Yokogawa EJA438 User Manual

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Instruction Manual

Model EJA438W and EJA438N Diaphragm Sealed Gauge Pressure Transmitters

[Style: S2]

IM 1C22J1-01E

Yokogawa Electric Corporation

IM 1C22J1-01E

10th Edition

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CONTENTS

1. INTRODUCTION ............................................................................................ 1-1

WARRANTY.................................................................................................. 1-2

2. HANDLING CAUTIONS ................................................................................ 2-1

2.1 Model and Specifications Check......................................................... 2-1

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

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

2.4 Selecting the Installation Location ...................................................... 2-1

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

2.6 Waterproofing of Cable Conduit Connections .................................... 2-2

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

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

2.9 Installation of Explosion Protected Type ............................................ 2-3

2.9.1 FM Approval ................................................................................. 2-3

2.9.2 CSA Certification .......................................................................... 2-4

2.9.3 SAA Certification .......................................................................... 2-6

2.9.4 CENELEC (KEMA)/IEC (KEMA) Certification.............................. 2-7

2.9.5 JIS Certification ............................................................................ 2-8

2.10 EMC Conformity Standards ................................................................ 2-9

3. COMPONENT NAMES .................................................................................. 3-1

4. INSTALLATION.............................................................................................4-1

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

4.2 Mounting the Diaphragm Seals .......................................................... 4-1

4.3 Transmitter Mounting .......................................................................... 4-1

4.4 Affixing the Teflon Film ....................................................................... 4-3

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

5. WIRING..........................................................................................................5-1

5.1 Wiring Precautions .............................................................................. 5-1

5.2 Selecting the Wiring Materials ............................................................ 5-1

5.3 Connections of External Wiring to Terminal Box................................ 5-1

5.3.1 Power Supply Wiring Connection ................................................ 5-1

5.3.2 External Indicator Connection ...................................................... 5-1

5.3.3 BRAIN TERMINAL BT200 Connection ........................................ 5-2

5.3.4 Check Meter Connection.............................................................. 5-2

5.4 Wiring .................................................................................................. 5-2

5.4.1 Loop Configuration ....................................................................... 5-2

(1) General-use Type and Flameproof Type ...................................... 5-2

(2) Intrinsically Safe Type................................................................... 5-2

5.4.2 Wiring Installation ......................................................................... 5-3

(1) General-use Type and Intrinsically Safe Type.............................. 5-3

(2) Flameproof Type (JIS).................................................................. 5-3

5.5 Grounding............................................................................................ 5-4

5.6 Power Supply Voltage and Load Resistance ..................................... 5-4

IM 1C22J1-01E

CONTENTS

6. OPERATION..................................................................................................6-1

6.1 Preparation for Starting Operation...................................................... 6-1

6.2 Zero Point Adjustment ........................................................................ 6-2

6.2.1 When you can obtain Low Range Value from actual

measured value of 0% (0 kPa, atmospheric pressure); .............. 6-2

6.2.2 When you cannot obtain Low Range Value from actual

measured value of 0%; ................................................................ 6-3

6.3 Starting Operation ............................................................................... 6-3

6.4 Shutting Down Operation.................................................................... 6-3

6.5 Setting the Range Using the Range-setting Switch ........................... 6-4

7. BRAIN TERMINAL BT200 OPERATION ..................................................... 7-1

7.1 BT200 Operation Precautions............................................................. 7-1

7.1.1 Connecting the BT200 ................................................................. 7-1

7.1.2 Conditions of Communication Line .............................................. 7-1

7.2 BT200 Operating Procedures ............................................................. 7-1

7.2.1 Key Layout and Screen Display................................................... 7-1

7.2.2 Operating Key Functions.............................................................. 7-2

(1) Alphanumeric Keys and Shift Keys .............................................. 7-2

(2) Function Keys............................................................................... 7-2

7.2.3 Calling Up Menu Addresses Using the Operating Keys.............. 7-3

7.3 Setting Parameters Using the BT200 ................................................. 7-4

7.3.1 Parameter Summary .................................................................... 7-4

7.3.2 Parameter Usage and Selection .................................................. 7-6

7.3.3 Setting Parameters ....................................................................... 7-7

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

(2) Calibration Range Setup .............................................................. 7-7

(3) Damping Time Constant Setup..................................................... 7-8

(4) Output Signal Low Cut Mode Setup ............................................. 7-9

(5) Integral Indicator Scale Setup ...................................................... 7-9

(6) Unit Setup for Displayed Temperature........................................ 7-11

(7) Operation Mode Setup ............................................................... 7-11

(8) Output Status Display/Setup when a CPU Failure ..................... 7-11

(9) Output Status Setup when a Hardware Error Occurs................. 7-11

(10)Range Change while Applying Actual Inputs.............................. 7-12

(11)Zero Point Adjustment ................................................................ 7-12

(12)Test Output Setup....................................................................... 7-14

(13)User Memo Fields ...................................................................... 7-14

7.4 Displaying Data Using the BT200..................................................... 7-14

7.4.1 Displaying Measured Data ......................................................... 7-14

7.4.2 Display Transmitter Model and Specifications........................... 7-14

7.5 Self-Diagnostics ................................................................................ 7-15

7.5.1 Checking for Problems............................................................... 7-15

(1) Identifying Problems with BT200................................................ 7-15

(2) Checking with Integral Indicator ................................................. 7-16

7.5.2 Errors and Countermeasures..................................................... 7-17

8. MAINTENANCE ............................................................................................. 8-1

8.1 Overview ............................................................................................. 8-1

8.2 Calibration Instruments Selection ....................................................... 8-1

8.3 Calibration ........................................................................................... 8-1

IM 1C22J1-01E

CONTENTS

8.4 Disassembly and Reassembly............................................................ 8-3

8.4.1 Replacing the Integral Indicator ................................................... 8-3

8.4.2 Replacing the CPU Assembly...................................................... 8-4

8.5 Troubleshooting................................................................................... 8-5

8.5.1 Basic Troubleshooting.................................................................. 8-5

8.5.2 Troubleshooting Flow Charts ....................................................... 8-5

9. GENERAL SPECIFICATIONS ...................................................................... 9-1

9.1 Standard Specifications ...................................................................... 9-1

9.2 Model and Suffix Codes...................................................................... 9-3

9.3 Optional Specifications........................................................................ 9-5

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

INSTALLATION AND OPERATING PRECAUTIONS FOR

JIS INTRINSICALLY SAFE EQUIPMENT.......................................... EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FOR

JIS FLAMEPROOF EQUIPMENT....................................................... EX-B03E

Customer Maintenance Parts List

DPharp EJA Series Transmitter Section ............................ CMPL 1C22A1-02E

Models EJA438W and EJA438N Diaphragm Sealed

REVISION RECORD

Gauge Pressure Transmitter..................................... CMPL 1C22J3-01E

iii

IM 1C22J1-01E

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1. INTRODUCTION

NOTE

1. INTRODUCTION

Thank you for purchasing the DPharp electronic pressure transmitter.

The DPharp Pressure Transmitters are precisely calibrated at the factory before shipment. To ensure correct and efficient use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.

j Regarding This Manual

• This manual should be passed on 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 fitness 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 office.

• The specifications covered by this manual are limited to those for the standard type under the specified model number break-down and do not cover custom-made instruments.

• Please note that changes in the specifications, construction, or component parts of the instrument may not immediately be reflected in this manual at the time of change, provided that postponement of revisions will not cause difficulty to the user from a functional or performance standpoint.

j Safety Precautions

• For the protection and safety of the operator and the instrument or the system including the instrument, please be sure to follow the instructions on safety described in this manual when handling this instrument. In case the instrument is handled in contradiction to these instructions, Yokogawa does not guarantee safety.

• For the intrinsically safe equipment and explosionproof equipment, in case the instrument is not restored to its original condition after any repair or modification undertaken by the customer, intrinsically safe construction or explosionproof construction is damaged and may cause dangerous condition. Please contact Yokogawa for any repair or modification required to the instrument.

• The following safety symbol marks are used in this Manual:

WARNING

Indicates a potentially hazardous situation which, if not avoided, 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

could

result in death or serious

NOTE

For FOUNDATION Fieldbus and HART protocol versions, please refer to IM 1C22T2-01E and IM 1C22T1-01E respectively, in addition to this IM.

IMPORTANT

Indicates that operating the hardware or software in this manner may damage it or lead to system failure.

Draws attention to information essential for understanding the operation and features.

1-1

IM 1C22J1-01E

1. INTRODUCTION

WARRANTY

• The warranty shall cover the period noted on the quotation presented to the purchaser at the time of purchase. Problems occurred during the warranty period shall basically be repaired free of charge.

• In case of problems, the customer should contact the Yokogawa representative from which the instrument was purchased, or the nearest Yokogawa office.

• 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 specification and serial number. Any diagrams, data and other information you can include in your communication will also be helpful.

• Responsible party for repair cost for the problems shall be determined by Yokogawa based on our investigation.

• The Purchaser shall bear the responsibility for repair costs, even during the warranty period, if the malfunction is due to:

- Improper and/or inadequate maintenance by the

purchaser.

- Failure or damage due to improper handling, use or

storage which is out of design conditions.

- Use of the product in question in a location not

conforming to the standards specified by Yokogawa, or due to improper maintenance of the installation location.

- Failure or damage due to modification 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 fires, earthquakes,

storms/floods, thunder/lightening, or other natural disasters, or disturbances, riots, warfare, or radioactive contamination.

WARNING

• Instrument installed in the process is under pressure. Never loosen or tighten the flange bolts as it may cause dangerous spouting of process fluid.

• Since the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors even after dismounting the instrument from the process line for maintenance.

CAUTION

This instrument is tested and certified as intrinsically safe type or explosionproof type. Please note that the construction of the instrument, installation, external wiring, maintenance or repair is strictly restricted, and non-observance or negligence of this restriction would result in dangerous condition.

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IM 1C22J1-01E

2. HANDLING CAUTIONS

This chapter describes important cautions regarding how to handle the transmitter. Read carefully before using the transmitter.

The EJA Series pressure transmitters are thoroughly tested at the factory before shipment. When the transmitter is delivered, visually check them to make sure that no damage occurred during shipment.

Also check that all transmitter mounting hardware shown in Figure 2.1 is included. If the transmitter was ordered without the mounting bracket, the transmitter mounting hardware is not included. After checking the transmitter, repack it in the way it was delivered until installation.

Transmitter mounting bolt

U-bolt

2.2 Unpacking

When moving the transmitter to the installation site, keep it in its original packaging. Then, unpack the transmitter there to avoid damage on the way.

2.3 Storage

The following precautions must be observed when storing the instrument, especially for a long period.

(a) Select a storage area which meets the following

conditions:

• It is not exposed to rain or water.

• It suffers minimum vibration and shock.

• 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

Relative humidity:

5% to 100% R.H. (at 40°C)

Preferred temperature and humidity:

approx. 25°C and 65% R.H.

U-bolt nut

Figure 2.1 Transmitter Mounting Hardware

Mounting bracket

F0201.EPS

2.1 Model and Specifications Check

The model name and specifications are indicated on the name plate attached to the case. If the reverse operating mode was ordered (reverse signal), ‘REVERSE’ will be inscribed in field *1.

Figure 2.2 Name Plate Example of JIS Flameproof Type

(b) When storing the transmitter, repack it as nearly

as possible to the way it was packed when delivered from the factory.

thoroughly clean the diaphragm surface of the diaphragm seal (pressure-detector section), so that no measured fluid remains on them. Also make sure before storing that the pressure-detector and transmitter assemblies are securely mounted.

2.4 Selecting the Installation Location

The transmitter is designed to withstand severe environmental conditions. However, to ensure stable and accurate operation for years, observe the following precautions when selecting an installation location.

(a) Ambient Temperature

Avoid locations subject to wide temperature variations or a significant temperature gradient. If the location is exposed to radiant heat from plant equipments, provide adequate thermal insulation and/or ventilation.

2-1

IM 1C22J1-01E

2. HANDLING CAUTIONS

(b) Ambient Atmosphere

Avoid installing the transmitter in a corrosive atmosphere. If the transmitter must be installed in a corrosive atmosphere, there must be adequate ventilation as well as measures to prevent intrusion or stagnation of rain water in conduits.

Select an installation site suffering minimum shock and vibration (although the transmitter is designed to be relatively resistant to shock and vibration).

(d) Installation of Explosion-protected Transmitters

Explosion-protected transmitters can be installed in hazardous areas according to the types of gases for which they are certified. See Subsection 2.9 “Installation of Explosion Protected Type Transmitters.”

2.5 Pressure Connection

WARNING

• Instrument installed in the process is under pressure. Never loosen or tighten the flange bolts to avoid the dangerous spouting of process fluid.

• Since the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the skin, eyes or body, or inhalation of vapors even after dismounting the instrument from process line for maintenance.

The following precautions must be observed in order to safely operate the transmitter under pressure.

(a) Never apply a pressure higher than the specified

maximum working pressure.

(b) Never loosen or tighten the bolts securing the

diaphragm seal flanges when the assembly is under pressure. Do it after releasing the process pressure if required.

2.6 Waterproofing of Cable Conduit Connections

Apply a non-hardening sealant to the threads to waterproof the transmitter cable conduit connections. (See Figure 5.4.2a, 5.4.2b and 5.4.2d.)

2.7 Restrictions on Use of Radio Transceiver

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 for such effects, bring the transceiver in use slowly from a distance of several meters from the transmitter, and observe the measurement loop for noise effects. Thereafter, always use the transceiver outside the area affected by noise.

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. However, if required, observe the following precautions in the test procedures.

(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.

(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.

lines from the transmitter terminals. Perform the tests in the following procedure:

• 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 short as possible to verify that the insulation resistance is at least 20 MΩ.

2-2

IM 1C22J1-01E

2. HANDLING CAUTIONS

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.

• 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 specified voltage.

4) When the specified voltage is reached, hold it for one minute.

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

2.9 Installation of Explosion

Protected Type

NOTE

For FOUNDATION Fieldbus explosion protected type, please refer to IM 1C22T2-01E.

WARNING

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

2.9.1 FM Approval

a. FM Intrinsically Safe Type

Caution for FM intrinsically safe type. (Following contents refer “DOC. No. IFM012-A12 P.1 and 2.”)

Note 1. Model EJA Series pressure transmitters

with optional code /FS1 are applicable for use in hazardous locations.

• 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 Hazardous Locations.

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

• Outdoor hazardous locations, NEMA 4X.

• Temperature Class: T4

• Ambient temperature: –40 to 60°C

Note 2. Entity Parameters

• Intrinsically Safe Apparatus Parameters [Groups A, B, C, D, E, F and G] Vmax = 30 V Ci = 22.5 nF Imax = 165 mA Li = 730 µH Pmax = 0.9 W

* Associated Apparatus Parameters

(FM approved barriers) Voc ≤ 30 V Ca > 22.5 nF Isc ≤ 165 mA La > 730 µH Pmax ≤ 0.9W

• Intrinsically Safe Apparatus Parameters [Groups C, D, E, F and G] Vmax = 30 V Ci = 22.5 nF Imax = 225 mA Li = 730 µH Pmax = 0.9 W

* Associated Apparatus Parameters

(FM approved barriers) Voc ≤ 30 V Ca > 22.5 nF Isc ≤ 225 mA La > 730 µH Pmax ≤ 0.9 W

• Entity Installation Requirements Vmax ≥ Voc or Vt, Imax ≥ Isc or It, Pmax (IS Apparatus) ≥ Pmax (Barrier) Ca ≥ Ci + Ccable, La ≥ 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 (Classified) Locations” and the National Electric Code (ANSI/NFPA 70).

• The configuration of associated apparatus must be FMRC Approved.

2-3

IM 1C22J1-01E

2. HANDLING CAUTIONS

• 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 0.9 W.

• Note a warning label worded “SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY,” and “INSTALL IN ACCORDANCE WITH DOC. No. IFM012-A12 P.1 and 2.”

Note 4. Maintenance and Repair

• The instrument modification 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

EJA Series Pressure Transmitters

Supply

Hazardous Location Nonhazardous Location

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

EJA Series Pressure Transmitters

Supply

–

[Nonincendive]

+ –

Safety Barrier

+ –

Not Use Safety Barrier

+ –

General Purpose Equipment

+ –

General Purpose Equipment

+ –

F0203.EPS

b. FM Explosionproof Type

Caution for FM explosionproof type.

Note 1. Model EJA Series differential, gauge, and

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

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

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

• Outdoor hazardous locations, NEMA 4X.

• Temperature Class: T6

• Ambient Temperature: –40 to 60°C

• Supply Voltage: 42 V dc max.

• Output signal: 4 to 20 mA

Note 2. Wiring

• All wiring shall comply with National Electrical Code ANSI/NEPA70 and Local Electrical Codes.

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

Note 3. Operation

• Keep the “CAUTION” nameplate attached to the transmitter. CAUTION: OPEN CIRCUIT BEFORE REMOVING COVER. SEAL ALL CONDUITS WITHIN 18 INCHES. WHEN INSTALLED IN DIV.1, “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.” INSTALL IN ACCORDANCE WITH THE INSTRUCTION MANUAL IM 1C22.

• 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 modification 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 EJA Series pressure transmitters with optional code /FU1 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.

2.9.2 CSA Certification

a. CSA Intrinsically Safe Type

Caution for CSA Intrinsically safe type. (Following contents refer to “DOC No. ICS003-A12 P.1-1 and P.1-2.”)

Note 1. Model EJA Series differential, gauge,

and absolute pressure transmitters with optional code /CS1 are applicable for use in hazardous locations

2-4

IM 1C22J1-01E

2. HANDLING CAUTIONS

• 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 Hazardous Locations.

• Nonincendive for Class I, Division 2, Groups A, B, C & D, Class II, Division 2, Groups F & G, and Class III, Hazardous Locations. (not use Safety Barrier)

• Encl. “Type 4X”

• Temperature Class: T4

• Ambient temperature: –40 to 60°C

• Process Temperature: 120°C max.

Note 2. Entity Parameters

• Intrinsically safe ratings are as follows:

Maximum Input Voltage (Vmax) = 30 V Maximum Input Current (Imax) = 165 mA Maximum Input Power (Pmax) = 0.9 W Maximum Internal Capacitance (Ci) = 22.5 nF Maximum Internal Inductance (Li) = 730 µH

* Associated apparatus (CSA certified barriers)

Maximum output voltage (Voc) ≤ 30 V Maximum output current (Isc) ≤ 165 mA Maximum output power (Pmax) ≤ 0.9 W

Note 3. Installation

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

• The instrument modification 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 Certification.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

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

EJA Series Pressure Transmitters

Supply

Hazardous Location Nonhazardous Location

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

EJA Series Pressure Transmitters

Supply

–

[Nonincendive]

+ –

Safety Barrier

–

Not Use Safety Barrier

General Purpose Equipment

+ –

F0204.EPS

b. CSA Explosionproof Type

Caution for CSA explosionproof type.

Note 1. Model EJA Series differential, gauge, and

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

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

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

• Encl “Type 4X”

• Temperature Class: T6, T5, and T4

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

• Ambient Temperature: –40 to 80°C

• Supply Voltage: 42 V dc max.

• Output Signal: 4 to 20 mA

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 figure.

CAUTION: SEAL ALL CONDUITS WITHIN 50 cm OF THE ENCLOSURE. UN SCELLEMENT DOIT ÊTRE INSTALLÉ À MOINS DE 50 cm DU BÎTIER.

• When installed in Division 2, “SEALS NOT REQUIRED.”

Note 3. Operation

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

CAUTION: OPEN CIRCUIT BEFORE REMOVING COVER. OUVRIR LE CIRCUIT AVANT D´NLEVER LE COUVERCLE.

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

Note 4. Maintenance and Repair

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IM 1C22J1-01E

2. HANDLING CAUTIONS

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

EJA Series

F0205.EPS

c. CSA Intrinsically Safe Type/CSA

Explosionproof Type

Model EJA Series pressure transmitters with optional code /CU1 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.

Note 2. Entity Parameters

• Intrinsically safe rating of the transmitters are as follows.

Maximum Input Voltage (Ui) = 30 V Maximum Input Current (Ii) = 165 mA Maximum Input Power (Pi) = 0.9 W Maximum Internal Capacitance (Ci) = 0.02 µF Maximum Internal Inductance (Li) = 0.73 mH

Note 3. Wiring

• All Wiring shall comply with the Australian Standard.

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Standards Association of Australia Intrinsically safe and Type n Certification.

[Intrinsic Safety]

Hazardous Location Nonhazardous Location

(Zone 0)

EJA Series Pressure Transmitter

*1: Any safety barriers used for the output current must be

limited by a resistor “R” such that Imaxout-Uz/R.

Hazardous Location

EJA Series Pressure Transmitter

+ –

[Type n]

(Zone 2)

+ –

Safety Barrier

–

Power Supply

–

F0206.EPS

2.9.3 SAA Certification

a. SAA Intrinsically Safe Type

Caution for SAA Intrinsically safe type and Type n.

Note 1. Model EJA Series differential, gauge, and

absolute pressure transmitters with optional code /SU1 are applicable for use in hazardous locations.

• Type of Protection and Marking Code:

Ex ia IIC T4 (Tamb = 60°C) IP67 Class I Zone 0

• Type of Protection and Marking Code:

Ex n IIC T4 (Tamb = 60°C) IP67 Class I Zone 2

• Ambient Temperature: –40 to 60°C

*2: The voltage of the power supply is not exceed 30V dc.

b. SAA Flameproof Type

Caution for SAA flameproof type.

Note 1. Model EJA Series differential, gauge, and

absolute pressure transmitters with optional code /SU1 are applicable for use in hazardous locations:

• Type of Protection and marking Code: Ex d II C T* IP67 Class I Zone 1 (T* see schedule)

• Temperature Class: T6, T5, and T4

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

2-6

IM 1C22J1-01E

F0207.EPS

2. HANDLING CAUTIONS

• Supply voltage: 42 V dc max.

• Output Signal: 4 to 20 mA

• Ambient Temperature: –40 to 80°C

Note 2. Wiring

• All wiring shall comply with the Australian Standard.

Note 3. Operation

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

CAUTION: AMBIENT TEMPERATURE ABOVE 75 DEG C SELECT SUITABLE CABLE. DISCONNECT POWER AND WAIT 1 MINUTE BEFORE REMAKING COVER.

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

Note 4. Maintenance and Repair

2.9.4 CENELEC (KEMA)/IEC (KEMA) Certification

a. CENELEC (KEMA) Intrinsically Safe Type

Caution for CENELEC (KEMA) intrinsically safe type.

Note 1. Model EJA Series differential, gauge, and

absolute pressure transmitters with optional code /KS1 for potentially explosive atmospheres:

• Type of Protection and Marking code: EEx ia IIC T4

• Temperature Class: T4

• Process Temperature: 120°C max.

• Ambient Temperature: –40 to 60°C

Note 2. Electrical Data

• In type of explosion protection intrinsic safety EEx ia IIC only for connection to a certified intrinsically safe circuit with following maximum values:

Ui = 30 V Ii = 165 mA Pi = 0.9 W Effective internal capacitance; Ci = 22.5 nF Effective internal inductance; Li = 730 µH

Note 3. Installation

• All wiring shall comply with local installation requirements. (Refer to the installation diagram)

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Intrinsically safe Certification.

[Installation Diagram]

Hazardous Location

Transmitter

Supply

–

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

by a resistor “R” such that Imaxout-Uz/R.

Nonhazardous Location

Safety Barrier

–

F0208.EPS

b. CENELEC (KEMA) Flameproof Type

Caution for CENELEC (KEMA) flameproof type.

Note 1. Model EJA Series differential, gauge, and

absolute pressure transmitters with optional code /KF1 for potentially explosive atmospheres:

• Type of Protection and Marking Code: EEx d IIC T6···T4

• Temperature Class: T6, T5, and T4

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

• Ambient Temperature: –40 to 80°C

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 certified flameproof type, suitable for the conditions of use.

Note 4. Operation

• Keep the “CAUTION” label to the transmitter.

CAUTION: WAIT 1 MIN. AFTER POWER-DISCONNECTION, BEFORE OPENING THE ENCLOSURE.

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

Note 5. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Flameproof Certification.

2-7

IM 1C22J1-01E

2. HANDLING CAUTIONS

c. IEC (KEMA) Type of Protection “n”

Caution for IEC (KEMA) Type of Protection “n.”

Note 1. Model EJA Series pressure transmitters

with optional code /KU1 for potentially explosive atmospheres.

• Type of Protection and Marking Code: Ex nA IIC T4

• Temperature Class: T4

• Process Temperature: 120°C max.

• Ambient Temperature: –40 to 60°C

Note 2. Electrical Data

• Supply and output circuit ≤ 30 V dc, 165 mA (terminals + and –)

Note 3. Installation

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

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Type of Protection “n” Certification.

[Installation Diagram]

Hazardous Location

(Zone 2 only)

Transmitter

Supply

–

Nonhazardous Location

Power Supply

–

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.

2.9.5 JIS Certification

JIS Flameproof and Intrinsically Safe Type The model EJA Series pressure transmitters with

optional code /JF1 and /JS1, which have obtained certification according to technical criteria for explosion-protected construction of electric machinery and equipment(Standards Notification No. 556 from the Japanese Ministry of Labor) conforming to IEC standards, are designed for hazardous areas where explosive gases and/or inflammable vapors may be present. [JIS Flameproof Type(optional code /JF1) allows installation in Division 1 and 2 areas, and JIS Intrinsically Safe Type(optional code /JS1) allows installation in Division 0, 1, and 2 areas.]

To observe the safety of flameproof equipment requires great care during mounting, wiring, and piping. Safety requirements also place restrictions on maintenance and repair activities. Users absolutely must read “Installation and Operating Precautions for JIS Intrinsically Safe Equipment and Flameproof Equipment” at the end of this manual.

CAUTION

(For JIS flameproof type without integral indicator)

F0209.EPS

Ratings of the Power Supply as follows;

Maximum Voltage: 30 V Maximum Current: 165 mA

d. CENELEC (KEMA) Intrinsically Safe Type/

CENELEC (KEMA) Flameproof Type/IEC (KEMA) Type of Protection “n”

Model EJA Series pressure transmitters with optional code /KU1 can be selected the type of protection (CENELEC (KEMA) Intrinsically Safe or CENELEC (KEMA) Flameproof or IEC (KEMA) Type of Protection “n”) for use in hazardous locations.

Note 1. For the installation of this transmitter,

When the fill fluid near the sensor part moves from within, the instrument outputs a failure signal either high or low of the specific signal. In that case, generate the alarm to identify that the failure signal is output since the event may invalidate the flameproof approval. If the optional integral indicator is equipped, the indicator identifies the alarm on its display. Therefore, no other alarm generation is necessary.

Hazardous Location Nonhazardous Location

4 to 20 mA DC 1 to 5 V DC

Transmitter

Figure 2.3 Example of using DCS (Distributed Control

System)

Power Supply

DCS

Display

F0210.EPS

2-8

IM 1C22J1-01E

2.10 EMC Conformity Standards

For EMI (Emission): EN55011, AS/NZS 2064 1/2 For EMS (Immunity): EN50082–2

NOTE

YOKOGAWA recommends customer to apply the Metal Conduit Wiring or to use the twisted pair Shield Cable for signal wiring to conform the requirement of EMC Regulation, when customer installs the EJA Series Transmitters to the plant.

2. HANDLING CAUTIONS

2-9

IM 1C22J1-01E

3. COMPONENT NAMES

Transmitter section*

*See below for details.

3. COMPONENT NAMES

Cover flange

Capillary tube

Diaphragm seal

Diaphragm

Flange

Pressure-detector section

F0301.EPS

Figure 3.1.1 Component Names (Model EJA438W External View)

Transmitter section

External indicator conduit connection

(Note 1)

Terminal box cover

Conduit connection

CPU assembly

Integral indicator

(Note 1)

Zero-adjustment screw

Mounting screw

Cover

Pressure-detector section

flange

Setting pin

Amplifier cover

(CN4)

Range-setting switch (See Subsection 6.5)

(Note 1)

Setting pin (CN4)

(Note 2)

position

H L

Burn-out direction

HIGH

LOW

Output at burn-out

110% or

higher

5% or

lower

F0302.EPS

Note 1: Options depend on your order specifications. For details, see Subsection 9.2, “Model and Suffix Codes.” Note 2: • Insert the pin (CN4) as shown in the above figure into the H or L side. The pin is set to the H side for delivery (unless

option code /C1 is otherwise specified in the order).

• The setting can be confirmed by calling up parameter D52 using the BRAIN TERMINAL. Refer to Subsection. 7.3.2 (8).

Display Symbol

Meaning of Display Symbol

The output signal being zero-adjusted is increasing. The output signal being zero-adjusted is decreasing.

%, Pa, hPa, kPa, MPa, kgf/cm atm, mmHg, mmH

O, inH2O, inHg, ftH2O, psi, Torr

, gf/cm2, mbar, bar,

Select one of these seventeen available engineering units for the display.

Figure 3.1.2 Component Names (Transmitter Section Details)

T0301.EPS

3-1

IM 1C22J1-01E

4. INSTALLATION

4.1 Precautions

j 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 Specifications.”

IMPORTANT

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

• Do not step on this instrument after installation.

4.2 Mounting the Diaphragm Seals

Mount the diaphragm seals using the flanges as shown in Figure 4.2.1. Figure 4.2.2 shows how to mount the diaphragm seals on a tank. The customer should prepare the mating flange, gasket, bolts and nuts.

IMPORTANT

• During the diaphragm seal installation, ensure as far as possible that no seal liquid head is applied to the diaphragm seal.

• Exercise care so as not to damage diaphragm surface. Since the diaphragm protrudes approx. 1mm from the flange surface, placing the diaphragm seals with its diaphragm surface facing downward may damage the diaphragm surface.

• Do not sharply bend or twist capillary tube or apply excessive stress to it.

IMPORTANT

Install the sealed diaphragm so that the shank positions downward.

Capillary tube

Diaphragm seal

Flange

Bolt

The product is shipped with these parts assembled.

Correctly install the diaphragm seals on the high and low pressure sides of the process, checking the label on each seal.

Figure 4.2.1 Mounting the Diaphragm Seals

Diaphragm

ød

Gasket

Nut

IMPORTANT

Please use a gasket which has a bigger inside diameter than that of gasket facing (ød) on diaphragm seal. In case a gasket which has a smaller inside diameter than that of gasket facing is used, it may cause an error as the gasket prevents diaphragm from working correctly. (Refer to Subsection 9.4 ‘Dimensions’)

F0401.EPS

F0402.EPS

Figure 4.2.2 Installing the Diaphragm Seals to a Tank

4.3 Transmitter Mounting

j The transmitter can be mounted on a nominal 50

mm (2-inch) pipe using the mounting bracket supplied, as shown in Figure 4.3.1 The transmitter can be mounted on either a horizontal or a vertical pipe.

j When mounting the bracket on the transmitter,

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

IMPORTANT

Never loosen the four screws securing the cover flange or the screws at the joints between the capillary tube and cover flanges (if the seal liquid leaks, the transmitter cannot be used).

4-1

IM 1C22J1-01E

Vertical pipe mounting

Horizontal pipe mounting

U-bolt nut

Transmitter mounting bolt

4. INSTALLATION

IMPORTANT

The transmitter should be installed at least 700 mm (when the model code of the material of the wetted part is H, at least 1300 mm) below the process connection to ensure a positive head pressure of fill fluid. If it can not be installed at least 700 mm below the process connection, please use the equation below:

(P–P0)3dHg

h= 37.5310–3 [mm]

h: Vertical height between the process

connection and the transmitter (mm) h≤0: Install the transmitter at least h (mm)

below the process connection

h>0: Install the transmitter at most h (mm)

above the process connection P: Pressure in the tank (Pa abs) P0: Minimum working pressure limit of the

transmitter (Pa abs)

If the ambient temperature range is

–10 to 50°C.

5254 (Wetted parts material code S)

6980 (Wetted parts material code T)

13019 (Wetted parts material code H)

6980 (Wetted parts material code U) ds: Specific gravity of fill fluid (at 25°C), refer

to GS 1C22J3-E.

dHg:Specific gravity of the Mercury 13.6 (at

25°C)

Mounting bracket

50mm (2-inch) pipe

Figure 4.3.1 Transmitter Mounting

U-bolt

F0403.EPS

(+)

(–)

F0404.EPS

Figure 4.3.2 Example of Installation to Tank (Caution on

Installation)

4-2

IM 1C22J1-01E

4. INSTALLATION

4.4 Affixing the Teflon Film

The FEP Teflon option includes a teflon film and fluorinated oil. Before mounting the diaphragm seal to the process flange, affix the teflon film as follows :

IMPORTANT

(1) Position the diaphragm seal so that the

diaphragm is in a upward position.

(2) Pour the fluorinated oil on the diaphragm and

gasket area covering it completely and evenly. Be careful not to scratch the diaphragm or change the its shape.

(3) Affix the teflon film over the diaphragm and

gasket area.

(4) Next, carefully inspect the cover and try to

identify any entrapped air between the diaphragm and the teflon film. The air must be removed to ensure accuracy. If air pockets are present, use your fingers to remove the air by starting at the center of the diaphragm and work your way out.

(5) Place the gasket with the teflon film and affix

to the process flange.

Teflon film

PART No.

F9347XA F9347YA

Process flange size

For 3inch (80 mm) For 2inch (50 mm)

4.5 Rotating Transmitter Section

The DPharp transmitter section can be rotated in 90° segments.

(1) Remove the two Allen screws that fasten the

transmitter section and pressure-detector section, using the Allen wrench supplied with the transmitter.

(2) Rotate the transmitter section slowly in 90°

segments.

(3) Tighten the two Allen screws.

IMPORTANT

Do not rotate the transmitter section more than 180°.

Transmitter section

Rotate 90° or 180° segments

Conduit connection

Zero-adjustment screw

Fluorinated oil [PART No.: F9145YN]

Diaphragm

Gasket area

Diaphragm seal

Figure 4.4.1 Affixing the Teflon Film

F0405.EPS

Pressure-detector section

Figure 4.5.1 Rotating Transmitter Section

4-3

F0406.EPS

IM 1C22J1-01E

5. WIRING

5.1 Wiring Precautions

IMPORTANT

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

• Remove electrical connection dust cap before wiring.

• All threaded parts must be treated with waterproofing 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 specific requirements (and, in certain countries, legal regulations) in order to preserve the effectiveness of their explosionprotected features.

• The terminal box cover is locked by an Allen head bolt (a shrouding bolt) on CENELEC, SAA, and JIS flameproof type transmitters. When the 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. See Subsection 8.4 “Disassembly and Reassembly” for details.

Refer to The “Installation and Operating Precautions for JIS Flameproof Equipment” and “Installation and Operating Precautions for JIS Intrinsically Safe Equipment” at the end of this manual for correct wiring.

CAUTION

If the transmitter is flameproof and the ambient temperature is 50°C or more, use cables having a maximum allowable heat resistance of at least 75°C in consideration of the instrument's generation of heat or the cables' self-heating.

(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.

5.3 Connections of External Wiring to Terminal Box

5.3.1 Power Supply Wiring Connection

Connect the power supply wiring to the SUPPLY + and – terminals.

Transmitter terminal box

Power supply

–

F0501.EPS

Figure 5.3.1 Power Supply Wiring Connection

5.2 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 equivalent.

(b) Use shielded wires in areas that are susceptible to

electrical noise.

use appropriate wires or cables.

5.3.2 External Indicator Connection

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 5.3.2 External Indicator Connection

5-1

External indicator

IM 1C22J1-01E

F0502.EPS

5. WIRING

5.3.3 BRAIN TERMINAL BT200 Connec-

tion

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

Transmitter terminal box

BT200

Figure 5.3.3 BT200 Connection

Power supply

–

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

F0503.EPS

5.3.4 Check Meter Connection

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.

Power supply

5.4.1 Loop Configuration

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 5.6; for communications line requirements, see Subsection 7.1.2.

(1) General-use Type and Flameproof Type

Hazardous Location Nonhazardous Location

Transmitter terminal box

Figure 5.4.1a Connection between Transmitter and

Distributor

Distributor (Power supply unit)

Receiver instrument

F0505.EPS

–

Check meter

Figure 5.3.4 Check Meter Connection

Transmitter terminal box

F0504.EPS

5.4 Wiring

CAUTION

For the intrinsically safe equipment and flameproof equipment, wiring materials and wiring work for these equipment including peripherals are strictly restricted. Users absolutely must read “Installation and Operating Precautions for JIS Intrinsically Safe Equipment” and “Installation and Operating Precautions for JIS Flameproof Equipment” at the end of this manual prior to the work.

(2) Intrinsically Safe Type

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

Hazardous Location Nonhazardous Location

Transmitter terminal box

Distributor (Power supply unit)

Receiver instrument

Safety barrier

Figure 5.4.1b Connection between Transmitter and

Distributor

F0506.EPS

5-2

IM 1C22J1-01E

5. WIRING

5.4.2 Wiring Installation

(1) General-use Type and Intrinsically Safe

Type

Make cable wiring using metallic conduit or waterproof glands.

• Apply a non-hardening sealant to the terminal box

connection port and to the threads on the flexible metal conduit for waterproofing.

Flexible metal conduit

Apply a non-hardening

Wiring metal conduit

Tee

Drain plug

Figure 5.4.2a Typical Wiring Using Flexible Metal Conduit

(2) Flameproof Type (JIS)

Wire cables through a flameproof packing adapter, or using a flameproof metal conduit.

j Wiring cable through flameproof packing adapter for only JIS flameproof type (see Figure 5.4.2b).

• Use only flameproof packing adapters approved by

Yokogawa.

• Apply a nonhardening sealant to the terminal box

connection port and to the threads on the flameproof packing adapter for waterproofing.

sealant to the threads for waterproofing.

F0507.EPS

• Measure the cable outer diameter in two directions to within 1 mm.

• Calculate the average of the two diameters, and use packing with an internal diameter nearest to this value (see Table 5.4.2).

Table 5.4.2 Flameproof Packings and Applicable Cable

Optional

Code

G11

G12

Outer Diameters

Wiring Port

Thread

Diameter

G 1/2

Applicable

Cable OD

(mm)

8 to 10

10.1 to 12

Identifying

Mark

16 8-10 16 10-12

Part

Number

G9601AM

T0501.EPS

• Mounting flameproof packing adapter body to conduit connection (see Figure 5.4.2c)

1) Screw the flameproof packing adapter into the

terminal box until the O-ring touches the wiring port (at least 6 full turns), and firmly tighten the lock nut.

2) Insert the cable through the union cover, the union

coupling, the clamp nut, the clamp ring, the gland, the washer, the rubber packing, and the packing box, in that order.

3) Insert the end of the cable into the terminal box.

4) Tighten the union cover to grip the cable. When

tightening the union cover, tighten approximately one turn past the point where the cable will no longer move up and down. Proper tightening is important. If it is too tight, a circuit break in the cable may occur; if not tight enough, the flameproof effectiveness will be compromised.

5) Fasten the cable by tightening the clamp nut.

6) Tighten the lock nut on the union cover.

7) Connect the cable wires to each terminal.

Flameproof packing adapter

Flexible metal conduit

Wiring metal conduit

Tee

Drain plug

Figure 5.4.2b Typical Cable Wiring Using Flameproof

Packing Adapter

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

F0508.EPS

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

O-ring

Adapter body

Lock nut

Wrench

Packing box

Rubber packing

Washer

Gland

Clamp ring

Figure 5.4.2c Installing Flameproof Packing Adapter

Clamp nut Union coupling Lock nut Wrench Union cover Cable

5-3

F0509.EPS

IM 1C22J1-01E

5. WIRING

600

250

0 10.5 16.4 24.7 42

External

load

resistance

R (Ω)

Power supply voltage E (V DC)

F0512.EPS

Communication

applicable range

BRAIN and HART

E–10.5

0.0236

j Flameproof metal conduit wiring

• A seal fitting 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, flexible metal conduit and seal fitting for waterproofing.

Non-hazardous area

Hazardous area

Flameproof heavy-gauge steel conduit

Tee

Drain plug

Figure 5.4.2d 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.

F0510.EPS

5.5 Grounding

5.6 Power Supply Voltage and Load Resistance

When configuring the loop, make sure that the external load resistance is within the range in the figure below.

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

resistance includes safety barrier resistance.

Figure 5.6 Relationship between Power Supply Voltage

and External Load Resistance

(a) Grounding should satisfy JIS Class 3 requirements

(grounding resistance, 100 Ω or less). Grounding is required for JIS flameproof type and intrinsically safe type.

(Note) If equipped with built-in Lightning Protector, grounding

should satisfy Special JIS class 3 requirements (grounding resistance, 10 Ω or less).

(b) There are ground terminals on the inside and

outside of the terminal box. Either of these terminals may be used.

ing.

Transmitter terminal box

Ground terminal

F0511.EPS

Figure 5.5 Ground Terminals

5-4

IM 1C22J1-01E

6. OPERATION

NOTE

6. OPERATION

6.1 Preparation for Starting Operation

The Model EJA438W and EJA438N diaphragm sealed gauge pressure transmitter measures the pressure of liquids, gases, and steam. This section describes the operation procedure for the EJA438W as shown in Figure 6.1.1 when measuring pressure in a tank.

(a) Confirm that there is no leak in the connecting part

of each diaphragm seal mounting flange.

(b) Turn ON power and connect the BT200.

Open the terminal box cover and connect the BT200 to the SUPPLY + and –terminals.

operating properly. Check parameter values or change the setpoints as necessary. For BT200 operating procedures, see Chapter 7. If the transmitter is equipped with an integral indicator, its indication can be used to confirm that the transmitter is operating properly.

j Confirming that Transmitter is Operating

Properly

Confirmation 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)

Self-diagnostic error (Faulty transmitter)

F0602.EPS

Confirmation using the integral indicator

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

• If the transmitter is faulty, an error number will appear on the display according to the nature of the error.

Diaphragm seal

Capillary tube

Pressure transmitter

Transmitter mounting pipe 50mm (2 inches)

Figure 6.1.1 Pressure Measurement

F0601.EPS

Self-diagnostic error (Faulty transmitter)

F0603.EPS

If any of the error indications above appears on the display of the integral indicator or BT200, refer to Subsection 7.5.2 for corrective action.

j Verify and Change Transmitter Parameter

Setting and Values

The following parameters are the minimum settings required for operation. The transmitter has been shipped with these parameters. To confirm or change the values, see Subsection 7.3.3.

• Measuring range........See Subsection 7.3.3 (2)

• Operation mode.........See Subsection 7.3.3 (7)

6-1

IM 1C22J1-01E

6. OPERATION

6.2 Zero Point Adjustment

Adjust the zero point after operating preparation is completed.

IMPORTANT

Do not turn off the power to the transmitter immediately after a zero adjustment. Powering off within 30 seconds after a zero adjustment will return the adjustment back to the previous settings.

The zero point adjustment can be made in either way: using the zero-adjustment screw of the transmitter or the BT200 operation.

For output signal checking, display the parameter A10: OUTPUT (%) in the BT200.

dBT200

PARAM A10:OUTPUT(%)

0.0 % A11:ENGR OUTPUT

A20:AMP TEMP

DATA DIAG PRNT ESC

Output signal (%) display

6.2.1 When you can obtain Low Range

Value from actual measured value of 0% (0 kPa, atmospheric pressure);

For pressure measurement using gauge pressure transmitters, follow the step below before zero point adjustment.

1) Close the tap valve (main valve).

2) Loosen the fill plug so that the pressure applied to

the transmitter is only the head of the seal liquid.

3) Adjust the zero point at this status.

4) After the adjustment, close the fill plug and then

gradually open the tap valve.

j Using the Transmitter Zero-adjustment

Screw

Before adjusting a screw, check that the parameter J20: EXT ZERO ADJ displays ENABLE. See Subsection 7.3.3 (11) for the setting procedure.

Use a slotted screwdriver to turn the zero-adjustment screw. 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. Since the degree of zero

adjustments varies with the screw turning speed, turn the screw slowly for fine adjustment and quickly for coarse adjustment.

dZero-adjustment Screw

Zero-adjustment screw

F0604.EPS

After reviewing this parameter you are prepared to adjust the zero point. When making the zero adjustment on a pressure transmitter, the process pressure value does not have to be set to the low limit of the measurement range (0%). In such case, adjust the transmitter output signal to the actual measured value obtained from a high-accuracy pressure measuring instrument.

j Using the BT200

Zero point can be adjusted by simple key operation of the BT200.

Select parameter J10: ZERO ADJ, and press the ENTER key twice. The zero point will be adjusted automatically to the output signal 0% (4 mA DC). Confirm that the setting value displayed for the parameter is ‘0.0%’ before pressing the ENTER key. See Subsection 7.3.3 (11) for BT200 operating procedures.

SET J10:ZERO ADJ –0.0 % + 000.0

CLR ESC

A display when parameter J10 is selected. Press key twice for 0% output 4 mA DC.

F0605.EPS

6-2

IM 1C22J1-01E

6. OPERATION

NOTE

6.2.2 When you cannot obtain Low Range Value from actual measured value of 0%;

Convert the actual measured value obtained by a digital manometer or a glass gauge into %.

[Example]

The measuring range of 50 to 250 kPa; the actual measured value of 130 kPa.

Actual measured value= 3100=40.0%

j Using the Transmitter Zero-Adjustment

Screw

Turn the screw to match the output signal to the actual measured value in %.

j Using the BT200

Select the parameter J10: ZERO ADJ. Change the set point (%) displayed for the parameter to the actual measured value (%), and press the ENTER key twice. See Subsection 7.3.3 (11) for operation details.

SET J10:ZERO ADJ –0.0 % + 000.0

CLR ESC

SET J10:ZERO ADJ –0.0 % + 040.0

130–50 250–50

A display at J10

Change setting to the actually measured value (40.0%). Press key twice for 40% output 10.4 mA DC.

6.3 Starting Operation

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

1) Confirm the operating status. There will be cases in which the output signal exhibits wide fluctuations (hunting) due to periodic variation in the process pressure. In such cases, BT200 operation can dampen the transmitter output signal. Confirm the hunting using a receiving instrument or the integral indicator, and set the optimum damping time constant. See Subsection

7.3.2 (3), “Damping Time Constant Setup.”

2) After confirming the operating status, perform the following.

IMPORTANT

• Remove the BT200 from the terminal box, and confirm that none of the terminal screws are loosened.

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

• Two covers are required to be locked on the CENELEC, SAA, and JIS 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 page 8-4) After locking, the covers shoud be confirmed not to be opened.

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

CLR ESC

F0606.EPS

6.4 Shutting Down Operation

Turn off the power.

Whenever shutting down the transmitter for a long period, detach the transmitter (diaphragm seals) from the tank.

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IM 1C22J1-01E

6. OPERATION

6.5 Setting the Range Using the Range-setting Switch

With actual pressure being applied to the transmitter, the range-setting switch (push-button) located on the optional integral indicator plate and the external zeroadjustment screw allow users to change (re-range) the low- and high-limit values for the measurement range (LRV and HRV) without using BT200. However, other changes in the display settings (scale range and engineering unit) for the integral indicator requires BT200.

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

[Example]

Rerange LRV to 0 and HRV to 3 MPa.

1) Connect the transmitter and apparatus as shown in

Figure 8.3.1 and warm up for at least five minutes.

2) Press the range-setting push-button.

The integral indicator then displays “LSET.”

3) Apply a pressure of 0 kPa (atmospheric pressure) to

the transmitter.

4) Turn the external zero-adjustment screw in the

desired direction. The integral indicator displays the output signal in %.

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 “HSET.”

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

8) Turn the external zero-adjustment screw in the

desired direction. The integral indicator displays the output signal in %.

9) Adjust the output signal to 100% (5 V DC) by

rotating the external zero-adjustment screw. Doing so completes the HRV 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.

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 HRV), the integral indicator may display error number “Er.07” (In this case, the output signal percent and “Er.07” are displayed alternately every two seconds). Although “Er.07” is displayed, you may proceed to the next step. However, should any other error number be displayed, take the appropriate measure in reference to Subsection 7.5.2, “Errors and Countermeasures.”

(Note 1)

(Note 2)

(Note 1)

(Note 2)

IMPORTANT

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

• Changing LRV automatically changes HRV to the following value.

HRV = previous HRV + (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

Note : Use a thin bar which

has a blunt tip, e.g., a hexagonal wrench, to press the rangesetting push-button

Range-setting switch (Push-button)

Figure 6.5.1 Range-setting Switch

F0607.EPS

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IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

The DPharp is equipped with BRAIN communications capabilities, so that range changes, Tag No. setup, monitoring of self-diagnostic results, and zero point adjustment can be handled by remote control via BT200 BRAIN TERMINAL or CENTUM CS console. This section describes procedures for setting parameters using the BT200. For details concerning the BT200, see IM 1C0A10-E, “BT200 User’s Manual.”

7.1 BT200 Operation Precau-

tions

7.1.1 Connecting the BT200

The transmitter and the BT200 can be connected either to the BT200 connection hooks in the transmitter terminal box or to a relaying terminal board.

Relaying terminals

Control room

Terminal board

7.2

BT200 Operating Procedures

7.2.1 Key Layout and Screen Display

Figure 7.2.1a shows the arrangement of the operating keys on the BT200 keypad, and Figure 7.2.1b shows the BT200 screen component.

LCD (21 character × 8 lines)

Function keys

Movement keys ENTER key

Power ON/OFF key

Alphanumeric keys

Distributor

F0701.EPS

Figure 7.1.1 Connecting the BT200

7.1.2 Conditions of Communication Line

Cable resistance Rc

Power supply

Load

resistance R

d Loop resistance = R + 2Rc

= 250 to 600 Ω

d Loop capacitance = 0.22 µF max.

Figure 7.1.2 Conditions of Communication Line

resistance Rc

Cable

DPharp

BT200

F0702.EPS

Figure 7.2.1a BT200 Key Layout

MENU SCREEN

MENU A:DISPLAY B:SENSOR TYPE

Screen title

HOME SET ADJ ESC

PARAMETER SCREEN

PARAM A10:OUTPUT

100.0 %

Parameters

Figure 7.2.1b BT200 Screen Component

A11:ENGR. OUTPUT 1000 mmH20 A20:AMP TEMP 23 deg C

DATA DI AG PRNT

7-1

BATTERY

Shift keys

Menu choices

IM 1C22J1-01E

F0703.EPS

Messages

Function

commands

F0704.EPS

7. BRAIN TERMINAL BT200 OPERATION

7.2.2 Operating Key Functions

(1) Alphanumeric Keys and Shift Keys

You can use the alphanumeric keys in conjunction with the shift keys to enter symbols, as well as alphanumeric keys.

Alphanumeric keys

Shift keys

a. Entering Digits, Symbols, and Spaces

Simply press the alphanumeric keys.

Entry Key-in Sequence

–4

0.3

1 –9

b. Entering Letters (A through Z)

Press an alphanumeric key following a shift key to enter the letter shown on that side which the shift key represents. You must press the shift key before entering each letter.

Left-side letter on the alphanumeric key

Entry Key-in Sequence

W IC J. B

Use the function key [F2]

Right-side letter on the alphanumeric key

CAPS

to select between uppercase and lowercase (for letters only). The case toggles between uppercase and lowercase each time you press [F2] CAPS.

Entering uppercase

CODE CAPS CLR ESC

Entry

Boy

( B ) ( y )( o )

Entering lowercase

CODE caps CLR ESC

Key-in Sequence

to lower case

F0705.EPS

T0701.EPS

F0706 .EPS

T0702.EPS

F0707.EPS

Use the function key [F1]

CODE

to enter symbols. The following symbols will appear in sequence, one at a time, at the cursor each time you press [F1] CODE:

/ . – , + * ) ( ’ & % $ # ” ! To enter characters next to these symbols, press [ > ] to move the cursor.

Entry

symbol command

l/m

Key-in Sequence

( / )

( m )( I )

T0703.EPS

(2) Function Keys

The functions of the function keys depend on the function commands on display.

MENU A:DISPLAY B:SENSOR TYPE

HOME SET ADJ ESC

Function commands

Function keys

F0708.EPS

Function Command List

Command Function

ADJ Displays the ADJ menu

CAPS/caps

CODE

CLR

DATA

DEL

DIAG

ESC

HOME

PARM

SET

SLOT

UTIL *COPY *FEED

*LIST

*PON/POFF

*PRNT

*GO

*STOP

* Available on BT200-P00 (with printer).

Selects uppercase or lowercase Selects symbols Erases input data or deletes all data Updates parameter data Deletes one character Calls the self-check panel Returns to the most recent display Displays the menu panel Quits setup and returns to the previous display Proceeds to the next panel Enters the parameter number setup mode Displays the SET menu Returns to the slot selection panel Calls the utility panel Prints out parameters on display Paper feed Lists all parameters in the menu Automatic printout mode on or off Changes to the print mode Starts printing Cancels printing

T0704.EPS

7-2

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

7.2.3 Calling Up Menu Addresses Using the Operating Keys

STARTUP SCREEN

INITIAL DATA SCREEN

MENU SCREEN

––WELCOME–– BRAIN TERMINAL ID: BT200

check connection push ENTER key

UTIL FEED

UTILITY

1.ID

2.SECURITY CODE

3.LANGUAGE SELECT

4.LCD CONTRAST

5.PRINTER ADJUST

The utility screen contains the following items.

1. BT200 ID settings

2. Security code settings

3. Switching language of messages (Japanese or English)

esc

4. LCD contrast setting

(UTIL)

PARAM 01:MODEL EJA438W-DA 02:TAG NO. YOKOGAWA 03:SELF CHECK GOOD

(ESC)

(SET)

(HOME MENU SCREEN) (SET MENU SCREEN) (ADJ MENU SCREEN)

MENU A.DISPLAY B.SENSOR TYPE

HOME SET ADJ ESC

MENU C.SETTING D.AUX SET 1 E.AUX SET 2 H:AUTO SET

HOME SET ADJ ESC

5. Adjusting printout tone (BT200-P00 only)

FUNC

1.MENU

2.UPLOAD TO BT200

3.DOWNLOAD TO INST

4.PRINT ALL DATA

HOME SET ADJ ESC

(ADJ)

MENU J.ADJUST K.TEST M.MEMO P:RECORD

HOME SET ADJ ESC

PARAMETER SCREEN

SETUP SCREEN

PARAM A60:SELF CHECK GOOD

PARAM A21:CAPSULE TEMP

26.5 deg C

DATA DIAG PRNT ESC

PARAM A10:OUTPUT(%)

50.0 % A11:ENGR, OUTPUT

20.0 M A20:AMP TEMP

24.5 deg C

DATA DIAG PRNT ESC

SET C10:TAG NO. YOKOGAWA YOKOGAWA

CODE CAPS CLR ESC

PARAM C60:SELF CHECK GOOD

PARAM C22:HIGH RANGE 100 kPa

DATA DIAG PRNT ESC

PARAM C10:TAG NO. YOKOGAWA C20:PRESS UNIT kPa C21:LOW RANGE 0 kPa

DATA DIAG PRNT ESC

See “BT200 Instruction Manual” for details concerning uploading and downloading parameters and printouts (BT200-P00).

PARAM J60:SELF CHECK GOOD

PARAM J10:ZERO ADJ

0.0 %

DATA DIAG PRNT ESCDATA DIAG PRNT ESC DATA DIAG PRNT ESC

J11:ZERO DEV

22.2 %

J20:EXT. ZERO ADJ ENABLE

DATA DIAG PRNT ESC

F0709.EPS

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IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

7.3 Setting Parameters Using the BT200

7.3.1 Parameter Summary

Instruments to which applicable: F: Differential pressure transmitters EJA110, EJA120, EJA118W, EJA118N, EJA118Y, and EJA115 P: Pressure transmitters EJA310, EJA430, EJA438W, and EJA438N L: Liquid level transmitters EJA210 and EJA220

No. Description

01 02 03 SELF CHECK

Item

MODEL

TAG NO.

Model+capsule type Tag number Self-diagnostic result Measured data displayA Output (in %)A10 OUTPUT (%)

A11 ENGR.

OUTPUT

units)

TEMP PRESS

A40 INPUT A60 SELF CHECK

engineering DP unit) Self-diagnostic

messages

Rewrita-

bility

—

Remarks

16 alphanumerics GOOD/ERROR Menu nameDISPLAY –5 to 110%

–19999 to 19999Output (in engineering Unit specified in D30Amplifier temperatureA20 AMP TEMP

Unit specified in D30Capsule temperatureA21 CAPSULE Unit specified in D31*Static pressureA30 STATIC

–32000 to 32000Input (indicated in GOOD/ERROR, CAP MODULE

FAULT, AMP MODULE FAULT, OUT OF RANGE, OUT OF SP RANGE*, OVER TEMP (CAP), OVER TEMP (AMP), OVER OUTPUT, OVER DISPLAY, ILLEGAL LRV, ILLEGAL HRV, ILLEGAL SPAN, and ZERO ADJ OVER

TYPE

B40

MAX STAT.P.

B60 SELF CHECK

C20 PRESS UNIT

C21 LOW RANGE

C22 HIGH

RANGE

DAMPING

C40 OUTPUT

MODE

C60 Same as A60SELF CHECK

Sensor typeB

Model+spanB10 MODEL Style numberB11 STYLE NO.

Upper range-limitB21 URL

Maximum atatic pressure

Self-diagnostic

messages Setting dataC Tag numberC10 TAG. NO. Measurement range

units

Measurement range, lower range value Measurement range, higher range value Damping time constantC30 AMP

Output mode and integral indicator mode

Self-diagnostic messages

Auxiliary setting data 1D Menu nameAUX SET 1 Low cutD10 LOW CUT

Low cut modeD11 LOW CUT

Menu nameSENSOR

—

16 uppercase alphanumerics

— —

–32000 to 32000Lower range-limitB20 LRL

— —

–32000 to 32000 –32000 to 32000Minimum spanB30 MIN SPAN

— —

Same as A60

—

Menu nameSETTING

—

16 alphanumerics Selected from mmH

mmWG, mmHg, Torr, Pa, hPa, kPa,

MPa, mbar, bar, gf/cm inH

O, inHg, ftH2O, psi, or atm

–32000 to 32000(but within measurement range)

–32000 to 32000(but within measurement range) Selected from 0.2, 0.5, 1.0, 2.0,

4.0, 8.0, 16.0, 32.0, or 64.0 sec. Selected from OUT:LIN; DSP:LIN,

OUT:LIN; DSP:SQR, OUT:SQR; DSP:SQR

—

0.0 to 20.0% LINEAR/ZERO

O, mmAq,

, kgf/cm2,

As specified when ordered. As specified when ordered.

As specified when ordered.

2 s

As specified when ordered. If not specified, OUT: LIN; DSP: LIN.

MODE

Display selectionD20 DISP SELECT

NORMAL %/USER SET, USER & %/INP PRES, PRES & %

* In case of Model EJA120, static pressure cannot be measured. The display is always 0 MPa, but

this is not a measured value.

7-4

Default Value

Applica-

bility

T0705.EPS

IM 1C22J1-01E

PLF

—

7. BRAIN TERMINAL BT200 OPERATION

T0706.EPS

Auxiliary setting data 1D Menu nameAUX SET 1

—

NORMAL/REVERSE NORMAL/REVERSE**

Output reversalD40 REV OUTPUT Impulse piping

accessing direction

D45 H/L SWAP

—

HIGH/LOWCPU errorD52 BURN OUT

–19999 to 19999Engineering range,

lower range value

D22 DISP LRV

–19999 to 19999Engineering range,

higher range value

D23 DISP HRV

deg C/deg FTemperature setting

units

D30 TEMP UNIT

Selected from mmH2O, mmAq, mmWG, mmHg, Torr, Pa, hPa, kPa, MPa, mbar, bar, gf/cm

, kgf/cm2,

inH2O, inHg, ftH2O, psi, or atm

Static pressure setting units

D31 STAT. P. UNIT

Hardware errorD53

Same as A60

HOLD/HIGH/LOWERROR OUT

Self-diagnostic messages

—

D60 SELF CHECK

Auxiliary setting data 2E

OFF/ON

Menu nameAUX SET 2

Bidirectional modeE30 BI DIRE

MODE

Same as A60Self-diagnostic

messages

E60 SELF CHECK

—

No. Description RemarksItem

Menu nameAutomatic setupH AUTO SET

—

Adjustment dataJ

–5 to 110.0%

Menu nameADJUST

Automatic zero adjustment

J10 ZERO ADJ

—

Manual zero adjustment

J11 ZERO DEV.

ENABLE/INHIBITExternal zeroadjustment screw permission

J20 EXT. ZERO

ADJ

Same as A60Self-diagnostic messages

J60 SELF CHECK

Display the error

History of the errorsRECORD Last errorP10

P11

ERROR REC 1

Display the errorOne time beforeERROR REC 2

P12 Display the errorTwo time beforeERROR REC 3

Menu nameTestsK TEST

–5 to 110.0% Displays ‘ACTIVE’

while executing

Test output % settingK10 OUTPUT in %

Same as A60Self-diagnostic

messages

K60 SELF CHECK

Menu nameMemoM

MEMO

8 uppercase alphanumericsMemoM10 MEMO 1

8 uppercase alphanumericsMemoM20 MEMO 2

8 uppercase alphanumerics

P13 Display the errorThree time beforeERROR REC 4 P60 Same as A60Self-diagnostic

messages

SELF CHECK

MemoM30 MEMO 3

8 uppercase alphanumericsMemoM40 MEMO 4

8 uppercase alphanumericsMemoM50 MEMO 5

Same as A60Self-diagnostic messages

M60 SELF CHECK

–32000 to 32000Automatic measurement range lower range value setup

H10 AUTO LRV

–32000 to 32000Automatic measurement range higher range value setup

H11 AUTO HRV

———

—

Same as A60Self-diagnostic messages

H60 SELF CHECK

Applica-

bility

PLF

8 uppercase

alphanumerics

Engineering unit for display

D21 DISP UNIT

As specified when ordered. As specified when ordered.

deg C As specified when ordered.

If not specified, MPa.

If not specified, NORMAL. NORMAL

HIGH HIGH

OFF

Displays the same data as C21.

Displays the same data as C22.

Rewrita-

bility

Default Value

** Not applicable for Model EJA115.

7-5

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

7.3.2 Parameter Usage and Selection

Before describing the procedure for setting parameters, we present the following table showing how the parameters are used and in what case.

Table 7.3.1 Parameter Usage and Selection

Setup Item Description

Tag No. setup c P.7-7

Calibration range setup c P.7-7

Damping time constant setup c P.7-8

Output signal low cut mode setup c P.7-9

Integral indicator scale range and unit setup c P.7-9

Unit setup for displayed temperature c P.7-11

Operation mode (normal/reverse signal) setup c P.7-11

Output status display/setup when a CPU failure c P.7-11

Output status setup when a hardware error occurs c P.7-11

Range change (while applying actual inputs) c P.7-12

Zero point adjustment c P.7-12

Test output (fixed current output) setup c P.7-14

User memo fields c P.7-14

Sets the Tag No. (using 16 alphanumeric characters). Note: Up to 8 alphanumerics (upper case letters) can be used in the BT100.

Sets the calibration range for 4 to 20 mA DC. Sets three data items: range unit, input value at 4 mA DC (LRV), and input value at 20 mA DC (HRV).

Note: LRV and HRV can be specified with range value specifications up to 5 digits

(excluding any decimal point) within the range of –32000 to 32000.

Adjusts the output response speed for 4 to 20 mA DC. Can be set in 9 increments from 0.2 to 64 s.

Used to stabilize output near 0%: forcing output to 0% for input below a specific value. Sets the following 5 types of integral indicator scale ranges and units:

% scale indicator, user set scale indicator, alternate indication of user set scale

and % scale, input pressure display, alternate indication of input pressure and % scale When using the user set scale, 4 types of data can be set: user set scale setting, unit (BT200 only), display value at 4 mA DC (LRV), and display value at 20 mA DC (HRV).

Note: LRV and HRV can be specified with range value specifications up to 5

digits (excluding any decimal point) within the range of –19999 to 19999.

Sets a unit for temperatures displayed on the BT200.

Reverses the direction for 4 to 20 mA DC output relative to input. Reverse mode is used for applications in which safety requires that output be driven toward 20 mA if input is lost.

Displays the status of 4 to 20 mA DC output when a CPU failure. The parameter of the standard unit is fixed to the high limit value.

Sets the status of the 4 to 20 mA DC output when an abnormal status is detected with the capsule or the amplifier as the result of self-diagnosis. One of the following statuses; last held, high limit, and low limit values, can be selected.

Range for 4 to 20 mA DC signal is set with actual input applied. Sets 20 mA DC output precisely with respect to user’s reference instrument output. Note that DPharp is calibrated with high accuracy before shipment, so span should be set using the normal range setup.

Adjusts zero point. This can be done either using the external zero-adjustment screw on the transmitteror using the BT200.

Used for loop checks. Output can be set freely from –5% to 110% in 1% steps.

Allows user to enter up to 5 items of any desired text in up to 8 uppercase alphanumeric characters per item.

IMPORTANT

If the transmitter is turned off within 30 seconds after parameters have been set, the set data will not be stored and the terminal returns to previous settings.

T0707.EPS

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IM 1C22J1-01E

7.3.3 Setting Parameters

SET C10:TAG NO. FIC-1a

FEED NO OK

DATA DIAG PRNT ESC

This is the panel for confirming set data. The set data items flash. When all items have been confirmed, press the again. (To go back to the setting panel, press the (NO) key.

SET C10:TAG NO. YOKOGAWA FIC-1a

PRINTER OFF F2:PRINTER ON

PARAM C10:TAG NO. FIC-1a C20:PRESS UNIT kPa C21:LOW RANGE 0 kPa

FEED POFF NO

The DPharp TAG NO. was overwritten. Press the (OK) key to return to the parameter panel. Press the (NO) key to return to the setting panel.

F0711.EPS

mmH2O mmAq

mmWG mmHg Torr

kPa MPa

mbar bar gf/cm

kgf/cm

inH2O inHg ftH

O psi atm Pa hPa

• Example: Change the unit from mmH2O to kPa.

ESC

SET C20:PRESS UNIT kPa

FEED NO OK

SET C20:PRESS UNIT mmH20 < mmWG > < mmHG > < Torr > < kPa >

Use the or key to select “kPa.” Press the key twice to enter the setting.

Press the (OK) key.

F0712.EPS

Set or change the parameters as necessary. After completing these, do not fail to use the “DIAG” key to confirm that “GOOD” is displayed for the selfdiagnostic result at _60: SELF CHECK.

(1) Tag No. Setup (C10: TAG NO)

Use the procedure below to change the Tag No. Up to 16 alphanumeric characters can be entered.

• Example: Set a Tag No. to FIC-1a

Press the key to turn on the BT200.

7. BRAIN TERMINAL BT200 OPERATION

––WELCOME–– BRAIN TERMINAL ID: BT200

check connection push ENTER key

UTIL FEED

PARAM 01:MODEL EJA438W-DA 02:TAG NO. YOKOGAWA 03:SELF CHECK GOOD

MENU A:DISPLAY B:SENSOR TYPE

HOME SET ADJ ESC

MENU C:SETTING D:AUX SET 1 E:AUX SET 2 H:AUTO SET

HOME SET ADJ ESC

MENU C10:TAG NO. YOKOGAWA C20:PRESS UNIT kPa C21:LOW RANGE 0 kPa

DATA DIAG PRNT ESC

SET C10:TAG NO. YOKOGAWA YOKOGAWA

CODE CAPS CLR ESC

SET C10:TAG NO. YOKOGAWA FIC-1a _

CODE caps CLE ESC

When you have made an entry mistake, return the cursor using the key, then reenter.

Connect DPharp and BT200 using a communication cable and press the key.

Displays the name of connected DPharp model, TAG NO. and diagnostics information. Press the (OK) key after confirmation.

Press the (SET) key to display the SET menu panel.

Select C: SETTING and press the key.

Select C10: TAG NO. and press the key.

Set the new TAG NO. (FIC-1a).

Set TAG NO. and press the key.

FOKOGAWA FIKOGAWA FICOGAWA FIC-GAWA FIC-1AWA

FIC-1aWA FIC-1a

F0710.EPS

(2) Calibration Range Setup a. Setting Calibration Range Unit

(C20: PRESS UNIT)

The unit is set at the factory before shipment if specified at the time of order. Follow the procedure below to change the unit.

7-7

IM 1C22J1-01E

b. Setting Calibration Range Lower

• Example 2: With present settings of 0 to 30 kPa, set the Higher range value to10 kPa.

FEED NO OK

SET C22:HIGH RANGE 10 kPa

DATA DIAG PRNT ESC

PARAM C20:PRESS UNIT kPa C21:LOW RANGE 0 kPa C22:HIGH RANGE 10 kPa

DEL CLR ESC

SET C22:HIGH RANGE 30 kPa + 10

The low range value is not changed, so the span changes.

Set 10. Press the key twice to enter the setting.

F0714.EPS

Press the (OK) key.

Range Value and Higher Range Value (C21: LOW RANGE, C22: HIGH RANGE)

These range values are set as specified in the order before the instrument is shipped. Follow the procedure below to change the range.

• The measurement span is determined by the high and low range limit values. In this instrument, changing the low range value also automatically changes the high range value, keeping the span constant.

• Example 1: With present settings of 0 to 30 kPa, set the lower range value to 0.5 kPa.

7. BRAIN TERMINAL BT200 OPERATION

SET C21:LOW RANGE 0 kPa + 0.5

Set 0.5. Press the key twice to enter the setting.

DEL CLR ESC

SET C21:LOW RANGE

0.5 kPa

FEED NO OK

SET C20:PRESS UNIT kPa C21:LOW RANGE

0.5 kPa C22:HIGH RANGE

30.5 kPa

DATA DIAG PRNT ESC

Press the (OK) key.

The higher range value is changed while the span remains constant.

Span = Higher range value – Lower range value

• Note, however, that changing the higher range value does not cause the lower range value to change. Thus, changing the higher range value also changes the span.

• Calibration range can be specified with range value specifications up to 5 digits (excluding any decimal point) for low or high range limits within the range of –32000 to 32000.

F0713.EPS

(3) Damping Time Constant Setup

(C30: AMP DAMPING)

When the instrument is shipped, the damping time constant is set at 2.0 seconds. Follow the procedure below to change the time constant.

• Example: Change from 2.0 sec to 4.0 sec.

SET C30:AMP DAMPING

2.0 sec < 2.0 sec > < 4.0 sec > < 8.0 sec > < 16.0 sec >

SET C30:AMP DAMPING

4.0 sec

FEED NO OK

0.2sec

0.5sec

1.0sec

2.0sec

4.0sec

8.0sec

16.0sec

32.0sec

64.0sec

Note: The damping time constant set here is the damping time

constant for the amplifier assembly. The damping time constant for the entire transmitter is the sum of the values for the amplifier assembly and for the capsule assembly. For the capsule assembly damping time constant (fixed), see the “General Specifications” found at the end of this manual. (See Chapter 9.)

Use the or key to select 4.0 sec. Press the key twice to enter the setting.

ESC

Press the (OK) key.

F0715.EPS

7-8

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

(4) Output Signal Low Cut Mode Setup

(D10: LOW CUT, D11: LOW CUT MODE)

Low cut mode can be used to stabilize the output signal near the zero point. The low cut point can be set in a range from 0 to 20% of output. (Hysteresis of cut point: ±1%)

Select “ZERO” as the low cut mode.

d LOW CUT mode ZERO at 10%

(%)

Output

Input(%)

F0716.EPS

• Example: Change the low cut setting range from 5% to 10%, and the low cut mode from LINEAR to ZERO.

SET D10:LOW CUT

5.0 % + 10.0

CLR ESC

SET D10:LOW CUT

10.0 %

FEED NO OK

SET C11:LOW CUT MODE LINEAR < LINEAR > < ZERO >

SET D11:LOW CUT MODE ZERO

Set “10.” Press the key twice to enter the setting.

Press the (OK) key. Next, the [D11: LOW CUT MODE] setting panel is displayed.

Use the or key to select ZERO. Press the key twice to

ESC

enter the setting. Press the (OK) key.

(5) Integral Indicator Scale Setup

The following 5 displays are available for integral indicators.

D20: DISP SELECT

and Display

NORMAL %

Indicates –5 to 110% range depending on the Measurement range (C21, C22).

USER SET

Indicates values depending on the Engineering range (D22, D23). Units set using Engineering unit (D21) are not indicated.

USER & %

Indicates user set and % alternately in 3 second intervals.

INP PRES

Indicates input pressure. Indication limits –19999 to 19999.

PRES & %

Indicates input pressure and % alternately in 3 second intervals.

(Note 1) Scale range can be specified with range limit specifications up

to 5 digits (excluding any decimal point) for low or high range limits within the range of –19999 to 19999.

Description

and Related parameters

A10:OUTPUT (%)

45.6 %

(Note 1)

A11:ENGR.OUTPUT

20.0 M

A10:OUTPUT (%)

45.6 %

A11:ENGR. OUTPUT

20.0 M

A40:INPUT

456 kPa

A10:OUTPUT (%)

45.6 %

A40:INPUT

456 kPa

T0708.EPS

See (a.) through (c.) for each setting procedure.

FEED NO OK

PARAM D10:LOW CUT

10.0 % D11:LOW CUT MODE ZERO D20:DISP SELECT NORMAL %

DATA DIAG PRNT ESC

F0717.EPS

7-9

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

% indication and input pressure

User-set engineering unit display

indication

D20: DISP SELECT NORMAL % INP PRES PRES & %

Transmitter is set for “% display” when shipped.

D20: DISP SELECT USER SET USER & %

Set for user-set engineering unit display.

D21: DISP UNIT

Set a unit to be displayed on the BT200.

D22: DISP LRV

Set a numeric value for engineering unit for 4 mA output (LRV).

D23: DISP HRV

Set a numeric value for engineering unit for 20 mA output (HRV).

F0718.EPS

a. Display Selection (D20: DISP SELECT)

Follow the instructions given to the below to change the range of integral indication scales.

When USER SET is selected, the user set values of integral indication and A11: ENGR. OUTPUT parameter are indicated.

b. Setting User-set Engineering Unit

(D21: DISP UNIT)

This parameter allows entry of the engineering units to be displayed on the BT200. When the instrument is shipped, this is set as specified in the order.

Follow the procedure below to change this setting. Since these units are not displayed on the integral

indicator, use the adhesive labels provided. This parameter need not be set for % display.

• Example: Set an engineering unit M.

SET D21:DISP UNIT

CODE CAPS CLR ESC

SET D21:DISP UNIT M

FEED NO OK

Set “M.” Press the key twice to enter the setting.

Press the (OK) key.

F0720.EPS

c. Lower and Higher Range Value Setup

in Engineering Unit (D22: DISP LRV, D23: DISP HRV)

These parameter items are used to set the lower and higher range values for the engineering unit display.

When the instrument is shipped, these are set as specified in the order. Follow the procedure below to change these settings. Note that these parameters need not be set for % display.

• Example: Set lower range value (LRV) to –50 and higher range value (HRV) to 50.

• Example: Set the integral indicator scale to engineering units display.

SET D20:DISP SELECT NORMAL % <NORMAL %> <USER SET> <USER & %> <INP PRES>

SET D20:DISP SELECT USER SET

FEED NO OK

Use the or key to select “USER SET.” Press the key twice to

ESC

enter the setting.

Press the (OK) key.

The “%” disappears from the

integral indicator display.

F0719.EPS

7-10

Setting LRV

SET D22:DISP LRV 0M

- 50

DEL CLR ESC

Setting HRV

SET D23:DISP HRV 100M + 50

DEL CLR ESC

SET D23:DISP HRV 50M

FEED NO OK

PARAM D21:DISP UNT M D22:DISP LRV – 50M D23:DISP HRV 50M

DATA DIAG PRNT ESC

Set “–50.” Press the key twice to enter the setting.

Set “50.” Press the key twice to enter the setting.

Press the (OK) key.

F0721.EPS

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

• Example: Standard specifications

pin (CN4) position: H

D52: BURN OUT

HIGH

F0724.EPS

• Example: Optional code/C1

pin (CN4) position: L

D52: BURN OUT

LOW

(6) Unit Setup for Displayed Temperature

(D30: TEMP UNIT)

When the instrument is shipped, the temperature units are set to degC. Follow the procedure below to change this setting. Note that changing the unit here changes the unit for A20: AMP TEMP (amplifier temperature) and A21: CAPSULE TEMP (capsule temperature).

• Example: Change the unit for the temperature display.

SET D30:TEMP UNIT deg C < deg C > < deg F >

Use the or key to select “deg F.” Press the key twice to

ESC

enter the setting.

F0722.EPS

(7) Operation Mode Setup

(D40: REV OUTPUT)

This parameter allows the direction of the 4 to 20 mA output to be reversed with respect to input. Follow the procedure below to make this change.

(8) Output Status Display/Setup when a CPU

Failure (D52: BURN OUT)

This parameter displays the status of 4 to 20 mA DC output if a CPU failure occurs. In case of a failure, communication is disabled.

Setting of HIGH or LOW is enabled. This is done with the pin (CN4) on the CPU assembly. See Chapter 3 for details.

Standard specifications The parameter is set to HIGH. If a failure, the transmitter outputs the signal of 110% or higher. The parameter D53: ERROR OUT is set to HIGH from the factory.

Optional code/C1 The parameter is set to LOW. If a failure, output which is –5% or lower is generated. The parameter D53: ERROR OUT is set to LOW from the factory.

• Example: Change 4 to 20 mA output to 20 to 4 mA output.

SET D40:REV OUTPUT NORMAL < NORMAL > < REVERSE>

Use the or key to select REVERSE. Press the key twice to

ESC

enter the setting.

F0723.EPS

(9) Output Status Setup when a Hardware

Error Occurs (D53: ERROR OUT)

This parameter allows the setting of the output status when a hardware error occurs. The following three selections are available.

(a) HOLD; Outputs the last value held before the

error occurred.

(b) HIGH; Outputs an output of 110% when an error

has occurred.

Note: A hardware error means CAP MODULE FAULT of Er.01 or

AMP MODULE FAULT of Er. 02 which are shown in 7.5.2 “Errors and Countermeasures.”)

• Example: Set the output status to LOW when a hardware error occurs.

SET D53:ERROR OUT HIGH < HIGH> < LOW> < HOLD>

Use the or key to select “LOW.” Press the key twice to

ESC

enter the setting.

F0725.EPS

7-11

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

(10) Range Change while Applying Actual

Inputs (H10: AUTO LRV, H11: AUTO HRV)

This feature allows the lower and higher range values to be set up automatically with the actual input applied. If the lower and higher range values are set, C21: LOW RANGE and C22: HIGH RANGE are changed at this same time.

Follow the procedure in the figure below. The measurement span is determined by the higher and lower range values. Changing the lower range value results in the higher range value changing automatically, keeping the span constant.

• Example 1: When changing the lower range value to 0.5 kPa for the present

setting of 0 to 30 kPa, take the following action with input pressure of 0.5 kPa applied.

SET H10:AUTO LRV 0 kPa + 0

SET H10:AUTO LRV

0.5000 kPa

FEED NO OK

PARAM H10:AUTO LRV

0.5000 kPa H11:AUTO HRV

30.500 kPa H60:SELF CHEC GOOD

DATA DIAG PRNT ESC

Press the key twice. The lower range value is changed to 0.5 kPa.

ESC

Press the (OK) key.

The higher range value is changed keeping the span constant. Parameters C21 and C22 are changed at the same time.

F0726.EPS

Note that changing the higher range value does not cause the lower range value to change but does change the span.

• Example 2: When the higher range value is to be changed to 10 kPa with the

present setting of 0 to 30 kPa, take the following action with an input pressure of 10 kPa applied.

SET H10:AUTO HRV 30 kPa + 30

SET H11:AUTO HRV

10.000 kPa

FEED NO OK

PARAM H10:AUTO LRV 0 kPa H11:AUTO HRV

10.000 kPa H60:SELF CHECK GOOD

DATA DIAG PRNT ESC

Press the key twice. The higher range value is changed to 10 kPa.

ESC

Press the (OK) key.

The lower range value is not changed, so the span changes. Parameter C22 is changed at the same time.

F0727.EPS

(11) Zero Point Adjustment

(J10: ZERO ADJ, J11: ZERO DEV, J20: EXT ZERO ADJ)

The DPharp supports several adjustment methods. Select the method best suited for the conditions of your application. Note that output signal can be checked by displaying parameter A10:OUTPUT (%) on the BT200.

Adjustment Method Description

Using the BT200 Set the present input to 0%.

Adjust for 0% output at input level of 0%.

Adjust output to the reference value obtained using other means.

If the input level cannot easily be made 0% (because of tank level, etc.), adjust output to the reference value obtained using other means, such as a sight glass.

Using the external zero-adjustment screw

Adjust zero point using the zeroadjustment screw on the transmitter. This permits zero adjustment without using the BT200. Accurately adjust the output current to 4 mA DC or other target output value using an ammeter that accuratly reads output currents.

T0709.EPS

7-12

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

ECS

ESC

SET J11:ZERO DEV.

2.50 % 0

Since “J11: ZERO DEV.” contains the previous correction, obtain the correction value by adding –1.0% to it. 2.50% + (–1.0%) = 1.50%

Set the correction value, 1.50. Press the key twice.

F0730.EPS

Present output is 41.0%. Output error = 40.0 – 41.0 = –1.0%.

A10:OUTPUT (%)

41.0 %

The output is changed to 40%.

A10:OUTPUT (%)

40.0 %

SET J11:ZERO DEV.

2.50 %

1.50

(a) Follow the procedure below when setting the

present output to 0% (4 mA).

A10:OUTPUT (%)

0.5 %

SET J10:ZERO ADJ

0.0 % + 000.0

CLR ESC

SET J10:ZERO ADJ

0.0 %

FEED NO OK

A10:OUTPUT (%)

0.0 %

Output is 0.5%.

Press the key twice.

Zero adjustment is completed. Press the (OK) key.

Output is 0%.

(b) In tank level measurement, if the actual level

cannot be brought to zero for zero adjustment, then the output can be adjusted to correspond to the actual level obtained using another measuring instrument such as a glass gauge.

(b)-2 Follow the procedure below to use J11: ZERO

DEV.

F0728.EPS

Adjustment Screw

• Enabling/inhibiting of zero point adjustment using the external zero-adjustment screw on the transmitter (J20: EXT ZERO ADJ)

[Example]

Measurement range: 50 to 250 kPa, Actual value: 130 kPa.

Actual value

x 100

Actual

value(%)

–Measurement range lower range value

Measurement range higher range value

–Measurement range lower range value

130–50

= x 100=40.0%

250–50

(b)-1 Follow the procedure below to use J10: ZERO

ADJ.

A10:OUTPUT (%)

41.0 %

SET J10:ZERO ADJ

0.0 % + 040.0

CLR ESC

A10:OUTPUT (%)

40.0 %

Present output is 41.0%.

Enter the present actual level, 40%. Press the key twice.

The output is changed to 40%.

F0729.EPS

Follow the procedure below to enable or inhibit zero point adjustment from the zero-adjustment screw on the transmitter. This is set to “ENABLE” when the instrument is shipped.

• Example: Inhibiting zero adjustment by the

external zero-adjustment screw

SET J20:EXIT ZERO ADJ ENABLE < ENABLE > < INHIBIT>

Use the or key to select “INHIBIT.” Press the key twice to

ESC

enter the setting.

F0731.EPS

• Zero point adjustment using external zero-adjustment screw on the transmitter

Turn the zero-adjustment screw on the outside of the transmitter case using a slotted screwdriver. Turn the screw to the right to increase the zero point or to the left to decrease the zero output; the zero adjusts in increments of 0.01% of the range setting. Note that the amount of adjustment to the zero point changes according to the speed at which the screw is turned. To make fine adjustments, turn the screw slowly; to make coarse adjustments, turn the screw quickly.

Note: When a zero point adjustment has been made, do not turn

off the transmitter less than 30 seconds after adjustment.

7-13

IM 1C22J1-01E

7. BRAIN TERMINAL BT200 OPERATION

(12) Test Output Setup (K10: OUTPUT X%)

This feature can be used to output a fixed current from 3.2 mA (–5%) to 21.6 mA (110%) for loop checks.

• Example: Output 12 mA (50%) fixed current.

SET K10:OUTPUT X %

0.0 % + 050.0

SET K10:OUTPUT X %

50.0 % ACTIVE

FEED NO OK

Set “50.0%.” Press the key twice to output a fixed current at 50%.

ESC

“Active” is displayed while this is being executed. Press the (OK) key to cancel the fixed current output.

F0732.EPS

IMPORTANT

1. Test output is held for approximately 10 minutes, and then released automatically after the time has elapsed. Even if the BT200 power supply is turned off or the communication cable is disconnected during test output, it is held for approximately 10 minutes.

2. Press the (OK) key to release test output immediately.

7.4 Displaying Data Using the BT200

7.4.1 Displaying Measured Data

The BT200 can be used to display measured data. The measured data is updated automatically every 7

seconds. In addition, the display can be updated to the present data value at any time by pressing the (DATA) key. For parameters associated with the display of measured data, see Subsection 7.3.1, “Parameter Summary.”

• Example: Display output.

MENU A:DISPLAY B:SENSOR TYPE

HOME SET ADJ ESC

PARAM A10:OUTPUT (%) XX.X % A11:ENGR.OUTPUT YY.Y % A20:AMP TEMP ZZ deg C

DATA DIAG PRNT ESC

PARAM A10:OUTPUT (%)

A11:ENGR.OUTPUT A20:AMP TEMP

Display “A10: OUTPUT (%).”

Data is updated automatically

communi

at 7-second intervals.

F0734.EPS

(13) User Memo Fields (M: MEMO)

This feature provides 5 user memo fields, each holding up to 8 alphanumeric characters. Up to 5 items such as inspection date, inspector, and other information can be saved in these fields.

• Example: Save an inspection date of January 30, 1995.

PARAM M10:MEMO 1

M20:MEMO 2 M30:MEMO 3

DATA DIAG PRNT ESC

SET M10:MEMO 1

95.1.30_

Set “95.1.30” in the order of year, month, and day. Press the key twice to enter the setting.

ESC

F0733.EPS

7.4.2 Display Transmitter Model and Specifications

The BT200 can be used to display the model and specifications of the transmitter.

• Example: View transmitter model name.

MENU A:DISPLAY B:SENSOR TYPE

HOME SET ADJ ESC

PARAM B10:MODEL EJA438W-DA B11:STYLE NO. S1.01 B20:LRL – 98.07 kPa

DATA DIAG PRNT ESC

Press .

For the associated parameters, see Subsection

7.3.1, Parameter Summary.

F0735.EPS

7-14

IM 1C22J1-01E

7.5 Self-Diagnostics

• Example 3: Checking the history of the errors

Connect the BT200 to the transmitter, and call item “P.”

The history of up to four errors can be stored. When the 5th error has occurred, it is stored in “P10”. The error stored in “P13” will be deleted, and then, the error in “P12” will be copied to “P13”. In this sequence, the history of the most previously occurred error will be removed from memory. “GOOD” will be displayed if there was no previous error.

F0737.EPS

HOME SET ADJ ESC

MENU J:ADJUST K:TEST M:MEMO P:RECORD

DATA DIAG PRNT ESC

PARAM P10:ERROR REC 1 ERROR P11:ERROR REC 2 ERROR P12:ERROR REC 3 GOOD

For the details of the messages listed below, see Table

8.5.1 Error Message Summary.

ESC

SET P10:ERROR REC 1 ERROR < ERROR > < ILLEGAL LRV > < ILLEGAL HRV >

<(a) SETUP PANEL>

Note 1: Press the key twice in the setting panel

(panel 1) to clear all error message (P10 to P13) information.

Note 2: After two hours from when an error occurs, the error

message of that error will be recorded. Therefore, if you switch off the transmitter within two hours from when the error occurs, there is no history of that error stored in the transmitter, and this function is meaningless.

CAP MODULE FAULT AMP MODULE FAULT OUT OF RANGE OUT OF SP RANGE

OVER TEMP (CAP) OVER TEMP (AMP) OVER OUTPUT OVER DISPLAY

ILLEGAL LRV ILLEGAL HRV ILLEGAL SPAN ZERO ADJ OVER

P10: “ERROR REC 1” displays the last error. P11: “ERROR REC 2” displays the error one time before

the last error occurred.

P12: “ERROR REC 3” displays the error two times before

the last error occurred.

P13: “ERROR REC 4” displays the error three times before

the last error occurred.

Select P10: ERROR REC1 and press the key to display the error message.

7.5.1 Checking for Problems

(1) Identifying Problems with BT200

The following four areas can be checked. (a) Whether connections are good. (b) Whether BT200 was properly operated. (c) Whether settings were properly entered. (d) History of the errors. See examples below.

• Example 1: Connection errors

––WELCOME–– BRAIN TERMINAL ID: BT200

check connection push ENTER key

UTIL FEED

communication error

Press the key. When the panel shown on the left appears, press the key.

Since communications will be unsuccessful if there is a problem in the connection to the BT200, the

ESC

display at the left will appear. Recheck the connection. Press the (OK) key.

7. BRAIN TERMINAL BT200 OPERATION

• Example 2: Setting entry errors

PARAM 01:MODEL EJA438W-DA 02:DAG NO. YOKOGAWA 03:SELF CHECK ERROR

PARAM C20:PRESS UNIT kPa C21:LOW RANGE 600 kPa C22:HIGH RANGE 600 kPa

DATA DIAG PRNT ESC

DIAG C60:SELF CHECK ERROR < ERROR > < ILLEGAL LRV >

FEED PRNT ESC

The initial data panel shows the result of current transmitter diagnostics.

Press the (DIAG) key in the parameter panel to go to the diagnostics panel (C60: SELF CHECK). An error message is displayed when an error occurs in the diagnostics panel.

F0736.EPS

7-15

IM 1C22J1-01E

(2) Checking with Integral Indicator

NOTE

If an error is detected in the self-diagnostic, an error number is displayed on the integral indicator. If there is more than one error, the error number changes at two-second intervals. See Table 7.5.1 regarding the error numbers.

7. BRAIN TERMINAL BT200 OPERATION

F0738.EPS

Figure 7.5.1 Identifying Problems Using the Integral

Indicator

7-16

IM 1C22J1-01E

7.5.2 Errors and Countermeasures

The table below shows a summary of error messages.

Table 7.5.1 Error Message Summary

7. BRAIN TERMINAL BT200 OPERATION

Integral

Indicator

Display

None

---Er. 01

Er. 02

Er. 03

Er. 04

Er. 05

Er. 06

Er. 07

Er. 08

Er. 09

Er. 10

Er. 11

Er. 12

*1: For Model EJA120, static pressure cannot be measured. The display is always 0 MPa, but this is not a measured value.

BT200 Display Cause Countermeasure

GOOD ERROR CAP MODULE

FAULT

AMP MODULE FAULT

OUT OF RANGE

OUT OF SP RANGE

OVER TEMP (CAP)

OVER TEMP (AMP)

OVER OUTPUT

OVER DISPLAY

ILLEGAL LRV

ILLEGAL HRV

ILLEGAL SPAN

ZERO ADJ OVER

Capsule problem.

Amplifier problem.

Input is outside measurement range limit of capsule.

Static pressure exceeds specified

range. Capsule temperature

is outside range (–50 to 130°C).

Amplifier temperature is outside range (–50 to 95°C).

Output is outside high or low range limit value.

Displayed value is outside high or low range limit value.

LRV is outside setting range.

HRV is outside setting range.

SPAN is outside setting range.

Zero adjustment is too large.

Output Operation

during Error

Outputs the signal (Hold, High, or Low) set with parameter D53.

Outputs high range limit value or low range limit value.

Displays present output.

Outputs high or low range limit value.

Displays high or low range limit value.

Holds output immediately before error occurrence.

Displays present output.

Replace capsule.

Replace amplifier.

Check input.

Check line pressure (static pressure).

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

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

Check input and display conditions and modify them as needed.

Check LRV and modify as needed.

Check HRV and modify as needed.

Check SPAN and change as needed.

Readjust zero point.

T0710 .EPS

7-17

IM 1C22J1-01E

8. MAINTENANCE

8.1 Overview

WARNING

Since the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors during draining condensate or venting gas in transmitter pressure-detector section even after dismounting the instrument from 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.

Since the transmitters are precision instruments, carefully and thoroughly read the following sections for proper handling during maintenance.

IMPORTANT

• As a rule, maintenance of this transmitter should be implemented in a maintenance service shop where the necessary tools are provided.

• The CPU assembly contains sensitive parts that may be damaged by static electricity. Exercise care so as not to directly touch the electronic parts or circuit patterns on the board, for example, by preventing static electrification by using grounded wrist straps when handling the assembly. Also take precautions such as placing a removed CPU assembly into a bag with an antistatic coating.

8.2 Calibration Instruments Selection

Table 8.2.1 shows the instruments required for calibration. Select instruments that will enable the transmitter to be calibrated or adjusted to the required accuracy.

The calibration instruments should be handled carefully so as to maintain the specified accuracy.

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 Figure 8.3.1

and warm up the instruments for at least five minutes.

IMPORTANT

• 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 on the high pressure side, as shown in the figure. If the measurement range 0% point is shifted in the negative direction (elevated zero), the reference pressure should be applied using the 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 confirm that the errors are within the required accuracy.

8-1

IM 1C22J1-01E

8. MAINTENANCE

Table 8.2.1 Tools for Disassembly and Reassembly

Name RemarksYokogawa-recommended Instrument

Power

supply

Load

resistor

Voltmeter

Model SDBT or SDBS distributor Model 2792 standard resistor [250 Ω ±0.005%, 3 W]

Load adjustment resistor [100 Ω ±1%, 1 W] Model 2501 A digital multimeter

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

4 to 20 mA DC signal

Model MT110, MT120 precision digital manometer

1) For 10 kPa class Accuracy: ±(0.015% of rdg + 0.015% of F.S.)

±(0.2% of rdg + 0.1% of F.S.)

. . . . . . . . .

for 0 to 10 kPa

. . . . .

for -10 to 0 kPa

2) For 130 kPa class

Digital

manometer

Accuracy: ±0.02% of rdg

±5digits

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . .

±(0.2% of rdg + 0.1% of F.S.)

3) For 700 kPa class Accuracy: ±(0.02% of rdg + 3digits)

±5 digits

. . . . . . . . . . . . . . . . . . . . . . . . .

±(0.2% of rdg + 0.1% of F.S.)

. . . . . . . . .

. . . . . . . . . . . . .

. . . . . . . . .

for 25 to 130 kPa for 0 to 25 kPa for -80 to 0 kPa

for 100 to 700 kPa for 0 to 100 kPa for -80 to 0 kPa

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

4) For 3000 kPa class Accuracy: ±(0.02% of rdg + 10 digits)

±(0.2% of rdg + 0.1% of F.S.)

. . . . . . . . . . .

. . . . . . . . .

for 0 to 3000 kPa for -80 to 0 kPa

5) For 130 kPa abs class

Pressure generator

Accuracy: ±(0.03% of rdg + 6 digits)

. . . . . . . . . . . .

Model 2657 pneumatic pressure standard for 200 kPa {2 kgf/cm

Accuracy: ±0.05% of F.S. or ±0.1% setting (whichever is greater)

Dead weight gauge tester 25 kPa {2500mmH2O} Accuracy: ±0.03% of setting

for 0 to 130 kPa abs

}, 25 kPa {2500 mmH2O}

Requires air pressure supply.

Select a pressure generator 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.

T0801.EPS

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% level, there are difficulties in calibration to this level in the field. For calibration to the 0.1% level, contact Yokogawa representatives from which the instrument was purchased or the nearest Yokogawa office.

Mating calibration flange

Diaphragm seal

Figure 8.3.1 Instrument Connections

Reference pressure

Load resistance, 250Ω

Rc Load adjustment resistance, 100Ω

Model MT110, MT120 precision digital manometer

Model 2657 pneumatic pressure standards

Power supply

Digital voltmeter

8-2

If a pressure source and a manometer are combined:

Pressure source

Supply pressure

If a pressure generator is used:

F0801.EPS

IM 1C22J1-01E

8. MAINTENANCE

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 8.4.1 shows the tools required.

Table 8.4.1 Instruments Required for Calibration

Tool RemarksQuantity

Phillips screwdriver Slotted screwdriver

Allen wrenches

Wrench

Torque wrench

Adjustable wrench

Socket wrench

Socket driver

Tweezers

CAUTION

Precautions for CENELEC, SAA, and JIS

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. For details, see “Installation and Operating Precautions for JIS Flameproof Equipment” later in this manual.

• Two covers are locked by each of an Allen head bolt (shrouding bolt) on the flameproof type transmitters. When a shrouding bolt is driven clockwise by an Allen wrench, it is going in and cover lock is released, and then a 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.

JIS B4633, No. 2 1 2

JIS B4648

One each, nominal 3 and

5 mm Allen wrenches 1

Width across flats, 17 mm 1 1 1

Width across flats, 16 mm 1

Width across flats, 5.5 mm 1

T0902.EPS

8.4.1 Replacing the Integral Indicator

This subsection describes the procedure for replacing an integral indicator. (See Figure 8.4.2)

CAUTION

Precautions for JIS Flameproof Type Trans-

mitters

Users are prohibited by law from modifying the construction of a flameproof type transmitter. Thus the user is prohibited from using a flameproof type transmitter with its integral indicator removed, or from adding an integral indicator to a transmitter. If such modification is absolutely required, contact Yokogawa.

j Removing the Integral Indicator

1) Remove the cover.

2) Supporting the integral indicator by 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 between it and the CPU assembly.

j 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

LCD board assembly

Integral indicator

Shrouding bolt

Figure 8.4.1 Shrouding Bolts

Shrouding bol

F0802.EP

Boss

Bracket (for zero-adjustment screw pin)

Cover

Figure 8.4.2 Removing and Attaching LCD Board

Mounting screw

Assembly and CPU Assembly

CPU assembly

Flat cable

8-3

Zero-adjustment screw pin

F0803.EPS

IM 1C22J1-01E

8.4.2 Replacing the CPU Assembly

NOTE

This subsection describes the procedure for replacing the CPU assembly. (See Figure 8.4.2)

j 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) shown in Figure 8.4.2.

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 flats, 5.5mm) to loosen the two bosses.

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

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

8. MAINTENANCE

Confirm 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 zero-adjustment mechanism will be damaged.

5) Replace the cover.

NOTE

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

j Mounting the CPU Assembly

1) Connect the flat cable (with black connector) between the CPU assembly and the capsule.

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

NOTE

Make certain that the cables are free of pinching between the case and the CPU assembly edge.

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 amplifier 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.

8-4

IM 1C22J1-01E

8. MAINTENANCE

8.5 Troubleshooting

If any abnormality appears in the measured values, use the troubleshooting flow chart below to isolate and remedy the problem. Since some problems have complex causes, these flow charts may not identify all. If you have difficulty 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; see Section 7.5 for information on using this function.

: Areas where self-diagnostic offers support

Abnormalities appear in measurement.

8.5.2 Troubleshooting Flow Charts

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 BRAIN TERMINAL and check self-diagnostics.

Does the self-diagnostic

indicate problem location?

Is power supply polarity correct?

YES

Refer to error message summary in Subsection 7.5.2 to take actions.

Refer to Section 5.3 to check/correct polarity at each terminal from power supply to the terminal box.

YES

Inspect the

process system.

YES

Inspect receiver.

Environmental conditions

Check/correct

environmental conditions.

Is process variable

itself abnormal?

Measurement system problem

Isolate problem in

measurement system.

Does problem exist in

receiving instrument?

Operating conditions

Transmitter itself

Check transmitter.

Are power

supply voltage and load

resistance correct?

YES

Is there

continuity through the

transmitter loop wiring?

Do the loop numbers

match?

YES

Contact Yokogawa service personnel.

Refer to Section 5.6 to obtain rated voltage and load resistance.

Find/correct broken conductor or wiring error.

F0805.EPS

Check/correct operating

conditions.

Figure 8.5.1 Basic Flow and Self-Diagnostics

F0804.EPS

8-5

IM 1C22J1-01E

8. MAINTENANCE

Output travels beyond 0% or 100%.

Connect BRAIN TERMINAL and check self-diagnostics.

Does the self-

diagnostic indicate problem

YES

location?

Refer to error message summary in Subsection 7.5.2 to take actions.

Is the

diaphragm seal correctly

connected to the

process?

YES

Is power supply

Correct the connections.

polarity correct?

Large output error.

Connect BRAIN TERMINAL and check self-diagnostics.

Does the self-

diagnostic indicate the problem

YES

location?

Are power

supply voltage and load

Refer to error message summary in Subsection 7.5.2 to take actions.

resistance correct?

YES

Refer to Section 5.6 to obtain the rated voltage and load resistance.

Is external noise

YES

contained in the outout?

Avoid noise by providing complete grounding, or using shielded wires.

YES

Check/correct polarity at each terminal from power supply to the terminal box.

Is the pressure as specified?

YES

Use the transmitter within the measurement range shown on the data plate.

Is zero point

adjusted correctly?

YES

Adjust the zero point.

Contact Yokogawa service personnel.

F0806.EPS

Is excess capillary secured?

YES

Is transmitter

installed where there is

marked variation in

temperature?

Were appropriate

instruments used for

calibration?

YES

Is output adjusted correctly?

YES

Secure it so that it is not moved by wind or vibration.

YES

Provide lagging and/or heat insulation, or allow adequate ventilation.

Refer to Section 8.2 when selecting instruments for calibration.

Adjust the output.

8-6

Contact Yokogawa service personnel.

F0807.EPS

IM 1C22J1-01E

9. GENERAL SPECIFICATIONS

L= -

65 x 10

(R x C)

(Cf + 10,000)

9. GENERAL SPECIFICATIONS

9.1 Standard Specifications

Refer to GS 1C22T2-E for Fieldbus communication type marked with “e”.

d Performance Specifications

See General Specifications sheet, GS 1C22J3-E.

d Functional Specifications Span & Range Limits

Measurement

Span

and Range

Span

Range

Span

Range

EJA438WEJA438N

Span

Range

MPa

0.06 to 3 –0.1 to 3

0.46 to 14 –0.1 to 14

0.46 to 7 –0.1 to 7

Measurement range is within the flange rating.

Zero Adjustment Limits:

Zero can be fully elevated or suppressed, within the Lower and Upper Range Limits of the capsule.

External Zero Adjustment “e”:

External zero is continuously adjustable with

0.01% incremental resolution of span. Span may be adjusted locally using the digital indicator with range switch.

Output “e”:

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.

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 Note: Applicable for Output signal code D and E

Damping Time Constant (1st order):

The sum of the amplifier and capsule damping time constant must be used for the overall time constant. Amp damping time constant is adjustable from 0.2 to 64 seconds.

Capsule (Silicone Oil)

Time Constant (approx. sec) 0.4

When the capillary length 3 m and the fill fluid code A.

psi

(/D1)

8.6 to 430 –15 to 430 66 to 2000

–15 to 2000

66 to 1000

–15 to 1000

bar

(/D3)

0.6 to 30 –1 to 30

4.6 to 140 –1 to 140

4.6 to 70 –1 to 70

A and B

kgf/cm

(/D4)

0.6 to 30 –1 to 30

4.6 to 140 –1 to 140

4.6 to 70

–1 to 70

T0901.EPS

T0902.EPS

Ambient Temperature Limits:

* Safety approval codes may affect limits.

–40 to 60°C (–40 to 140°F), –30 to 60°C (–22 to 140°F) with LCD Display

Note: The ambient temperature limits must be within the

fill fluid operating temperature range, see Table 1.

Process Temperature Limits:

* Safety approval codes may affect limits.

See Table 1.

Working Pressure Limits:

2.7 kPa abs {20 mmHg abs} to flange rating pressure. For atmospheric pressure or below, see Figure 1.

d Installation

Supply & Load Requirements “e”:

* Safety approvals can affect electrical requirements.

See Section 5.6, ‘Power Supply Voltage and Load Resistance.’

EMC Conformity Standards: ,

For EMI (Emission): EN55011, AS/NZS 2064 1/2 For EMS (Immunity): EN50082-2

Communication Requirements “e”:

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.

Load Capacitance;

0.22 µF or less (see note)

Load Inductance;

3.3 mH or less (see note)

Input Impedance of communicating device;

10 kΩ or more at 2.4 kHz.

Note: For general-use and Flameproof type.

For Intrinsically safe type, please refer to ‘Optional Specifications.’

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. Use the following formula to determine cable length for specific applications:

Where: L = length in meters or feet R = resistance in Ω (including barrier resistance) C = cable capacitance in pF/m or pF/ft Cf = maximum shunt capacitance of receiving

devices in pF/m or pF/ft

9-1

IM 1C22J1-01E

9. GENERAL SPECIFICATIONS

d Physical Specifications

Wetted Parts Materials:

Diaphragm and other wetted parts;

See ‘Model and Suffix Codes’

Non-wetted Parts Materials:

Capillary tube;

SUS316

Protection tube;

SUS304, PVC-sheathed [Max. operating temperature: 100°C (212°F)]

Fill Fluid;

See Table 1.

Housing;

Low copper cast-aluminum alloy with polyurethane paint (Munsell 0.6GY3.1/2.0)

Enclosure Classification;

JIS C0920 immersion proof (equivalent to NEMA 4X and IEC IP67)

Cover O-rings;

Buna-N

Data plate and tag;

SUS304

Weight:

9.3 kg (20.5 lb): Model EJA438W, 2-inch ANSI Class 150 flange, without mounting bracket. Add

1.4 kg (3.1 lb) for JIS SCS14A stainless steel amplifier housing.

Connections:

Refer to the ‘Model and Suffix Codes’ to specify the process and electrical connection type.

Process temperature for fill fluid code B

Transmitter ambient temperature range (For fill fluid code A,B)

100{750}

Working pressure

kPa abs

{mmHg abs}

10{75}

2.7{20}

1{7.5}

0.1{0.75}

Figure 1. Working Pressure and Process Temperature

Process temperature for fill fluid code A

-50 0 50 100 150 200 250 300 Process Temperature (8C)

Process temperature for fill fluid code C

F0901.EPS

Flange max. working pressure

Atmospheric pressure

Table 1. Process Temperature and Ambient Temperature

Silicone Oil Fluorinated Oil Ethylene Glycol

Process Ambient

Specific

(Note 3)

(Note 1)

(Note 2)

Temperature

temperature

Working pressure

gravity

Fill Fluid

Code ‘A’ –10 to 2508C (14 to 4828F)

–10 to 608C

(14 to 1408F)

Note 1: See Figure 1. ‘Working Pressure and Process Temperature.’

Note 2: This ambient temperature is the transmitter ambient temperature.

Note 3: Approximate values at a temperature of 25°C(77°F)

Note 4: The pressure transmitter should be installed at least 600 mm below the process connection.

However, this value(600 mm) may be affected by ambient temperature, operating pressure, fill fluid or material of the wetted diaphragm. Contact YOKOGAWA when the transmitter can not be installed at least 600 mm below the process connection.

Fill Fluid Code ‘B’

–30 to 1808C

(–22 to 3568F)

–15 to 608C (5 to 1408F)

See Figure 1.

0.941.07 1.09

Tag Number

Output Mode

Display Mode

Operation Mode

Damping Time

Constant

As specified in order ‘Linear’ ‘Linear’ ‘Normal’ unless otherwise specified in order

‘2 sec.’

Fill Fluid

Code ‘C’

10 to 3008C

(50 to 5728F)

10 to 608C

(50 to 1408F)

Calibration Range

Lower Range Value

Calibration Range

Higher Range Value

Calibration Range

Units

Fill Fluid Code ‘D’

–20 to 1208C

(–4 to 2488F )

–10 to 608C

(–14 to 1408F )

51 kPa abs or more

{380 mmHg abs}

1.90 to 1.92 1.09

As specified in order As specified in order

Selected from mmH2O, mmAq, mmWG, mmHg, Torr, Pa, hPa, kPa, MPa, mbar, bar, gf/cm2, kgf/cm2, inH2O, inHg, ftH2O, psi, or atm.(Only one unit can be specified)

Fill Fluid Code ‘E’

–50 to 1008C

(–58 to 2128F)

–40 to 608C

(–40 to 1408F)

Vacuum pressure

not allowed

T0903.EPS

T0908.EPS

Note 1: If Tag No. is no more than 16 alphanumeric characters (including - and ·), it will be written into

the tag plate and amplifier memory settings.

9-2

IM 1C22J1-01E

9. GENERAL SPECIFICATIONS

9.2 Model and Suffix Codes

d Model EJA438W [Style: S2]

Model Suffix Codes Description

EJA438W

Output Signal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-D

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-E

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-F

Measurement span (capsule) Wetted parts material

Process flange rating

Process flange size / material

Cover flange bolts material

Fill fluid

Capillary length (m) Installation Electrical connection

Integral indicator

Mounting bracket

Optional codes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

-A

. . . . . . . . . . . . . . . . . . .

-B

. . . . . . . . . . . . . . . . . . .

-C

. . . . . . . . . . . . . . . . . . .

-D

. . . . . . . . . . . . . . . . . . .

-E

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .

h h

. . . . . . . . . . . . . .

-9

. . . . . . . . . . . . .

. . . . . . . . . .

. . . . . . . . .

/h Optional specification

Example: EJA438W-DASA1AA-AA02-92NA/h Note 1: Refer to GS 1C22T1-E for HART Protocol version. Note 2: In case of wetted parts material code T(Tantalum), maximum process temperature limits is 200°C. Note 3: Refer to GS 1C22T2-E for Fieldbus communication.

Diaphragm sealed differential pressure transmitter (Flush diaphragm type) 4 to 20 mA DC with digital communication (BRAIN protocol) 4 to 20 mA DC with digital communication (HART protocol) Digital communication (FOUNDATION Fieldbus protocol)

(Note 1)

(Note 3)

0.06 to 3 MPa {0.6 to 30 kgf/cm2}

0.46 to 14 MPa {4.6 to 140 kgf/cm

} [Diaphragm] [Others] JIS SUS316L JIS SUS316L Hastelloy C-276 Hastelloy C-276 Tantalum Tantalum

(Note 2)

Titanium Titanium JIS 10K JIS 20K JIS 40K JIS 63K ANSI class 150 P1 ANSI class 300 P2 ANSI class 600 P4

. . . . . . . . . .

JPI class 150 JPI class 300

JPI class 600 DIN PN10/16 DIN PN25/40 DIN PN64

2-inch (50 mm) / JIS S25C 2-inch (50 mm) / JIS SUS304 2-inch (50 mm) / JIS SUS316 3-inch (80 mm) / JIS S25C 3-inch (80 mm) / JIS SUS304 3-inch (80 mm) / JIS SUS316

JIS SCM435 JIS SUS630

[Process temp.] [Ambient temp.]

For general use (silicone oil) –10 to 250 8C –10 to 60 8C For general use (silicone oil) –30 to 180 8C –15 to 60 8C For high temperature use (silicone oil) 10 to 300 8C 10 to 60 8C For oil-prohibited use (fluorinated oil) –20 to 120 8C –10 to 60 8C For low temperature use (ethylene glycol) –50 to 100 8C –40 to 60 8C Always A Specify capillary length from 1 to 10 m in h h. (Example for 2 m: 02) Horizontal impulse piping type, left side high pressure G1/2 female, one electrical connection 1/2 NPT female, two electrical connections without blind plug PG 13.5 female, two electrical connections without blind plug M20 female, two electrical connections without blind plug G1/2 female, two electrical connections and a blind plug 1/2 NPT female, two electrical connections and a blind plug PG 13.5 female, two electrical connections and a blind plug M20 female, two electrical connections and a blind plug Digital indicator Digital indicator with the range setting switch (None) JIS SECC 2-inch pipe mounting (flat type) JIS SUS304 2-inch pipe mounting (flat type) (None)

T0904.EPS

9-3

IM 1C22J1-01E

9. GENERAL SPECIFICATIONS

d Model EJA438N [Style: S2]

Model Suffix Codes Description

EJA438N

Output Signal

Measurement span (capsule)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-D

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-E

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

-F

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wetted parts material

Process flange rating

Diaphragm extension length (X

)

Process flange size / material

Cover flange bolts material

Fill fluid

Capillary length (m) Installation Electrical connection

Integral indicator

Mounting bracket

Optional codes

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

-A

. . . . . . . . . . . . . . . . . .

-B

. . . . . . . . . . . . . . . . . .

-C

. . . . . . . . . . . . . . . . . .

-D

. . . . . . . . . . . . . . . . . .

-E

. . . . . . . . . . . . . . . . .

. . . . . . . . . .

h h

. . . . . . . . . . . .

-9

. . . . . . . . . . .

. . . . . . . . .

. . . . . . . .

/h Optional specification

Example: EJA438N-DASA12GA-AB02-92NA/h Note 1: Refer to GS 1C22T1-E for HART Protocol version. Note 2: Refer to GS 1C22T2-E for Fieldbus communication.

Diaphragm sealed differential pressure transmitter (Extended diaphragm type) 4 to 20 mA DC with digital communication (BRAIN protocol) 4 to 20 mA DC with digital communication (HART protocol) Digital communication (FOUNDATION Fieldbus protocol)

(note 1)

(note 2)

0.06 to 3 MPa {0.6 to 30 kgf/cm2}

0.46 to 7 MPa {46 to 70 kgf/cm

} [Diaphragm] [Pipe] [Others] JIS SUS316L JIS SUS316 JIS SUS316 JIS 10K JIS 20K JIS 40K ANSI class 150 ANSI class 300 JIP class 150 JIP class 300 DIN PN10/16 DIN PN25/40 X

= 50 mm

= 100 mm

= 150 mm

X 4-inch (100 mm) / JIS S25C 4-inch (100 mm) / JIS SUS304 4-inch (100 mm) / JIS SUS316 3-inch (80 mm) / JIS S25C 3-inch (80 mm) / JIS SUS304 3-inch (80 mm) / JIS SUS316 JIS SCM435 JIS SUS630

[Process [Ambient

temperature] temperature] For general use (silicone oil) –10 to 250 8C –10 to 60 8C For general use (silicone oil) –30 to 180 8C –15 to 60 8C For high temperature use (silicone oil) 10 to 300 8C 10 to 60 8C For oil-prohibited use (fluorinated oil) –20 to 120 8C –10 to 60 8C For low temperature use (ethylene glycol) –50 to 100 8C –40 to 60 8C

Always B Specify capillary length from 1 to 10 m in h h. (Example for 2 m: 02) Horizontal impulse piping type, left side high pressure G1/2 female, one electrical connection 1/2 NPT female, two electrical connections without blind plug PG 13.5 female, two electrical connections without blind plug M20 female, two electrical connections without blind plug G1/2 female, two electrical connections and a blind plug 1/2 NPT female, two electrical connections and a blind plug PG 13.5 female, two electrical connections and a blind plug M20 female, two electrical connections and a blind plug

Digital indicator Digital indicator with the range setting switch (None)

JIS SECC 2-inch pipe mounting (flat type) JIS SUS304 2-inch pipe mounting (flat type) (None)

T0905.EPS

9-4

IM 1C22J1-01E

9.3 Optional Specifications

Item Description Code

FM Explosionproof Approval

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 (classified) locations, indoors and outdoors ( NEMA 4X ) Temperature class: T6

Amb. Temp.:–40 to 60 8C (–40 to 140 8F)

Electrical connection: 1/2 NPT female FM Intrinsically safe Approval

Intrinsically Safe for Class I, Division 1, Groups A, B, C & D, Class II, Division 1,

Factory Mutual (FM)

CENELEC (KEMA)

Canadian Standards Association (CSA)

Standards Association of Australia (SAA)

Japanese Industrial Standards (JIS)

Attached flameproof Packing adapter

Groups E, F & G and Class III, Division 1 Hazardous Locations. Nonincendive for Class I, Division 2, Groups A, B, C & D, Class II, Division. 2, Groups E, F & G, and Class III, Division 1 Hazardous Locations. Enclosure: “NEMA 4X”, Temp. Class: T4, Amb. Temp.: –40 to 60 8C (–40 to 140 8F) Intrinsically Safe Apparatus Parameters

[Groups A, B, C, D, E, F and G]

Vmax=30 V, Imax=165 mA, Pmax=0.9 W, Ci=22.5 nF, Li=730 mH

[Groups C, D, E, F and G]

Vmax=30 V, Imax=225 mA, Pmax=0.9 W, Ci=22.5 nF, Li=730 mH

Electrical connection: 1/2 NPT female Combined FF1and FS1

Electrical connection: 1/2 NPT female CENELEC (KEMA) Flameproof Approval

EExd IIC T4, T5, T6, Amb. Temp.: –40 to 80 8C (–40 to 176 8F) Max. process Temp.: T4; 120 8C (248 8F), T5; 100 8C (212 8F), T6; 85 8C (185 8F)

Electrical connection: 1/2 NPT female, Pg 13.5 female and M20 female CENELEC (KEMA) Intrinsically safe Approval

EEx ia IIC T4, Amb. Temp.: –40 to 60 8C(–40 to 140 8F) Ui=30 V, Ii=165 mA, Pi=0.9 W, Ci=22.5 nF, Li=730 mH Electrical connection: 1/2 NPT female, Pg 13.5 female and M20 female

Combined KF1, KS1 and Type N Approval

KEMA Type N Approval Ex nA IIC T4, Amb. Temp.: –40 to 60 8C(–40 to 140 8F) U=30 V, I=165 mA

Electrical connection: 1/2 NPT female, Pg 13.5 female and M20 female CSA Explosionproof Approval

Explosionproof for Class I, Division 1, Groups B, C and D Dustignitionproof for Class II/III, Division 1, Groups E, F and G Division2 ‘SEALS NOT REQUIRED’ , Temp. Class : T4, T5, T6 Encl Type 4x Max. Process Temp.: T4; 120 8C (248 8F), T5; 100 8C (212 8F), T6; 85 8C (185 8F) Amb. Temp.:–40 to 80 8C (–40 to 176 8F)

Electrical connection: 1/2 NPT female CSA Intrinsically safe Approval

Class I, Groups A, B, C and D Class II and III, Groups E, F and G Encl Type 4x, Temp. Class: T4, Amb. Temp.: –40 to 60 8C (–40 to 140 8F) Vmax=30 V, Imax=165 mA, Pmax=0.9 W, Ci=22.5 nF, Li=730 mH

Electrical connection: 1/2 NPT female Combined CF1 and CS1

Electrical connection: 1/2 NPT female

SAA Flameproof, Intrinsically safe and Non-sparking Approval

Ex d IIC T4/T5/T6, IP67 class I, Zone 1, Amb. Temp. : –40 to 80 8C (–40 to 176 8F)

Max. Process Temp.: T4; 120 8C (248 8F), T5; 100 8C (212 8F), T6; 85 8C (185 8F) Ex ia IIC T4, IP67 class I, Zone 0 Ex n IIC T4, IP67 class I, Zone 2

Ui=30 V DC, Ii=165 mA DC, Wi=0.9 W, Amb. Temp.: –40 to 60 8C (–40 to 140 8F)

Electrical connection: 1/2 NPT female, Pg 13.5 female and M20 female

JIS Flameproof Approval, Ex do IIC T4X Amb. Temp. –20 to 60 8C, Process Temp. –20 to 120 8C

JIS Intrinsically safe Approval, Ex ia IIC T4 Amb. Temp. –20 to 60

Electrical connection: G1/2 female Applicable cable O.D.: 8 to 12 mm

8C, Process Temp. –20 to 120 8C

9. GENERAL SPECIFICATIONS

FF1

FS1

FU1

KF1

KS1

KU1

CF1

CS1

CU1

SU1

JF3

JS1

1 pc. 2 pcs.

G11 G12

T0906.EPS

9-5

IM 1C22J1-01E

Item Description Code

Color change

Painting

Coating change

Lightning protector

Oil-prohibited use Oil-prohibited use with

dehydrating treatment

Calibration units

Sealing treatment to JIS SUS630 nuts

No serration

Teflon film Operating temperature

correction

(Note 1)

(Note 2)

(Note 3)

Capillary without PVC sheaths

Fast response

Failure alarm down-scale

(Note 4)

Stainless steel amplifier housing

(Note 5)

Gold-plate

Mill Certificate

Pressure test/Leak test Certificate

9. GENERAL SPECIFICATIONS

Amplifier cover only Epoxy resin-baked coating

Transmitter power supply voltage: 10.5 to 32 V DC (9 to 32 V DC for Fieldbus communication type) Allowable current: Max. 6000 A (1x40 µs),

Repeating 1000 A (1x40 µs) 100 times Degrease cleansing treatment Degrease cleansing and dehydrating treatment

P calibration (psi unit) bar calibration (bar unit)

(See Table for Span and

Range Limits)

M calibration (kgf/cm2 unit) Sealant (liquided silicone rubber) is coated on surfaces of JIS SUS630 nuts used for cover

flange mounting. No serration work on the flange gasket surface (for ANSI flange only)

With FEP film and fluorinated oil Working range: 20 to 150°C, 0 to 2 MPa {0 to 20 kgf/cm2} (Not usable under vacuum)

Adjusting range: 80 to 300°C

When ambient temperature exceeds 100°C, or use of PVC is prohibited Update time: 0.125 sec or less, see GS for the response time

Output status at CPU failure and hardware error: –5%, 3.2 mA DC or less. When combining with Optional code F1, output signal is –2.5%, 3.6 mA DC or less.

Amplifier housing material: JIS SCS14A stainless steel (equivalent to JIS SUS316 cast stainless steel or ASTM CF-8M)

Gold-plated diaphragm

Process flange, Block

For model EJA438W For model EJA438N

Process flange, Block, Pipe, Base

( Flange rating ) JIS 10K JIS 20K JIS 40K JIS 63K ANSI/JPI Class 150

For A-capsuleFor B-capsule

ANSI/JPI Class 300 ANSI/JPI Class 600 JIS 10K JIS 20K JIS 40K JIS 40K JIS 63K ANSI/JPI Class 150 ANSI/JPI Class 300 ANSI/JPI Class 300 ANSI/JPI Class 600

( Test Pressure ) 2 MPa {20 kgf/cm 3 MPa {30 kgf/cm 3 MPa {30 kgf/cm 3 MPa {30 kgf/cm 3 MPa {29.8 kgf/cm 3 MPa {30 kgf/cm 3 MPa {30 kgf/cm 2 MPa {20 kgf/cm 5 MPa {50 kgf/cm 10 MPa {100 kgf/cm 7 MPa {70 kgf/cm 14 MPa {140 kgf/cm 3 MPa {29.8 kgf/cm

7.7 MPa {77 kgf/cm 7 MPa {70 kgf/cm 14 MPa {140 kgf/cm

(Applicable model)

}

EJA438W/EJA438N

}

EJA438W

}

EJA438W/EJA438N

}

EJA438W

}

EJA438W/EJA438N

}

EJA438W

}

EJA438N

}

EJA438W

}

EJA438W/EJA438N

EJA438W

}

EJA438N

}

EJA438W

}

Nitrogen(N2) Gas Retention time: 10 minutes

K1 K5

D1 D3 D4

Y Q T

E1 A1

M05 M06

T41 T42 T43 T45 T46 T47 T49 T31 T32 T33 T34 T35 T36 T37 T38 T39

T0907.EPS

Note 1: This item cannot be applied to Model EJA438W wetted parts material code H (Hastelloy C), T

(Tantalum), or U (Titanium). (In case for code H, T or U, serration work on the flange gasket

surface is not possible) Note 2: Teflon film can only be specified for model EJA438W. Note 3: Specify the process operating temperature for zero correction.

Example: Zero correction by process temperature 90°C. Note 4: The hardware error indicates faulty amplifier or capsule. Standard output status (without /C1) is

up-scale of 110%, 21.6 mA DC or more. Note 5: Applicable only for electrical connection code ‘2’, ‘3’ or ‘4’. Not applicable for optional code Ph

and X1. Not applicable for optional code JF1 and JS1.

9-6

IM 1C22J1-01E

9.4 Dimensions

d Model EJA438W [Style: S2]

ød*

25 (0.98)

9. GENERAL SPECIFICATIONS

Unit: mm(approx. inch)

(1.34)

n-øh

140(5.51)

External indicator conduit connection

(Optional)

333(13.11)

124

(4.88)

(1.85)

*1: Indicates inside diameter of gasket contact surface.

94(3.70)

(3.62)

2-inch pipe

(O.D. 60.5mm)

Process flange size: 3-inch(80mm)

Flange Rating JIS 10K JIS 20K JIS 40K JIS 63K ANSI Class 150 ANSI Class 300 ANSI Class 600 JPI Class 150 JPI Class 300 JPI Class 600 DIN PN 10/16 DIN PN 25/40 DIN PN 64

Process flange size: 2-inch(50 mm)

Flange Rating JIS 10K JIS 20K JIS 40K JIS 63K ANSI Class 150 ANSI Class 300 ANSI Class 600 JPI Class 150 JPI Class 300 JPI Class 600 DIN PN 10/16 DIN PN 25/40 DIN PN 64

* In case where process flange material is JIS S25C, value of f is 0.

øD 185(7.28) 200(7.87) 210(8.27) 230(9.06)

190.5(7.50)

209.6(8.25)

209.6(8.25) 190(7.48) 210(8.27) 210(8.27) 200(7.78) 200(7.78) 215(8.46)

øD 155(6.10) 155(6.10) 165(6.50) 185(7.28)

152.4(6.00)

165.1(6.50)

165.1(6.50) 152(6.10) 165(6.50) 165(6.50) 165(6.50) 165(6.50) 180(7.09)

Conduit connection

Internal indicator

(Optional)

Clamps (Only for JIS Flameproof type)

øC 150(5.91) 160(6.30) 170(6.69) 185(7.28)

152.4(6)

168.1(6.62)

152.4(6)

168.1(6.62)

168.1(6.62) 160(6.30) 160(6.30) 170(6.69)

øC 120(4.72) 120(4.72) 130(5.12) 145(5.12)

120.7(4.75)

127.0(5.00)

120.6(4.75)

127.0(5.00)

127.0(5.00) 125(4.92) 125(4.92) 135(5.31)

øg

197(7.76)

Zero adjustment

Mounting bracket (Flat-type, Optional)

øg 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12)

øg 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94) 100(3.94)

ød 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54) 90(3.54)

ød 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40) 61(2.40)

ø78

øC

(0.47)

(3.07)

18(0.71) 22(0.87) 32(1.26) 40(1.57)

23.9(0.94)

28.5(1.12)

31.8(1.25) 24(0.94)

28.5(1.12)

38.4(1.51) 20(0.79) 24(0.94) 28(1.10)

16(0.63) 18(0.71) 26(1.02) 34(1.34)

19.1(0.75)

22.4(0.88)

31.8(1.25)

19.5(0.77)

22.5(0.89)

31.9(1.26) 18(0.71) 20(0.78) 26(1.02)

øD

110 (4.33)

1.6(0.06)

6.4(0.25)

1.6(0.06)

6.4(0.25)

1.6(0.06)

6.4(0.25)

1.6(0.06)

6.4(0.25)

Terminal side

Ground terminal

Open to atmosphere

(ø5mm)

f *

8 4 8 8 4 8 8

f *

8 4 8 8 4 8 8

Wetted parts material

code U (Titanium)

146(5.75)

øh 19(0.75) 23(0.91) 23(0.91) 25(0.98)

19.1(0.75)

22.4(0.88)

22.4(0.88) 19(0.75) 22(0.87) 22(0.87) 18(0.71) 18(0.71) 22(0.87)

øh 19(0.75) 19(0.75) 19(0.75) 23(0.91)

19.1(0.75)

19.1(0.75) 19(0.75) 19(0.75) 19(0.75) 18(0.71) 18(0.71) 22(0.87)

F0902.EPS

9-7

IM 1C22J1-01E

d Model EJA438N [Style: S2]

9. GENERAL SPECIFICATIONS

External indicator conduit connection

(Optional)

333(13.11)

124

(4.88)

(1.85)

140(5.51)

94(3.70)

(3.62)

2-inch pipe

(O.D. 60.5mm)

120

(4.72)

Conduit connection

Internal indicator

(Optional)

197(7.76)

Zero adjustment

Clamps (Only for JIS Flameproof type)

Mounting bracket (Flat-type, Optional)

øD øC

øg

øA

ø30 (1.18)

ø78

(3.07)

n-øh

110 (4.33)

(0.47)

Unit : mm (approx. inch)

tX2f

14 (0.55)

Terminal side

Ground terminal

Open to atmosphere

(ø5mm)

146(5.75)

Process flange size : 4 inch (100 mm)

Flange Rating JIS 10K JIS 20K JIS 40K ANSI Class 150 ANSI Class 300 JPI Class 150 JPI Class 300 DIN PN 10/16 DIN PN 25/40

Process flange size : 3 inch (80 mm)

Flange Rating JIS 10K JIS 20K JIS 40K ANSI Class 150 ANSI Class 300 JPI Class 150 JPI Class 300 DIN PN 10/16 DIN PN 25/40

* In case where process flange material is JIS S25C, value of f is 0.

øD 210(8.72) 225(8.86) 250(9.84)

228.6(9.00) 254(10.00)

229(9.02)

254(10.00)

220(8.66) 235(9.25)

øD 185(7.28) 200(7.87) 210(8.27)

190.5(7.50)

209.6(8.25) 190(7.48) 210(8.27) 200(7.78) 200(7.78)

øC 175(6.89) 185(7.28) 205(8.07)

190.5(7.50)

200.2(7.88)

190.5(7.50)

200.2(7.88) 180(7.09) 190(7.48)

øC 150(5.91) 160(6.30) 170(6.69)

152.4(6)

168.1(6.62)

152.4(6)

168.1(6.62) 160(6.30) 160(6.30)

øg 155(6.10) 155(6.10) 155(6.10) 155(6.10) 155(6.10) 155(6.10) 155(6.10) 155(6.10) 155(6.10)

øg 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12) 130(5.12)

øA 96(3.78) 96(3.78) 96(3.78) 96(3.78) 96(3.78) 96(3.78) 96(3.78) 96(3.78) 96(3.78)

øA 71(2.80) 71(2.80) 71(2.80) 71(2.80) 71(2.80) 71(2.80) 71(2.80) 71(2.80) 71(2.80)

Diaphramg extension length code

= 50 mm (2 inch)

2 : X

4 : X2 = 100 mm (4 inch)

= 150 mm (6 inch)

6 : X

f *

t 18(0.71) 24(0.94) 36(1.42)

23.9(0.94)

31.8(1.25) 24(0.94) 32(1.26) 20(0.79) 24(0.94)

t 18(0.71) 22(0.87) 32(1.26)

23.9(0.94)

28.5(1.12) 24(0.94)

28.5(1.12) 20(0.79) 24(0.94)

0 0 0

1.6(0.06)

1.6(0.06) 0 0

f *

0 0 0

1.6(0.06)

1.6(0.06) 0 0

n 8 8 8 8 8 8 8 8 8

n 8 8 8 4 8 4 8 8 8

øh 19(0.75) 23(0.91) 25(0.98)

19.1(0.75)

22.4(0.88) 19(0.75) 22(0.87) 18(0.71) 22(0.87)

øh 19(0.75) 23(0.91) 23(0.91)

19.1(0.75)

22.4(0.88) 19(0.75) 22(0.87) 18(0.71) 18(0.71)

F0903.EPS

9-8

IM 1C22J1-01E

Customer Maintenance Parts List

DPharp EJA Series Transmitter Section

Item Part No. Description

Bellow F9341RA F9341RJ

F9341JP

Below F9341AA

F9341AC F9341AE F9341AH F9341AJ

F9341AR

F9341KA

Bellow F9300AG F9303JU

F9341KL

7-1

Below F9342BB F9342BH F9342BJ

F9342AF F9342AM

7-2

F9342BF

Y9406ZU

Y9612YU

13 14

Below F9340NW F9340NX G9330DP G9612EB

Bellow F9341FM F9341FJ

Below F9342BL

F9342BM F9342MK F9300PB

Qty

Cover

Cast-aluminum alloy SCS14A stainless steel O-ring

Case Assembly

Name Plate

Screw

Tag Plate

CPU Assembly

Cap Screw

Screw

Plug

Cover Assembly

LCD Board Assembly

Mounting Screw

Label

Cast-aluminum alloy for G1/2 Cast-aluminum alloy for G1/2 (two electrical connections) Cast-aluminum alloy for 1/2 NPT (two electrical connections) Cast-aluminum alloy for M20 (two electrical connections) Cast-aluminum alloy for Pg13.5 (two electrical connections)

SCS14A stainless steel for 1/2 NPT (two electrical connections)

For cast-aluminum alloy case assembly For SCS14A stainless steel case assembly

For BRAIN protocol version (Except JIS Intrinsically safe type) For HART protocol version (Except JIS Intrinsically safe type) For BRAIN protocol version JIS Intrinsically safe type (Optional code /JS1)

For BRAIN protocol version (Optional code /F1) For HART protocol version with write protection switch (Optional code /F1) For FOUNDATION Fieldbus protocol

For Pg13.5 For M20 For G1/2 For 1/2 NPT

Cast-aluminum alloy SCS14A stainless steel

Without range-setting switch With range-setting switch

7-1

For integral indicator

7-2

Yokogawa Electric Corporation

CMPL 1C22A1-02E

6th Edition: Feb. 2000(YK)

Blank Page

Subject to change without notice. Printed in Japan.

CMPL 1C22A1-01E

Customer Maintenance Parts List

Models EJA438W and EJA438N Diaphragm Sealed Gauge Pressure Transmitter (Pressure-detector Section)

Item Part No.

F9300AJ 2 3 4

Below

Y9625YU

Y9630YU

Y9640YU

Y9635YU

Y9612HU 6

Below F9270AW F9300TA

D0117XL-A

Below F9270AX F9300TE

Below F9270AY F9273CZ

Yokogawa Electric Corporation

Qty

Model

EJA438W

EJA438N

Description

O-Ring

— —

Flange

Bolt

Screw, M6 x 12

Bracket Assembly

U-Bolt / Nut Assembly, SUS304 Stainless Steel

Bracket

Bolt

See Table 1

For JIS 10K For JIS 20K, ANSI Class 150 and JPI Class 150

For JIS 40K, ANSI Class 300 and JPI Class 300 (for Flange Size 100 mm, 4 inch) For JIS 40K, ANSI Class 300 and JPI Class 300 (for Flange Size 80 mm, 3 inch)

SECC Carbon Steel SUS304 Stainless Steel

S15C Carbon Steel SUS XM7 Stainless Steel

CMPL 1C22J3-01E

3rd Edition: Oct. 1999(YK)

Table 1. Flange and Bolt Parts Number

Flange Rating

50 mm JIS 10K 50 mm JIS 20K 50 mm JIS 40K 50 mm JIS 63K 2 inch ANSI Class 150 2 inch ANSI Class 300 2 inch ANSI Class 600 2 inch JPI Class 150 2 inch JPI Class 300 2 inch JPI Class 600 80 mm JIS 10K 80 mm JIS 20K 80 mm JIS 40K 80 mm JIS 63K 3 inch ANSI Class 150 3 inch ANSI Class 300 3 inch ANSI Class 600 3 inch JPI Class 150 3 inch JPI Class 300 3 inch JPI Class 600

S25C

Carbon Steel

F9351KP F9351KQ F9351KR F9351KS F9351KT F9351KU F9351KV F9351KW F9351KX F9351KY F9351KA F9351KB F9351KC F9351KD F9351KE F9351KF F9351KG F9351KH F9351KJ F9351KK

Flange Material (Item 2)

SUS304

Stainless Steel

F9351GP F9351GQ F9351GR F9351GS F9351GT F9351GU F9351GV F9351GW F9351GX F9351GY F9351GA F9351GB F9351GC F9351GD F9351GE F9351GF F9351GG F9351GH F9351GJ F9351GK

SUS316

Stainless Steel

F9351WA F9351WB F9351WC F9351YE F9351WG F9351WH F9351WJ F9351WN F9351WP F9351WQ F9351WD F9351WE F9351WF F9351YF F9351WK F9351WL F9351WM F9351WR F9351WS F9351WT

Bolt (Item 3)

Y9520ZU Y9525ZU Y9530ZU Y9540ZU Y9525ZU Y9530ZU F9347VX Y9525ZU Y9530ZU F9347VX Y9525ZU Y9530ZU Y9540ZU Y9545ZU Y9530ZU F9347VX Y9540ZU Y9530ZU F9347VX Y9540ZU

Oct. 1999 Subject to change without notice. Printed in Japan.

CMPL 1C22J3-01E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT

Apparatus Certified Under Technical Criteria (IEC-compatible Standards) and from “RECOMMENDED PRACTICES for Explosion-Protected Electrical Installations in General Industries,” published in 1979

1.General

The following describes precautions on electrical apparatus of intrinsically safe construction (hereinafter referred to as intrinsically safe apparatus).

Following the Labor Safety and Health Laws of Japan, an intrinsically safe apparatus must undergo type tests in order to be certified by the Technical Institute of Industrial Safety, Inc. These tests are required to satisfy either the technical criteria for electrical machinery and equipment in compliance with explosionproof standards involving inflammable gases or vapors and for machinery and equipment having explosionproof performance (standards notification no. 556 from the Japanese Ministry of Labor) (hereinafter referred to as technical criteria), in conformity with IEC Standards, or the “Recommended Practice for Explosion-Protected Electrical Installations in General Industries,” published in

1979. Such a certified apparatus can be used in hazardous locations where inflammable gases or vapors may be present.

Certified apparatus includes a certification label and an equipment nameplate with the specifications necessary for explosion requirements as well as precautions on explosion protection. Please confirm these precautionary items and use them to meet specification requirements.

For electrical wiring and maintenance servicing, please refer to “Internal Wiring Rules” in the Electrical Installation Technical Standards as well as “USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry,” published in 1994.

To meet intrinsically safe requirements, equipment that can be termed an “intrinsically safe apparatus” must:

(1) be certified by the Technical Institute of Industrial

Safety, Inc. in accordance with the Labor Safety and Health Laws of Japan and have the appropriate mark of certification labeled on its case, and

(2) be used in compliance with the specifications marked on

its certification label, equipment nameplate and precautionary information furnished.

Note: Intrinsically safe apparatus satisfy their performance under

specific conditions. They are not always absolutely safe under every operational and environmental condition. In other

words, they are not safe products involved with factors such as chemical reactions, geographical changes or the like other than affected by electric energy from the equipment itself.

2.Electrical Apparatus of Intrinsic Safety Type of ExplosionProtected Construction

The intrinsic safety type of explosion-protected construction is a method of protection applicable to a circuit or part of a circuit in which, under prescribed test conditions, no spark or thermal effect, whether produced normally or accidentally, is capable of causing a prescribed explosive gas to ignite. In other words, electrical apparatus of this construction is intended to suppress electrical energy thereby preventing ignition of a given explosive gas atmosphere even though spark or high thermal effect occurs in the electric circuitry.

Intrinsically safe electrical apparatus generally comprise intrinsically safe apparatus installed in a hazardous location and a safety barrier (associated apparatus), installed in a nonhazardous location, aimed at preventing electrical energy from flowing into the electric circuitry of intrinsically safe apparatus.

However, battery-operated, portable intrinsically safe apparatus or the like may be used alone.

3.Terminology

(1) Intrinsically safe apparatus: Electrical apparatus in which

all the circuits are intrinsically safe circuits.

(2) Associated apparatus: Electrical apparatus in which there

are both intrinsically safe circuits and non-intrinsically safe circuits that can affect the safety of intrinsically safe circuits.

(3) Safety barrier: A specific type of associated apparatus,

which consists mainly of safety barrier elements, and serves to limit the flow of excessive electrical energy, which is capable of causing ignition of a given explosive gas or vapour of a non-intrinsically safe circuit into concerned intrinsically safe circuits.

(4) Apparatus of category “ia”: Intrinsically safe electrical

apparatus and associated apparatus which are incapable of causing ignition of a given explosive gas or vapour with the appropriate safety factors such as:

EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT

— when up to two countable faults are applied and, in

addition,

— when non-countable faults produce an onerous

condition.

(5) Apparatus of category “ib”: Intrinsically safe electrical

apparatus and associated apparatus which are incapable of causing ignition of a given explosive gas or vapour, with the appropriate safety factors such as: — when up to one countable fault is applied and, in

addition,

— when non-countable faults produce an onerous

condition.

(6) Safety rating: A rating to be designated to intrinsically

safe apparatus as well as associated apparatus and is the maximum rating allowable for maintaining intrinsic safety of concerned intrinsically safe circuits.

4.Caution on Combining Intrinsically Safe Apparatus and Safety Barriers

(1) A combination of certified intrinsically safe apparatus

and safety barriers needs to satisfy combination requirements. If intrinsically safe apparatus specify safety barriers for combination, safety barriers other than specified cannot be used (see Note 1 for more details).

(2) Certified intrinsically safe systems specify specific safety

barriers in combination with intrinsically safe apparatus. So safety barriers other than specified cannot be used (see Note 2 for more details).

(3) Other than limitations of combining intrinsically safe

apparatus and safety barriers as given in (1) and (2) above, two or more pieces of apparatus certified under different standards cannot be combined with each other (see Note 3 for more details). In addition, bear in mind that classifications of explosion protection such as “IIA,” “IIB” and “IIC” and category “ia” and “ib” limit a combination of intrinsically safe apparatus and safety barriers. For more details, see the “Type Certificate Guide for Explosion-Protected Constructionfor Electrical Machinery and Equipment,” issued by the Japanese Ministry of Labour, the Research Institute of Industrial Safety.

Note 1: Testing Apparatus

Intrinsically safe apparatus and safety barriers are assessed individually to ensure that their safety requirements are satisfied. Tested and certified intrinsically safe apparatus and safety barriers incorporate individual certification numbers. A combination of intrinsically safe apparatus and safety barriers involves the following two limitations: (1) A safety barrier which meets the combination require-

ments by referring to its safety rating and combination parameters shall be selected.

(2) For pressure transmitters, pH transmitters, temperature

detectors and the like, safety barriers that can be combined are already specified. Other safety barriers cannot be used.

Note 2: Testing Intrinsically Safe System

An assembly (as a system) in which intrinsically safe apparatus and safety barriers are combined is assessed to ensure that its safety requirements are satisfied. A tested and certified system incorporates a certification number (intrinsically safe apparatus and safety barriers have the same certification number).

Note 3: Impossible Combinations of Apparatus Certified Under

Different Standards Intrinsically safe apparatus certified under technical criteria and safety barriers certified under the “Recommended Practice for Explosion-Protected Electrical Installations in General Industries” (1979) and vice versa cannot be combined even if their combination requirements are satisfied.

5.Installation of Intrinsically Safe Apparatus and Safety Barriers

(1) Classification of installation location

Intrinsically safe apparatus may be installed, depending upon applicable gases, in a hazardous area in Zone 0, 1 or 2 (Note 4 below), where the specified gases are present. However, note that apparatus certified under Technical Criteria, in category “ib” shall be installed only in Zone 1 or 2. Safety barriers (associated apparatus) that are combined with these intrinsically safe apparatus shall be installed only in a nonhazardous area. In cases where safety barriers are installed in a hazardous area, they shall be enclosed, for example, in a flameproof enclosure.

Note 4: Hazardous areas are classified in zones based upon the

frequency of the appearance and the duration of an explosive gas atmosphere as follows: Zone 0: An area in which an explosive gas atmosphere is

present continuously or is present for long periods.

Zone 1: An area in which an explosive gas atmosphere is

likely to occur in normal operation.

Zone 2: An area in which an explosive gas atmosphere is not

likely to occur in normal operation and if it does occur it will exist for a short period only.

(2) Ambient temperature limits for intrinsically

safe apparatus

Intrinsically safe apparatus shall be installed in a location where the ambient temperature ranges from –20° to +40°C (for those certified under Technical Criteria) or –10° to +40°C (for those certified under the “Recommended Practice for Explosion-Protected Electrical Installations in General Industries” (1979). However, some field-mounted

EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT

intrinsically safe apparatus may be used at an ambient temperature up to 60°C. So, specifications should be checked before installing intrinsically safe apparatus.

If the intrinsically safe apparatus are exposed to direct sunshine or radiant heat from plant facilities, appropriate thermal protection measures shall be taken.

6.Wiring for Intrinsically Safe Circuits

In intrinsically safe construction, safety shall be maintained as an intrinsically safe system involving intrinsically safe apparatus and safety barriers connected thereto, and electrical wiring (through intrinsically safe circuits) interconnected between them. In other words, even when safety requirements are maintained individually by intrinsically safe apparatus and safety barriers, they shall not be affected by electrical or magnetic energy caused by electrical wiring.

To make electrical wiring for intrinsically safe circuits, you must:

(a) refer to the equipment configuration diagram and make

electrical wiring properly;

(b) prevent intrinsically safe wiring from being contacted

with non-intrinsically safe wiring, and separate the intrinsically safe circuit from other electrical circuits;

electrostatically and magnetically affected by nonintrinsically safe wiring;

(d) reduce wiring inductance and capacitance produced

between the intrinsically safe apparatus and safety barrier where possible, and use a shorter cable between the intrinsically safe apparatus and safety barrier than specified if the maximum permissible inductance of the cable is specified as operating conditions;

(e) conform to conditions of installation such as wiring

method, earthing or the like, if any; and

(f) protect the outer sheath of cables from damage with

appropriate measures.

7.Maintenance and Inspection of Intrinsically Safe Apparatus and Safety Barriers

Installations for Explosive Gas Atmospheres in General Industry” issued in 1994 by the Japanese Ministry of Labour, the Research Institute of Industrial Safety.

(1) Requirements for maintenance personnel

Maintenance and inspection of intrinsically safe apparatus and safety barriers shall be conducted by maintenance personnel skilled in intrinsically safe construction and installation of electrical devices as well as capable of applying associated rules.

(2) Maintenance and Inspection

(a) Visual inspection

Visually inspect the external connections of intrinsically safe apparatus and safety barriers, and cables for damage or corrosion as well as other mechanical and structural defects.

(b) Adjustments

Zero, span and sensitivity adjustments shall be made with applicable adjusting potentiometers and mechanical adjustment screws. These maintenance adjustments shall be made in a nonhazardous location.

CAUTION

If intrinsically safe apparatus and safety barriers require maintenance service and checking, a gas detector shall be used to ensure that there is no explosive gas in the location (maintenance servicing shall be conducted in a nonhazardous location).

(3) Repair

Intrinsically safe apparatus and safety barriers shall be repaired by manufacturers.

(4) Prohibition of modifications and specifica-

tion changes

Do not attempt to make modifications or change specifications which may affect safety.

Maintenance and inspection of intrinsically safe apparatus and safety barriers shall be limited to within the instructions described in applicable instruction manuals. If other than this is required, contact the manufacturers. For more information, refer to the “USER’S GUIDELINES for Electrical

EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT

Apparatus Certified Under Technical Criteria (IEC-compatible Standards)

1.General

The following describes precautions on electrical apparatus of flameproof construction (hereinafter referred to as flameproof apparatus) in explosion-protected apparatus.

Following the Labour Safety and Health Laws of Japan, flameproof apparatus is subjected to type tests to meet either the technical criteria for explosionproof electrical machinery and equipment (standards notification no. 556 from the Japanese Ministry of Labour) (hereinafter referred to as technical criteria), in conformity with the IEC Standards, or the “Recommended Practice for Explosion-Protected Electrical Installations in General Industries,” published in

1979. These certified apparatus can be used in hazardous

locations where explosive or inflammable gases or vapours may be present.

construction is of completely enclosed type and its enclosure shall endure explosive pressures in cases where explosive gases or vapours entering the enclosure cause explosion. In addition, the enclosure construction shall be such that flame caused by explosion does not ignite gases or vapours outside the enclosure.

In this manual, the word "flameproof" is applied to the flameproof equipment combined with the types of protection "e", "o", "i", and "d" as well as flameproof equipment.

3.Terminology

(1) Enclosure

An outer shell of an electrical apparatus, which encloses live parts and thus is needed to configure explosion-protected construction.

(2) Shroud

A component part which is so designed that the fastening of joint surfaces cannot be loosened unless a special tool is used.

(3) Enclosure internal volume

This is indicated by:— the total internal volume of the flameproof enclosure minus the volume of the internal components essential to equipment functions.

To meet flameproof requirements, equipment that can be termed “flameproof” must:

(1) Be certified by a Japanese public authority in accordance

with the Labour Safety and Health Laws of Japan and have a certification label in an appropriate location on its case, and

(2) Be used in compliance with the specifications marked on

its certification label, equipment nameplate and precautionary information furnished.

2.Electrical Apparatus of Flameproof Type of ExplosionProtected Construction

Electrical apparatus which is of flameproof construction is subjected to a type test and certified by the Japanese Ministry of Labour aiming at preventing explosion caused by electrical apparatus in a factory or any location where inflammable gases or vapours may be present. The flameproof

(4) Path length of joint surface

On a joint surface, the length of the shortest path through which flame flows from the inside to outside of the flameproof enclosure. This definition cannot be applied to threaded joints.

(5) Gaps between joint surfaces

The physical distance between two mating surfaces, or differences in diameters if the mating surfaces are cylindrical.

Note: The permissible sizes of gaps between joint surfaces, the path

length of a joint surface and the number of joint threads are determined by such factors as the enclosure’s internal volume, joint and mating surface construction, and the explosion classification of the specified gases and vapours.

EX-B03E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT

4.Installation of Flameproof Apparatus

(1) Installation Area

Flameproof apparatus may be installed, in accordance with applicable gases, in a hazardous area in Zone 1 or 2, where the specified gases are present. Those apparatus shall not be installed in a hazardous area in Zone 0.

Note: Hazardous areas are classified in zones based upon the

frequency of the appearance and the duration of an explosive gas atmosphere as follows: Zone 0: An area in which an explosive gas atmosphere is

present continuously or is present for long periods.

Zone 1: An area in which an explosive gas atmosphere is

likely to occur in normal operation.

Zone 2: An area in which an explosive gas atmosphere is not

likely to occur in normal operation and if it does occur it will exist for a short period only.

(2) Environmental Conditions

The standard environmental condition for the installation of flameproof apparatus is limited to an ambient temperature range from –20°C to +40°C (for products certified under Technical Criteria). However, some field-mounted instruments may be certified at an ambient temperature up to +60°C as indicated on the instrument nameplates. If the flameproof apparatus are exposed to direct sunshine or radiant heat from plant facilities, appropriate thermal protection measures shall be taken.

5.External Wiring for Flameproof Apparatus

Flameproof apparatus require cable wiring or flameproof metal conduits for their electrical connections. For cable wiring, cable glands (cable entry devices for flameproof type) to wiring connections shall be attached. For metal conduits, attach sealing fittings as close to wiring connections as possible and completely seal the apparatus. All non-live metal parts such as the enclosure shall be securely grounded. For details, see the “USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry,” published in 1994.

(1) Cable Wiring

• For cable wiring, cable glands (cable entry devices for flameproof type) specified or supplied with the apparatus shall be directly attached to the wiring connections to complete sealing of the apparatus.

• Screws that connect cable glands to the apparatus are those for G-type parallel pipe threads (JIS B 0202) with no sealing property. To protect the apparatus from corrosive gases or moisture, apply nonhardening sealant such as liquid gaskets to those threads for waterproofing.

• Specific cables shall be used as recommended by the “USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry,” published in 1994.

• In necessary, appropriate protective pipes (conduit or flexible pipes), ducts or trays shall be used for preventing the cable run (outside the cable glands) from damage.

• To prevent explosive atmosphere from being propagated form Zone 1 or 2 hazardous location to any different location or non-hazardous location through the protective pipe or duct, apply sealing of the protective pipes in the vicinity of individual boundaries, or fill the ducts with sand appropriately.

• When branch connections of cables, or cable connections with insulated cables inside the conduit pipes are made, a flameproof or increased-safety connection box shall be used. In this case, flameproof or increased-safety cable glands meeting the type of connection box must be used for cable connections to the box.

(2) Flameproof Metal Conduit Wiring

• For the flameproof metal conduit wiring or insulated wires shall be used as recommended by the USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry, published in

1994.

• For conduit pipes, heavy-gauge steel conduits conforming to JIS C 8305 Standard shall be used.

• Flameproof sealing fittings shall be used in the vicinity of the wiring connections, and those fittings shall be filled with sealing compounds to complete sealing of the apparatus. In addition, to prevent explosive gases, moisture, or flame caused by explosion form being propagated through the conduit, always provide sealing fittings to complete sealing of the conduit in the following locations:

(a) In the boundaries between the hazardous and non-

hazardous locations.

(b) In the boundaries where there is a different

classification of hazardous location.

• For the connections of the apparatus with a conduit pipe or its associated accessories, G-type parallel pipe threads (JIS B 0202) shall be used to provide a minimum of five-thread engagement to complete tightness. In addition, since these parallel threads do not have sealing property, nonhardening sealant such as liquid gaskets shall thus be applied to those threads for ensuring waterproofness.

• If metal conduits need flexibility, use flameproof flexible fittings.

EX-B03E

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT

6.Maintenance of Flameproof Apparatus

To maintain the flameproof apparatus, do the following. (For details, see Chapter 10 “MAINTENANCE OF EXPLOSIONPROTECTED ELECTRICAL INSTALLATION” in the USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry.)

(1) Maintenance servicing with the power on.

Flameproof apparatus shall not be maintenance-serviced with its power turned on. However, in cases where maintenance servicing is to be conducted with the power turned on, with the equipment cover removed, always use a gas detector to check that there is no explosive gas in that location. If it cannot be checked whether an explosive gas is present or not, maintenance servicing shall be limited to the following two items:

(a) Visual inspection

Visually inspect the flameproof apparatus, metal conduits, and cables for damage or corrosion, and other mechanical and structural defects.

(b) Zero and span adjustments

These adjustments should be made only to the extent that they can be conducted from the outside without opening the equipment cover. In doing this, great care must be taken not to cause mechanical sparks with tools.

(2) Repair

If the flameproof apparatus requires repair, turn off the power and transport it to a safety (non-hazardous) location. Observe the following points before attempting to repair the apparatus.

(a) Make only such electrical and mechanical repairs as will

restore the apparatus to its original condition. For the flameproof apparatus, the gaps and path lengths of joints and mating surfaces, and mechanical strength of enclosures are critical factors in explosion protection. Exercise great care not to damage the joints or shock the enclosure.

(b) If any damage occurs in threads, joints or mating

surfaces, inspection windows, connections between the transmitter and terminal box, shrouds or clamps, or external wiring connections which are essential in flameproofness, contact Yokogawa Electric Corporation.

requirements for flameproof apparatus (however, bear in mind that the apparatus must always be restored to its original condition). If you attempt to repair the flameproof apparatus, company-specified components shall be used.

(d) Before starting to service the apparatus, be sure to check

all parts necessary for retaining the requirements for flameproof apparatus. For this, check that all screws, bolts, nuts, and threaded connections have properly been tightened.

(3) Prohibition of specification changes and

modifications

Do not attempt to change specifications or make modifications involving addition of or changes in external wiring connections.

7.Selection of Cable Entry Devices for Flameproof Type

IMPORTANT

The cable glands (cable entry devices for flameproof type) conforming to IEC Standards are certified in combination with the flameproof apparatus. So, Yokogawa-specified cable entry devices for flameproof type shall be used to meet this demand.

References:

(1) Type Certificate Guide for Explosion-Protected

Construction Electrical Machinery and Equipment (relating to Technical Standards Conforming to International Standards), issued by the Technical Institution of Industrial Safety, Japan

(2) USER’S GUIDELINES for Electrical Installations for

Explosive Gas Atmospheres in General Industry (1994), issued by the Japanese Ministry of Labour, the Research Institute of Industrial Safet

CAUTION

Do not attempt to re-process threaded connections or refinish joints or mating surfaces.

internal mechanisms may be repaired by component replacement, as this will not directly affect the

EX-B03E

REVISION RECORD

Title: Model EJA438W and EJA438N Diaphragm Sealed Gauge Pressure

Transmitter

Manual No.: IM 1C22J1-01E

Edition Date Page Revised Item

8th

9th

10th

Mar. 1998 1-1

5-1 10-1 10-3 10-6 2-9+

CMPL

Sep. 1998

Feb. 2000

2-14

2-15 7-19 10-3

10-4

CMPL

5.1

10.1.1

10.1.2

10.1.3

CMPL 1C22A1-02E 3rd 4th Page 2

2.10

7.3.2(8)

10.1.2

CMPL 1C22A1-02E 4th 5th Page 2

CMPL 1C22J3-01E 1st 2nd Page 4

Changed to Electronic File Format. Revised a book in a new format.

Major Revised Items:

• Add FOUNDATION Fieldbus protcol version to ‘NOTE’ notice.

• Add Item 6 to the Wiring Precautions.

• Add FOUNDATION Fieldbus protocol.

• Add Output signal code F .

• Add Optional code A1.

• Change the figure of terminal configuration.

• Add Item 7-2.

• Delete EMC Conformity Standards Tables and move the section to page 2-14.

• Remove Page 2-15.

• Correction made in BURN OUT figure.

• Add Process flange size/material code F and C.

• Add Electrical connection code 7, 8, and 9.

• Add Process flange size/material code F and J.

• Add Elactrical connection code 7, 8, and 9.

• Add Part No. to Item 3 (For PG13.5 and M20).

• Add Part No. to Item 10 (For 1/2 NPT, Pg13.5, and M20).

• Add 80 mm / 3-inch to Flange Rating and SUS316 Stainless Steel Part No. to Flange material in Table 1.

(The location of contents and the associated page numbers may not coincide with the one in old editions.)

1. Explosion class and option code of JIS flameproof approval. Explosion class: Ex ds IIC T4(old) to Ex do IIC T4X(new). Option code: /JF1(old) to /JF3(new)

2. Option code for flameproof packing adapter for JIS flameproof approval. Option code: /G1 and /G2(old) to /G11 and /G12(new)

3. Add “Pa” and “hPa” as the unit for calibration range.

4. Part number change for CPU Board Assembly.

2-8 2-9 5-1 5-3

7-4

–

9-6

CMPL

2.9

2.10

5.2

5.4.2

7.3.1 –

9.3 CMPL 1C22A1-02E 5th 6th

CMPL 1C22J3-01E 3rd

• Add Figure 2.3 Example of using DCS.

• Add AS/NZS 2064 1/2 to EMI, EMC Conformity Standards.

• Add selection in the case of JIS flameproof type.

• Change option code for flame packing adapter.

Option code: G1 and G2 G11 and G12 Change Applicable cable O.D. and Identifying mark. Part number: G9601AH G9601AM Change the figure of flame proof packing adapter in Figure 5.4.2c.

• Add Pa and hPa to C20 and D31.

• Installation and Operating Precautions for JIS Intrinsically Safe

and Explosionproof Equipment: EX-A01E EX-A03E, EX-B01E EX-B03E

• Add Optional code F1.

• Change a format.

• Change and add Part No. of Item 7-1, CPU assembly:

Change; F9342BC F9342BB, F9342BK F9342BJ Add; F9342AF, F9342AM

• Change Part No. of Item 10, Plug:

G9330DK G9330DP

• Change a format.

REVISION RECORD.EPS

IM 1C22J1-01E

Blank Page

Yokogawa EJA438 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1. INTRODUCTION

WARRANTY

2. HANDLING CAUTIONS

2.2 Unpacking

2.3 Storage

2.1 Model and Specifications Check

2.4 Selecting the Installation Location

2.5 Pressure Connection

2.6 Waterproofing of Cable Conduit Connections

2.7 Restrictions on Use of Radio Transceiver

2.8 Insulation Resistance and Dielectric Strength Test

2.9.1 FM Approval

2.9.2 CSA Certification

2.9.3 SAA Certification

2.9.4 CENELEC (KEMA)/IEC (KEMA) Certification

2.9.5 JIS Certification

2.10 EMC Conformity Standards

3. COMPONENT NAMES

4. INSTALLATION

4.1 Precautions

4.2 Mounting the Diaphragm Seals

4.3 Transmitter Mounting

4.4 Affixing the Teflon Film

4.5 Rotating Transmitter Section

5. WIRING

5.1 Wiring Precautions

5.3 Connections of External Wiring to Terminal Box

5.3.1 Power Supply Wiring Connection

5.3.2 External Indicator Connection

5.3.4 Check Meter Connection

5.4.1 Loop Configuration

5.4 Wiring

5.4.2 Wiring Installation

5.5 Grounding

5.6 Power Supply Voltage and Load Resistance

6. OPERATION

6.2 Zero Point Adjustment

6.3 Starting Operation

6.4 Shutting Down Operation

6.5 Setting the Range Using the Range-setting Switch

7.1.1 Connecting the BT200

BT200 Operating Procedures

7.2.1 Key Layout and Screen Display

7.1.2 Conditions of Communication Line

7.2.2 Operating Key Functions

7.2.3 Calling Up Menu Addresses Using the Operating Keys

7.3 Setting Parameters Using the BT200

7.3.1 Parameter Summary

7.3.2 Parameter Usage and Selection

7.3.3 Setting Parameters

(3) Damping Time Constant Setup

(4) Output Signal Low Cut Mode Setup

(5) Integral Indicator Scale Setup

(6) Unit Setup for Displayed Temperature

(7) Operation Mode Setup

(11) Zero Point Adjustment

7.4 Displaying Data Using the BT200

7.4.1 Displaying Measured Data

7.4.2 Display Transmitter Model and Specifications

7.5 Self-Diagnostics

7.5.1 Checking for Problems

7.5.2 Errors and Countermeasures

8. MAINTENANCE

8.1 Overview

8.3 Calibration

8.4.1 Replacing the Integral Indicator

8.4.2 Replacing the CPU Assembly

8.5 Troubleshooting

8.5.2 Troubleshooting Flow Charts

9. GENERAL SPECIFICATIONS

9.1 Standard Specifications

9.2 Model and Suffix Codes

9.3 Optional Specifications

9.4 Dimensions

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT