Yokogawa YTA320 User Manual

User’s
Manual

YTA Series
Temperature Transmitters
(Hardware)
[Style: S3]

IM 01C50B01-01E

IM 01C50B01-01E

14th Edition

YTA Series
Temperature Transmitters (Hardware)

IM 01C50B01-01E 14th Edition

CONTENTS

1. Preface ....................................................................................................... 1-1

■ Notes on the User’s Manual ............................................................................1-1

■ Notes on Safety and Modications ..

■ For Safe Use of Product...................................................................................1-1

■ Warranty ...........................................................................................................1-2

Trademarks ..

■

■ ATEX Documentation ..

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

.....................................................................................1-3

2. Notes on Handling .................................................................................... 2-1

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

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

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 Certication ................................................................................2-3

2.

7.2 ATEX Certication ..............................................................................2-5

2.

7.3 FM Certication ..................................................................................2-9

2.

7.4 TIIS Certication .............................................................................. 2-11

2.

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

2.

8 EMC Conformity Standards ...........................................................................2-13

2.

9 Low Voltage Directive .....................................................................................2-13

2.

................................................................1-1

1

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

3.

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

14th Edition: April 2013(KP)
All Rights Reserved, Copyright © 1998, Yokogawa Electric Corporation

IM 01C50B01-01E

5. Wiring ......................................................................................................... 5-1

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

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

3 Cable Selection .................................................................................................5-1

5.

3.1 Input signal Cable Selection ..............................................................5-1

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

5.

6. Maintenance .............................................................................................. 6-1

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

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

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

6.

2

7. GeneralSpecications ............................................................................ 7-1

7.1 StandardSpecications ...................................................................................7-1

7.2 ModelandSufxCodes ...................................................................................7-5

3 OptionalSpecications ....................................................................................7-5

7.

4 Dimensions ........................................................................................................7-7

7.

Installation and Operating Precautions for TIIS Flameproof Equipment

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

Customer Maintenance Parts List ..

....................................CMPL 01C50B01-02E

Revision Information

IM 01C50B01-01E

<1. Preface>

1. Preface

1-1

The YTA temperature transmitter is fully factory­tested according to the specications indicated on
the order.

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

This 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User’s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 specic client need.

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

• No special specications are contained in this
manual.

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

handling that does not adhere to the guidelines
established in the safety instructions.

maintenance should be performed on

• No
explosionproof type temperature transmitters
while the equipment is energized. If
maintenance is required with the cover open,
always rst 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 modications of an explosionproof
type transmitter.

■ForSafeUseofProduct

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.

case of high process temperature, care

• In
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.

ease conrm that voltages between the

• Pl
power supply and the instrument before
connecting the power cables and that the
cables are not powered before connecting.

■NotesonSafetyandModications

• 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

(c) Maintenance

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

re should be taken to prevent the build up of

• Ca
drift, dust or other material on the display glass
and name plate. In case of its maintenance, soft
and dry cloth is used.

IM 01C50B01-01E

<1. Preface>

1-2

IM 01C50B01-01E

WARNING

CAUTION

IMPORTANT

NOTE

(d) Modication

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

 Symbols used in this manual

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

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

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

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

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

Some of the diagrams in this manual are partially
omitted, described in writing, or simplied 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.

 Conditions not eligible for charge-

exempt repair.

• Problems caused by improper or insufcient
maintenance on the part of the customer.

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

• Problems caused by improper installation
location or by maintenance conducted in a non­conforming location.

• Trouble or damage was caused by modication
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 re,
earthquake, wind or ood damage, lightning
strikes or other acts of God that are not directly
a result of problems with this instrument.

■Trademarks

• 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.

<1. Preface>

GB

DK

I

E

NL

SF

P

F

D

S

LT

LV

PL

EST

SLO

H

BG

RO

M

CZ

SK

GR

■ATEXDocumentation

This procedure is only applicable to the countries in European Union.

1-3

IM 01C50B01-01E

<2. Notes on Handling>

2. Notes on Handling

2-1

The YTA temperature transmitter is fully
factorytested 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.

Bracket
fastening bolt

U-bolt nut

Vertical pipe

mounting

bracket

Spring
washer

Bracket
fastening nut

Figure 2.1 Transmitter mounting parts

Spring
washer

U-bolt

U-bolt nut

Horizontal
pipe mounting
bracket

Transmitter
fastening bolt

F0201.ai

2.1 Nameplate

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 satises 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)

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.

The model name and conguration are indicated
on the nameplate. Verify that the conguration
indicated in the “Model and Sufx Code” in Chapter
7 is in compliance with the specications written on
the order sheet.

Specification code

TEMPERATURE
TRANSMITTER

YTA

MODEL
SUFFIX

STYLE
SUPPLY

Style code

Figure 2.2 Name plate

Model name

NO.
OUTPUT
CAL
RNG

Serial No.

Factory-shipped range and unit

F0202.ai

2.2 Transport

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

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 uctuations.
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.

IM 01C50B01-01E

<2. Notes on Handling>

2-2

IM 01C50B01-01E

CAUTION

(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 inuence 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

(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

nput terminal

i

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. T

urn 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 100MΩ
or more is conrmed (or 20MΩ if the unit is
equipped with a built-in arrester).

5. Upon completion of the test, remove the
insulation resistance meter, connect a 100KΩ
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 100MΩ
or more is conrmed (or 20MΩ if the unit is
equipped with a built-in arrester).

3. Upon completion of the test, remove the
insulation resistance meter, connect a 100KΩ
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.

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 100MΩ

<2. Notes on Handling>

CAUTION

2-3

or more is conrmed (or 20MΩ if the unit is
equipped with a built-in arrester).

3. Upon completion of the test, remove the
insulation resistance meter, connect a 100KΩ
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.

2.6.2 Withstand voltage test procedure

 Testing between the output terminal and

he input terminal

t

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 specied
value.

5. The voltage at the specied 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 specied
value.

3. The voltage at the specied 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.

fter setting the current limit value of the

2. A
withstand voltage tester to 10mA, turn the
power ON, and gradually increase the
impressed voltage from 0V to the specied
value.

3. The voltage at the specied 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 Type 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.

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Certication

Model YTA110/CU1, YTA310/CU1 and YTA320/
CU1 temperature transmitters can be selected the
type of protection (CSA Intrinsically Safe, Non­incendive, or Explosionproof) for use in hazardous
locations.

te 1. For the installation of this transmitter, once

No

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.

IM 01C50B01-01E

<2. Notes on Handling>

2-4

IM 01C50B01-01E

F0203.ai

Safety Barrier

Supply

Hazardous Location Nonhazardous Location

General
Purpose
Equipment

+

–

+

–

+

–

Supply

+

–

+

–

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

Not Use
Safety Barrier

+

–

[Non-incendive]

General
Purpose
Equipment

Sensor

1
2
3
4
5

Sensor

1
2
3
4
5

YTA Series
Temperature
Transmitter

YTA Series
Temperature
Transmitter

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.1- 2”)
Note 1. Model YTA110/CU1, YTA310/CU1 and

YTA320/CU1 temperature transmitters are

applicable for use in hazardous locations:
Certicate 172608-0001053837
[For CSA C22.2]

plicable Standard: C22.2 No.0,

• Ap
C22.2 No.0.4, C22.2 No.25, C22.2 No.94,
C22.2 No.142, C22.2 No.157, C22.2 No.213

• 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, F & G, Class III, Division 1.

• Encl. “Type 4X”

• Temperature Class: T4

• Ambient temperature: –40 to 60°C

Note 2. Entity Parameters (Electrical/Nonincendive

eld 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 certied, and
the input voltage of the barrier must be less
than 250Vrms/Vdc.

• For non-incendive type, general purpose
equipment must be CSA certied and the
equipment which have non-incendive eld
wiring parameters.

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

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:
Certicate 1089576
[For CSA C22.2]

plicable Standard: C22.2 No.0,

• Ap
C22.2 No.0.4, C22.2 No.25, C22.2 No.30,
C22.2 No.94, C22.2 No.142, C22.2 No.157,
C22.2 No.213, C22.2 No.1010.1

• 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 gure.
WARNING: A SEAL SHALL BE INSTALLED

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

<2. Notes on Handling>

Sensor

Sensor

Non-hazardous
Location
Equipment

42 V DC Max.
4 to 20 mA DC
Signal

Non-hazardous LocationsHazardous Locations Division 1

50 cm Max.

Sealing Fitting

Conduit

Non-hazardous
Location
Equipment

42 V DC Max.
4 to 20 mA DC
Signal

Non-hazardous LocationsHazardous Locations Division 2

Sealing Fitting

Sealing Fitting

50 cm Max.

Certified/Listed Temperature 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

YTA Series

Conduit

F0204.ai

Certified/Listed Temperature 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.

2-5

• 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

REMOVING 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 modication or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void Canadian
Standards Explosionproof Certication.

2.7.2 ATEXCertication

Model YTA110/KU2, YTA310/KU2 and YTA320/
KU2 temperature transmitters can be selected the
type of protection (ATEX Intrinsically Safe “ia” or
ATEX Flameproof or ATEX Intrinsically Safe “ic”) 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.

IM 01C50B01-01E

<2. Notes on Handling>

2-6

IM 01C50B01-01E

Transmitter

Supply

Safety Barrier

*1

Hazardous Location Nonhazardous Location

+

–

+

–

[Installation Diagram]

F0205.ai

Sensor

1
2
3
4
5

(1) Technical Data

a) ATEX Intrinsically Safe “ia”

Caution for ATEX Intrinsically safe “ia”
Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters for
potentially explosive atmospheres:

. KEMA 02ATEX1026X

• No

• Applicable Standard: EN 60079-0:2009,
EN 60079-11:2007, EN 60079-26:2007,
EN 60529:1991

• Type of Protection and Marking code: II 1 G Ex
ia IIC T4...T5

• 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
1 G Ex ia IIC only for connection to a certied
intrinsically safe circuit with following maximum
values:

• [S

upply circuit]
Ui = 30 V Ii = 165 mA
Pi = 900 mW
Effective internal capacitance, Ci = 20 nF
Effective internal inductance, Li = 730 μH

• [Sensor circuit]
Uo = 9 V Io = 40 mA
Po = 90 mW
Max. allowed external capacitance, Co = 0.7μF
Max. allowed external inductance, Lo = 10 mH

• The above parameters apply when one of the
two conditions below is given:

- the total Li of the external circuit (excluding

the cable) is < 1% of the Lo value or

- the total Ci of the external circuit (excluding

the cable) is < 1% of the Co value.

• The above parameters are reduced to 50%
when both of the two conditions below are
given:

e total Li of the external circuit (excluding

- th

the cable) is ≥ 1% of the Lo value and

- the total Ci of the external circuit (excluding

the cable) is ≥ 1% of the Co value.

• The reduced capacitance of the external circuit
(including cable) shall not be greater than 1μF
for Group IIB and 600nF for Group IIC.

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.

WA

RNING: POTENTIAL ELECTROSTATIC

CHARGING HAZARD. SEE
USER’S MANUAL BEFORE USE.

Note 5. Maintenance and Repair

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

Note 6. Specic condition of 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.

• Avoid any actions that cause the generation of
electrostatic charge on the non-metallic parts,
such as rubbing with a dry cloth on coating face
of product.

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

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

b) ATEX Flameproof Type and Dust Ignition

Proof Type

Caution for ATEX Flameproof Type and Dust
Ignition Proof Type
Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters are
applicable for use in hazardous locations:

. KEMA 07ATEX0130

• No

• Applicable Standard: EN 60079-0:2006,
IEC 60079-1:2007, EN 61241-0:2006,
EN 61241-1:2004

• Type of Protection and Marking Code: II 2 G
Ex d IIC T6/T5, II 2 D Ex tD A21 IP67 T70°C,
T90°C

• Ambient Temperature for Gas Atmospheres:

–40 to 75°C (T6), –40 to 80°C (T5)

<2. Notes on Handling>

WARNING

2-7

• Ambient Temperature for Dust Atmospheres:
–40 to 65°C (T70°C), –40 to 80°C (T90°C)

• 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 certied

ameproof 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 modication or parts

replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void ATEX

Flameproof Certication.

c) ATEX Intrinsically Safe “ic”

When using a power supply not having a non­incendive circuit, please pay attention not to

ignite in the surrounding ammable atmosphere.

In such a case, we recommend using wiring
metal conduit in order to prevent the ignition.

Caution for ATEX Intrinsically Safe “ic”
Note 1. Model YTA110/KU2, YTA310/KU2 and

YTA320/KU2 temperature transmitters for
potentially explosive atmospheres:

plicable standard: EN 60079-0:2009,

• Ap
EN 60079-0:2012, EN 60079-11:2012

• Type of Protection and Marking:

II 3 G Ex ic IIC T5…T4 Gc

• Ambient Temperature: –30 to 50°C for T5,
–30 to 70°C for T4

• IP Code: IP67

• Overvoltage Category: I

Note 2. Electrical Data

upply circuit]

• [S
Ui = 30 V
Effective internal capacitance, Ci = 28 nF

Effective internal inductance, Li = 730 μH

• [Sensor circuit]
Uo= 9 V Io = 40 mA Po = 90 mW

Max. allowed external capacitance, Co = 0.7 μF

Max. allowed external inductance, Lo = 10 mH

• The above parameters apply when one of the
two conditions below is given:

- the total Li of the external circuit (excluding

the cable) is < 1% of the Lo value or

- the total Ci of the external circuit (excluding

the cable) is < 1% of the Co value.

• The above parameters are reduced to 50%
when both of the two conditions below are
given:

- the total Li of the external circuit (excluding

the cable) is ≥ 1% of the Lo value and

- the total Ci of the external circuit (excluding

the cable) is ≥ 1% of the Co value.

• The reduced capacitance of the external circuit

(including cable) shall not be greater than 1μF

for Group IIB and 600nF for Group IIC.

Note 3. Installation

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

• Cable glands, adapters and/or blanking
elements shall be of Ex “n”, Ex “e” or Ex “d” and

shall be installed so as to maintain the specied

degree of protection (IP code) of the equipment.

Note 4. Operation

• Keep strictly the “WARNING” on the label on
the transmitter.
WARNING: POTENTIAL ELECTROSTATIC
CHARGING HAZARD - SEE USER’S MANUAL

Note 5. Maintenance and Repair

• The instrument modication or parts

replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void ATEX
Intrinsically Safe “ic“.

Note 6. Specic Conditions of Use

• Precautions shall be taken to minimize the risk
from electrostatic discharge of painted parts.

• The dielectric strength of at least 500 V a.c.
r.m.s between the intrinsically safe circuits
and the enclosure of the Model YTA series
temperature transmitter is limited only by the
overvoltage protection.

IM 01C50B01-01E

<2. Notes on Handling>

2-8

IM 01C50B01-01E

Temperature Transmitter

Electrical data are as follows;

Supply Input (Terminals: + and -)

Ui = 30 V
Ci = 28 nF

Li = 730 μH

Sensor Output (Terminals: 1 to 5)

Uo = 9 V
Io = 40 mA
Po = 90 mW

Co = 0.7 μF
Lo = 10 mH

SUPPLY

SUPPLY

SENSOR

Associated Apparatus

Hazardous Area Non-hazardous Area

+

–

+

–

C

F0206.ai

1
2
3
4
5

SENSOR

MarkingScrew Size

ISO M20×1.5 female M

AANSI 1/2 NPT female

T0201.ai

F0207.ai

Location of the marking

WARNING

WARNING

WARNING

F0208.ai

TEMPERATURE
TRANSMITTER

YTA

MODEL
SUFFIX

STYLE
SUPPLY

NO.
OUTPUT
CAL
RNG

*3

(5) Maintenance and Repair

The instrument modication or parts replacement

by other than authorized Representative of
Yokogawa Electric Corporation is prohibited and

will void the certication.

(6) Name Plate

(2) Electrical Connection

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

(3) Installation

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

(4) Operation

• 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.

MODEL: Specied model code.
SUFFIX: Specied sufx code.

STYLE: Style code.
SUPPLY: Supply voltage.
NO.: Serial number and year of production*1.
OUTPUT: Output signal.

FACTORY CAL: Specied calibration range.

TOKYO 180-8750 JAPAN:

The manufacturer name and the address*2.

*1: The third gure from the left shows the production year.

The relationship between the production year and the

third gure is shown below.

The third gure F G H J K L M

The year of
Production

2006 2007 2008 2009 2010 2011 2012

<2. Notes on Handling>

The year 2006

C2F616294

F0209.ai

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

Temperature
Transmitter

Safety Barrier

Hazardous
Location

Nonhazardous
Location

General
Purpose
Equipment

+

–

+ –

+

–

C

+

–

[Intrinsically Safe]

Supply

1
2
3
4
5

Sensor

Intrinsically
Safe Sensor
or Simple
Apparatus

2-9

For example, the production year of the product engraved

in “NO.” column on the name plate as follows is 2006.

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

address.

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

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

2.7.3 FMCertication

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.

plicable Standard: FM 3600, FM 3610,

• Ap
FM 3611, FM 3810, NEMA-250

• 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 Po : 0.09 W
Ci : 18 nF Ca : 1 μF
Li : 730 μH La : 10 mH

• 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 (Classied) 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).

st-tight conduit seal must be used when

• Du
installed in a Class II and III environments.

Note 4. Maintenance and Repair

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

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.

plicable Standard: FM 3600, FM 3610,

• Ap
FM 3611, FM 3810, NEMA-250

• Non-incendive for Class I, Division 2, Groups A,
B, C & D.

Class II, Division 2, Groups 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 eld 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 Po : 0.09 W
Ci : 18 nF Ca : 1 μF
Li : 730 μH La : 10 mH

IM 01C50B01-01E

<2. Notes on Handling>

2-10

IM 01C50B01-01E

F0210.ai

Temperature
Transmitter

General
Purpose
Equipment

+

–

C

Supply

1
2
3
4
5

Sensor

Non-incendive
Sensor
or Simple
Apparatus

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

Hazardous
Location

Nonhazardous
Location

+

–

[Nonincendive]

• For the sensor input circuitry, these non­incendive 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

eld wiring parameters of general purpose
equipment.

Note 3. Installation

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

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

70).

• 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

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

c) FM Explosionproof Type

Caution for FM Explosionproof type
Note 1. Model YTA /FU1 and YTA /FF1 temperature

transmitters are applicable for use in hazardous
locations:

• Applicable Standard: FM 3600, FM 3615,
FM 3810, NEMA-250

• 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”.

Note 3. Operation

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

RNING: OPEN CIRCUIT BEFORE

WA

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

<2. Notes on Handling>

WARNING

2-11

2.7.4 TIISCertication

a) TIIS Flameproof Type

The model YTA /JF3 temperature transmitter, which
has obtained certication according to technical
criteria for explosion-protected construction of
electric machinery and equipment (Standards
Notication No.556 from the Japanese Ministry of
Labor) conforming to IEC standards, is designed
for hazardous areas where explosive gases and/or
inammable vapors may be present. (This allows
installation in Division 1 and 2 areas) To preserve
the safety of ameproof 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 TIIS Flameproof Equipment” at the end of this
manual.

The terminal cover should not be opened at least
for three minutes after the power is turned off.
The terminal section of the ameproof YTA
series is made of resin-lled, explosion­protected construction. The technical standards
for this ameproof construction require that
the possibility of explosion resulting from a
prospective short-circuit current*1 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 higher­order 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. Conrm that this is true with your factory.
No extra measures need be taken after the
conrmation.
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.

*1: Refers to a current that ows 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).

2.7.5 IECExCertication

a) IECEx Intrinsic safety “ia”

Caution for IECEx Intrinsic safety “ia”.
Note 1. Model YTA110/SU2, YTA310/SU2, and

YTA320/SU2 temperature transmitters are
applicable for use in hazardous locations:

. Certicate: IECEx KEM 09.0032X

• No

• Applicable standard: IEC60079-11:2011,
IEC60079-0:2011, IEC60079-26:2006

• Type of Protection and Marking Code:
Ex ia IIC T4...T5 Ga

• Ambient Temperature:

-40 to 70°C for T4, -40 to 50°C for T5

• Enclosure: IP67

Note 2. Electrical Data

• [Supply circuit (Terminals: + and –)]

Ui = 30 V, Ii = 165 mA, Pi = 900 mW
Effective internal capacitance, Ci = 20 nF
Effective internal inductance, Li = 730 μH

• [Sensor circuit (Terminals: 1 to 5)]

Uo = 9 V Io = 40 mA Po = 90 mW
Max. allowed external capacitance, Co = 0.7 μF
Max. allowed external inductance, Lo = 10 mH

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: POTENTIAL ELECTROSTATIC

CHARGING HAZARD. SEE
USER’S MANUAL BEFORE USE.

Note 5. Maintenance and Repair

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

Note 6. Conditions of Certication

• Because the enclosure of the Temperature
Transmitter is made of aluminium, if it is mounted
in zone 0, it must be installed such, that, even in
the event of rare incidents, ignition sources due
to impact and friction sparks are excluded.

• Avoid any actions that cause the generation of
electrostatic charge on the non-metallic parts,
such as rubbing with a dry cloth on coating face
of product.

IM 01C50B01-01E

<2. Notes on Handling>

2-12

IM 01C50B01-01E

Transmitter

Supply

Safety Barrier

*1

Hazardous Location Nonhazardous Location

+

–

+

–

[Installation Diagram]

F0212.ai

Sensor

1
2
3
4
5

Temperature
Transmitter

Suppry

Power Supply

Hazardous Location
(Zone 2 only)

Nonhazardous Location

+

–

+

–

[Installation Diagram]

F0213.ai

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

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

b) IECEx Intrinsic safety “ic”

Caution for IECEx Intrinsic safety “ic”.
Note 1. Model YTA110/SU2, YTA310/SU2, and

YTA320/SU2 temperature transmitters are
applicable for use in hazardous locations:

. Certicate: IECEx KEM 09.0032X

• No

• Applicable standard: IEC60079-11:2011,
IEC60079-0:2011, IEC60079-26:2006

• Type of Protection and Marking Code:
Ex ic IIC T4...T5 Gc

• Ambient Temperature:

-40 to 70°C for T4, -40 to 50°C for T5

• Enclosure: IP67

Note 2. Electrical Data

• [Supply circuit (Terminals: + and –)]

Ui = 30 V, Ci = 20 nF, Li = 730 μH

• [Sensor circuit (Terminals: 1 to 5)]

Uo = 9 V, Io = 40 mA, Po = 90 mW, Co = 0.7 μF,

Lo = 10 mH

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: POTENTIAL ELECTROSTATIC

CHARGING HAZARD. SEE
USER’S MANUAL BEFORE USE.

Note 5. Maintenance and Repair

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

Note 6. Special condition for safe use

• Avoid any actions that cause the generation of
electrostatic charge on the non-metallic parts,
such as rubbing with a dry cloth on coating face
of product.

Ratings of the Power Supply are as follows:
Maximum Voltage: 30 V

c) IECEx Flameproof Type and Dust Ignition

Proof Type

Caution for IECEx ameproof type and Dust Ignition
Proof Type
Note 1. Model YTA110/SF2, YTA310/SF2, and

YTA320/SF2, YTA110/SU2, YTA310/SU2, and
YTA320/SU2 temperature transmitters are
applicable for use in hazardous locations:

. IECEx KEM 07.0044

• No

• Applicable Standard: IEC 60079-0,
IEC 60079-1, IEC 61241-0, IEC 61241-1

• Type of Protection and Marking Code:
Ex d IIC T6/T5, Ex tD A21 IP67 T70°C, T90°C

• Ambient Temperature for Gas Atmospheres:

–40 to 75°C (T6), –40 to 80°C (T5)

• Ambient Temperature for Dust Atmospheres:

–40 to 65°C (T70°C), –40 to 80°C (T90°C)

• 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 certied
ameproof 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.

<2. Notes on Handling>

NOTE

Note 5. Maintenance and Repair

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

2.8 EMC Conformity Standards

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

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.

2-13

2.9 Low Voltage Directive

Applicable standard: EN61010-1

(1) Pollution Degree 2

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

(2) Installation Category I

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

IM 01C50B01-01E

<3. Part Names and Functions>

F0301.ai

Amp. cover

LCD assembly
(with indicator)

Burn out output direction
setting pin upon hardware failure

CPU assembly

Stud bolt

Name plate

Grounding
terminal

Terminal cover

Grounding
terminal

Wiring connector
(input signal side)

Output signal terminal

Wiring connector
(output signal side)

Input signal terminal

Tag plate

Lock screw
(for ATEX, IECEx and
TIIS flameproof type)

Built-in indicator display

3. Part Names and Functions

3.1 Part Names

3-1

Figure 3.1 Part Names

IM 01C50B01-01E

<3. Part Names and Functions>

3-2

IM 01C50B01-01E

T0301.ai

H

L

H

L

Pin

position

RemarkHardware error

burnout

direction

HIGH

LOW

110% or more

(21.6 mA DC)

-5% or less

(3.2 mA DC)

Set to HIGH upon
shipment from the
factory

Set to LOW when
suffix code /C1
is provided

Hardware error

burnout

output

F0302.ai

Output bar chart display

Communication protocol display

Operation mode
display

Display of sensor type and
number of wire connections

Unit display

Process variable display

Input display

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 sufx code
/C1 is specied, 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 01C50T03­01E “BRAIN Protocol”.

Table 3.1 Output Direction Setting Pins for

Hardware Error Burnout

(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%, ▼is lit. The bar chart
can be toggled ON/OFF using the bar chart display
parameter.

) Communication protocol display

(2

The indicator is on in accordance with each
communication protocol.

) Operation mode display

(3

Lit when each operation mode is activated.

D.: Lit when the multidrop mode of HART

M.

communication specication is activated.

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

communication specication.
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).

s1: Meant to show the process variable allocated

Sn

to Sensor 1.

3.3 Built-in Indicator Display Function

Figure 3.2 Built-in Indicator Display Function

s2: Meant to show the process variable allocated

Sn

to Sensor 2. (Can be displayed only with the
YTA320.) .

rm: Meant to show the temperature of the

Te

terminal box of the temperature transmitter.

g: Meant to show the average of the process

Av

variable allocated to Sensor1 and Sensor2.
(Can be displayed only with the YTA320.).

f: Meant to show the difference of the process

Di

variable allocated to Sensor1 and Sensor2.
(Can be displayed only with the YTA320.)

) Process variable display

(5

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 rst 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 specied 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
identied, or the temperature transmitter is found
abnormal, an error code ashes.

<3. Part Names and Functions>

3-3

For a list of error codes, refer to “Error code table” in
Section 6.4.

(6) Unit display

The unit specied as the unit of process in the
process variable display column in Item (5) is lit.
The output display is xed to mA or %.

) Display of sensor type and number of wire

(7

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.

Table 3.2 Setting of Indicator upon Shipment

Display location Contents

Output bar chart display Output bar chart display

Input display Sns1 is lit.
Process variable display PV value and output

Unit display The unit specied upon

Display of sensor type
and number of wire
connections

from the Factory

is on.

value (mA) are alternately
displayed.

shipped from factory and
mA are lit.

“PV” and “OUT” are
displayed alternately.

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”.

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

IM 01C50B01-01E

<4. Installation>

IMPORTANT

F0401.ai

Horizontal Pipe Mounting Vertical Pipe Mounting

U-bolt nut

Spring washer

Horizontal pipe

mounting bracket

U-bolt

Wall Mounting

Note: Wall mounting bolts are

user-supplied.

Transmitter

fastening bolt

U-bolt nut

Vertical pipe

mounting

bracket

Transmitter
fastening bolt

Spring washer

Spring washer

U-bolt

Bracket

fastening bolt

Bracket
fastening nut

• When using a horizontal pipe mounting bracket

• When using a vertical pipe mounting bracket

4. Installation

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

• When performing on-site pipe tting work that
involves welding, use care to prevent outow
of the welding current into the transmitter.

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

“Choosing the installation location”.

• Th

e 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.

4-1

Figure 4.1 Mounting the Transmitter

IM 01C50B01-01E

<5. Wiring>

IMPORTANT

F0501.ai

<Hazardous location> <Nonhazardous location>

+

Output signal

–

Distributor

(power supply unit)

Receiver

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

F0502.ai

<Hazardous location> <Nonhazardous location>

+

Output signal

–

Distributor

(power supply unit)

Receiver

Safety
barrier

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

600

250

10.5 16.4 24.7 42

Power supply voltage E (V DC)

R=

0.0236

E–10.5

F0503.ai

External

load

resistance

R

(Ω)

Communication

applicable range

BRAIN and HART

5. Wiring

5.1 Notes on Wiring

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

• 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 ATEX, IECEx
and TIIS ameproof 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.

Figure 5.1 Loop Construction (for General-use

Type and Flameproof Type)

Figure 5.2 Loop Construction (for Intrinsically

Safe Type)

5-1

5.2 Loop Construction

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

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 01C50T03­01E “YTA Series BRAIN Communication”,
and IM 01C50T01-01E “YTA Series HART
Communication”.

Figure 5.3 Relation between Power Supply

Voltage and Load Resistance

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

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

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.

IM 01C50B01-01E

<5. Wiring>

5-2

IM 01C50B01-01E

WARNING

NOTE

CAUTION

F0504.ai

a. Cable connection to thermometer resistor(RTD), 3-wire

b. Power supply cable connection

STEP 1

(1)

STEP 2

(2)

F0505.ai

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.

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

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.

If the YTA is TIIS ameproof 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

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

Figure 5.4 Terminal Connection Pro cedure

 The temperature sensor is to be

connected as shown in Figures 5.6 and

5.7.

Figure 5.5 Terminal diagram

<5. Wiring>

F0506.ai

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

(–)

(+)

(B)

(A)

(B)

(A)

(B)

(B)

(A)

(A)

(B)

Thermocouple and

DC voltage

RTD and resistance

(2-wire)

RTD and resistance

(3-wire)

RTD

(4-wire)

Sensor1(YTA110, YTA310)

(B1)

(A1)

1
2
3
4
5

(–)

(+)

1
2
3
4
5

(B1)

(B1)

1
2
3
4
5

(–)

(+)

1
2
3
4
5

(+)

(A1)

(B2)

(B2)

(A2)

(A)

(B)

(B)

(B2)

(A2)

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

(–)

(+)

(B)

(A)

(B)

(B)

(B)

(A)

(A)

(A)

(B)

Thermocouple and

DC voltage

RTD and resistance

(3-wire)

Thermocouple +

RTD and resistance

(3-wire)

RTD and resistance

(2-wire)

2 input (YTA320)

Thermocouple and

DC voltage

RTD and resistance

(2-wire)

RTD and resistance

(3-wire)

RTD

(4-wire)

1 input (YTA320)

F0507.ai

F0508.ai

Field indicator

Power
supply

––+

+

F0509.ai

Check meter

+

–

Power
supply

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”.

) Connectionofwiringforeldindicator

(2

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

Note: Use a eld indicator with an internal resistance of 10Ω or

less.

Figure 5.6 YTA110 and YTA310 Input Terminal

Wire Connection Diagram

5-3

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 10Ω or less.

Figure5.9 CheckMeterConnection

Figure 5.7 YTA320 Input Terminal Wire Connection

Diagram

IM 01C50B01-01E

<5. Wiring>

5-4

IM 01C50B01-01E

F0510.ai

Apply a nonhardening
sealant to the threads for
waterproofing.

Wiring conduit

Tee

Flexible fitting

Drain plug

F0511.ai

Flameproof packing adapter

Apply a nonhardening
sealant to the threads for
waterproofing.

Wiring conduit

Tee

Flexible fitting

Drain plug

CAUTION

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.

ply nonhardening sealant to the threads of

• Ap
the wiring tap and a exible tting for secure
waterproong. Figure 5.10 shows an example
of wiring on the output side. This example also
applies to the wiring on the input side.

Figure 5.10 Example of Wiring Using a Wiring

(2) TIIS Flameproof Type

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

Wiringcablethroughameproofpacking

■
adapterforonlyTIISameprooftype(see

Figure 5.11)

• Use only ameproof packing adapters
approved by Yokogawa.

• Ap
box connection port and to the threads on the
ameproof packing adapter for waterproong.

Conduit

ply a nonhardening sealant to the terminal

• 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
Table 5.1).

Table5.1 FlameproofPackingandAppropriate

Wiring Port

Thread

Diameter

G1/2

Cable Outer Diameters

Appropriate
Cable Outer

Diameter

(mm)

8 - 10

10.1 - 121616

Identifying

Mark

10 - 12

8 - 10

Part

Number

G9601AM

Follow the procedure below to install the ameproof
packing adapter.

1. Screw the ameproof 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.

nsert the cable through the union cover, the

2. I
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 ameproof effectiveness will be
compromised.

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.

Figure 5.11 Typical Cable Wiring Using Flameproof

PackingAdapter

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.

<5. Wiring>

Adapter body

Rubber packing

Washer

Packing box

Grand

Clamp ring

Clamp nut

Union coupling

Union cover

O-ring

Lock nut

Lock nut

Cable

Be sure to apply
non-hardening sealant to the
threads for water proofing.

F0512.ai

CAUTION

F0513.ai

Non-hazardous
area

Hazardous
area

Flameproof
heavy-gauge
steel conduit

Tee

Drain plug

Gas sealing
device

Flameproof flexible
metal conduit

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.

WARNING

F0514.ai

Grounding
terminal
(Inside)

Grounding
terminal
(Outside)

5.6 Grounding

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

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

5-5

Figure5.12 FlameproofGlandPackingAdapter

lnstallation

■ Flameproofmetalconduitwiring

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

ply a nonhardening sealant to the threads of

• Ap
the terminal box connection port, exible metal
conduit and seal tting for waterproong.

For TIIS flameproof type and intrinsically safe,
grounding should satisfy Class D requirements
(grounding resistance, 100Ω or less).

Figure 5.14 Grounding Terminal

Figure 5.13 Typical Wiring Using Flameproof Metal

Conduit

IM 01C50B01-01E

<6. Maintenance>

IMPORTANT

F0601.ai

1
2
3
4
5

1
2
3
4
5

(A)

(B)

(B)

(A)

a. Wiring of power supply and output

b. Example of wiring for thermocouple or DC voltage input

(when 1 input type is used)

+ Output signal

– Load

resistance

DC voltage generator

Voltmeter

c. Example of wiring for thermometer resistor 4-core type

(when 1 input type is used)

Variable resistor

(+)
(–)

6. Maintenance

6-1

6.1 General

Each component of this instrument is congured 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.

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 Model 1271

Universal
calibrator

Variable
resistor

SDBT, SDBS type
distributor

2792 type standard
resistor
(250Ω ±0.005%)

digital multimeter
(accuracy: ±0.002%)

Model 9100 type For calibration of

279301 type 6-dial
variable resistor
(accuracy: ±0.001%
±2mΩ)

4 to 20mA DC
(Output voltage:

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

For 4 to 20mA DC

For 4 to 20mA DC
signal

DC voltage and
thermocouple

For calibration
of thermometer
resistor (RTD) input

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 varied, 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.

Figure 6.1 Example of Wiring for Calibration

Equipment

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.

IM 01C50B01-01E

<6. Maintenance>

6-2

IM 01C50B01-01E

CAUTION

F0602.ai

Terminal cover

Lock bolt

CPU assembly

Stud bolt

Mounting screw

Amp. Cover

LCD board

(with indicator)

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 4- core wire connection.
As dened 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
Standard screwdriver
Hexagonal wrench
Crescent wrench
Torque wrench
Box wrench
Box screwdriver
Forceps

1
1
1
1
1
1
1
1

For M10 screw

Precautions for ATEX, IECEx and TIIS
Flameproof Type Transmitters

• For a withstand ameproof type transmitter,
as a rule, move the transmitter to a non­hazardous location, then proceed with
maintenance and restore the instrument to
the original condition.

r a withstand ATEX, IECEx and TIIS

• Fo
ameproof 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 ameproof 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 modication.

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.

Figure 6.3 Mounting and Removal of Built-in

Indicator and CPU Assembly

<6. Maintenance>

F0603.ai

NOTE

IMPORTANT

6-3

6.3.1 Replacement of Built-in Indicator

 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.

 Mounting the built-in indicator

Integral Indicator can be installed in the following
three directions.

6.3.2 Replacement of CPU Assembly

 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.

 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.

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.

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.

ount the cover.

4. M

IM 01C50B01-01E

<6. Maintenance>

6-4

IM 01C50B01-01E

YES

YES

NO

NO

F0604.ai

Measured value

is found faulty

Error in process

variable?

Faulty

area in measurement

system

Receiver error

Operating requirements:

check, study, correction

Check the transmitter

Environmental condition:

check, study, correction

Environmental condition

Operating requirements

Error in measurement
system

Transmitter

Inspect receiver

Inspect the process

: Part supported
by self-diagnosis

F0605.ai

YES

NO

NO

YES

NO

YES

NO

NO

YES

YES

Was a faulty

area found with self-

diagnosis?

Is the polarity

of the power supply

correct?

Are the power

supply voltage and load

resistance correct?

Is the sensor

correctly connected?

Is there a

disconnection in the loop?

Do the loop numbers

correspond to the

counterpart?

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.

Refer to our service personnel for details.

• If a built-in indicator is attached, check the
display of the error code.

• Connect a hand-held terminal and check
self-diagnosis.

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.

Check the sensor connection and
correct it.

Check for disconnection or faulty
wiring and take corrective
measures.

6.4 Troubleshooting

When the measured value is found abnormal,
follow the troubleshooting owchart below. If the
complex nature of the trouble means that the cause
cannot be identied using the following owchart,
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 owchart 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.

6.4.2 Example of Troubleshooting Flow

Figure 6.5 Basic Flow and Self-diagnosis

Figure 6.6 Example of Troubleshooting Flow

<6. Maintenance>

Table 6.3 Problems, Causes and Countermeasures

Observed
Problems

Output uctuates
greatly.

Possible Cause Countermeasure

Span is too narrow. Check the range, and

change the settings to make

(BRAIN protocol) (HART protocol)

F10:LRV
F20:URV

Related Parameter

the span larger.

J05:SNSR1 CLR
K05:SNSR2 CLR

L05:OUT CLR D/A Clr to Default

G10:OUTPUT MODE Loop test (122)

J05:SNSR1 CLR
K05:SNSR2 CLR

L05:OUT CLR D/A Clr to Default

F10:LRV
F20:URV

H10:REVERSE OUT —

H40:WRITE PROTCT Chng wrt Protect

B10:PV is
B20:SV is

D10:SENSOR1 TYPE
E10:SENSOR2 TYPE

Transmitter
outputs xed
current.

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.

The transmitter is in
manual (test output)
mode.

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.

Conguration of
Sensor1 and Sensor2 is
not correct.

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 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.

• Ch

eck the type and wire
settings for Sensor1 and
Sensor2.

• Check the connection of
Sensor1 and Sensor2.

F40:BURN OUT Sensor barnout

H20:SNSR BACKUP Snsr backup (14141)

B12:PV DAMPING PV damp (1322)

B13:DMP POINT PV damp 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.

Check the Sensor Burnout
setting.

Change the Sensor Backup
function to “enable.”

Set correct value.

If output uctuation is great,
set a greater value for PV
damping 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.

6-5

PV LRV (4)
PV URV (5)

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

(12343)

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

(12343)

PV LRV (4)
PV URV (5)

(Hot key)
PV is (11211)

SV is (11212)

Snsr1 cong (134)
Snsr2 cong (135)

(14315)

(1323)

IM 01C50B01-01E

<6. Maintenance>

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

Indicator BT200 display Cause Output operation upon error Action

N/A Good
Er-01 Output Too Low Input value is lower than the PV low

range value.

Er-02 Output Too High Input value is higher than the PV

upper range value.

Er-03 Sensor1 Failure Sensor1 fails or disconnects from

the terminal block.

Er-04 Sensor2 Failure

(YTA320 only)

Er-05 S1 Signal Error Sensor1 input value greatly exceeds

Er-06 S2 Signal Error

(YTA320 only)

Er-07 Amb Temp Low The ambient temperature exceeds

Er-08 Amb Temp High The ambient temperature exceeds

Er-09 Sns Backup Start

(YTA320 only)

Er-10 Illegal PV MAP There is a problem with the PV

Er-11 Term Sns Failure Terminal block temperature sensor

Er-12 EEPROM Failure EEPROM failed. The output goes to the value

Er-13 CPU Failure Output side hardware failure. The output goes to the value

Er-14 AD Conv Failure Input circuit hardware failure. The output goes to the value

Er-15 Reverse Cal Fail Conrmation Calculation result is

Sensor2 fails or disconnects from
the terminal block.

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 lower ambient temp limit and
the specied accuracy cannot be
achieved.

the upper ambient temp limit and
the specied accuracy cannot be
achieved.

Sensor backup mode is in effect. Sensor2 input is used as

mapping settings.

failed.

bad.

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%).

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

Continues to operate and
output.

Continues to operate and
output.

output. If sensor2 also fails,
the transmitter operate with
burnout settings.

Output status immediately
before error is retained
(HOLD).

Operation and output
continues.

set by the hardware failure
mode jumper.

set by the hardware failure
mode jumper.

set by the hardware failure
mode jumper.

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

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.

Contact our service personnel.

Contact our service personnel.

Contact our service personnel.

Contact our service personnel.

6-6

IM 01C50B01-01E

  <7.GeneralSpecications>

7. GeneralSpecications

7-1

7.1 StandardSpecications

For the specications of Fieldbus communication
type marked with (◊), refer to IM 01C50T02-01E.

Input signal:

Input points: YTA110; 1, YTA310; 1, YTA320; 2

Thermocouple (T/C):

J, K, E, T, R, S, B, N (JIS/IEC584), L, U
(DIN43710), W3, W5 (ASTM988)

Thermometer resistor (RTD):

Pt100, Pt200, Pt500 (IEC751), JPt100(JIS),

Cu, Ni120 2/3/4-wire
DC voltage: mV
Resistance: Resistor 2/3-wire

Input signal source resistance:

1kΩ or lower (at thermocouple, DC voltage
input)

Input lead wire resistance:

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

Output(◊):

Two wire 4 to 20 mA DC
Output range: 3.68 mA to 20.8 mA

Measuring range:

Refer to Table 7.1.

wersupplyvoltage(◊):

Po

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 30 VDC

mmunicationlineconditions(◊):

Co

Power supply voltage; 16.4 to 42 VDC
Load resistance; 250 to 600Ω (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 kΩ or higher (at 2.4 kHz)

Accuracy(◊):

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 compensation accuracy.

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

Am

bienttemperatureeffectper10°Cchange(◊):

YTA110;

±0.1% or ± (Temperature Coefcient/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)

Stability

RTD:

±0.1% of reading or ±0.1°C per 2 years,

whichever is greater at 23±2°C.
T/C:

±0.1% of reading or ±0.1°C per year,

whichever is greater at 23±2°C.

5 Year Stability

RTD:

±0.2% of reading or ±0.2°C,

whichever is greater at 23±2°C.
T/C:

±0.4% of reading or ±0.4°C,

whichever is greater at 23±2°C.

Ambient humidity:

5 to 100%RH at 40°C (104°F)

IM 01C50B01-01E

<7.GeneralSpecications>

7-2

IM 01C50B01-01E

Effectofsupplyvoltageuctuation:

±0.005%/V

Insulation:

Input/output insulated at 500 V DC

Mounting:

Mounted on 2B pipes and wall

Degrees of Protection:

IP66/IP67, NEMA 4X

Electrical connection:

Refer to “Model and Specication Codes”.

Case and cover:

Aluminum alloy casting

Painting:

Polyurethane resin baked nish
Deep sea moss green (equivalent of Munsell

0.6GY3.1/2.0)

Integral indicator (option):

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

Damping constant:

0 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 CISPR11

Material Cross Reference Table

SUS304 AISI 304
SUS316 AISI 316

  <7.GeneralSpecications>

Table 7.1 Input Type, Measurement Range and Accuracy

212
572
752

-328

-58toto

-328

-58toto

-328

-58toto

-328

-58toto

-58

32

212

1112

-58

32

212

1112

-328

-58toto

32

752
2552
3632

32

752
2552
3632

-328

-58toto

-328

-58toto

-328

-328

-328

-328

-94

-40toto

Accuracy

to

572

to

752

to

3308

-58

1832

-58

2192

-58

2502

-58

2372

to

32

to

212

to

1112

to

3214

to

32

to

212

to

1112

to

3214

-58

752

to

752

to

2552

to

3632

to

4172

to

752

to

2552

to

3632

to

4172

-58

1652

-58

1112

to

1562

to

1562

to

1562

to

932

-40

302

±3.0
±1.0

±0.75
±0.35

±0.16
±0.40

±0.20
±0.50

±0.25

±0.80

±0.35

±1.0

±0.80

±0.60
±0.40

±1.0

±0.80

±0.60
±0.40

±0.25
±0.14

±0.80

±0.50
±0.60
±0.90

±0.70
±0.50
±0.70
±0.90

±0.30
±0.20

±0.50
±0.25

±0.14
±0.30
±0.20
±0.16

±1.35

±1.0

(Recommended)

1562
1562
1562

932

Minimum

Span

25°C

(45°F)

10°C

(18°F)

100

to

300

to

400

to

-200

-50toto

-200

-50toto501200

-200

-50toto

-200

-50toto

-50

to

0

to

100

to

600

to

-50

to

0

to

100

to

600

to

-200

-50toto
0

to

400

to

1400

to

2000

to

0

to

400

to

1400

to

2000

to

-200

-50toto

-200

-50toto

-200

to

-200

to

-200

to

-200

to

-70

-40toto

Input range A/D Accuracy

300
400

1820

-50

1000

-50

1372

-50

1300

0
100
600

1768

0
100
600

1768

-50

400
400

1400
2000
2300

400

1400
2000
2300

-50

900

-50

600

850
850
850

500

-40

150

—

Sensor Type

T/C

JPt100

RTD

mV

ohm 0 to 2000 [Ω] 20 [Ω] ±0.35 [Ω]

Reference

Standard

B

E -200 to 1000 -328 to 1832

J -200 to 1200 -328 to 2192

K -200 to 1372 -328 to 2502

N -200 to 1300 -328 to 2372

IEC584

R -50 to 1768 -58 to 3214

S -50 to 1768 -58 to 3214

T -200 to 400 -328 to 752

W3

ASTM

E988

W5 0 to 2300 32 to 4172

L

DIN43710

U -200 to 600 -328 to 1112

Pt100
Pt200
Pt500

Cu

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

IEC751

JIS C1604

SAMA

RC21-4

—

Measurement Range

°C °F °C °F °C °F

100 to 1820 212 to 3308

0 to 2300 32 to 4172

-200 to 900 -328 to 1652

-200

to

850

-328

to

-200

to

850

-328

to

-200

to

850

-328

to

-200

to

500

-328

to

-70 to 150 -94 to 302

-10 to 100 [mV] 3 [mV]

±1.35
±0.63

±0.29
±0.72

±0.36
±0.90

±0.45
±1.44

±0.63

±1.44

±1.08

±0.72

±1.44

±1.08

±0.72
±0.45

±0.25
±1.44

±0.90

±1.08

±1.62
±1.26

±0.90
±1.26
±1.62

±0.54
±0.36

±0.90
±0.45

±0.25
±0.54
±0.36
±0.29

±2.43

±12 [μV]

7-3

D/A

Accuracy

±5.4

±1.8

±1.8

±1.8

±0.02%

of span

±1.8

Table 7.2 YTA110 Effect of Ambient Temperature

Sensor Type TemperatureCoefcient

Thermocouples E, J, K, N, T, L, U 0.08°C + 0.02% of abs.reading
Thermocouples R, S, W3, W5 0.25°C + 0.02% of abs.reading

100°C ≤ Reading < 300°C 1°C + 0.02% of abs.reading

T/C B

300°C ≤ Reading 0.5°C + 0.02% of abs.reading
RTD 0.08°C + 0.02% of abs.reading
mV 0.002 mV + 0.02% of abs.reading
ohm 0.1Ω + 0.02% of abs.reading

te1: Ambient Temperature Effect per 10°C change is

o

N

±0.1% or ±(temperature coefcient/span), whichever
is greater.

No

te2: The “abs.reading” on Table7.2 means the absolute

value of the reading in °C.
Example of abs reading;
When the temperature value is 250 Kelvin, abs reading

is 23.15, absolute (250–273.15).
Example of Ambient Temperature Effect;
Conditions;

1) Input Sensor: Pt100

2) Calibration Range: –100 to 100°C

3) Reading value: –50°C
Ambient Temperature Effect per 10°C;
Temperature Coefcient/Span
=(0.08°C+0.02/100×|–50°C|)/{100°C–(–100°C)}

= 0.00045→ 0.045%
Therefore, Ambient Temperature Effect is ±0.1%/10°C

IM 01C50B01-01E

<7.GeneralSpecications>

7-4

IM 01C50B01-01E

F0702.ai

Power Supply and output terminal

External Indicator (ammeter) terminal

*1

Ground terminal

Terminal Configuration

Communication
Terminals (BT200 etc.)
Connection hook

CHECK METER
Connection hook

*1

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

the internal resistance must be 10Ω or less.

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

M10×1.5 12-deep female
for mounting bracket

Table 7.3 YTA310, YTA320 Effect of Ambient Temperature

Sensor Type

100

B

E -200 to 1000 -328 to 1832 ± ( 0.035°C + 0.042 % of abs.reading)

J

K

N

R

T/C

S

T

W3

W5

L

U

Pt100
Pt200
Pt500

RTD

JPt100

Cu

Ni120 -70 to 320 -94 to 608 ± ( 0.016°C + 0.007 % of reading)

mV — ± (0.001mV + 0.0043 % of abs.reading)

ohm — ± ( 0.040Ω + 0.0088 % of reading)

300

1000

-2000to

-2000to

-2000to

-50

200toto

-50

200toto

-2000to

1400toto

1400toto

-2000to

-2000to

-200

-200

-200

-200

-70

Input Range

°C °F

to

300

to

1000

to

1820

1832

-32832toto32

to01200

-32832toto32

to01372

-32832toto32

to01300

200

1768

200

1768

-32832toto32

to0400

0

0

1400
2300322552toto

1400
2300322552toto

to0900

to0600
to

850

to

850

to

850

to

500

to

150

-32832toto32

-32832toto32

-328

-328

-328

-328

212
572

-58

392toto

-58

392toto

-94

to

572

± ( 0.530°C - 0.080 % of reading)

to

1832

± ( 0.350°C - 0.021 % of reading )

to

3308

± ( 0.140°C)

± ( 0.039°C + 0.020 % of abs.reading)

2192

± ( 0.039°C + 0.0029 % of reading)
± ( 0.046°C + 0.020 % of abs.reading)

2502

± ( 0.046°C + 0.0054 % of reading)
± ( 0.054°C + 0.010 % of abs.reading)

2372

± ( 0.054°C + 0.0036 % of reading)

392

± ( 0.210°C - 0.032 % of abs.reading)

3214

± ( 0.150°C)

392

± ( 0.210°C - 0.032 % of abs.reading)

3214

± ( 0.150°C)
± ( 0.046°C - 0.036 % of abs.reading)

752

± ( 0.046°C)

2552

± ( 0.100°C + 0.0040 % of reading)

4172

± ( -0.130°C + 0.020 % of reading)

2552

± ( 0.100°C + 0.0040 % of reading)

4172

± ( -0.120°C + 0.020 % of reading)
± ( 0.039°C + 0.020 % of abs.reading)

1652

± ( 0.039°C + 0.0029 % of reading)
± ( 0.046°C + 0.036 % of abs.reading)

1112

± ( 0.046°C)

to

1562

± ( 0.047°C + 0.009 % of reading)

to

1562

± ( 0.065°C + 0.012 % of reading)

to

1562

± ( 0.047°C + 0.009 % of reading)

to

932

± ( 0.047°C + 0.009 % of reading)

to

302

± ( 0.320°C + 0.120 % of reading)

DCoefcient D/ACoefeicient

A/

± {0.0088% of span + 0.007%
of (reading - LRV)}

Note: Temperature Effect = A/D coefeicnt + D/A coefcient (The data in the table is the coeffcient per 10°C change.)
Example 1; Pt100Ω, 0 to 200°C calibration range, 50°C reading

Example 2; T T/C, -100 to 100°C calibration range, 250°C reading

Terminals

(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 ]

(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 ]

  <7.GeneralSpecications>

Factorysetting(◊)

Tag No. Left blank if not specied in order Unit of calibration range “°C” if not specied in order
Input sensor type “Pt100, 3-wire” if not specied in order Damping constant 2 seconds
Lower calibration range “0” if not specied in order Sensor burnout High side (110%, 21.6 mA DC)
Upper calibration range “100” if not specied in order Output when transmitter fails High side (110%, 21.6 mA DC) *

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

7.2 ModelandSufxCodes

Model BasicSpecicationCodes Description

YTA110
YTA310
YTA320

Output
signal

— A· · · · · · · · · · · · · · · · · · Always A

Electrical connection 0 · · · · · · · · · · · · · ·

Built-in indicator D· · · · · · · · · · ·

Mounting bracket B· · · · · · ·

Additional specications

*1: Use bolts for wall mounting.

· · · · · · · · · · · · · · · · · · · · · ·

· · · · · · · · · · · · · · · · · · · · · ·

· · · · · · · · · · · · · · · · · · · · · ·

-D · · · · · · · · · · · · · · · · · · · ·

-E · · · · · · · · · · · · · · · · · · · ·

-F · · · · · · · · · · · · · · · · · · · ·

2 · · · · · · · · · · · · · ·
3 · · · · · · · · · · · · · ·
4 · · · · · · · · · · · · · ·

N· · · · · · · · · · ·

D· · · · · · ·
J · · · · · · ·
K· · · · · · ·
N· · · · · · ·

/

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 (YTA320 only)

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

Digital indicator
None

SUS304 Stainless steel 2-inch horizontal pipe mounting *
SUS304 Stainless steel 2-inch vertical pipe mounting *
SUS316 Stainless steel 2-inch horizontal pipe mounting
SUS316 Stainless steel 2-inch vertical pipe mounting
None

Additional specications

1

1

*1

*1

7-5

1

*

2

7.3 OptionalSpecications

Item Descriptions Code

Lightning protector Power supply voltage: 10.5 to 32 V DC

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

Painting Coating change Epoxy resin coating

Color change Amplier cover only Munsell renotation code: NI1.5 Black

Munsell renotation code: 7.5BG4/1.5, Jade green
Metallic silver

Amplier and Terminal covers Munsell renotation code: 7.5R4/14 Red

SUS316 exterior parts Exterior parts on the amplier housing (name plates, tag plate, screws)

will become SUS316 stainless steel
Stainless Steel Housing*
Wired tag plate SUS304 stainless steel tag plate wired onto transmitter
Calibration Unit Addition of Degree F and Degree R unit
Output signal low-side in

Transmitter failure*
NAMUR NE43

compliant*

Data Conguration*
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.
*3 : This specication is not included in option code E1. Select HC for SUS316 exterior parts regardless of E1.
*4 : When HC is selected, the material is SUS316 stainless steel.

2

1

Housing Material: SCS14A Stainless steel

2

2

Output signal low-side: –5 %, 3.2 mA DC or less.

Sensor burnout is also set to ‘Low’: –2.5 %, 3.6 mA DC

Output signal limits:

3.8 mA to 20.5 mA

Description into “Descriptor” parameter of HART protocol. (max. 16 characters)

2

RTD Sensor matching function

Failure alarm down-scale: output status at CPU failure and
hardware error is –5%, 3.2 mA or less.
Sensor burnout is also set to ‘Low’: –2.5%, 3.6 mA

Failure alarm up-scale: output status at CPU failure and
hardware error is 110%, 21.6 mA or more.
Sensor burnout is also set to ‘High’: 110%, 21.6 mA

*3

*4

A

X1

P1

P2

P7

PR

HC

E1

N4

D2

C1

C2

C3

CA

CM1

YTA110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

×

YTA310

YTA320



IM 01C50B01-01E

<7.GeneralSpecications>

7-6

IM 01C50B01-01E

[For Explosion Protected Types]

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

Item Descriptions Code

ATEX

Canadian Standards
Association (CSA)

Factory Mutual (FM)

Japanese Industrial
Standards (TIIS)

Attached ameproof
packing adapter

IECEx

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

adapter.

*5

: Applicable for Electrical connection code 2 and 4.

ATEX Intrinsically safe “ia”, Flameproof approval and Intrinsically safe “ic”

Electrical Connection: 1/2 NPT female and M20 female

*1

CSA Intrinsically safe, non-incendive and Explosionproof approval combination

Electrical Connection: 1/2 NPT female

*1

FM Explosionproof approval

Electrical Connection: 1/2 NPT female

*2

FM Intrinsically safe, non-incendive and Explosionproof approval combination

Electrical Connection: 1/2NPT female

*2

TIIS Flameproof approval

Electrical connection: G1/2 female

*4

Applicable cable: O.D. 8.5 to 11 mm
IECEx Intrinsically safe, Flameproof and Dust ignition proof Approval

Enclosure: IP67 Electrical Connection: 1/2 NPT female and M20 female

*3

*3

2 pc. G12

*5

KU2

CU1

FF1

FU1

JF3

SU2

  <7.GeneralSpecications>

65.4(2.57)

With Indicator
(Optional)

Unit: mm (Approx. inch)

Tag Plate

Terminal Cover

Electrical Connection
(Output signal)

Electrical Connection
(Output signal)

Electrical Connection

(Input signal)

Electrical Connection

(Input signal)

Ground Terminal

Horizontal Pipe Mounting Bracket

(Optional)

2-inch pipe, ø60.5(ø2.38)

2-inch pipe,
ø60.5 (ø2.38)

18.5

(0.73)

47(1.85) 66(2.60)

ø93

(3.66)

65.4(2.57)

Tag Plate

Terminal Cover

Ground Terminal

Vertical Pipe Mounting Bracket

(Optional)

18.5

(0.73)

47(1.85)

46(1.81)

64(2.52)

98(3.86)

70 (2.76)

66(2.60)

ø93

(3.66)

111(4.37)

56(2.21)

102

(4.02)

164

(6.46)

111(4.37)

101(3.98)

191.5

(7.54)

209.5
(8.25)

Shrouding Bolt

(For Explosionproof type)

Shrouding Bolt

(For Explosionproof type)

25

(0.98)

40

(1.57)

90(3.54)

70(2.76)

● 2-inch horizontal pipe mounting

● 2-inch vertical pipe or horizontal mounting

F0701.ai

With Indicator
(Optional)

7.4 Dimensions

7-7

IM 01C50B01-01E

<Installation and Operating Precautions for TIIS Flameproof Equipment>

Installation and Operating Precautions for TIIS Flameproof Equipment

ApparatusCertiedUnderTechnicalCriteria(IEC-compatibleStandards)

1

1. General

The following describes precautions on electrical apparatus of
ameproof construction (hereinafter referred to as ameproof
apparatus) in explosion-protected apparatus.

Following the Labour Safety and Health Laws of Japan,
ameproof apparatus is subjected to type tests to meet either
the technical criteria for explosionproof electrical machinery and
equipment (standards notication 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 certied apparatus
can be used in hazardous locations where explosive or
inammable gases or vapours may be present.

Certied apparatus includes a certication label and an
equipment nameplate with the specications necessary for
explosion requirements as well as precautions on explosion
protection. Please conrm these precautionary items and use
them to meet specication requirements.

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

To meet ameproof requirements, equipment that can be termed
“ameproof” must:

(

1

) Be certied by a Japanese public authority in accordance

with the Labour Safety and Health Laws of Japan and have
a certication label in an appropriate location on its case,
and

(2

) Be used in compliance with the specications marked on its

certication label, equipment nameplate and precautionary
information furnished.

2. Electrical Apparatus of Flameproof Type of
Explosion-Protected Construction

Electrical apparatus which is of ameproof construction is
subjected to a type test and certied by the Japanese Ministry
of Labour aiming at preventing explosion caused by electrical
apparatus in a factory or any location where inammable gases
or vapours may be present. The ameproof 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 ame caused
by explosion does not ignite gases or vapours outside the
enclosure.

In this manual, the word "ameproof" is applied to the ameproof
equipment combined with the types of protection "e", "o", "i", and
"d" as well as ameproof equipment.

3. Terminology

(1) Enclosure

An outer shell of an electrical apparatus, which encloses live
parts and thus is needed to congure 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 ameproof
enclosure minus the volume of the internal components essential
to equipment functions.

(4) Path length of joint surface

On a joint surface, the length of the shortest path through
which ame ows from the inside to outside of the ameproof
enclosure. This denition 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
classication of the specied gases and vapours.

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 specied gases are present. Those apparatus shall not be
installed in a hazardous area in Zone 0.

Note: Hazardous areas are classied in zones based upon the

frequency of the appearance and the duration of an explosive gas
atmosphere as follows:

o

ne 0: An area in which an explosive gas atmosphere is present

Z

continuously or is present for long periods.

Zo

ne 1: An area in which an explosive gas atmosphere is likely to

occur in normal operation.

Zo

ne 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
ameproof apparatus is limited to an ambient temperature range
from –20°C to +40°C (for products certied under Technical
Criteria). However, some eld-mounted instruments may be
certied at an ambient temperature up to +60°C as indicated
on the instrument nameplates. If the ameproof 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 ameproof metal
conduits for their electrical connections. For cable wiring,
cable glands (cable entry devices for ameproof type) to wiring
connections shall be attached. For metal conduits, attach sealing
ttings 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
ameproof type) specied 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 non-hardening sealant such as liquid
gaskets to those threads for waterproong.

EX-B03E

<Installation and Operating Precautions for TIIS Flameproof Equipment>

CAUTION

IMPORTANT

2

• Specic 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 exible
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 ll the ducts with sand
appropriately.

• When branch connections of cables, or cable connections
with insulated cables inside the conduit pipes are made,
a ameproof or increased-safety connection box shall be
used. In this case, ameproof 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 ameproof 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 ttings shall be used in the vicinity of
the wiring connections, and those ttings shall be lled with
sealing compounds to complete sealing of the apparatus.
In addition, to prevent explosive gases, moisture, or ame
caused by explosion form being propagated through the
conduit, always provide sealing ttings 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 classication

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 ve-thread
engagement to complete tightness. In addition, since these
parallel threads do not have sealing property, non-hardening
sealant such as liquid gaskets shall thus be applied to those
threads for ensuring waterproofness.

• If metal conduits need exibility, use ameproof exible
ttings.

(2) Repair

If the ameproof 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
ameproof 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 ameproofness, contact
Yokogawa Electric Corporation.

Do not attempt to re-process threaded connections or renish
joints or mating surfaces.

(c) Unless otherwise specied, the electrical circuitry and

internal mechanisms may be repaired by component
replacement, as this will not directly affect the requirements
for ameproof apparatus (however, bear in mind that the
apparatus must always be restored to its original condition).
If you attempt to repair the ameproof apparatus, company­specied components shall be used.

(d

) Before starting to service the apparatus, be sure to check all

parts necessary for retaining the requirements for ameproof
apparatus. For this, check that all screws, bolts, nuts, and
threaded connections have properly been tightened.

(3)Prohibitionofspecicationchangesand

modications

Do not attempt to change specications or make modications
involving addition of or changes in external wiring connections.

7. Selection of Cable Entry Devices for Flameproof
Type

6. Maintenance of Flameproof Apparatus

To maintain the ameproof 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 ameproof 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.

The cable glands (cable entry devices for ameproof type)
conforming to IEC Standards are certied in combination
with the ameproof apparatus. So, Yokogawa-specied cable
entry devices for ameproof type shall be used to meet this
demand.

References:

(1) Type Certicate 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 Safety.

EX-B03E

Yokogawa Electric Corporation

Customer

11

7

1

8

2

2

3

1

15

2

3

4

6

9

12

13

20

10

14

29

28

27

30
31

17

16

15

YTA_CMPL.ai

18

19

23

12

25

24

22

6

For FOUNDATION Fieldbus Type

5

21

26

Maintenance
Parts List

YTA Series
Temperature Transmitter
[ Style : S3 ]

All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation

CMPL 01C50B01-02E

14th Edition: April 2013 (YK)

Item Part No. Qty Description

1 F9165EA 2 Cover
2 B1000ER 2 O-Ring
3 Y9406JB 2 Screw Machine
4 See Table 1 1 CPU Assembly for BRAIN or HART Communication type
5 B1002BT 2 Stud Bolt

6 F9342MW 1 Connector Assembly
7 — 1 Name Plate
8 F9300AG 2 Screw
9 F9165DF 1 Tag Plate

10 F9300AG 2 Screw

11 F9165FA 1 Cover Assembly
12 Below 1 LCD Assembly

F9167DB For BRAIN and HART Communication type
F9167DC For Fieldbus Communication type

13 B1001BT 2 Stud Bolt

14 Y9016NU 1 Bolt Hexagon
15 D0117XL-A 1 U-bolt Assembly
16 Y9100SU 1 Washer Spring
17 F9165CY 1 Bracket
18 Y9406ZU 2 Screw (for ATEX, IECEx and TIIS ameproof type)

19 Below 1 Cable Grand Assembly (for TIIS Flameproof; option code: /JF3)

G9601AM For Electrical Connection: G 1/2 female (option code: /G11)

20 — 1 Case Assembly for BRAIN or HART Communication type
21 — 1 Case Assembly for Fieldbus Communication type
22 — 1 CPU Assembly for Fieldbus Communication type

2

23 Y9420JB 2 Screw Machine
24 F9165KA 2 Screw
25 F9165KF 2 Nut
26 F9165KD 2 Stud Bolt
27 F9284NZ 1 Bracket

28 F9165QB 1 Bracket
29 Y9616NU 4 Screw
30 Y9600SU 4 Washer
31 Y9601BU 4 Nut

Table 1-1. CPU Assembly (for BRAIN and HART)

Model

YTA110

YTA310

YTA320

Communication

protocol

-D (BRAIN) F9167BJ —

-E (HART) F9167BM —

-D (BRAIN) F9167BK F9167BU

-E (HART) F9167BN F9167BW

-D (BRAIN) F9167BL F9167BV

-E (HART) F9167BP F9167BX

Without

/

CM1

With
/CM1

CPU Assembly is shipped with
the setting shown in Table 2.

Table1-2.CPUAssembly(forBRAINandHART)when/SU2is specied

Model

YTA110

YTA310

YTA320

Communication

protocol

-D (BRAIN) F9167CJ —

-E (HART) F9167CM —

-D (BRAIN) F9167CK F9167CU

-E (HART) F9167CN F9167CW

-D (BRAIN) F9167CL F9167CV

-E (HART) F9167CP F9167CX

Without

/

CM1

With
/CM1

CPU Assembly is shipped with
the setting shown in Table 2.

Table 2. Setting upon shipment

Calibration range lower limit “0”

Calibration range upper limit “100”

April 2013
Subject to change without notice.

Input sensor type Pt100 three-wire system

Calibration unit “°C”
Sensor burnout High (110%, 21.6 mA DC)

CMPL 01C50B01-02E

Revision Information

 Title : Model YTA series

Temperature Transmitter (Hardware) [Style: S3]

 Manual No. : IM 01C50B01-01E

Edition Date Page Revised Item

1st Sep. 1998 — New Publication

2nd Nov. 1998 2-5

2-7
2-9
5-5

7-2 to 7-3

3rd Jan. 1999 2-9

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

CMPL

4th June 1999 Contents

2-1

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

5-1

5-3

5-6

6-3

7-4

EX-B02E

CMPL

5th July 2000 — —
6th July 2000 Cover

Contents

2-13

7-1

7-3

7-4

CMPL

7th July 2001 2-15

7-1

7-4 to 7-6
EX-B03E

CMPL

8th May 2002 1-1

2-5

7-6

CMPL

2.7.1

2.7.2

2.8

5.5

7.1

2.7.3

5.4

6.2.2

6.4

6.5

7.1

7.3

7.4

CMPL
Page 1

2.1

2.7.2

2.7.3

2.7.4

2.8

5.1

5.3.2

5.5(2)

6.3

7.3

7.1

7.4

2-15

7.

7.1

CMPL

2.7.2

7.3

CMPL

CMPL

Add subsection 2.7.1 CSA certication.
Add subsection 2.7.2 CENELEC(KEMA) certicated.
Add subsection 2.8 EMC Conformity Standards.
Add wiring cautions for intrinsically safe type and ameproof type.
Correct errors.

Add subsection 2.7.3 FM certication.
Delete resistance 4-wire type. (Figure 5.6 & 5.7)
Delete resistance 4-wire type. (Figure 6.1)
Add HART parameter.
Correct errors. (Er-05 & Er-06 in Table 6.4)
Delete resistance 4-wire type.
Add optional code /FF1.
Add Terminal dimensions.
1C50B1-02E 1st to 2nd
Correct dimensions.

Add EX-B02E 'Installation and Operating Precautions for JIS
Flameproof Equipment'.
Add C-tick mark.
Add IEC (KEMA) Type of protection 'n'.
Add FM Intrinsically Safe Type.
Add JIS Flameproof Type.
Add C-tick mark.
Add 'IMPORTANT' for JIS Flameproof type.
Add 'WARNING' for JIS Flameproof type.
Add cable wiring procedure using Flameproof Packing adapter.
Add Figure 6.3.
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 Certication'.
Correct Description of Ambient temperature effect.
Add Table 7.2 YTA110 Effect of Ambient Temperature'.
Add Stainless steel housing.
Change Item 4.

Change referred standard.
Add Notes for Fieldbus type, change EMC standard.
Add codes and notes for Fieldbus type.
EX-B02E superseded to EX-B03E.
4th to 5th edition (Adding Fieldbus related parts).

Add “■ For Safety Using.”
Add descriptions based on ATEX directive.
Add Optional code KU2.
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)
1C50B1-02E 7th to CMPL 01C50B01-02E 8th.

i

IM 01C50B01-01E

Edition Date Page Revised Item

9th April 2003 2-1

4-1

7-5

7-7

CMPL

10th Dec. 2004 —

Contents

1-2

1-3

2-6

3-1

6-2

7-5

CMPL

11th Sep. 2006 Cover

Contents

2-3, 2-4
2-5, 2-6
2-8, 2-9

2-10

2-11

6-6

7-1

7-3

7-5

7-6, 7-7

12th Nov. 2007 2-6, 7-6

2-11, 7-7

7-5

CMPL

13th Dec. 2009 2-6

2-11
2-12

7-6

7-7

CMPL

14th April 2013 2-1

2-5 to 2-8

2-12

7-2

7-5

7-7

CMPL

7.2

7.4

CMPL

Change Title of Flameproof (JIS → TIIS)

1.

1.

2.7.2

3.1

6.3

7.3

CMPL

2.

2.9

6.5

7.1

7.1

7.3

7.3

2.7.2

2.7.6

7.3

CMPL

2.7.2

2.7.6

2.8

7.3

7.3

CMPL

2.1

2.7.2

2.7.5

7.1

7.2

7.3

7.4

CMPL

Add Vertical pipe mounting bracket.
Add Vertical pipe mounting bracket.
Add mounting bracket code D.
Change Dimensions.
01C50B01-02E 8th to 9th
Add Part No.
It

em Part No.
27 F9284NZ
28 F9165QB

29 F9616NU
30 Y9600SU
31 Y9601BU

Add ‘ATEX Documentation.’
Add Attention on Maintenance.
Add ATEX Documentation.
Correct errors.
Add Notes for Lock screw.
Add Description about SAA to CAUTION.
Add C2, C3 Options.
9th to 10th edition.
Delete Part Number of Name Plate.
Add Note for Lock screw.
Add Ports Number of CPU Assembly for /KS25.

Change Style Code
Add 2.9 Low Voltage Directive

Add Certicate Number and Applicable Standard for Explosion
Protected Types.

Add 2.9 Low Voltage Directive.
Add Error code.
Add Stability Specications.
Add Note for YTA110 Ambient Temperature Effect.
Add Optional Code CA.
Add Certicate Number and Applicable Standard for Explosion
Protected Types.

Change Applicable standards and add Dust Ignition Proof for KU2.
Add IECEx Certication.
Add Option PR.
Add setting upon shipment for CPU Assembly.

Change marking code for ATEX Type of Protection “n”.
Add IECEx intrinsic safety “ia” and “ic”.
Revise EMC conformity standards.
Change marking code for ATEX Type of Protection “n”.
Delete option code /SU1 and /SF2. Add /SU2.
Add Table 1-2.

Update nameplate
Change applicable standards, electrical data, and nameplates.
Change applicable standards and electrical data.
Add IP66 and material cross reference table.
Add mounting bracket code J and K.
Add option code /HC and /N4.
Change dimensions for cover.

01C50B01-02E 13th to 14th

Change Part No.
Item 12, F9167DA to F9167DB and F9167DC

ii

IM 01C50B01-01E