YOKOGAWA YTA110/CU1, YTA310/CU1, YTA320/CU1 User Manual

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User's Manual

YTA Series Temperature T ransmitter s (Hard ware)

[Style: S2]

IM 01C50B01-01E

Yokogawa Electric Corporation

IM 01C50B01-01E

8th Edition

CONTENTS

1. PREFACE ......................................................................................................1-1

䊏 Notes on the Instruction Manual............................................................... 1-1

䊏 Notes on Safety and Modifications ........................................................... 1-1

䊏 For Safety Using ....................................................................................... 1-1

䊏 Warranty.................................................................................................... 1-2

䊏 Trade Mark................................................................................................ 1-2

2. NOTES ON HANDLING ................................................................................2-1

2.1 Nameplate ........................................................................................... 2-1

2.2 Transport ............................................................................................. 2-1

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

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

2.5 Use of a Transceiver........................................................................... 2-2

2.6 Insulation Resistance Test and Withstand Voltage Test.................... 2-2

2.6.1 Insulation resistance test procedure ............................................ 2-2

2.6.2 Withstand voltage test procedure ................................................ 2-3

2.7 Installation of Explosion Protected Type Transmitters ....................... 2-3

2.7.1 CSA Certification .......................................................................... 2-3

2.7.2 CENELEC ATEX (KEMA) Certification ........................................ 2-5

2.7.3 CENELEC (KEMA) Certification................................................... 2-8

2.7.4 FM Certification ............................................................................ 2-9

2.7.5 JIS Certification .......................................................................... 2-11

2.7.6 SAA Certification ........................................................................ 2-11

2.8 EMC Conformity Standards .............................................................. 2-12

3. PART NAMES AND FUNCTIONS ................................................................3-1

3.1 Part Names ......................................................................................... 3-1

3.2 Setting the Hardware Error Burnout Change-over Switch ................. 3-2

3.3 Built-in Indicator Display Function ...................................................... 3-2

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

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

5.1 Notes on Wiring .................................................................................. 5-1

5.2 Loop Construction ............................................................................... 5-1

5.3 Cable Selection ................................................................................... 5-2

5.3.1 Input signal Cable Selection ........................................................ 5-2

5.3.2 Output Signal Cable Selection ..................................................... 5-2

5.4 Cable and Terminal Connections ....................................................... 5-2

5.4.1 Input Terminal Connections ......................................................... 5-2

5.4.2 Output Terminal Connection ........................................................ 5-3

5.5 Wiring Cautions................................................................................... 5-4

5.6 Grounding............................................................................................ 5-5

IM 01C50B01-01E

CONTENTS

6. MAINTENANCE............................................................................................. 6-1

6.1 General................................................................................................ 6-1

6.2 Calibration ........................................................................................... 6-1

6.2.1 Selection of Equipment for Calibration ........................................ 6-1

6.2.2 Calibration Procedure................................................................... 6-1

6.3 Disassembly and Assembly ................................................................ 6-2

6.3.1 Replacement of Built-in Indicator ................................................. 6-3

6.3.2 Replacement of CPU Assembly................................................... 6-3

6.4 Troubleshooting................................................................................... 6-4

6.4.1 Basic Troubleshooting Flow ......................................................... 6-4

6.4.2 Example of Troubleshooting Flow................................................ 6-4

6.5 Integral Indicator and Error Display .................................................... 6-6

7. STANDARD SPECIFICATIONS .................................................................... 7-1

7.1 Standard Specifications ...................................................................... 7-1

7.2 Model and Suffix Codes...................................................................... 7-5

7.3 Optional Specifications........................................................................ 7-5

7.4 Dimensions.......................................................................................... 7-7

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF

EQUIPMENT........................................................................................ EX-B03E

Customer Maintenance Parts List ..................................... CMPL 01C50B01-02E

REVISION RECORD

IM 01C50B01-01E

1. PREFACE

The YTA temperature transmitter is fully factory-tested according to the specifications indicated on the order.

In order for the YTA temperature transmitter to be fully functional and to operate in an efficient manner, the instruction manual must be carefully read to become familiar with the functions, operation, and handling of the YTA.

This Instruction Manual gives instructions on handling, wiring and maintenance of YTA110, YTA310 and YTA320 temperature transmitters. Changing the parameter settings requires a terminal dedicated to the HART Protocol or the BRAIN Protocol. For details on how to set the parameters of these transmitters, refer to the “BRAIN Protocol” IM 0lC50T03-01E or “HART Protocol” IM 01C50T01-01E.

For FOUNDATION Fieldbus communication type, please refer to IM 01C50T02-01E in addition to this manual.

 Notes on the Instruction Manual

• This manual should be delivered to the end user.

• The information contained in this manual is subject to change without prior notice.

• The information contained in this manual, in whole or part, shall not be transcribed or copied without notice.

• In no case does this manual guarantee the merchant ability of the transmitter or its adaptability to a specific client need.

• Should any doubt or error be found in this manual, submit inquiries to your local dealer.

•No special specifications are contained in this manual.

• Changes to specifications, structure, and components used may not lead to the revision of this manual unless such changes affect the function and performance of the transmitter.

 Notes on Safety and Modifications

• Before handling the YTA, it is absolutely imperative that users of this equipment read and observe the safety instructions mentioned in each section of the manual in order to ensure the protection and safety of operators, the YTA itself and the system containing the transmitter. We are not liable for any accidents arising out of handling that does not adhere to the guidelines established in the safety instructions.

• No maintenance should be performed on explosionproof type temperature transmitters while the equipment is energized. If maintenance is required with the cover open, always first use a gas detector to check that no explosive gases are present.

• If the user attempts to repair or modify an explosionproof type transmitter and is unable to restore it to its original condition, damage to the explosionproof features result, leading to dangerous conditions. Contact your authorized Yokogawa Electric Corporation representative for repairs or modifications of an explosionproof type transmitter.

 For Safety Using

Please give your attention to the followings.

(a) Installation

• The instrument must be installed by an expert engineer or a skilled personnel. The procedures described about INSTALLATION are not permitted for operators.

•In case of high process temperature, care should be taken not to burn yourself because the surface of the case reaches a high temperature.

• All installation shall comply with local installation requirement and local electrical code.

(b) Wiring

• The instrument must be installed by an expert engineer or a skilled personnel. The procedures described about WIRING are not permitted for operators.

• Please confirm that voltages between the power supply and the instrument before connecting the power cables and that the cables are not powered before connecting.

• Please do not carry out except being written to a maintenance descriptions. When these procedures are needed, please contact nearest YOKOGAWA office.

•Care should be taken to prevent the build up of drift, dust or other material on the display glass and name plate. In case of its maintenance, soft and dry cloth is used.

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IM 01C50B01-01E

1. PREFACE

 Symbols used in this Instruction Manual

The YTA temperature transmitter and this manual use the following safety related symbols and signals.

WARNING

Contains precautions to protect against the chance of explosion or electric shock which, if not observed, could lead to death or serious injury.

CAUTION

Contains precautions to protect against danger, which, if not observed, could lead to personal injury or damage to the instrument.

IMPORTANT

Contains precautions to be observed to protect against adverse conditions that may lead to damage to the instrument or a system failure.

NOTE

Contains precautions to be observed with regard to understanding operation and functions.

Some of the diagrams in this instruction manual are partially omitted, described in writing, or simplified for ease of explanation. The screen drawings contained in the instruction manual may have a display position or characters (upper/lower case) that differ slightly from the full-scale screen to an extent that does not hinder the understanding of functions or monitoring of operation.

 Warranty

• The warranty period of the instrument is written on the estimate sheet that is included with your purchase. Any trouble arising during the warranty period shall be repaired free of charge.

• Inquiries with regard to problems with the instrument shall be accepted by the sales outlet or our local dealer representative.

• Should the instrument be found to be defective, inform us of the model name and the serial number of the instrument together with a detailed description of nonconformance and a progress report. Outline drawings or related data will also be helpful for repair.

• Whether or not the defective instrument is repaired free of charge depends on the result of our inspection.

 The following conditions shall not be

eligible for charge-exempt repair.

• Problems caused by improper or insufficient maintenance on the part of the customer.

• Trouble or damage caused by mishandling, misusage, or storage that exceeds the design or specification requirements.

• Problems caused by improper installation location or by maintenance conducted in a non-conforming location.

• Trouble or damage was caused by modification or repair that was handled by a party or parties other than our consigned agent.

• Trouble or damage was caused by inappropriate relocation following delivery.

•Trouble or damage was caused by fire, earthquake, wind or flood damage, lightning strikes or other acts of God that are not directly a result of problems with this instrument.

 Trade Mark

• HART is a trademark of the HART Communication Foundation.

• Registered trademarks or trademarks appearing in this manual are not designated by a TM or ® symbol.

• Other company names and product names used in this manual are the registered trademarks or trademarks of their respective owners.

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IM 01C50B01-01E

2. NOTES ON HANDLING

The YTA temperature transmitter is fully factory-

tested upon shipment. When the YTA is delivered, check the appearance for damage, and also check that the transmitter mounting parts shown in Figure 2.1 are included with your shipment. If “No Mounting Bracket” is indicated, no transmitter mounting bracket is included.

Nut for U-bolt

Mounting bracket

Spring washer

2.2 Transport

To prevent damage while in transit, leave the transmitter in the original shipping container until it reaches the installation site.

2.3 Storage

When an extended storage period is expected, observe the following precautions:

1. If at all possible, store the transmitter in factoryshipped condition, that is, in the original shipping container.

2. Choose a storage location that satisfies the following requirements.

•A location that is not exposed to rain or water.

•A location subject to a minimum of vibration or

impact.

• The following temperature and humidity range is

recommended. Ordinary temperature and humidity (25°C, 65%) are preferable.

Temperature: No Integral indicator –40 to 85°C

With Integral indicator –30 to 80°C

Humidity: 5 to 100% RH (at 40°C)

Transmitter fastening bolt

U-bolt

F0201.EPS

Figure 2.1 Transmitter mounting parts

2.1 Nameplate

The model name and configuration are indicated on

the nameplate. Verify that the configuration indicated in the “Model and Suffix Code” in Chapter 7 is in compliance with the specifications written on the order sheet.

Specification code

TEMPERATURE TRANSMITTER

YTA

DC24V

Made in Japan

Style code

Figure 2.2 Name plate

Model name

4~20mA DC

Serial No.

Factory-shipped range and unit

F0202.EPS

3. The performance of the transmitter may be impaired if stored in an area exposed to direct rain and water. To avoid damage to the transmitter, install it immediately after removal from shipping container. Follow wiring instructions in Chapter 5.

2.4 Choosing the Installation

Location

Although the temperature transmitter is designed to operate in a vigorous environment, to maintain stability and accuracy, the following is recommended:

(1) Ambient Temperature

It is preferable to not to expose the instrument to extreme temperatures or temperature fluctuations. If the instrument is exposed to radiation heat a thermal protection system and appropriate ventilation is recommended.

(2) Environmental Requirements

Do not allow the instrument to be installed in a location that is exposed to corrosive atmospheric conditions. When using the instrument in a corrosive environment, ensure the location is well ventilated. The unit and its wiring should be protected from exposure to rainwater.

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IM 01C50B01-01E

2. NOTES ON HANDLING

(3) Impact and Vibration

It is recommended that the instrument be installed in a location that is subject to a minimum amount of impact and vibration.

2.5 Use of a Transceiver

Although the temperature transmitter is designed to resist influence from high frequency noise; use of a transceiver in the vicinity of installation may cause problems. Installing the transmitter in an area free from high frequency noise (RFI) is recommended.

2.6 Insulation Resistance Test and Withstand Voltage Test

CAUTION

(1) Overvoltage of the test voltage that is so

small that it does not cause an dielectric breakdown may in fact deteriorate insulation and lower the safety performance; to prevent this it is recommended that the amount of testing be kept to a minimum.

(2) The voltage for the insulation resistance test

must be 500 VAC or lower, and the voltage for the withstand voltage test must be 500 VAC or lower. Failure to heed these guidelines may cause faulty operation.

(3) Where a built-in arrester is provided (suffix

code: /A), the voltage for the insulation resistance test must be 100 VDC or lower, and the voltage for the withstand voltage test must be 100 VAC or lower. Failure to heed these guidelines may cause faulty operation.

Follow the steps below to perform the test, the wiring of the transmission line must be removed before initiating testing.

2.6.1 Insulation resistance test procedure

 Testing between the output terminal and

input terminal

1. Lay transition wiring between the + terminal, the -

terminal, and the check terminal of the terminal box.

2. Lay wiring across terminals 1, 2, 3, and 4 of the

terminal box.

3. Connect the insulation resistance meter (with the

power turned OFF) between the transition wiring of Steps 1 and 2 above. The polarity of the input terminals must be positive and that of the output terminals must be negative.

4. Turn the power of the insulation resistance meter ON and measure the insulation resistance. The duration of the applied voltage must be the period during which 100M⍀ or more is confirmed (or 20M⍀ if the unit is equipped with a built-in arrester).

5. Upon completion of the test, remove the insulation resistance meter, connect a 100K⍀ resistor between the transition wiring, and allow the electricity to discharge. Do not touch the terminal with your bare hands while the electricity is discharging for more than 1 second.

 Testing between the output terminal and

grounding terminal

1. Lay transition wiring between the + terminal, the terminal, and the check terminal of the terminal box, then connect an insulation resistance meter (with the power turned OFF) between the transition wiring and the grounding terminal. The polarity of the transition wiring must be positive and that of the grounding terminal must be negative.

2. Turn the power of the insulation resistance meter ON and measure the insulation resistance. The duration of the applied voltage must be the period during which 100M⍀ or more is confirmed (or 20M⍀ if the unit is equipped with a built-in arrester).

3. Upon completion of the test, remove the insulation resistance meter, connect a 100K⍀ resistor between the transition wiring and the grounding terminal, and allow the electricity to discharge. Do not touch the terminal with your bare hands while the electricity is discharging for more than 1 second.

 Testing between the input terminal and

grounding terminal

1. Lay transition wiring between terminals 1, 2, 3, 4 and 5 of the terminal box, and connect the insulation resistor (with the power turned OFF) between the transition wiring and the grounding terminal. The polarity of the transition wiring must be positive and that of the grounding terminal must be negative.

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IM 01C50B01-01E

2. NOTES ON HANDLING

2.6.2 Withstand voltage test procedure

 Testing between the output terminal and the

input terminal

1. Lay transition wiring between the + terminal, the – terminal, and the check terminal of the terminal box.

2. Lay transition wiring between terminals 1, 2, 3, 4 and 5 of the terminal box.

3. Connect the withstand voltage tester (with the power turned OFF) between the transition wiring shown in Steps 1 and 2 above.

4. After setting the current limit value of the withstand voltage tester to 10mA, turn the power ON, and carefully increase the impressed voltage from 0V to the specified value.

5. The voltage at the specified value must remain for a duration of one minute.

6. Upon completion of the test, carefully reduce the voltage so that no voltage surge occurs.

 Testing between the output terminal and the

grounding terminal

1. Lay the transition wiring between the + terminal, the

- terminal and the check terminal of the terminal box, and connect the withstand voltage tester (with the power turned OFF) between the transition wiring and the grounding terminal. Connect the grounding side of the withstand voltage tester to the grounding terminal.

2. After setting the current limit value of the withstand voltage tester to 10mA, turn the power ON, and gradually increase the impressed voltage from 0V to the specified value. .

3. The voltage at the specified value must remain for a duration of one minute.

4. Upon completion of the test, carefully reduce the voltage so that no voltage surge occurs.

 Testing between the input terminal and the

grounding terminal

1. Lay the transition wiring across terminals 1, 2, 3, 4, and 5 of the terminal box and connect the withstand voltage tester (with the power turned OFF) between the transition wiring and the grounding terminal. Connect the grounding side of the withstand voltage tester to the grounding terminal.

2. After setting the current limit value of the withstand voltage tester to 10mA, turn the power ON, and gradually increase the impressed voltage from 0V to the specified value.

3. The voltage at the specified value must remain for a duration of one minute.

4. Upon completion of the test, carefully reduce the voltage so that no voltage surge occurs.

2.7 Installation of Explosion Protected T ype Transmitters

In this section, further requirements and differences and for explosionproof type instrument are described. For explosionproof type instrument, the description in this chapter is prior to other description in this users manual.

CAUTION

To preserve 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.

2.7.1 CSA Certification

Model YTA110/CU1, YTA310/CU1 and YTA320/CU1 temperature transmitters can be selected the type of protection (CSA Intrinsically Safe, Non-incendive, or 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.

a) CSA Intrinsically Safe Type/Non-incendive

Type

Caution for CSA Intrinsically safe type. (Following contents refers “DOC No. ICS008-A13 P.1-1 and P.12”)

Note 1. Model YTA110/CU1, YTA310/CU1 and

YTA320/CU1 temperature transmitters are applicable for use in hazardous locations:

• Intrinsically Safe for Class I, II, III, Division 1,

Groups A, B, C, D, E, F & G.

• Non-incendive for Class I, II, Division 2, Groups A,

B, C, D, E, F & G, Class III, Division 1.

• Encl. “Type 4X”

• Temperature Class: T4

• Ambient temperature: –40 to 60°C

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IM 01C50B01-01E

2. NOTES ON HANDLING

Note 2. Entity Parameters (Electrical/Non-

incendive field wiring parameters)

• [Supply Circuit] Vmax = 30 V, Imax = 165 mA, Pmax = 0.9 W Ci = 18 nF, Li = 730 µH

• [Associated apparatus] Voc 30 V, Isc 165 mA, Pmax 0.9 W

• [Sensor Circuit] Voc = 9 V, Isc = 40 mA, Po = 90 mW, Ca = 1 µF, La = 10 mH

Note 3. Installation

• All wiring shall comply with Canadian Electrical

Code Part I and Local Electrical Codes.

• For the sensor circuitry, the above parameters for

sensor circuit must be taken into account.

• Dust-tight conduit seal must be used when installed in

class II and III environments.

• In any used safety barrier, output current must be

limited by a resistor 'R' such that Isc=Voc/R.

• The safety barrier must be CSA certified, and the

input voltage of the barrier must be less than 250Vrms/Vdc.

• For non-incendive type, general purpose equipment

must be CSA certified and the equipment which have non-incendive field wiring parameters.

• The instrument modification or parts replacement by

other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Canadian Standards Intrinsically safe and nonincendive Certification.

[Intrinsically Safe]

Hazardous Location

YTA Series Temperature Transmitter

1 2 3

Sensor

4 5

Hazardous Location

Supply

–

[Non-incendive]

Nonhazardous Location

Safety Barrier

–

Nonhazardous Location

General Purpose Equipment

+ –

b) CSA Explosionproof Type

Caution for CSA Explosionproof type

Note 1. Model YTA110/CU1, YTA310/CU1 and

YTA320/CU1 temperature transmitters are applicable for use in hazardous locations:

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

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

• Encl “Type 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 Canadian Electrical Code Part I and Local Electrical Codes.

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

WARNING: A SEAL SHALL BE INSTALLED

WITHIN 50 cm OF THE ENCLOSURE. UN SCELLEMENT DOIT ÊTRE INSTALLÉ À MOINS DE 50 cm DU BOÎTIER.

• When installed in Division 2, “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED”.

Note 3. Operation

• Keep strictly the “WARNING” on the label attached on the transmitter.

WARNING: OPEN CIRCUIT BEFORE RE-

MOVING COVER. OUVRIR LE CIRCUIT AVANT D´ENLEVER LE COUVERCLE.

• Take care not to generate mechanical spark when access to the instrument and peripheral devices in 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 Canadian Standards Explosionproof Certification.

YTA Series Temperature Transmitter

1 2 3 4

Sensor

Supply

+ –

Not Use Safety Barrier

General Purpose Equipment

+ –

F0204.EPS

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IM 01C50B01-01E

2. NOTES ON HANDLING

HAZARDOUS LOCATIONS DIVISION 1

50 cm Max.

Sensor

Sealing Fitting

Certified/Listed Temper ature Sensor Explosionproof Class I, Groups C and D Dustignitionproof Class II, Groups E, F and G, Class III

Wiring method shall be suitable for the specified hazardous locations.

Sensor

Certified/Listed Temper ature Sensor Explosionproof Class I, Groups C and D Dustignitionproof Class II, Groups E, F and G, Class III

Wiring method shall be suitable for the specified hazardous locations.

YTA Series

HAZARDOUS LOCATIONS DIVISION 2 YTA Series

50 cm Max.

Conduit

Sealing Fitting

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

F0203.EPS

2.7.2 CENELEC ATEX (KEMA) Certification

Model YTA110/KU2, YTA310/KU2 and YTA320/ KU2 temperature transmitters can be selected the type of protection (CENELEC ATEX(KEMA) Intrinsically Safe or CENELEC ATEX(KEMA) Flameproof or CENELEC ATEX Type of Protection “n”) 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.

(1) Technical Data a) CENELEC ATEX (KEMA) Intrinsically Safe

Type

Caution for CENELEC ATEX (KEMA) Intrinsically safe type

Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters for potentially explosive atmospheres:

• No. KEMA 02ATEX1026X

•Type of Protection and Marking code: II 1G EEx ia IIC T5, T4

• Temperature Class: T5, T4

• Ambient Temperature: –40 to 70°C for T4, –40 to 50°C for T5

• Enclosure: IP67

Note 2. Electrical Data

•In type of explosion protection intrinsic safety II 1G EEx ia IIC only for connection to a certified intrinsically safe circuit with following maximum values:

• [Supply circuit]

Ui = 30 V Ii = 165 mA Pi = 900 mW Effective internal capacitance, Ci = 20 nF Effective internal inductance, Li = 660 µH

• [Sensor circuit]

Uo = 8.6 V Io = 30 mA Po = 70 mW Max. allowed external capacitance, Co = 3 µF Max. allowed external inductance, Lo = 20 mH

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.

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2. NOTES ON HANDLING

Note 5. Special condition for safe use

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

[Installation Diagram]

Hazardous Location

Transmitter

1 2 3 4

Sensor

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

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

Supply

–

Nonhazardou Location

Safety Barrier

+ –

F0208.EPS

b) CENELEC ATEX (KEMA) Flameproof Type

Caution for CENELEC ATEX (KEMA) Flameproof Type

Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters for potentially explosive atmospheres:

• No. KEMA 02ATEX2155

• Type of Protection and Marking Code: II 2G EEx d IIC T5, T6

• Temperature Class: T5, T6

• Ambient Temperature: –40 to 80°C for T5, –40 to 75°C for T6

• Enclosure: IP67

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 strictly the “WARNING” on the label on the transmitter.

WARNING: AFTER DE-ENERGIZING, DELAY

5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP. ⭌ 70⬚C, USE THE HEATRESISTING CABLES OF HIGHER THAN 90⬚C.

• Take care not to generate mechanical spark when access to the instrument and peripheral devices in 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.

c) CENELEC ATEX Type of Protection “n”

WARNING

When using a power supply not having a nonincendive circuit, please pay attention not to ignite in the surrounding flammable atmosphere. In such a case, we recommend using wiring metal conduit in order to prevent the ignition.

Caution for CENELEC ATEX Type of Protection “n”

Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking Code: II 3G EEx nL IIC T5, T4

• Temperature Class: T5, T4

• Ambient Temperature: –40 to 50°C for T5, –40 to 70°C for T4

• Enclosure: IP67

Note 2. Electrical Data

[Supply circuit]

Ui = 30 V Effective internal capacitance, Ci = 20 nF Effective internal inductance, Li = 660 µH

[Sensor circuit]

Uo= 8.6 V Io = 30 mA Po = 70 mW Max. allowed external capacitance, Co = 3 µF Max. allowed external capacitance, Lo = 20 mH

Note 3. Installation

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

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2. NOTES ON HANDLING

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 Type of Protection “n” Certification.

[Installation Diagram]

Hazardous Location

Nonhazardou Location

(Zone 2 only)

Temperature Transmitter

Power Supply

Suppry

–

F0212.EPS

Ratings of the Power Supply are as follows:

Maximum Voltage: 30 V

(2) Electrical Connection

The type of electrical connection is stamped near the electrical connection port according to the following marking.

(5) Maintenance and Repair

WARNING

The instrument modification or parts replacement by other than authorized Representative of Yokogawa Electric Corporation is prohibited and will void the certification.

(6) Name Plate

 Name plate for type n protection

TEMPERATURE TRANSMITTER

YTA

10.5⫺30 (42) V DC

TOKYO 180-8750 JAPAN

:Refer to USER’S MANUAL.

4⫺20 mA DC

0344

No. KEMA 02ATEX1026 X EEx ia IIC T5 Tamb -40 TO 50⬚C EEx ia IIC T4 Tamb -40 TO 70⬚C ENCLOSURE: IP67 SUPPLY INPUT Ui=30V, Ii=165mA, Pi=900mV Ci=20nF, Li=660␮H SENSOR OUTPUT Uo=8.6V, Io=30mA, Po=70mW Co=3␮F, Lo=20mH

2GII II 3G

No. KEMA 02ATEX2155 EEx d IIC T6 Tamb -40 TO 75⬚C EEx d IIC T5 Tamb -40 TO 80⬚C ENCLOSURE: IP67

WARNING

AFTER DE-ENERGIZING, DELAY 5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP.⭌70⬚C, USE THE HEAT-RESISTING CABLES⭌90⬚C.

Cross out unnecessary marking other than the selected type of protection. When II 3G is selected, cross out 0344.

EEx nL IIC T5 Tamb -40 TO 50⬚C EEx nL IIC T4 Tamb -40 TO 70⬚C ENCLOSURE: IP67 SUPPLY INPUT Ui=30V Ci=20nF, Li=660␮H SENSOR OUTPUT Uo=8.6V, Io=30mA Po=70mW, Co=3␮F Lo=20mH

F0298.EPS

MODEL: Specified model code. SUFFIX: Specified suffix code. STYLE: Style code. SUPPLY: Supply voltage. NO.: Serial number and year of production*1. OUTPUT: Output signal. FACTORY CAL: Specified calibration range.

TOKYO 180-8750 JAPAN: The manufacturer name and the address*2.

Location of the marking

F0200.EPS

(3) Installation

WARNING

All wiring shall comply with local installation requirement and local electrical code.

(4) Operation

WARNING

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

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

*1: (a) The production year for the serial number

starting with other than “S.”

The third figure from the last shows the last one figure of the year of production. For example, the production year of the product engraved in “NO.” column on the name plate as follows is 2001.

12A819857 132

The year 2001

(b) The production year for the serial number

starting with “S.”

The third and fourth figures from the left show the last two figures of the year of production. For example, the production year of the product engraved in “NO.” column on the name plate as follows is 2001.

S201D0229335

The year 2001

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

following address.

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

2-7

IM 01C50B01-01E

2. NOTES ON HANDLING

2.7.3 CENELEC (KEMA) Certification

Model YTA110/KU1, YTA310/KU1 and YTA320/ KU1 temperature transmitters 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,

Note 2. In order to avoid confusion, unnecessary

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

a) CENELEC (KEMA) Intrinsically Safe Type

Caution for CENELEC (KEMA) Intrinsically safe type

Note 1. Model YTA110/KU1, YTA310/KU1 and

YTA320/KU1 temperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking code: EEx ia IIC

• Temperature Class: T4, T5

• Ambient Temperature: –40 to 70°C for T4, –40 to 50°C for T5

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:

• [Supply circuit]

Ui = 30 V Ii = 165 mA Pi = 0.9 W Effective internal capacitance, Ci = 20 nF Effective internal inductance, Li = 660 µH

• [Sensor circuit]

Uo = 8.6 V Io = 30 mA Po = 70 mW Max. allowed external capacitance = 3 µF Max. allowed external inductance = 20 mH

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

1 2 3 4

Sensor

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

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

Supply

–

Nonhazardou Location

Safety Barrier

+ –

F0208.EPS

b) CENELEC (KEMA) Flameproof Type

Caution for CENELEC (KEMA) Flameproof Type

Note 1. Model YTA110/KU1, YTA310/KU1 and

YTA320/KU1 temperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking Code: EEx d IIC T6 Temperature Class: T6

• Ambient Temperature: –40 to 75°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 strictly the “WARNING” on the label on the transmitter.

WARNING: WAIT 5 MIN. AFTER POWER-

DISCONNECTION, BEFORE OPENING THE ENCLOSURE.

WHEN THE AMBIENT TEMP. ⭌

70⬚C, USE THE HEATRESISTING CABLES OF HIGHER

THAN 90⬚C

• Take care not to generate mechanical spark when access to the instrument and peripheral devices in 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.

2-8

IM 01C50B01-01E

2. NOTES ON HANDLING

c) IEC (KEMA) Type of Protection “n”

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

Note 1. Model YTA110/KU1, YTA310/KU1 and

YTA320/KU1 ditemperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking Code: Ex nC IIC T5, T4

• Temperature Class: T5, T4

• Ambient Temperature: –40 to 50°C for T5, –40 to 70°C for T4

• Enclosure: IP67

Note 2. Electrical Data

Ui = 30 V Ii = 150 mA (terminals + and –)

Note 3. Installation

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

Note 4. Operation

• Keep strictly the “WARNING” on the label on the transmitter.

WARNING: WAIT 5 MIN. AFTER POWER-

DISCONNECTION, BEFORE OPENING THE ENCLOSURE.

WHEN THE AMBIENT TEMP. ⭌

70⬚C, USE THE HEATRESISTING CABLES OF HIGHER

THAN 90⬚C

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 Type of Protection “n” Certification.

[Installation Diagram]

Hazardous Location (Zone 2 only)

Temperature Transmitter

Suppry

–

Ratings of the Power Supply are as follows:

Maximum Voltage: 30 V Maximum Current: 150 mA

Nonhazardou Location

Power Supply

+ –

F0212.EPS

2.7.4 FM Certification

a) FM Intrinsically Safe Type

Caution for FM Intrinsically safe type.

Note 1. Model YTA /FU1 temperature transmitter

is 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.

• Outdoor hazardous locations, NEMA 4X.

• Temperature Class: T4

• Ambient temperature: –40 to 60°C

Note 2. Entity Parameters of the temperature

transmitter:

• Supply Circuit (+ and -) •Sensor Circuit ( 1 to 5 )

Vmax : 30 V Voc/Vt : 9 V Imax : 165 mA Isc/It : 40 mA Pmax : 0.9 W Ca : 1 µF Ci : 18 nF La : 10 mH Li : 730 µH

• For the sensor input circuitry, these entity parameters must be taken into account when installed.

• Installation Requirements between temperature transmitter and safety barrier:

Voc Vmax, Isc Imax, Ca Ci + Ccable, La

Li + Lcable

Voc , Isc, Ca and La are parameters of the safety

barrier.

Note 3. Installation

• The safety barrier must be FM approved.

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

•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).

• Intrinsically safe sensor must be FMRC Approved or be simple apparatus (a device which will neither generate nor store more than 1.2 V, 0.1 A, 25 mW or 20 µJ, ex. switches, thermocouples, LED’s or RTD’s).

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

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.

2-9

IM 01C50B01-01E

2. NOTES ON HANDLING

[Intrinsically Safe]

Hazardous Location

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

Intrinsically Safe Sensor or Simple Apparatus

Temperature Transmitter

1 2 3 4

Sensor

Supply

+ –

Nonhazardous Location

General Purpose Equipment

+–

Safety Barrier

–

F0210.EPS

b) FM Non-incendive Type

Caution for FM Non-incendive type.

Note 1. Model YTA /FU1 temperature transmitter

is applicable for use in hazardous locations

• Non-incendive 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. Non-incendive field wiring Parameters of

the temperature transmitter:

• Supply Circuit (+ and -) •Sensor Circuit ( 1 to 5 )

Vmax : 30 V Voc/Vt : 9 V Imax : 165 mA Isc/It : 40 mA Pmax : 0.9 W Ca : 1 µF Ci : 18 nF La : 10 mH Li : 730 µH

• For the sensor input circuitry, these non-incendive parameters must be taken into account when installed.

• Installation Requirements between temperature transmitter and general purpose equipment:

Voc Vmax, Isc Imax, Ca Ci + Ccable, La

Li + Lcable

Voc , Isc, Ca and La are non-incendive field wiring

parameters of general purpose equipment.

Note 3. Installation

• The general purpose equipment must be FM approved which have non-incendive field wiring parameters.

•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).

• non-incendive sensor must be FMRC Approved or be simple apparatus (a device which will neither generate nor store more than 1.2 V, 0.1 A, 25 mW or 20 µJ, ex. switches, thermocouples, LED’s or RTD’s).

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

Note 4. Maintenance and Repair

[Nonincendive]

Hazardous Location

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

Non-incendive Sensor or Simple Apparatus

Temperature Transmitter

1 2 3 4

Sensor

Supply

–

Nonhazardous Location

General Purpose Equipment

+ –

c) FM Explosionproof Type

Caution for FM Explosionproof type

Note 1. Model YTA /FU1 and YTA /FF1 tempera-

ture transmitters are applicable for use in hazardous locations:

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

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

• Enclosure rating: 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.

• “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED”.

2-10

IM 01C50B01-01E

F0211.EPS

2. NOTES ON HANDLING

Note 3. Operation

• Keep strictly the “WARNING” on the nameplate attached on the transmitter.

WARNING: OPEN CIRCUIT BEFORE RE-

MOVING COVER. “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED”. INSTALL IN ACCORDANCE WITH THE INSTRUCTION MANUAL IM 1C50B1.

• Take care not to generate mechanical spark when access to the instrument and peripheral devices in 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.

2.7.5 JIS Certification

a) JIS Flameproof Type

The model YTA /JF3 temperature transmitter, which has 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, is designed for hazardous areas where explosive gases and/or inflammable vapors may be present. (This allows installation in Division 1 and 2 areas) To preserve 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 Flameproof Equipment” at the end of this manual.

WARNING

The terminal cover should not be opened at least for three minutes after the power is turned off. The terminal section of the flameproof YTA series is made of resin-filled, explosion-protected construction. The technical standards for this flameproof construction require that the possibility of explosion resulting from a prospective short-circuit current*2 of up to 4000 A be prevented even for cases when external power supply circuits are short-circuited accidentally. Install a fuse or a circuit breaker having a breaking capacity of at least 4000 A in the higher-order power line connected to the YTA

series. The breaking capacity refers to the upper limit of current that can be cut off. Normally, a fuse or a circuit breaker having a breaking capacity of greater than 5000 A is used in power supply circuits. Confirm that this is true with your factory. No extra measures need be taken after the confirmation. Note that the rated current of the YTA series in terms of explosion protection is 4 to 20 mA; keep the input current of the YTA series within the appropriate range.

*2: Refers to a current that flows when a fuse in a circuit is

substituted with a connecting metal piece having virtually no impedance and the circuit is then shorted. For AC circuits, this current is represented by a root-mean-square value (JIS C6575).

2.7.6 SAA Certification

Model YTA110/SU1, YTA310/SU1 and YTA320/SU1 temperature transmitters can be selected the type of protection (SAA Intrinsically Safe, Type of Protection “n” or Flameproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,

Note 2. In order to avoid confusion, cross out

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

a) SAA Intrinsically Safe/Type N Type

Caution for SAA Intrinsically safe/Type n type

Note 1. Model YTA110/SU1, YTA310/SU1 and

YTA320/SU1 temperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking code: Ex ia IIC T4 (Tamb=70°C) IP66/67 Zone 0 Ex n IIC T4 (Tamb=70°C) IP66/67 Zone 2

• Ambient Temperature: –40 to 70°C

Note 2. Entity Parameter

• In type of explosion protection only for connection

to a certified intrinsically safe/type n circuit with following maximum values:

[Input parameters (terminals +&-/C)]

Maximum Input Voltage(Ui) = 30 V Maximum Input Current(Ii) = 165 mA Maximum Input Power(Pi) = 0.9 W Maximum Internal Capacitance(Ci) = 30.2 nF Maximum Internal Inductance(Li) = 738 µH

2-11

IM 01C50B01-01E

2. NOTES ON HANDLING

NOTE

[Output parameters (terminals 1 to 5)]

Maximum Output Voltage(Uo) = 8.6 V Maximum Output Current(Io) = 30 mA Maximum Output Power(Po) = 62 mW Maximum External Capacitance = 1 µF Maximum External Inductance = 20 mH Maximum External Connected L/R = 0.5mH/⍀

Note 3. Installation

•All wiring shall comply with Australian Standards.

• The input and output cables are to be installed either as seperate cables or as seperate screened circuits.

• Certified IP66/67 glands or plugs must be used on the enclosure cable entries.

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 SAA Certification.

[Installation Diagram for intrinsically safe type]

Hazardous Location

(Zone 0)

Transmitter

1 2 3

Sensor

4 5

Hazardous Location

(Zone 2)

Transmitter

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

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

Supply

–

[ Installation Diagram for Type n ]

Suppry Power Supply

–

Nonhazardous Location

Safety Barrier

+ –

Nonhazardous Location

+ –

–

F2013.EPS

b) SAA Flameproof Type

Caution for SAA Flameproof Type

Note 1. Model YTA110/SU1, YTA310/SU1 and

YTA320/SU1 temperature transmitters for potentially explosive atmospheres:

• Type of Protection and Marking Code: Ex d IIC T6(Tamb 75°C) IP66/67 Zone 1

• Ambient Temperature: –40 to 75°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 Australian Standards.

•The cable entry devices shall be of a certified

flameproof type, suitable for the conditions of use.

Note 4. Operation

• Keep strictly the “WARNING” on the label on the

transmitter.

WARNING: WAIT 5 MIN. AFTER POWER-

DISCONNECTION, BEFORE

OPENING THE ENCLOSURE. WHEN THE AMBIENT TEMP. ⭌ 70⬚C, USE THE HEATRESISTING CABLES OF HIGHER THAN 90⬚C

• Take care not to generate mechanical spark when access to the instrument and peripheral devices in 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 SAA Certification.

2.8 EMC Conformity Standards

EN61326, AS/NZS 2064

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 YTA Series Transmitters to the plant.

2-12

IM 01C50B01-01E

3. PART NAMES AND FUNCTIONS

3.1 Part Names

Burn out output direction setting pin upon hardware failure

Name plate

Stud bolt

CPU assembly

Terminal cover

LCD assembly (with indicator)

Grounding

Amp. cover

Lock screw

Wiring connector (input signal side)

terminal

Tag plate

Grounding terminal

Wiring connector (output signal side)

Figure 3.1 Part Names

Built-in indicator display

Output signal terminal

3-1

Input signal terminal

F0301.EPS

IM 01C50B01-01E

3. PART NAMES AND FUNCTIONS

3.2 Setting the Hardware Error Burnout Change-over Switch

The temperature transmitter is equipped with a hardware error burnout function used to set the output direction upon hardware error, and a sensor burnout function that sets the direction of the output in the event of burnout of the temperature sensor. When factory-shipped under normal conditions, the output of both hardware error burnout and sensor burnout are set to HIGH, but if suffix code /C1 is specified, the hardware error burnout is set to LOW (-5%) output, and sensor burnout is set to LOW (-2.5%) output, respectively. The setting of the direction of output from burnout can be changed.

To change the direction of output arising from burnout, switch the setting pin on the CPU assembly (see Figure

3.1 and Table 3.1). To change the direction of output

arising out of sensor burnout, a dedicated hand-held terminal is required to rewrite the parameters within the transmitter. For details, refer to the separate instruction manual, IM 01C50T01-01E “HART Protocol” or IM 01C50T03-01E “BRAIN Protocol”.

Table 3.1 Output Direction Setting Pins for Hardware

Error Burnout

position

H L

burnout

direction

HIGH

LOW

Hardware error

burnout

output

110% or more

(21.6 mA DC)

-5% or less

(3.2 mA DC)

RemarkHardware error

Set to HIGH upon shipment from the factory

Set to LOW when suffix code /C1 is provided

T0301.EPS

3.3 Built-in Indicator Display

(1)Output bar chart display

The output value is displayed in a bar chart. Resolution of the bar chart is to the extent of 32 divisions (each increment is about 3.125%). If the output exceeds 0% or 100%,䉲 is lit. The bar chart can be toggled ON/ OFF using the bar chart display parameter.

(2) Communication protocol display

The indicator is on in accordance with each communication protocol.

(3)Operation mode display

Lit when each operation mode is activated. M.D.:Lit when the multidrop mode of HART commu-

nication specification is activated.

B.M.: Lit during burst mode transfer of HART commu-

nication specification. F.O.: Lit when manual mode is active. W.P.: Lit when write protect status is active.

(4)Input display

Indicates the type of input in accordance with the value shown in the column in Item (5).

Sns1: Meant to show the process variable allocated to

Sensor 1. Sns2: Meant to show the process variable allocated to

Sensor 2. (Can be displayed only with the

YTA320.) . Term: Meant to show the temperature of the terminal

box of the temperature transmitter. Avg: Meant to show the average of the process

variable allocated to Sensor1 and Sensor2. (Can

be displayed only with the YTA320.).

Function

Communication protocol display

Output bar chart display

Operation mode display

Input display Process variable display

Unit display

Display of sensor type and number of wire connections

Figure 3.2 Built-in Indicator Display Function

F0302.EPS

Dif: Meant to show the difference of the process

variable allocated to Sensor1 and Sensor2. (Can

be displayed only with the YTA320.)

(5)Process variable display

Displays the process variable or output value. The value is displayed down to the second decimal position if the integer part is less than three digits, or down to the first decimal position if the integer part is 4 digits. If the value is negative, the minus (⫺) sign is lit. For process variables, the indicators for each item specified in the column of input display in Item (4) and the unit column in Item (6) are lit. For output value, % or mA in the unit column in Item (6) is lit. When burnout of the temperature sensor is identified, or the temperature transmitter is found abnormal, an error code flashes. For a list of error codes, refer to “Error code table” in Section 6.4.

3-2

IM 01C50B01-01E

3. PART NAMES AND FUNCTIONS

(6)Unit display

The unit specified as the unit of process in the process variable display column in Item (5) is lit. The output display is fixed to mA or %.

(7)Display of sensor type and number of wire

connections

Displays process variable/output items, the number of sensor wiring connections and the multidrop address in dot matrix (only applies to HART communication). In the event of hardware error, “FAIL” is displayed.

Process variable: To display the process variable

value in the process variable display in Item (5), display the type of applicable process variable (“PV”, “SV”, “TV”).

Output display: To display the output value in the

process variable display in Item (5), display “OUT”. During the output of sensor burnout, “Abn” and “OUT” are alternately dis played.

Upon shipment from the factory, the indicator is set as follows.

Table 3.2 Setting of Indicator upon Shipment from the

Factory

Display location

Output bar chart display Input display

Process variable display

Unit display

Display of sensor type and number of wire connections

Output bar chart display is on. Sns1 is lit. PV value and output value

(mA) are alternately displayed. The unit specified upon

shipped from factory and mA are lit.

“PV” and “OUT” are displayed alternately.

Contents

T0302.EPS

WIRE: Displays the number of wiring

connections. There are two wiring connections for thermocouple input, while there are two to four connections for thermometer resistor; these are displayed alternately with the sensor type. The display can be hidden by setting an applicable parameter. Note that the DIF and AVG display does not allow the sensor type to be displayed.

TYPE: Displays the type of sensor. Note

that the DIF and AVG display does not allow the sensor type to be displayed. If the sensor is customordered, “Z1” and “Z2” are displayed.

Multidrop address: If the multidrop address is 1

through 15 in HART communication, the output display brings up these addresses instead of display ing “OUT”.

3-3

IM 01C50B01-01E

4. INSTALLATION

IMPORTANT

• When performing on-site pipe fitting work that involves welding, use care to prevent outflow

of the welding current into the transmitter.

• Do not use the transmitter as a foothold for installation.

• For details of choosing the installation location, refer to the guidelines outlined in Section 2.4, “Choosing the installation location”.

• The mounting bracket shown in Figure 4.1 is used for the transmitter and is installed on 50A (2B) pipe. It can be installed either on a horizontal pipe and a vertical pipe or on a wall.

• To install the mounting bracket on the transmitter, torque the transmitter lock screw (1) to about 20 to 30N⭈m.

Horizontal Pipe Mounting

U-bolt nut

Mounting bracket

Spring washer

Transmitter lock scraps

2B pipe

(60.5dia.)

U-bolt

Vertical Pipe Mounting

Wall Mounting

Note: Wall mounting bolts are user-

supplied.

Figure 4.1 Mounting the Transmitter

4-1

F0401.EPS

IM 01C50B01-01E

5. WIRING

F0501.EPS

Output signal

–

Distributor

(power supply unit)

Receiver

Input signal (thermocouple, RTD, mV, etc.)

F0502.EPS

Output signal

–

Distributor

(power supply unit)

Receiver

Safety barrier

Input signal (thermocouple, RTD, mV, etc.)

5.1 Notes on Wiring

IMPORTANT

• Apply a waterproofing sealant to the threads of the connection port. (It is recommended that you use non-hardening sealant made of silicon resin for waterproofing.)

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

• Remove the wiring connection dust-caps before wiring.

• To prevent electrical noise, the signal cable and the power cable must not be housed in the same conduit.

• 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 cove can be opened by hands. See Subsection 6.3 “Disassembly and Reassembly” for details.

5.2 Loop Construction

The YTA is a two-wire temperature transmitter that uses the output power supply wiring and signal wiring alternately.

5. WIRING

Figure 5.1 Loop Construction (for General-use Type and

Figure 5.2 Loop Construction (for Intrinsically Safe

resistance

Flameproof Type)

Type)

600

External

load

250

(⍀)

E–10.5

0.0236

Communication

applicable range

BRAIN and HART

The transmission loop requires DC power. Connect the transmitter with the distributor as shown in Figure 5.1 or Figure 5.2.

For the transmission loop, the load resistance of the distributor or other instrument to be installed in the loop and the lead wire must be within the range shown in Figure 5.3.

For details of communication requirements, refer to the additional reference materials, IM 01C50T03-01E “YTA Series BRAIN Communication”, and IM 01C50T01-01E “YTA Series HART Communication”.

10.5 16.4 24.7 42

Power supply voltage E (V DC)

Figure 5.3 Relation between Power Supply Voltage and

Note: For intrinsic safe explosion-proof type units, the internal

5-1

Load Resistance

resistance of the safety barrier is also included in the load resistance.

IM 01C50B01-01E

F0503.EPS

5. WIRING

5.3 Cable Selection

5.3.1 Input signal Cable Selection

A dedicated cable is used for connection between the temperature sensor and the temperature transmitter. When a thermocouple is used as the temperature sensor, a compensation wire must be used that it appropriate for the type of thermocouple (refer to compensating cables for JIS C 1610/IEC584-3 thermocouples). When a resistance temperature sensor (RTD) is used as the temperature sensor, 2-core/3-core/4-core cable must be used (refer to resistance thermometer sensor JIS C 1604/IEC751). The terminal of the dedicated cable is a 4 mm screw.

5.3.2 Output Signal Cable Selection

• With regard to the type of wire to be used for wiring, use twisted wires or cables with performance equivalent of 600V vinyl insulated cable (JIS C3307).

• For wiring in areas susceptible to electrical noise, use shielded wires.

• For wiring in high or low temperature areas, use wires or cables suitable for such temperatures.

• For use in an atmosphere where harmful gases or liquids, oil, or solvents are present, use wires or cables made of materials resistant to those substances.

• It is recommended that a self-sealing terminal with insulation sleeve (4-mm screw) be used for lead wire ends.

CAUTION

When wiring, pay attention not to damage the cable and cores. All the cores of the cable must have the sufficient insulation around them.

STEP 1

(1)

a. Cable connection to thermometer resistor(RTD),

3-wire

STEP 2

(2)

b. Power supply cable connection

Figure 5.4 Terminal Connection Pro cedure

F0504.EPS

WARNING

If the YTA is JIS flameproof and the ambient temperature is 50°C or more, use an external cable having a maximum allowable heat resistance of at least 70°C in consideration of the instrument’s generation of heat or the cable’s self-heating.

5.4 Cable and Terminal Connections

5.4.1 Input Terminal Connections

NOTE

It is recommended that the terminals be connected in the order of input terminal (1) and output terminal (2).

䊏 The temperature sensor is to be connected

as shown in Figures 5.6 and 5.7.

Figure 5.5 Terminal diagram

5-2

IM 01C50B01-01E

F0505.EPS

5. WIRING

Sensor1(YTA110, YTA310)

(+)

2 3

(–)

4 5

Thermocouple and

DC voltage

(A)

(B)

3 4 5

RTD and resistance

(3-wire)

RTD and resistance

1 2 3 4 5

(A)

(B)

(2-wire)

(A) (A) (B) (B)

RTD

(4-wire)

F0506.EPS

Figure 5.6 YTA110 and YTA310 Input Terminal Wire

Connection Diagram

1 input (YTA320)

(+)

2 3

(–)

4 5

Thermocouple and

DC voltage

(A)

(B)

3 4 5

RTD and resistance

(3-wire)

(A)

1 2

(B)

3 4 5

RTD and resistance

(2-wire)

(A)

(B)

4 5

RTD

(4-wire)

5.4.2 Output Terminal Connection

(1) Connection of output signal/power supply

cable

Connect the output signal cable (shared with the power supply cable) to the – terminal and the + terminal. For details, refer to Figure 5.2, “Loop construction”.

(2) Connection of wiring for field indicator

Connect the lead wire for the field indicator with the – terminal and the C terminal.

Note: Use a field indicator with an internal resistance of 10W or less.

Field indicator

Power supply

Figure 5.8 Connection to Field Indicator

(3) Connection of check meter

Connect the check meter with the – terminal and the C terminal. The current signal of output signal 4 to 20 mA DC is output from the – terminal and the C terminal.

Note: Use a check meter with internal resistance of 10⍀ or less.

Check meter

––+

F0508.EPS

2 input (YTA320)

(+)

1 2

(–)

3 4

(+)

Thermocouple and

DC voltage

(+)

(–)

2 3 4 5

(B)

(B) (A)

Thermocouple +

RTD and resistance

(A1)

(B1)

(B2)

(A2)

RTD and resistance

(3-wire)

(A1)

(B1)

2 3

(B2)

(A2)

RTD and resistance

(2-wire)

(3-wire)

Figure 5.7 YTA320 Input Terminal Wire Connection

Diagram

Figure 5.9 Check Meter Connection

+ –

Power supply

F0509.EPS

5-3

IM 01C50B01-01E

5. WIRING

5.5 Wiring Cautions

(1) General-use Type and Intrinsically Safe

Type

Use metal conduit wiring or a waterproof gland (metal wiring conduit JIS F 8801) for cable wiring.

•Apply nonhardening sealant to the threads of the wiring tap and a flexible fitting for secure waterproofing. Figure 5.10 shows an example of wiring on the output side. This example also applies to the wiring on the input side.

Flexible fitting

Wiring conduit

Apply a nonhardening sealant to the threads for waterproofing.

Figure 5.10 Example of Wiring Using a Wiring Conduit

(2) JIS Flameproof Type

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

Tee

Drain plug

F0510.EPS

Table 5.1 Flameproof Packing and Appropriate Cable

Wiring Port

Thread

Diameter

G1/2

Outer Diameters

Appropriate Cable Outer

Diameter (mm)

8 -10

10.1-12

Identifying

Mark

16168-10

10-12

Part

Number

G9601AM

T0501.EPS

Follow the procedure below to install the flameproof packing adapter.

1. Screw the flameproof packing adapter into the terminal box until the O-ring touches the terminal box wiring port (at least 6 full turns), and tighten the lock nut.

2. Insert the cable through the union cover, the union coupling, the gland the clamp nut, the clamp ring, one 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.

䊏 Wiring cable through flameproof packing

adapter for only JIS flameproof type (see Figure 5.11)

• 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.

Flexible fitting

Wiring conduit

Apply a nonhardening sealant to the threads for waterproofing.

Figure 5.11 Typical Cable Wiring Using Flameproof

Packing Adapter

Tee

Drain plug

F0510.EPS

•Measure the cable outer diameter in two directions to within 0.1mm.

• Calculate the average of the two diameters, and use packing with an internal diameter nearest to this value from among the three provided (see Table5.1).

CAUTION

Tighten the union cover approximately one turn after the point where you can no longer shift the cable up and down by hand. Take great care in this step, since proper tightening is very important.

5. Fasten the cable with tightening the clamp nut.

6. Tighten the lock nut on the union cover.

7. Connect the cable wires to each terminal.

Lock nut

Cable

Union cover

Union coupling

Clamp nut

Clamp ring

Grand

Washer

Rubber packing

Packing box

Lock nut

Adapter body O-ring

CAUTION

Be sure to apply nonhardening sealant to the threads for water proofing.

Figure 5.12 Flameproof Gland Packing Adapter

lnstallation

F0512.EPS

5-4

IM 01C50B01-01E

5. WIRING

NOTE

䊏 Flameproof metal conduit wiring

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

• Apply a nonhardening sealant to the threads of the terminal box connection port, flexible metal conduit and seal fitting for waterproofing.

Flameproof flexible metal conduit

Gas sealing device

Apply a nonhardening sealant to the threads of these fittings for waterproofing

Seal fitting

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

Figure 5.13 Typical Wiring Using Flameproof Metal

Conduit

Non-hazardous area

Hazardous area

Flameproof heavy-gauge steel conduit

Tee Drain plug

F0513.EPS

5.6 Grounding

Grounding should satisfy JIS Class D requirements (with ground resistance of 100⍀ or less). Grounding work is required for withstand voltage explosionproof type units and intrinsic safe explosionproof type transmitters.

For a transmitter with built-in arrester, grounding should satisfy JIS Class C requirements (with ground resistance of 10⍀ or less).

Grounding terminals are located both inside and outside the terminal board.

Use 600V vinyl insulation wires for the grounding conductor.

Grounding terminal

Figure 5.14 Grounding Terminal

F0511.EPS

5-5

IM 01C50B01-01E

6. MAINTENANCE

6.1 General

Each component of this instrument is configured in units to make maintenance easier.

This chapter contains disassembly and assembly procedures associated with calibration, adjustment and part replacement required for maintenance of the affected instrument.

IMPORTANT

1. Maintenance of this instrument should be performed in a service shop where the necessary tools are provided.

2. Handling the CPU assembly Some of the parts contained in the CPU assembly are susceptible to static electricity damage. Before performing maintenance, use a ground wrist band or other antistatic mea sures, and avoid touching the electronic components and circuits with bare hands. When removed from the instrument, keep the CPU assembly in an antistatic bag.

Table 6.1 Calibration Equipment List

Name Recommended Remark

Power supply

Load resistance

Voltmeter

Universal calibrator

Variable resistor

a. Wiring of power supply and output

SDBT, SDBS type distributor

2792 type standard resistor (250⍀ ±0.005%)

Model 1271 digital multimeter (accuracy: ±0.002%)

Model 9100 type

279301 type 6-dial variable resistor (accuracy: ±0.005%)

+ Output signal –

Load

resistance

4 to 20mA DC (Output voltage:

26.5±1.5V, drop by internal 250⍀ resistance included)

For 4 to 20mA DC

For 4 to 20mA DC signal

For calibration of DC voltage and thermocouple

For calibration of thermometer resistor (RTD) input

T0601.EPS

6.2 Calibration

This instrument is fully factory-tested and is guaranteed for the intended accuracy, eliminating the need for calibration. When calibration needs to be varified, the following equipment and calibration procedure is recommended.

6.2.1 Selection of Equipment for Calibration

Table 6.1 lists the equipment required for calibration. The calibration equipment traceable to a verifying agency standard should be used.

6.2.2 Calibration Procedure

To conduct calibration required to evaluate the uncertainty while using the instrument, follow the steps below:

1. In accordance with the example wiring shown in

Figure 6.1, connect each equipment and initiate warm up. Lay wiring on the input side according to the sensor to be used.

Voltmeter

b. Example of wiring for thermocouple

or DC voltage input (when 1 input type is used)

1 2 3 4 5

c. Example of wiring for thermometer

resistor 4-core type (when 1 input type is used)

1 2 3 4 5

Figure 6.1 Example of Wiring for Calibration Equipment

(+) (–)

DC voltage generator

(A) (A) (B) (B)

Variable resistor

F0601.EPS

2. For DC voltage input With a voltage generator, deliver input signals corresponding to 0, 25, 75, or 100% of the input span to the temperature transmitter. Measure the resulting input signal with the voltmeter (digital multimeter) and check the output value relative to the input value.

6-1

IM 01C50B01-01E

6. MAINTENANCE

3. For thermocouple input Since this instrument is equipped with a reference junction compensating function, use a reference junction compensating function in universal calibrator in order to compensate for this function upon calibration. According to the reference milivolt table for thermocouple, obtain milivolt corresponding to 0, 25, 50, 75, or 100% of the span, and use that power as the input value, then deliver it from the universal calibrator to the temperature transmitter. Measure the resulting output signal with the voltage meter (digital multimeter) and check the output value relative to the input value.

4. Thermometer resistor (RTD) Using a thermometer resistor as input, calibration of the temperature transmitter is carried out via a 4core wire connection. As defined the reference resistor value table of the thermometer resistor (RTD), obtain resistance values corresponding to 0, 25, 50, 75 or 100% of the span, and use the obtained resistance as the input value, then deliver it to the temperature transmitter by means of a variable resistor. Measure the resulting output signal with the voltmeter (digital multimeter) and check the output value relative to the input value.

5. In Steps 2 through 4, if the output signal deviates from the given range of accuracy when a given input signal is delivered, adjust the output using the handheld terminal. For details of how to adjust the output, refer to the additional references, “BRAIN Protocol” IM 01C50T03-01E or “HART Protocol” IM 01C50T01-01E and the instruction manual for each terminal.

Table 6.2 Tools for Disassembly and Assembly

Tool name Quantity Remark

Phillips screwdriver 1 Standard screwdriver 1 Hexagonal wrench 1 Crescent wrench 1 Torque wrench 1 Box wrench 1 For M10 screw Box screwdriver 1 Forceps 1

T0602.EPS

CAUTION

Precautions for CENELEC and JIS Flameproof Type Transmitters

• For a withstand flameproof type transmitter, as a rule, move the transmitter to a non-hazardous location, then proceed with maintenance and restore the instrument to the original condition.

• For a withstand CENELEC and JIS flameproof type transmitter, turn the lock bolt (hexagon socket bolt) clockwise with a wrench for hexagon head, unlock and remove the cover. When installing the cover, it is the must to turn the lock bolt counterclockwise and lock the cover (locked to a torque of 0.7 Nm).

• For a withstand flameproof type transmitter, in

no case should the user be allowed to modify the transmitter. Therefore, no user is allowed to add a built-in indicator, or use the transmitter with the indicator removed. Contact us for any modification.

Terminal cover

6.3 Disassembly and Assembly

This section details the procedure for part replacement or disassembly and assembly of each component depending on the maintenance process.

Before starting disassembly and assembly work, turn off the power, and use a tool suited to the associated work.

Table 6.2 lists the tools required for disassembly and assembly of the instrument.

CPU assembly

LCD board

(with indicator)

Amp. Cover

Lock bolt

Stud bolt

Mounting screw

Figure 6.3 Mounting and Removal of Built-in Indicator

and CPU Assembly

6-2

IM 01C50B01-01E

F0602.EPS

6. MAINTENANCE

NOTE

6.3.1 Replacement of Built-in Indicator

䊏 Removal of built-in indicator

1. Remove the cover.

2. Loosen two mounting screws while using your hand to support the built-in indicator.

3. Remove the LCD assembly from the CPU assembly. At this time, straighten and pull the LCD assembly forward so that the connector connecting the CPU assembly and the LCD assembly is not damaged.

䊏 Mounting the built-in indicator

Integral Indicator can be installed in the following three directions.

6.3.2 Replacement of CPU Assembly

䊏 Removal of CPU assembly

1. Remove the cover.

2. Use a Phillips screwdriver to loosen the two screws.

3. For a CPU assembly with a built-in indicator, remove it as described in Section 6.3.1. Next loosen the two stud bolts.

4. Pull the CPU assembly directly toward you.

5. Remove the cable (with a brown connector attached at the head).

Use care not to apply excessive force to the CPU assembly during removal.

䊏 Mounting the CPU assembly

1. Connect the cable with the CPU assembly.

2. Align the pin on the base board with the connector (black) of the CPU assembly, and insert the CPU assembly straight into the board.

F0603.EPS

Figure 6.4 Installation Direction of Indicator

1. Place the LCD assembly in desired direction over the CPU assembly.

2. Align the mounting hole of the LCD assembly with the stud bolt hole, and carefully insert the indicator into the connector in a straight manner so that the connector is not damaged.

3. Tighten the two mounting screws that secure the indicator.

4. Install the cover.

IMPORTANT

Use care not to pinch the cable under the cover, and fully insert the cable into the case.

3. Loosen the two screws. If the unit includes a builtin indicator, install it as described in Section 6.3.1.

4. Mount the cover.

6-3

IM 01C50B01-01E

6. MAINTENANCE

6.4 Troubleshooting

When the measured value is found abnormal, follow the troubleshooting flowchart below. If the complex nature of the trouble means that the cause cannot be identified using the following flowchart, refer the matter to our service personnel.

6.4.1 Basic Troubleshooting Flow

When the process measurement is found to be abnormal, it is necessary to determine whether the input temperature is out of range, the sensor has failed or being damaged, or the unit has been improperly wired. If it is suspected that the measurement system is the source of the problem, use the flowchart to identify the affected area and determine how to proceed.

In these troubleshooting steps, the self diagnostic function provides helpful solutions to the problem, refer to the instructions in Section 6.5 for details.

:Part supported

by self-diagnosis

Measured value

is found faulty

YES

Inspect the process

YES

Error in process

variable?

Faulty

area in measurement

system

Receiver error

Error in measurement system

6.4.2 Example of Troubleshooting Flow

The following phenomena indicate that this instrument may be out of operation. [Example]

• No output signal is delivered.

• Process variable changes but the output signal remains unchanged.

• The assessed value of the process variable and the output are not coincident.

• If a built-in indicator is attached, check the

display of the error code.

• Connect a hand-held terminal and check

self-diagnosis.

Was a faulty

area found with self-

diagnosis?

Is the polarity

of the power supply

correct?

YES

Are the power

supply voltage and load

resistance correct?

YES

Refer to the error message list and check for recovery measures.

Check the polarity between the power supply and terminal box and correct it.

Refer to Section 5.2 and set the specified voltage and load resistance.

YES

Inspect receiver

Environmental condition

Environmental condition:

check, study, correction

Operating requirements:

check, study, correction

Figure 6.5 Basic Flow and Self-diagnosis

Check the transmitter

Operating requirements

Transmitter

F0604.EPS

Is the sensor

correctly connected?

YES

Is there a

disconnection in the loop?

Do the loop numbers

correspond to the

counterpart?

YES

Refer to our service personnel for details.

Figure 6.6 Example of Troubleshooting Flow

Check the sensor connection and correct it.

Check for disconnection or faulty wiring and take corrective measures.

6-4

F0605.EPS

IM 01C50B01-01E

Table 6.3 Problems, Causes and Countermeasures

Observed Problems Possible Cause Countermeasure

Output fluctuates greatly.

Transmitter outputs fixed current.

Span is too narrow.

Input adjustment by user was not corrctly done.

Output adjustment by user was not correctly done.

The transmitter is in manual (test output) mode.

Check the range, and change the settings to make the span larger.

Clear the user adjustment (Sensor trim) value or set it to off.

Clear the user adjustment (output trim) value or set it to off.

Release manual mode. (Make the transmitter return to Automatic

F10:LRV F20:URV

J05:SNSR1 CLR K05:SNSR2 CLR

L05:OUT CLR

G10:OUTPUT MODE

Mode) Clear the user adjustment (Sensor

trim) value or set it to off. Clear the user adjustment (output

trim) value or set it to off. Set the correct value to URV and

LRV. Set the transmitter to normal

output mode. Release write protect.

Set Sensor1 as PV and Sensor2 as SV.

• Check the type and wire settings for Sensor1 and

J05:SNSR1 CLR K05:SNSR2 CLR

L05:OUT CLR

F10:LRV F20:URV

H10:REVERSE OUT

H40:WRITE PROTCT

B10:PV is B20:SV is

D10:SENSOR1 TYPE E10:SENSOR2 TYPE

Output is reversed. (See note 1)

Parameters cannot be changed.

Sensor backup function doesn’t work correctly.

Input adjustment by user was not corrctly done.

Output adjustment by user was not correctly done.

LRV is greater than URV.

The transmitter is set to reversed output mode.

The transmitter is in write protect status.

Settings of Process Variables are not correct.

Configuration of Sensor1 and Sensor2 is not correct.

Sensor2.

• Check the connection of Sensor1 and Sensor2.

Check the Sensor Burnout setting. Change the Sensor Backup

function to “enable.” Set correct value.

If output fluctuation is great, set a greater value for PV damping

F40:BURN OUT H20:SNSR BACKUP

B12:PV DAMPING

B13:DMP POINT

Output damping doesn’t work.

Sensor Burnout is set to “off.” Sensor backup mode is not

enabled. Damping time constant is set

to “0 second.” Setting for “PV damping point”

is too small.

point than current setting. (Initial setting is “2%” of output)

Note 1: If the reversed output is desired and necessary setting was done by user, it is not considered as a problem.

6. MAINTENANCE

Related Parameter

(HART protocol)(BRAIN protocol)

PV LRV (4) PV URV (5)

Snsr1 Trim Act (123312) Snsr2 Trim Act (123322)

D/A Clr to Default (12343)

Loop test (122)

Snsr1 Trim Act (123312) Snsr2 Trim Act (123322)

D/A Clr to Default (12343)

PV LRV (4) PV URV (5)

Chng wrt Protect (Hot key)

PV is (11211) SV is (11212)

Snsr1 config (134) Snsr2 config (135)

Sensor barnout (14315) Snsr backup (14141)

PV damp (1322)

PV damp point (1323)

T0603.EPS

6-5

IM 01C50B01-01E

6.5 Integral Indicator and Error Display

For temperature transmitters equipped with an integral indicator, errors in the temperature sensor or the transmitter cause an integral indicator to call up the applicable error code. Table 6.4 lists the error codes and the associated corrective actions.

Table 6.4 List of Error Codes

6. MAINTENANCE

Indicator BT200 display Cause

N/A Good Er-01 Output Too Low

Er-02 Output Too High

Er-03 Sensor1 Failure

Er-04 Sensor2 Failure

(YTA320 only)

Er-05 S1 Signal Error

Er-06 S2 Signal Error

(YTA320 only)

Er-07 Amb Temp Low

Er-08 Amb Temp High

Er-09 Sns Backup Start

(YTA320 only)

Er-10 Illegal PV MAP

Er-11 Term Sns Failure

Er-12 EEPROM Failure

Er-13 CPU Failure

Er-14 AD Conv Failure

Input value is lower than the PV low range value.

Input value is higher than the PV upper range value.

Sensor1 fails or disconnects from the terminal block.

Sensor2 fails or disconnects from the terminal block.

Sensor1 input value greatly exceeds the sensor measurement range. Sensor type setting or connection polarity may be incorrect.

Sensor2 input value greatly exceeds sensor measurement range. Sensor type setting or connection polarity may be incorrect.

The ambient temperature exceeds the lower ambient temp limit and the specified accuracy cannot be achieved.

The ambient temperature exceeds the upper ambient temp limit and the specified accuracy cannot be achieved.

Sensor backup mode is in effect.

There is a problem with the PV mapping settings.

Terminal block temperature sensor failed.

EEPROM failed.

Output side hardware failure.

Input circuit hardware failure.

Output operation upon error

Output goes to minimum value(–2.0%).

Output goes to maximum value(105%).

If sensor1 is set as PV, the burnout value is output. When sensor backup mode is set in YTA320, sensor2 input is used as output.

If sensor2 is set as PV, or sensor backup mode is in effect, sensor burnout value is output.

Output goes to minimum value(–2.0%) or maximum value(105%).

Continues to operate and output.

Sensor2 input is used as output. If sensor2 also fails, the transmitter operate with burnout settings.

Output status immediately before error is retained (HOLD).

Operation and output continues.

The output goes to the value set by the hardware failure mode jumper.

6-6

Action

Check the LRV setting and adjust.

Check the URV setting and adjust.

•Check sensor for damage.

•Check terminal connection.

• If sensor backup mode is set, refer to “Er-09”.

•Check sensor for damage.

•Check terminal connection.

• If sensor backup mode is set, repair wiring or replace damaged sensors.

•Check sensor connections.

•Check the sensor type selected.

•Check sensor connections.

•Check sensor type selected

Use a heater to raise the ambient temperature, or reset to a higher level.

Take enough distance from the source of heat, or reset to a lower level.

Restore the status of sensor1 to normal and Enable sensor1 return parameters, or turn the power ON again.

Check the setting for PV mapping and correct the setting.

Contact our service personnel.

T0604.EPS

IM 01C50B01-01E

7. STANDARD SPECIFICATIONS

7.1 Standard Specifications

For the specifications of Fieldbus communication type marked with (䉫), refer to IM 01C50T02-01E.

Input signal:

Input points: YTA110; 1, YTA310; 1,

YTA320; 2 Thermocouple: J, K, E, T, R, S, B, N (T/C) (JIS/IEC584), L, U

(DIN43710), W3, W5

(ASTM988) Thermometer resistor: Pt100, Pt200, Pt500 (RTD) (IEC751), JPt100(JIS),

Cu, Ni120

2/3/4-wire DC voltage: mV Resistance: Resistor 2/3-wire

Input resistance:

1M or higher (3k or higher with power ON)

Input signal source resistance:

1k or lower (at thermocouple, DC voltage input)

Input lead wire resistance:

10/1-core or less (with thermometer resistor, resistance input)

Output signal(䉫):

4 to 20 mA DC 2-core

Communication line conditions(䉫):

Power supply voltage; 16.4 to 42 VDC Load resistance; 250 to 600 (including cable resistance) For relation between power supply voltage and load resistance, refer to Figure 5.3. Maximum line length; 2 km when CEV cable is used. Load resistance; 0.22 µF or less Load inductance; 3.3 mH or less Spacing to power line;

Output signal line; 15 cm or longer (avoid

parallel wiring) Input signal line; 100 cm or longer (avoid parallel wiring)

Input impedance of receiver connected to receiver resistance; 10 k or higher (at 2.4 kHz)

Accuracy(䉫):

YTA110;

A/C conversion accuracy + D/A conversion accuracy (Refer to Table 7.1) or ±0.1%, whichever is greater. For thermocouple input, above plus reference junction compensation accuracy.

YTA310, YTA320;

A/C conversion accuracy + D/A conversion accuracy (Refer to Table 7.1) For thermocouple input, above plus reference junction compensa tion accuracy.

Measuring range:

Refer to Table 7.1.

Power supply voltage(䉫):

For general use type;

10.5 to 42 VDC

With lightning protection (Optional code A);

10.5 to 32 VDC For intrinsically safe, Type n, non-incendive or non-sparking type;

10.5 to 32 VDC

Reference junction compensation accuracy:

±0.5°C (±0.9°F)

Ambient temperature:

–40 to 85°C (–40 to 185°F) . . . general type

–30 to 80°C (–1 to 176°F) . . . . with Integral

indicator

Ambient temperature effect per 10°C change(䉫) :

YTA110;

± 0.1% or ± (Temperature Coefficient/span), whichever is greater (refer to Table 7.2)

YTA310, YTA320;

A/D conversion temperature factor + D/A conversion temperature factor (refer to Table

7.3)

7-1

IM 01C50B01-01E

Ambient humidity:

5 to 100%RH at 40°C (104°F)

Effect of supply voltage fluctuation:

±0.005%/V

Insulation:

Input/output insulated at 500 V AC

Mounting:

Mounted on 2B pipes and wall

Waterproofing:

JIS0920, water-resistant type (equivalent of NEMA TYPE4X)

Electrical connection:

Refer to “Model and Specification Codes”.

Case and cover:

Aluminum alloy casting

Painting:

Polyurethane resin baked finish Deep sea moss green (equivalent of Munsell

0.6GY3.1/2.0)

7. STANDARD SPECIFICATIONS

Integral indicator (option):

LCD digital indicator (5-digit display) Output bar graph; 0 to 100% display

Damping constant:

1 to 99 seconds (integer range that can be set)

Sensor burnout (Output Signal Code D&E) :

High (110%, 21.6 mA DC) or Low (–2.5%, 3.6 mA DC)

Weight:

1.2 kg; without built-in indicator (without mounting bracket)

1.4 kg; with Integral indicator (without mounting bracket)

EMC compliant standard: ,

EN61326, AS/NZS 2064

7-2

IM 01C50B01-01E

7. STANDARD SPECIFICATIONS

Table 7.1 Input Type, Measurement Range and Accuracy

Sensor T ype

T/C

RTD

ohm

Reference

Standard

B 100 to 1820 212 to 3308

IEC584

ASTM

E988

DIN43710

Pt100 Pt200 IEC751 -200 to 850 -328 to 1562 Pt500 -200 to 850 -328 to 1562

JPt100

JIS C1604

SAMA

Cu -70 to 150 -94 to 302

RC21-4

Ni120 -70 to 320 -94 to 608 -70 to 320 -94 to 608 ± 0.11 ± 0.19

Measurement Range

C F

-200 to 1000 -328 to 1832

-200 to 1200 -328 to 2192

-200 to 1372 -328 to 2502

-200 to 1300 -328 to 2372

-50 to 1768 -58 to 3214

-200 to 400 -328 to 752

0to2300 32 to 4172

-200 to 900 -328 to 1652

-200 to 600 -328 to 1112

-200 to 850 -328 to 1562 -200 to 850 -328 to 1562 ± 0.14 ± 0.25

-200 to 500 -328 to 932 -200 to 500 -328 to 932 ± 0.16 ± 0.29

-10 to 100 0to2000

[mV]

[Ω] 20 [Ω]

Minimum Span

(Recommended)

25 C

(45 F)

10 C

(18 F)

3 [mV]

Input range

C F 100 to 300 212 to 572 ± 3.0 ± 5.4 300 to 400 572 to 752 ± 1.0 ± 1.8 400 to 1820 752 to 3308 ± 0.75 ± 1.35

-200 to -50 -328 to -58 ± 0.35 ± 0.63

-50 to 1000 -58 to 1832 ± 0.16 ± 0.29

-200 to -50 -328 to -58 ± 0.40 ± 0.72

-50 to 1200 -58 to 2192 ± 0.20 ± 0.36

-200 to -50 -328 to -58 ± 0.50 ± 0.90

-50 to 1372 -58 to 2502 ± 0.25 ± 0.45

-200 to -50 -328 to -58 ± 0.80 ± 1.44

-50 to 1300 -58 to 2372 ± 0.35 ± 0.63

-50 to 0 -58 to 32 ± 1.0 ± 1.8 0to 100 32 to 212 ± 0.80 ± 1.44

100 to 600 212 to 1112 ± 0.60 ± 1.08 600 to 1768 1112 to 3214 ± 0.40 ± 0.72

-50 to 0 -58 to 32 ± 1.0 ± 1.8 0to 100 32 to 212 ± 0.80 ± 1.44

100 to 600 212 to 1112 ± 0.60 ± 1.08 600 to 1768 1112 to 3214 ± 0.40 ± 0.72

-200 to -50 -328 to -58 ± 0.25 ± 0.45

-50 to 400 -58 to 752 ± 0.14 ± 0.25 0to 400 32 to 752 ± 0.80 ± 1.44

400 to 1400 752 to 2552 ± 0.50 ± 0.90 1400 to 2000 2552 to 3632 ± 0.60 ± 1.08 2000 to 2300 3632 to 4172 ± 0.90 ± 1.62

0to 400 32 to 752 ± 0.70 ± 1.26

400 to 1400 752 to 2552 ± 0.50 ± 0.90 1400 to 2000 2552 to 3632 ± 0.70 ± 1.26 2000 to 2300 3632 to 4172 ± 0.90 ± 1.62

-200 to -50 -328 to -58 ± 0.30 ± 0.54

-50 to 900 -58 to 1652 ± 0.20 ± 0.36

-200 to -50 -328 to -58 ± 0.50 ± 0.90

-50 to 600 -58 to 1112 ± 0.25 ± 0.45

-200 to 850 -328 to 1562 ± 0.30 ± 0.54

-200 to 850 -328 to 1562 ± 0.20 ± 0.36

-70 to -40 -94 to -40 ± 1.35 ± 2.43

-40 to 150 -40 to 302 ± 1.0 ± 1.8

Accuracy

A/D Accuracy C F

± 12 [µV]

± 0.35 [Ω]

D/A

Accuracy

± 0.02%

of span

T0701.EPS

7-3

IM 01C50B01-01E

7. STANDARD SPECIFICATIONS

Table 7.2 YTA110 Effect of Ambient Temperature

Sensor T ype Thermocouples E, J, K, N, T, L, U Thermocouples R, S, W3, W5 100C  Reading < 300C

T/C B 300C  Reading

RTD mV ohm

Temperature Coefficient

0.08C + 0.02% of abs.reading

0.25C + 0.02% of abs.reading 1C + 0.02% of abs.reading

0.5C + 0.02% of abs.reading

0.08C + 0.02% of abs.reading

0.002 mV + 0.02% of abs.reading

0.1  + 0.02% of abs.reading

T07021.EPS

Table 7.3 YTA310, YTA320 Effect of Ambient Temperature

Sensor T ype

E J

T/C

Pt100 Pt200 Pt500

RTD

JPt100

Ni120

ohm

C 100 to 300 to

1000 to

-200 to

-200 to 0to

-50 to

200 to

-50 to

200 to

-200 to 0to 0to

1400 to

0to

1400 to

-200 to 0to

-200 to

-70 to 150

-70 to

Input Range

212 to

300

572 to

1832 to

-328 to

1000 1820 1000

1200

-328 to

1372

-328 to

1300

-58 to

200

392 to

-58 to

392 to

-328 to

1768

400

1400

2552 to

2300 1400

2552 to

2300

-328 to

900

-328 to

600

-328 to

850

-328 to

850

-328 to

850

-328 to

500

-94 to

320

F

32 to

32 to 32 to

32 to

± (

572

± (

1832

± (

3308

± (

1832

± (

2192

± (

2502

± (

2372

± (

392

± (

3214

± (

392

± (

3214

± (

752

± (

2552

± (

4172

± (

2552 4172

± ( ± (

± (

1652

± (

1112

± (

1562

± (

1562

± (

1562

± (

932

± ( 0.320C0.120 % of reading)-94 to 302 ± (

608

± (0.001mV0.0043 % of abs.reading)

± (

A/D Coefficient D/A Coeffieicient

0.530C0.080 % of reading)

0.350C0.021 % of reading ) C)

0.140

0.035C0.042 % of abs.reading)

0.039C0.020 % of abs.reading) C0.0029 % of reading)

0.039

0.046C0.020 % of abs.reading) C0.0054 % of reading)

0.046

0.054C0.010 % of abs.reading) C0.0036 % of reading)

0.054

0.210C0.032 % of abs.reading) C)

0.150

0.210C0.032 % of abs.reading) C)

0.150

0.046C0.036 % of abs.reading) C)

0.046

± {0.0088% of span0.007% of (readingLRV)}

0.100C0.0040 % of reading)

C0.020 % of reading)

-0.130

0.100C0.0040 % of reading)

C0.020 % of reading)

-0.120

0.039C0.020 % of abs.reading) C0.0029 % of reading)

0.039

0.046C0.036 % of abs.reading) C)

0.046

0.047C0.009 % of reading)

0.065C0.012 % of reading)

0.047C0.009 % of reading)

0.016C0.007 % of reading)

0.0400.0088 % of reading)

Note: Temperature Effect = A/D coeffieicnt + D/A coefficient (The data in the table is the coeffcient per 10C change.) Example 1; Pt100, 0 to 200C calibration range, 50C reading

(0.047C  50C  0.009%)  [200C  0.0088%  (50  0)  0.007%] = (0.047C  0.0045C)  (0.0176C  0.0035C ) = ± 0.0726C [ per 10C change ]

Example 2; T T/C, 100 to 100C calibration range, 250C reading

(0.046C  | 250C |  0.036%)  {200C  0.0088%  [250  (100)]  0.007%} = (0.046C  0.018C)  (0.0176C  0.0035C ) = ± 0.0851C [ per 10C change ]

T07022.EPS

7-4

IM 01C50B01-01E

Factory setting (䉫)

Tag No. Input sensor type Lower bound of calibration range Upper bound of calibration range Unit of calibration range Damping constant Sensor burnout Output when transmitter fails

*1: When option code C1 is specified, Low takes effect (–2.5%, 3.6mADC). *2: When option code C1 is specified, Low takes effect (–5%, 3.2mADC or less).

Left blank if not specified in order “Pt100, 3-wire” if not specified in order “0” if not specified in order “100” if not specified in order “°C” if not specified in order 2 seconds High side (110%, 21.6 mA DC) High side (110%, 21.6 mA DC)

T0705.EPS

7.2 Model and Suffix Codes

Model Basic Specification Codes Description

YTA110 YTA310 YTA320

Output signal

—

Electrical connection

Built-in indicator

Mounting bracket

Additional specifications

*1: Applicable for YTA320 only. *2: Use bolts for wall mounting.

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

–D . . . . . . . . . . . . . . . . . . . .

–E . . . . . . . . . . . . . . . . . . . .

–F . . . . . . . . . . . . . . . . . . . .

A . . . . . . . . . . . . . . . . . Always A

0 . . . . . . . . . . . . . . .

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

3 . . . . . . . . . . . . . . .

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

D . . . . . . . . . . . .

N . . . . . . . . . . . .

B . . . . . . . . . SUS304 2B pipe mounting

N . . . . . . . . .

/ Additional specifications

Temperature transmitter (1 input type) High precision temperature transmitter (1 input type) High precision temperature transmitter (2 input type)

4 to 20mA DC output, BRAIN communication type 4 to 20mA DC output, HART communication type FOUNDATION Fieldbus communication type

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

Digital indicator None

None

7. STANDARD SPECIFICATIONS

T0703.EPS

7.3 Optional Specifications

Item

Lightning protector

Power supply voltage: 10.5 to 32 V DC Allowable current: Max. 6000A(140s), repeating 1000A(140s) 100 times

Coating change X1

Painting

Color change

Stainless Steel Housing*

Calibration Unit Output signal low-side in

Transmitter failure*

Sensor matching function*

Epoxy resin coating Amplifier

cover only

Housing Material : SCS14A Stainless steel

Munsell renotation code

Metallic silver

Degree F/Degree R unit Output signal low-side: -5 %, 3.2 mA DC or less.

Sensor burnout is also set to ' LOW ': -2.5 %, 3.6 mA DC

RTD Sensor matching function

*1 : Not applicable with other option codes, except for A, C1, D2 and CM1. *2 : Not applicable for output signal code F.

Descriptions

: NI1.5 Black : 7.5BG4/1.5, Jade green

Code

P1 P2 P7

E1 D2

CM1

YTA310

YTA110

䊊



䊊

T0704.EPS

YTA320

7-5

IM 01C50B01-01E

[For Explosion Protected Types]

For FOUNDATION Fieldbus explosion protected type, see IM 01C50T02-01E.

Item

CENELEC

CENELEC (KEMA) Intrinsically safe, Type n and Flameproof approval combination [Intrinsically safe approval]

EEx ia llC, T4, T5 Ambient Temperature : -40 to 70C for T4, -40 to 50C for T5 Supply/Output circuit : Ui=30V, Ii=165mA, Pi=0.9W, Ci=20nF, Li=660H

Input circuit : Uo=8.6V, Io=30mA, Po=0.07W, Co=3F, Lo=20mH Electrical Connection : 1/2 NPT female, Pg13.5 female and M20 female* [Type n approval (IEC) ]

Ex nC llC, T4/T5 Ambient Temperature : -40 to 70C for T4, -40 to 50C for T5

Supply/output circuit : Ui=30V, Ii=150mA

Input circuit : Uo=8.6V, Io=30mA, Po=70mW

Electrical connection : 1/2 NPT female, Pg13.5 female and M20 female* [Flameproof approval]

EEx d llC T6, Ambient Temperature : -40 to 75C

Electrical Connection : 1/2 NPT female, Pg13.5 female and M20 female* CENELEC ATEX (KEMA) Intrinsically safe, Flameproof approval and Type n combination

[Intrinsically safe approval]

II 1G EEx ia IIC T4,T5 Ambient Temerature : -40 to 70°C for T4, -40 to 50°C for T5

Supply/Output circuit : Ui=30V, Ii=165mA, Pi=900mW, Ci=20nF, Li=660H

Input circuit : Uo=8.6V, Io=30mA, Po=70mW, Co=3F, Lo=20mH

Electrical Connection : 1/2 NPT female and M20 female* [Flameproof approval]

II 2G EEx d IIC T5, T6 Ambient Temerature : -40 to 80C for T5, -40 to 75C for T6

Electrical Connection : 1/2 NPT female and M20 female* [Type n approval]

II 3G EEx nL llC T4, T5 Ambient Temperature : -40 to 70C for T4, -40 to 50C for T5

Supply/Output circuit : Ui=30V, Ci=20nF, Li=660H

Input circuit : Uo=8.6V, Io=30mA, Po=70mW, Co=3F, Lo=20mH

Electrical Connection : 1/2 NPT female and M20 female*

Descriptions

7. STANDARD SPECIFICATIONS

Code

KU1

KU2

FM Explosionproof approval

Explosionproof Class I, Division 1, Groups A, B, C and D;

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

“FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.” Enclosure Rating: NEMA 4X

Temperature Class : T6 Ambient Temperature : -40 to 60C (-40 to 140F)

Electrical Connection : 1/2 NPT female*

FM Intrinsically safe, non-incendive and Explosionproof approval combination*

[Intrinsically safe/non-incendive approval]

Factory Mutual (FM)

Intrinsically safe for Class I, II, III Division 1 Groups A, B, C, D, E, F and G.

Non-incendive for Class I, II, Division 2 Groups A, B, C, D, E, F and G Class III, Division 1.

Enclosure Type : 4X Temperature Class : T4 Ambient Temperature : -40 to 60C (-40 to 140F)

Supply : Vmax=30V, Imax=165mA, Pmax=0.9W, Ci=18nF, Li=730H

Sensor : Voc=9V, Isc=40mA, Po=90Mw, Ca=1F, La=10mH

[Explosionproof approval]

Class I, Division 1, Groups A, B, C and D.;

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

"FACTORY SEALD, CONDUIT SEAL NOT REQUIRED." Enclosure Ratings : NEMA4X

Temperature Class : T6 Ambient Temperature : -40 to

Electrical Connection : 1/2NPT female*

60C (-40 to 140F)

SAA Intrinsically safe, non-sparking and Flameproof approval combination

Standards Association of Australia (SAA)

Japanese Industrial Standards (JIS)

Attached flameproof packing adapter*

Ex ia IIC T4 (Tamb=70

Input parameters : Ui=30V, Ii=165mA, Pi=0.9W

Output parameters : Uo=8.6V, Io=30mA, Po=62mW, Co=1F

Ex d IIC T6 (Tamb=75

Electrical connection : 1/2 NPT female, Pg13.5 female and M20 female*

JIS Flameproof approval

Ex ds IIC T6 X Amb. Temp. : -20 to 60

Electrical connection : G1/2 female Applicable cable : O.D. 8.5 to 11 mm

C)

IP66/67, Ex n IIC T4(Tamb=70

C)

IP66/67

C

C)

, IP66/67

*1 : Applicable for Electrical Connection Code 2 and 4. *2 : Applicable for Electrical Connection Code 2. *3 : If cable wiring is to be used to a JIS flameproof type transmitter, do not fail to add the YOKOGAWA-assured flameproof packing adapter. *4 : Not applicable for Output Signal Code F. *5 : Applicable for Electrical connection code 2, 3 and 4.

FF1

FU1

SU1

JF3 G111 pc.

G122 pc.

T0706.EPS

7-6

IM 01C50B01-01E

7. STANDARD SPECIFICATIONS

Item

CSA Intrinsically safe, non-incendive and Explosionproof approval combination* [Intrinsically safe/non-incendive approval]

Intrinsically safe for Class I, Division 1, Groups A, B, C and D; Class II, Division 1, Groups E, F and G; Class III, Division 1: Non-incendive for Class I, Division 2, Groups A, B, C and D; Class II, Division 2, Groups E,

F and G; Class III, Division 1: Canadian Standards Association (CSA)

Enclosure Type 4X Temperature Class : T4, Ambient Temperature : -40 to 60C,

Supply : Vmax=30V, Imax=165mA, Pmax=0.9W, Ci=18nF, Li=730H

Sensor input : Voc=9V, Isc=40mA, Po=0.09W, Ca=1F, La=10mH

Electrical Connection : 1/2 NPT female*

[Explosionproof approval]

Explosionproof Class I, Div.1, Groups B, C and D, Class II, Groups E, F and G, Class III. For

Class I, Div.2 Locations “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED”

Enclosure Type 4X Temperature Class : T4 Ambient Temperature : -40 to 60C

Electrical Connection : 1/2 NPT female*

*1 : Not applicable for Output Signal Code F. *2 : Applicable for Electrical Connection Code 2 and 4.

7.4 Dimensions

Electrical Connection

(Output signal)

111(4.37)

Electrical Connection

Descriptions

With Indicator

(Input signal)

Code

CU1

T0707.EPS

Unit: mm (Approx. inch)

65.4(2.57)

46(1.81) 65(2.56)

18.5

(0.73)

Terminal Cover

Communication Terminals (BT200 etc.) Connection hook

CHECK METER Connection hook

56(2.21)

102

(4.02)

164

(6.46)

Shrouding Bolt

(For Explosionproof approval)

(1.58)

2-inch pipe, ø60.5(ø2.38)

*1: When Integral Indicator is specified.

Terminal Configuration

Power Supply and output terminal

External Indicator (ammeter) terminal

Ground terminal

*2: When using an external indicator or check meter,

the internal resistance must be 10Ω or less.

M101.5 12-deep female for mounting bracket

The hook is not available for Fieldbus communication type(output signal code F).

(0.99)

70(2.76)

90(3.55)

ø93

(3.66)

Ground T erminal Tag Plate

Mounting Bracket

F0701.EPS

7-7

IM 01C50B01-01E

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.

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.

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

Customer Maintenance

YTA Series Temperature T ransmitter

Parts List

[ Style : S2 ]

For F

OUNDATION

Fieldbus Type

Yokogawa Electric Corporation

YTA_CMPL.EPS

CMPL 01C50B01-02E

8th Edition: Oct. 2001 (YK)

Item Part No. Description

F9165EA

B1000ER

Y9406JB

See Table 1

B1002BT

F9342MW

F9165DH

F9300AG

F9165DF

F9300AG

F9165FA

F9167DA

B1001BT

Y9016NU

D0117XL-A

Y9100SU

F9165CY

Y9406ZU

Below

G9601AM 20 21 22

See Table 2 23

Y9420JB 24

F9165KA 25

F9165KF 26

F9165KD

Qty

Cover

O-Ring

Screw Machine

CPU Assembly for BRAIN or HART Communication type

Stud Bolt

Connector Assembly

Name Plate

Screw

Tag Plate

Screw

Cover Assembly

LCD Assembly

Stud Bolt

Bolt Hexagon

U-bolt Assembly

Washer Spring

Bracket

Screw

Cable Grand Assembly (for JIS Flameproof; option code: /JF3)

For Electrical Connection: G 1/2 female (option code: /G11)

Case Asseembly for BRAIN or HART Communication type

Case Asseembly for Fieldbus Communication type

CPU Assembly for Fieldbus Communication type

Screw Machine

Screw

Nut

Stud Bolt

Table 1. CPU Assembly (for BRAIN and HART)

Model

YTA110

YTA310

YTA320

Table 2. CPU Assembly (for Fieldbus)

Model

YTA320

Communication

protocol

-D (BRAIN)

-E (HART)

-D (BRAIN)

-E (HART)

-D (BRAIN)

-E (HART)

Communication

protocol

-F (Fieldbus)

Without

/CM1

F9167BJ F9167BM F9167BK F9167BN F9167BL F9167BP

Without

/LC1, /LC2

F9167HD F9167HE

F9167BU F9167BW F9167BV F9167BX

With /CM1

With /LC1

With /LC2

F9167HF

Oct. 2001 Subject to change without notice. Printed in Japan.

CMPL 01C50B01-02E

REVISION RECORD

Title: Model YTA series Temperature Transmitter (Hardware) [Style: S2]

Manual No.: IM 01C50B01-01E

Edition Date Page Revised item

1st Sep. 1998 — New Publication

2nd Nov. 1998 2.7.1 Add subsection 2.7.1 CSA certification.

3rd Jan. 1999 2.7.3 Add subsection 2.7.3 FM certification.

2-5 2-7 2-9 5-5

7-2 to 7-3

2-9 5-3 6-2 6-7 6-9 7-1 7-5 7-6

CMPL

2.7.2 Add subsection 2.7.2 CENELEC(KEMA) certificated.

2.8 Add subsection 2.8 EMC Conformity Standards.

5.5 Add wiring cautions for intrinsically safe type and flameproof type.

7.1 Correct errors.

5.4 Delete resistance 4-wire type. (Figure 5.6 &5.7)

6.2.2 Delete resistance 4-wire type. (Figure 6.1)

6.4. Add HART parameter.

6.5 Correct errors. (Er-05 & Er-06 in Table 6.4)

7.1 Delete resistance 4-wire type

7.3 Add optional code /FF1.

7.4 Add Terminal dimensions. CMPL 1C50B1-02E 1st to 2nd Page 1 Correct dimensions

4th June 1999 Add Ex-B02E 'Installation and Operating Precautions for JIS Flameproof

5th July 2000

6th July 2000

7th July 2001

Contents

2-1

2-7 2-10 2-12 2-13

5-1

5-3

5-6

6-3

7-4

Ex-B02E

CMPL

Cover

Contents

2-13

7-1

7-3

7-4

CMPL

2-15

7-1

7-4 to 7-6

EX-B03E

CMPL

2.1 Add C-tick mark.

Equipment'.

2.7.2 Add IEC (KEMA) Type of protection 'n'

2.7.3 Add FM Intrinsically Safe Type

2.7.4 Add JIS Flameproof Type

2.8 Add C-tick mark

5.1 Add 'IMPORTANT' for JIS Flameproof type.

5.3.2 Add 'WARNING' for JIS Flameproof type.

5.5(2) Add cable wiring procedure using Flameproof Packing adapter.

6.3 Add Figure 6.3.

7.3 Add optional code /CM1, /FU1, /JF3, /G11, and /G12. Add Ex-B02E 'Installation and Operating Precautions for JIS Flameproof Equipment'. Add item 18, 19, 20, and 21.

Add Style code Add 2.7.5 Add '2.7.5 SAA Certification'

7.1 Correct Description of Ambient temperature effect Add Table 7.2 YTA110 Effect of Ambient Temperature'

7.4 Add Stainless steel housing Change Item 4

2-15 Change referred standard

7. Add Notes for Fieldbus type, change EMC standard.

7.1 Add codes and notes for Fieldbus type.

EX-B02E superseded to EX-B03E. CMPL 4th to 5th edition (Adding Fieldbus related parts)

8th May 2002

1-1 2-5 7-6

CMPL

2.7.2 Add descriptions based on ATEX directive.

Add “■ For Safety Using.”

7.3 Add Optional code KU2.

CMPL 6th to 7th edition (Fieldbus Type Part No. correction)

1. Item 5, B1002BT to Item 26, F9165KD

2. Item 23, F9165KA (Screw) to Y9420JB (Screw machine)

3. Item 24, Y9420JB (Screw machine) to F9165KA (Screw)

CMPL 1C50B1-02E 7th to CMPL 01C50B01-02E 8th

IM 01C50B01-01E

YOKOGAWA YTA110/CU1, YTA310/CU1, YTA320/CU1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. PREFACE

 Notes on the Instruction Manual

 Notes on Safety and Modifications

 For Safety Using

 Warranty

 Trade Mark

2. NOTES ON HANDLING

2.2 Transport

2.3 Storage

2.1 Nameplate

2.5 Use of a Transceiver

2.6 Insulation Resistance Test and Withstand Voltage Test

2.6.1 Insulation resistance test procedure

2.6.2 Withstand voltage test procedure

2.7 Installation of Explosion Protected T ype Transmitters

2.7.1 CSA Certification

2.7.2 CENELEC ATEX (KEMA) Certification

2.7.3 CENELEC (KEMA) Certification

2.7.4 FM Certification

2.7.5 JIS Certification

2.7.6 SAA Certification

2.8 EMC Conformity Standards

3. PART NAMES AND FUNCTIONS

3.1 Part Names

3.2 Setting the Hardware Error Burnout Change-over Switch

Figure 3.2 Built-in Indicator Display Function

4. INSTALLATION

5.1 Notes on Wiring

5.2 Loop Construction

5. WIRING

5.3 Cable Selection

5.3.1 Input signal Cable Selection

5.3.2 Output Signal Cable Selection

5.4.1 Input Terminal Connections

5.4.2 Output Terminal Connection

5.5 Wiring Cautions

5.6 Grounding

6. MAINTENANCE

6.1 General

6.2 Calibration

6.2.2 Calibration Procedure

6.3 Disassembly and Assembly

6.3.1 Replacement of Built-in Indicator

6.3.2 Replacement of CPU Assembly

6.4 Troubleshooting

6.4.1 Basic Troubleshooting Flow

6.4.2 Example of Troubleshooting Flow

6.5 Integral Indicator and Error Display

7. STANDARD SPECIFICATIONS

7.1 Standard Specifications

7.2 Model and Suffix Codes

7.3 Optional Specifications

7.4 Dimensions

INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT

REVISION RECORD