static pressure exceeds specied range.

Input pressure exceeds specied threshold.

P. LO AL. 37 *

SP. HI AL. 38 *

Input static pressure exceeds specied threshold.

SP. LO AL. 39 *

TMP. HI AL. 40 *

Detected temperature exceeds specied threshold.

TMP. LO AL. 50

P. LRV

Specied value is outside of setting range.

AL. 51 P. URV

AL. 52 P. SPN

AL. 53 P. ADJ

AL. 54 SP. RNG

AL. 55 SP. ADJ

AL. 60 SC. CFG

Specied values or settings to dene signal characterizer function do not satisfy the condition.

AL. 79

Displayed value exceeds limit.

OV. DISP

Output Operation

during Error

Countermeasure

Replace capsule when error

Low) set with parameter.

keeps appearing even after restart.

Outputs the signal (Hold, High, or

Replace amplier.

Low) set with parameter.

Outputs high range limit value or low range limit value.

Check input or replace capsule when necessary.

Use heat insulation or make lagging to keep temperature within range.

Outputs high range limit value or low range limit value.

Check input and range setting, and change them as needed.

Holds output immediately before error occurred.

Continues to operate and

Check input.

output.

Holds output immediately before error occurred.

Check setting and change them as needed.

Continues to operate and output. Check input.

Continues to operate and output holding static pressure in %.

Check setting and change them as needed.

Continues to operate and output. Check input.

Check setting and change them as needed.

8-9

*1: These alarms may appear only when process alarm function is activated.

IM 01C25K01-01E

<9. General Specications>

9. General Specications

9-1

9.1 Standard Specications

Refer to IM 01C25T02-01E for FOUNDATION Fieldbus communication type and IM 01C25T0401EN for PROFIBUS PA communication type for the items marked with “◊”.

 Performance Specications

See General Specications sheet, GS 01C25K0101EN or GS 01C31K01-01EN.

 Functional Specications

Span & Range Limits

Water Equivalent Flow l/min

0.016 to 5.0 0.44 to 140

0.022 to 23.0 0.63 to 635

0.07 to 33.0 2.0 to 910

Capsule

Differential

Pressure Span

1 to 5 kPa

{100 to 500 mmH2O}

2 to 100 kPa

{200 to 10000 mmH2O}

20 to 210 kPa

{2000 to 21000 mmH2O}

Output “◊”

Two wire 4 to 20 mA DC output with digital communications, linear or square root programmable. BRAIN or HART FSK protocol are superimposed on the 4 to 20 mA signal. Output range: 3.6 mA to 21.6 mA Output limits conform to NAMUR NE43 can be pre-set by option C2 or C3.

Air

Equivalent

Flow Nl/min

Update Period “◊”

Differential Pressure: 45 ms Static Pressure: 360 ms

Zero Adjustment Limits

Zero can be fully elevated or suppressed, within the lower and upper range limits of the capsule.

External Zero Adjustment “◊”

External Zero is continuously adjustable with

0.01% incremental resolution of span. Re-range can be done locally using the digital indicator with range-setting switch.

Integral Indicator (LCD display)

5-digit Numerical Display, 6-digit Unit Display and Bar graph. The indicator is congurable to display one or up to four of the following variables periodically.; Differential pressure in %, Scaled Differential pressure, Differential Pressure in Engineering unit, Static Pressure in Engineering unit. See “Setting When Shipped” for factory setting.

Burst Pressure Limits (Differential pressure

transmitter part)

69 MPa (10000 psi)

 Normal Operating Condition

(Selected features may affect limits.)

Ambient Temperature Limits

–40 to 85°C (–40 to 185°F) –30 to 80°C (–22 to 176°F) with LCD display

Failure Alarm “◊”

Output status at CPU failure and hardware error;

Up-scale: 110%, 21.6 mA DC or more (standard) Down-scale: –5%, 3.2 mA DC or less

Note: Applicable for Output signal code D and E

Damping Time Constant (1st order)

Amplier damping time constant is adjustable from 0 to 100.00 seconds and added to response time.

Note: For BRAIN protocol type, when amplier damping

is set to less than 0.5 seconds, communication may occasionally be unavailable during the operation, especially while output changes dynamically. The default setting of damping ensures stable communication.

Process Temperature Limits

–40 to 120°C (–40 to 248°F)

Ambient Humidity Limits

0 to 100% RH

IM 01C25K01-01E

<9. General Specications>

9-2

Working Pressure Limits (Silicone oil)

Maximum Pressure Limits

All capsules 16 MPa (2300 psi)

Minimum Pressure Limit

See graph below

100(14.5)

Working pressure kPa abs

(psi abs)

10(1.4)

2.7(0.38)

1(0.14)

Figure 9.1 Working Pressure and Process

Applicable range

-40 (-40)

(32)

(104)

Process temperature °C (°F)

Temperature

80 (176)

Atmospheric pressure

120 (248)

F0901.ai

Supply Voltage

10.5 to 42 V DC for general use and ameproof type.

10.5 to 32 V DC for lightning protector (Option code /A).

10.5 to 30 V DC for intrinsically safe, type n or non-incendive type.

Minimum voltage limited at 16.6 V DC for digital

communications, BRAIN and HART

Load (Output signal code D, E and J)

0 to 1290 Ω for operation 250 to 600 Ω for digital communication

Communication Requirements “◊”

(Safety approvals may affect electrical requirements.)

BRAIN

Communication Distance

Up to 2 km (1.25 miles) when using CEV polyethylene-insulated PVC-sheathed cables. Communication distance varies depending on type of cable used.

Supply & Load Requirements “◊” (Optional

features or approval codes may affect electrical requirements.)

With 24 V DC supply, up to a 550 Ω load can be used. See graph below.

600

E-10.5

External load resistance

250

(Ω)

Figure 9.2 Relationship Between Power Supply

0.0244

10.5 16.6

Power supply voltage E (V DC)

Voltage and External Load Resistance

Digital

Communication

range

BRAIN and HART

25.2 42

Load Capacitance

0.22 μF or less

Load Inductance

3.3 mH or less

Input Impedance of communicating device

10 kΩ or more at 2.4 kHz.

HART

Communication Distance

Up to 1.5 km (1 mile) when using multiple twisted pair cables. Communication distance varies depending on type of cable used.

EMC Conformity Standards ,

EN61326-1 Class A, Table2 (For use in industrial locations) EN61326-2-3

F0902.ai

IM 01C25K01-01E

<9. General Specications>

 Physical Specications

Wetted Parts Materials

Diaphragm, Cover Flange, Process Connector, Capsule Gasket, Vent/Drain Plug, Manifold, Orice, Spacer, and Orice gasket

Non-wetted Parts Materials

Bolting

ASTM-B7 carbon steel, 316L SST stainless steel, or ASTM grade 660 stainless steel

Housing

Low copper cast aluminum alloy with polyurethane paint or ASTM CF-8M stainless steel

Degrees of Protection

IP66/IP67, NEMA TYPE 4X

Cover O-rings

Buna-N, uoro-rubber (option)

9-3

Nameplate and tag

316SST (including /N4 wired tag)

Fill Fluid

Silicone, Fluorinated oil (option)

Weight

[Installation code 7, 8, and 9 and measurement span code M and H]

4.5 kg (9.9 lb) without integral indicator and mounting bracket. [Installation code 7, 8 and 9 and measurement span code F]

5.4 kg (11.9 lb) without integral indicator and mounting bracket.

Add 1.5 kg (3.3lb) for amplier housing code 2.

Connections

Refer to “Model and Sufx Code.”

Process Connection of Cover Flange: IEC61518

IM 01C25K01-01E

<9. General Specications>

9.2 Model and Sufx Codes

Model Sufx Codes Description

EJX115A EJA115E

Output signal

Measurement span (capsule)

Wetted parts material

Process connections ►

Bolts and nuts

material J . . . . . . . . . . . . . .

Installation

Amplier housing 1 . . . . . . . . . .

Electrical connection

Integral indicator

Mounting bracket

►

— -N . . . . Always -N

— 00 . . . Always 00 — N. . . Always N — N. . Always N — 0 . Always 0 Optional codes

The “►” marks indicate the most typical selection for each specication. *1: Not applicable for output signal code F. *2: Not applicable for electrical connection code 0, 5, 7 and 9. *3: Material of a blind plug is aluminum alloy or 304 SST. *4: Cast version of 316 SST. Equivalent to SCS14A. *5: Hastelloy C-276 or ASTM N10276. *6: Not applicable for output signal code G. The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of 316 SST material, there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.

. . . . . . . . . . . . . . . . . . . . . . Low ow transmitter

-D . . . . . . . . . . . . . . . . . . . .

-E . . . . . . . . . . . . . . . . . . . .

-J . . . . . . . . . . . . . . . . . . . .

-F . . . . . . . . . . . . . . . . . . . .

4 to 20 mA DC with digital communication (BRAIN protocol) 4 to 20 mA DC with digital communication (HART protocol) 4 to 20 mA DC with digital communication (HART 5/HART 7 protocol) Digital communication (FOUNDATION Fieldbus protocol,

refer to IM 01C25T02-01E)

-G . . . . . . . . . . . . . . . . . . . .

Digital communication (PROFIBUS PA protocol,

refer to IM 01C25T04-01EN)

F . . . . . . . . . . . . . . . . . . .

M . . . . . . . . . . . . . . . . . .

H. . . . . . . . . . . . . . . . . . .

1 to 5 kPa (4 to 20 inH2O) 2 to 100 kPa (8 to 400 inH2O) 20 to 210 kPa (80 to 840 inH2O)

S . . . . . . . . . . . . . . . . . . Cover ange and process connector: ASTM CF-8M

Capsule: Hastelloy C-276 (Diaphragm) # F316L SST/316L SST (Others) Capsule gasket: Teon-coated 316L SST Drain/Vent plug: 316 SST # Orice: 316 SST # Manifold: F316 SST # Spacer: 316 SST # Orice gasket: PTFE

2 . . . . . . . . . . . . . . . .

4 . . . . . . . . . . . . . . . .

Rc1/2 female 1/2 NPT female

For Cover ange For Process connector For Manifold

SNB7 SNB7 316L SST

G. . . . . . . . . . . . . .

-2 . . . . . . . . . . .

-3 . . . . . . . . . . .

-6 . . . . . . . . . . .

-7 . . . . . . . . . . .

-8 . . . . . . . . . . .

-9 . . . . . . . . . . .

►

316L SST 316L SST 316L SST Vertical impulse piping type, right side high pressure, manifold upside

Vertical impulse piping type, right side high pressure, manifold downside Vertical impulse piping type, left side high pressure, manifold upside Vertical piping, left side high pressure, and manifold downside Horizontal piping and right side high pressure Horizontal piping and left side high pressure

Cast aluminum alloy

2 . . . . . . . . . .

3 . . . . . . . . . .

0 . . . . . . . . .

►

2 . . . . . . . . .

4 . . . . . . . . .

5 . . . . . . . . .

7 . . . . . . . . .

9 . . . . . . . . .

A. . . . . . . . .

C. . . . . . . . .

D. . . . . . . . .

D. . . . . . .

E . . . . . . .

►

N. . . . . . .

B. . . . .

D. . . . .

J . . . . .

K. . . . .

N. . . . .

ASTM CF-8M Stainless steel Cast aluminum alloy with corrosion resistance properties

G1/2 female, one electrical connection without blind plugs 1/2 NPT female, two electrical connections without blind plugs M20 female, two electrical connections without blind plugs G1/2 female, two electrical connections and a blind plug 1/2 NPT female, two electrical connections and a blind plug M20 female, two electrical connections and a blind plug G1/2 female, two electrical connections and a SUS316 blind plug 1/2 NPT female, two electrical connections and a SUS316 blind plug M20 female, two electrical connections and a SUS316 blind plug

Digital indicator

Digital indicator with the range setting switch None

304 SST 2-inch pipe mounting, at type (for horizontal piping) 304 SST 2-inch pipe mounting, L type (for vertical piping) 316 SST 2-inch pipe mounting, at type (for horizontal piping) 316 SST 2-inch pipe mounting, L type (for vertical piping) None

/  Optional specication

9-4

IM 01C25K01-01E

<9. General Specications>

9.3 Optional Specications

Item Description Code

Factory Mutual (FM) FM Explosionproof *

Explosionproof for Class I, Division 1, Groups B, C and D Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G Hazardous (classied) locations, indoors and outdoors (NEMA 4X)

FM Intrinsically safe *1*

Intrinsically Safe for Class I, Division 1, Groups A, B, C and D, Class II, Division 1,Groups E, F and G and Class III, Division 1 Hazardous Locations. Nonincendive for Class I, Division 2, Groups A, B, C and D, Class II, Division 2, Groups F and G Hazardous Locations.

Combined FF1 and FS1 *1*

ATEX ATEX Flameproof *

II 2G, 2D Ex d IIC T6...T4 Gb, Ex tb IIIC T85°C Db Special fastener: ClassA2-50(A4-50) or more

ATEX Intrinsically safe Ex ia *1*

II 1G, 2D Ex ia IIC T4 Ga, Ex ia IIIC T85°C T100°C T120°C Db

Combined KF22, KS21 and ATEX Intrinsically safe Ex ic

Ex ic: II 3G Ex ic IIC T4 Gc

Canadian Standards Association (CSA)

CSA Explosionproof *

Explosionproof for Class I, Groups B, C and D Dustignitionproof for Class II/III, Groups E, F and G Enclosure TYPE 4X, Temp.Code:T6...T4 Ex d IIC T6...T4 Enclosure IP66 and IP67

Process Sealing Certication

Dual Seal Certied by CSA to the requirement of ANSI/ISA 12.27.01 No additional sealing required Primary seal failure annuniciation: at the zero adjustment screw

CSA Intrinsically safe *1 *

[For CSA C22.2] Intrinsically safe for Class I, Division 1, Groups A, B, C and D, Class II, Division 1, Groups E, F and G, Class III, Division 1 Nonincendive for Class I, Division 2, Groups A, B, C and D, Class II, Division 2, Groups E, F and G, Class III, Division 1 [For CSA E60079] Ex ia IIC T4, Ex nL IIC T4

Process Sealing Certication

Dual Seal Certied by CSA to the requirement of ANSI/ISA 12.27.01 No additional sealing required Primary seal failure annuniciation: at the zero adjustment screw

Combined CF1 and CS1 *1*

IECEx IECEx ameproof *

Flameproof for Zone1, Ex d IIC T6...T4

IECEx Intrinsically safe, type n and ameproof *1*

Intrinsically safe and type n Ex ia IIC T4, Ex nL IIC T4 Flameproof

Flameproof for Zone1, Ex d IIC T6...T4 Combination of Approval Combination of KU22, FU1 and CU1 V1U1 Painting Color change Amplier cover only *

Amplier cover and terminal cover, Munsell 7.5 R4/14 PR

Coating change Anti-corrosion coating *3* 316 SST exterior parts 316 SST name plate, tag plate and zero-adjustment screw * Fluoro-rubber O-ring All O-rings of amplier housing. Lower limit of ambient temperature: –15°C (5°F) HE

FF1

FS1

FU1

KF22

*1*3

KS21

KU22

CF1

CS1

CU1

SF2

SU2

P

9-5

IM 01C25K01-01E

<9. General Specications>

9-6

Item Description Code

Lightning protector Transmitter power supply voltage:

10.5 to 32 V DC (10.5 to 30 V DC for intrinsically safe type.)

Allowable current: Max. 6000 A (1×40 μs), Repeating 1000 A (1×40 μs) 100 times

Applicable Standards: IEC 61000-4-4, IEC 61000-4-5

Status output *

Transistor output (sink type) Contact rating: 10.5 to 30 VDC, 120 mA DC(max) Low level: 0 to 2 VDC

Oil-prohibited use Degrease cleansing treatment. K1

Degrease cleansing treatment and with uorinated oillled capsule. Operating temperature –20 to 80°C( –4 to 176°F)

Oil-prohibited use with dehydrating treatment

Degrease cleansing and dehydrating treatment. Degrease cleansing and dehydrating treatment with uorinated oillled capsule.

Operating temperature –20 to 80°C( –4 to 176°F)

Capsule ll uid Fluorinated oil lled in capsule

Operating temperature –20 to 80°C( –4 to 176°F)

Calibration units *

P calibration (psi unit) bar calibration (bar unit) D3 M calibration (kgf/cm2 unit) D4

(See Table for Span and

Range Limits.)

Gold-plated diaphragm Surface of isolating diaphragm is gold plated, effective for hydrogen permeation. A1 Long vent *

Output limits and failure operation *

Total length: 119 mm (standard: 34 mm); Total length when combining with Optional code K1, K2, K5, and K6: 130 mm. Material: 316 SST.

Failure alarm down-scale: Output status at CPU failure and hardware error is –5%, 3.2 mA DC or less.

NAMUR NE43 Compliant Output signal limits:

3.8 mA to 20.5 mA

Failure alarm down-scale: Output status at CPU failure and hardware error is –5%, 3.2 mA DC or less.

Failure alarm up-scale: Output status at CPU failure and hardware error is 110%, 21.6 mA or more.

Stainless steel tag plate 304 SST tag plate wired onto transmitter (316 SST when /HC is specied) N4 Data conguration at

factory *

Advanced diagnostics *

Data conguration for HART communication type

Data conguration for BRAIN communication type

Multi-sensing process monitoring

• Impulse line blockage detection *

Software damping, Descriptor, Message

Software damping

DG6

• Heat trace monitoring Material certicate * Pressure test/

Leak test certicate *

Contact Yokogawa representative for the codes indicated as ‘-’. *1: Applicable for Electrical connection code 2, 4, 7, 9, C, and D. *2: Not applicable for option code /AL. *3: Not applicable with color change option. *4: Check terminals cannot be used when this option code is specied. Not applicable for output signal code F. *5: The unit of MWP (Max. working pressure) on the name plate of a housing is the same unit as specied by option codes D1, D3, and

D4. *6: Applicable for vertical impulse piping type (Installation code 2, 3, 6, or 7) . *7: Applicable for output signal codes D, E and J. The hardware error indicates faulty amplier or capsule. *8: Also see ‘Ordering Information’. *9: Not applicable for amplier housing code 2. *10: 316 or 316L SST. The specication is included in amplier code 2. *11: Pure nitrogen gas is used for oil-prohibited use (option codes K1, K2, K5, and K6). *12: The unit on the certicate is always Pa unit regardless of selection of option code D1, D3 or D4. *13: Material traceability certication, per EN 10204 3.1B. *14: Applicable only for output signal code -E and -J. *15: The change of pressure uctuation is monitored and then detects the impulse line blockage. See TI 01C25A31-01E for detailed

technical information required for using this function.

Cover ange, Process connector, Manifold, Orice, and Spacer M12 Test Pressure: 16 MPa (2300 psi) Nitrogen(N2) Gas *

Retention time: one minute

T12

IM 01C25K01-01E

<9. General Specications>

9.4 Dimensions

[Measurement span code M and H]

Unit: mm (approx. inch)

Vertical Impulse Piping Type

●

Process connector upside (Installation code 6)

242(9.53)

178(7.01)

(3.82)

(1.61)

58(2.28)

231(9.09)

97(3.82)

(2.05)

Horizontal Impulse Piping Type (Installation code 9)

●

External indicator Conduit connection

(optional)

(2.13)

(0.24)

Electrical connection for code 5, 9, A, and D.

*1: When Installation code 2, 3, or 8 is selected, the flow direction on above figure is reversed. *2: When Option code K1, K2, K5, or K6 is selected, add 15 mm (0.59 inch) to the value in the figure. *3: Available only when specifying the option code including ATEX, IECEx or TIIS flameproof type.

Vent plug

Drain plug

129(5.08)

Process connections

(2.48)

Shrouding bolt*

Mounting bracket (L-type,optional)

145(5.71)

124

(4.88)

(1.85)

89(3.50)

External indicator Conduit connection

(optional)

Integral indicator

95(3.74)

Conduit connection

Zero adjustment

Ground terminal

Vent/Drain plugs

(2.64)

95(3.74)

(1.61)

115(4.53)

Mounting bracket (Flat-type,optional)

(optional)

Electrical connection for code 5, 9, A, and D.

6(0.24)

(2.13)

(0.47)

ø78(3.07)

High pressure side

Conduit connection

Integral indicator (optional)

178

(7.01)

Shrouding bolt*

Process connections

Flow direction*

163(6.42)

Process connector downside (Installation code 7)

242(9.53)

Manifold

(1.54)

ø70(2.76)

146(5.75)*

Low pressure side

2-inch pipe

(O.D. 60.5 mm)

Zero adjustment

Ground terminal

(6.42)

High pressure side

2-inch pipe

(O.D. 60.5 mm)

163

97(3.82)

231(9.09)

58(2.28)

ø78(3.07)

(2.05)

110(4.33)

(0.47)

(1.61)

(1.54)

97(3.82)

(2.48)

ø70

Low pressure side

Flow direction*

178(7.01)

129(5.08)

Process connections

(2.76)

129(5.08)

Manifold

Process connector

9-7

95(3.74)

F0903.ai

● Terminal Configuration

Communication terminals (BT200 etc.) connection hook

SUPPLY +

SUPPLY –

Check meter connection hook

*4*5

CHECK + or ALARM +

CHECK – or ALARM –

● Terminal Wiring

SUPPLY

CHECK

ALARM

*4: When using an external indicator or check meter, the internal resistance must be 10 Ω or less. A check meter or indicator cannot be connected when /AL option is specified. *5: Not available for fieldbus and PROFIBUS communication types.

Power supply and output terminal

– +

External indicator (ammeter) terminal

–

Status contact output terminal

+ –

(when /AL is specified)

Ground terminal

*4*5

F0904.ai

IM 01C25K01-01E

<9. General Specications>

[Measurement span code F]

Unit: mm (approx. inch)

● Vertical Impulse Piping Type

Process connector upside (Installation code 6) Process connector downside (Installation code 7)

64(2.53)

(1.81)

242(9.53)

102(4.02)

(2.05)

Mounting bracket (L-type,optional)

(3.82)

256(10.08)

194(7.64)

143(5.63)97

(2.48)

Shrouding bolt*

Process connections

Integral indicator

(optional)

Zero adjustment

Ground terminal

Electrical connection for code 5, 9, A, and D.

6(0.24)

External indicator Conduit connection

(optional)

(3.74)

Conduit connection

High pressure side

Vent/Drain plugs

2-inch pipe

(O.D. 60.5 mm)

(2.13)

ø78(3.07)

Flow direction*

163(6.42)

(1.54)

(0.35)

ø70(2.76)

Low pressure side

Manifold

242(9.53)

156(6.14)*

(2.05)

102(4.02)

64(2.53)

(1.81)

(3.82)

256(10.08)

194(7.64)

143(5.63)97

Process connections

(2.48)

9-8

95(3.74)

● Horizontal Impulse Piping Type

(Installation code 9)

External indicator Conduit connection

(optional)

(2.13)

(0.24)

Electrical connection for code 5, 9, A, and D.

Vent plug

Drain plug

*1: When Installation code 2, 3, or 8 is selected, the flow direction on above figure is reversed. (i.e. the arrow faces to the left [ ]) *2: When Option code K1, K2, K5, or K6 is selected, add 15 mm (0.59 inch) to the value in the figure. *3: 15 mm (0.59 inch) when Installation code 2, 3 or 8 is selected. *4: Available only when specifying the option code including ATEX, IECEx or TIIS flameproof type.

159(6.26)

124

(4.88)

(1.85)

(3.70)

(3.74)

(2.83)

194

(1.81)

134(5.28)

Mounting bracket (Flat-type,optional)

Conduit connection

Integral indicator (optional)

(7.64)

Shrouding bolt*

Process connections

Zero adjustment

Ground terminal

2-inch pipe

(O.D. 60.5 mm)

163(6.42)

High pressure side

(0.35)

ø78(3.07)

110(4.33)

(1.54)

ø70

Flow direction*

(2.76)

143(5.63)

Manifold

Process connector

Low pressure side

F0905.ai

IM 01C25K01-01E

Revision Information

 Title : Low Flow Transmitter

EJX115A and EJA115E

 Manual No. : IM 01C25K01-01E

Edition Date Page Revised Item

1st July 2008 — New publication

2nd Aug. 2009 2-1 2.1 • Replace a name plate.

2-12 2.10 • Revise standards.

2.11 • Revise information of PED. 9-3 9.2 • Modify descriptions of materials. 9-5 9.3 • Add /A1and /DG6.

3rd Apr. 2010 2-1 2.3 • Add limitation of ambient temperature for /HE.

2-4 to 2-11 2.9 • Add limitation of ambient temperature for /HE.

9-3 9.1 • Add material for cover O-rings 9-5 9.3 • Add /HE. 9-7 9.4 • Correct dimensions.

4th Mar. 2012 2-3

9-3 9-4

5th June 2012 —

1-1

2.3 to 2.12 2-7 to 2-10

8-6

9.1 to end

6th June 2013 —

2-3

2-6, 2-7

2-8 to 2-11

9-4 9-5

9-7 to 9-8

2.9

9.1

9.2

2.9

2.9.3

2.9.2

2.9.3

9.2

9.3

9.4

• Add note for blind plugs.

• Change description for a plate material.

• Add amplier housing code 3.

• Add EJA115E. Delete measurement span code L and Add measurement span code F.

• Add Note. Add model name of EJA115E.

• Delete /V1U.

• Delete /KS2, /KF21, and /KU21. Add /KS21, /KF22, and

/KU22.

• Add note for measurement span code F.

• Add information for EJA115E. Delete output signal code L and add measurement span code F.

• Add note for PROFIBUS PA communication type.

• Add note for multiple approval type.

• Correct CSA applicable standards.

• Replace ATEX type n by ATEX Intrinsically safe Ex ic.

• Add note for CE marking notied body number.

• Add PROFIBUS PA communication type.

• Replace ATEX type n by ATEX Intrinsically safe Ex ic.

• Add /V1U1.

• Add not for shrouding bolt.

IM 01C25K01-01E

Yokogawa EJX115A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Introduction

 Regarding This Manual

1.1 Safe Use of This Product

1.2 Warranty

1.3 ATEX Documentation

2. Handling Cautions

2.2 Unpacking

2.3 Storage

2.4 Selecting the Installation Location

2.7 Restrictions on Use of Radio Transceivers

2.5 Pressure Connection

2.8 Insulation Resistance and Dielectric Strength Test

2.9.1 FM Approval

2.10 EMC Conformity Standards

2.11 Pressure Equipment Directive (PED)

2.12 Low Voltage Directive

3. Component Names

4. Installation

4.1 Precautions

4.2 Mounting

4.3 Changing the manifold assembly

4.5 Rotating Transmitter Section

4.6 Changing the Direction of Integral Indicator

5. Installing Impulse Piping

5.1 Process Piping Installation Precautions

5.1.1 Connecting Process Piping to the Transmitter

5.1.2 Routing the Process Piping

5.2 Process Piping Connection Examples

6. Wiring

6.1 Wiring Precautions

6.3 Connections of External Wiring to Terminal Box

6.3.1 Power Supply Wiring Connection

6.3.2 External Indicator Connection

6.2 Selecting the Wiring Materials

6.3.3 Communicator Connection

6.3.4 Check Meter Connection

6.3.5 Status Output Connection

6.4.2 Wiring Installation

6.4 Wiring

6.5 Grounding

6.6 Power Supply Voltage and Load Resistance

7. Operation

7.1 Preparation for Starting Operation

7.2 Zero Point Adjustment

7.3 Starting Operation

7.4 Shutting Down Operation

7.5.1 Determining the Differential Pressure Range

7.5.2 Example of Calculation

7.6.2 Venting Gas

7.6.1 Draining Condensate

7.7 Setting the Range Using the Range-setting Switch

8. Maintenance

8.1 Overview

8.3 Calibration

8.2 Calibration Instruments Selection

8.4 Disassembly and Reassembly

8.4.1 Replacing the Integral Indicator

8.4.2 Replacing the CPU Board Assembly

8.4.3 Replacing the Process Connector Gaskets

8.4.5 Cleaning and Replacing the Capsule Assembly

8.5 Troubleshooting

8.5.1 Basic Troubleshooting

8.5.2 Troubleshooting Flowcharts

8.5.3 Alarms and Countermeasures

9.4 Dimensions

[Measurement span code M and H]

[Measurement span code F]

Revision Information