YTA Series YTA50 Temperature Transmitter Instruction Manual

June 3, 2024
YTA Series

YTA Series YTA50 Temperature Transmitter

SAFETY INSTRUCTIONS

Ex installation:
For a safe installation of YTA50 in hazardous area the following must be observed.
The module must only be installed by qualified personnel who are familiar with the national and international laws, directives and standards that apply to this area.
Year of manufacture can be taken from the first two digits in the serial number.
The sensor circuit is not infallibly galvanically isolated from the input circuit.
However, the galvanic isolation between the circuits is capable of withstanding a test voltage of 500 Vac during 1 minute.
The transmitter must be mounted in an enclosure in order to provide a degree of ingress protection of at least IP20.
In explosive atmospheres caused by air/dust mixtures:
For Ex/I.S. data, see chapter 7. Approvals Options.
Special Conditions for Safe Use:
If the enclosure in which the transmitter is mounted is made of aluminum and installed in Zone 0, 1 or Zone 20, 21 or 22 it shall not contain by weight more than 6% in total of magnesium and titanium.
The additional enclosure of the apparatus shall be designed and/or installed in such a way that, even in the event of rare incidents, ignition sources due to impact and friction sparks are excluded.

The YTA50 is a head mount type of temperature transmitter that accepts thermocouple or RTD input and converts it to a 4 to 20 mA DC signal for transmission. The YTA50 conforms to the standard DIN form B head mounting. It is imperative that users observe the instructions in this manual to ensure the protection and safety of operators.

Control of Pollution Caused by the Product

This is an explanation for the product based on “Control of Pollution caused by Electronic Information Products” in the People’s Republic of China.

Model and Suffix Codes

Model Suffix code Descriptions
YTA50 Temperature Transmitter (Head Mount Type)
Output Signal -A 4 to 20 mA DC
Optional Specifications /KS2 ATEX intrinsically safe approval
/DS2 FM intrinsically safe/Nonincendive and ATEX intrinsically safe

approval combination

Warranty

The warranty period of the instrument is as of condition shown when purchasing.
Any trouble arising during the warranty period shall be replaced at free of charge.
The following problems or troubles shall not be eligible of charge-exempt repair.

  • Caused by improper usage or storage of the customer which exceeds the specification requirements.
  • Caused by mishandling or modification.
  • Caused by fire, earthquake or other acts of God that are not directly a result of problems of the instrument.

Handling Precautions

  1. This manual and the identification tag attached on packing box are essential
    parts of the product; keep them in a safe place for future reference.

  2. Read this manual thoroughly and carefully before handling the instruments.
    Observe the instructions.

  3. This product is designed to be used by a person with specialized knowledge.

  4. Store the product in location that meets the following requirements.
    • No exposure to rain or water
    • No major mechanical vibration or shock
    • Humidity and Temperature limitations
    • Ordinary conditions (25°C, 65%) is preferable.
    Otherwise, as of specified in “Standard Specifications.”

  5. Avoid corrosive atmosphere for storage and installation.

  6. For safe installation of the transmitter in hazardous area, the following must be
    observed. The module must only be installed by qualified personnel’s who are familiar with the national and international laws, directives, and standards that apply to this area.

  7. Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by the customer.

  8. Product Disposal
    The instrument should be disposed of in accordance with local and national legislation/regulations.

  9. Authorized Representative in EEA
    In relation to the CE Marking, The authorized representative for this product in the EEA (European Economic Area) is:
    Yokogawa Europe B.V. Euroway 2, 3825 HD Amersfoort, The Netherlands

Printed Manual
Document No. Title
IM 01C50C01-01EN YTA50 Temperature Transmitter
Electronic Manual
Document No. Title
IM 01C50C01-01EN YTA50 Temperature Transmitter
General Specifications
Document No. Title
GS 01C50C01-00EN YTA50 Temperature Transmitter

Standard Specifications

  • Accuracy
    See table below

  • Cold Junction Compensation Accuracy (For T/C only)
    ±1°C (±1.8°F)

  • Ambient Temperature Effects
    See table below

Type

| Standard| Input ranges °C| Minimum span °C| **Accuracy * 1**|

Temp. effects /10 °C Change *** 1**

---|---|---|---|---|---
T/C| B| IEC60584| 400 to 1820| 200| ±0.1% or ±2.0°C| ±0.1% or ±2.0°C
E| -100 to 1000| 50| ±0.1% or ±1.0°C| ±0.1% or ±0.5°C
J| -100 to 1200| 50
K| -180 to 1372| 50
N| -180 to 1300| 100
R| -50 to 1760| 200| ±0.1% or ±2.0°C| ±0.1% or ±2.0°C
S| -50 to 1760| 200
T| -200 to 400| 50| ±0.1% or ±1.0°C| ±0.1% or ±0.5°C
L| DIN43710| -100 to 900| 50
U| -200 to 600| 75
W3| ASTM E988-90| 0 to 2300| 200| ±0.1% or ±2.0°C| ±0.1% or ±2.0°C
W5| 0 to 2300| 200
RTD| Pt100| IEC60751| -200 to 850| 25| ±0.1% or ±0.2°C| ±0.1% or ±0.1°C
Ni100| DIN43760| -60 to 250| 25
DC Voltage [mV]| -10 to 800 mV| 5mV| ±0.1% or ±0.01mV| ±0.1% or ±10µV
Resistance [Ω]| 0 to 5000Ω| 30Ω| ±0.1% or ±0.1Ω| ±0.1% or ±0.1Ω

*1: The value whichever is greater. value in % indicates the % of span.

  • Power Supply Effects
    ±0.005% of FS per Volt

  • EMC Conformity
    EN 61326-1 Class A, Table2
    EN 61326-2-3
    Immunity influence during the test:
    Output shift is specified within ±1% of full span.

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

EU RoHS Directive

Applicable standard: EN IEC 63000

  • Applicable production sites are shown below.
    The condition of the RoHS compliant production sites are as follows:
    Singapore, China The production sites can be confirmed by the serial number shown in the frame of “NO.” in the name plate of the product.
    Serial numbers (9 letters): AAnnnnnnn
    AA: Identification code of production site
    Singapore: Use “C2” or “C0” China: Use “S5”

  • Serial Number Label (affixed on the bottom side)

  • Maximum Zero Offset
    ±50% of the maximum temperature

  • Input Signal Source Resistance (for T/Cs input)
    10 MΩ, or 3 kΩ at power-off

  • Input Lead Wire Resistance (for RTDs input)
    5 Ω per wire or lower

  • Burnout
    High (21.6 mA or more) or Low (3.6 mA or less)

  • Output
    Two wire 4 to 20 mA DC

  • Response Time
    1 to 60 sec (as specified upon shipment

  • Ambient Temperature Limits (Option code may affect limit.)
    Response Time
    1 to 60 sec (as specified upon shipment)

  • Ambient Temperature Limits (Option code may affect limit.)
    –40 to 85°C (–40 to 185°F)

  • Ambient Humidity Limits
    5 to 90% RH at 40°C (104°F)

  • Supply Voltage
    7 to 35 V DC
    7 to 30 V DC for Intrinsically safe type

  • Load Resistance (Limitation)
    0 to (E–7)/0.023 [Ω], where E is power supply voltage. Ex. 739 Ω max. @ 24 V DC

  • Isolation
    Input/output isolated to 1500 V AC.

  • Mounting
    DIN form B head mounting

  • Terminals
    M3 screws

  • Weight
    50 g (0.11 lb)

Block Diagram

Wiring

See wiring diagram. For output signal, use twisted pair or cables with performance equivalent to 600V vinyl insulate cable. For wiring in high or low temperature, use a wire or cable suitable for such temperature. Use cables and wires which meet atmospheric conditions. Take necessary measure to avoid corrosion or damage of cables and wires.

IMPORTANT
When mounting on a sensor head, do not overtighten the screws.

Dimensions

Wiring Diagram

Approval Options

ATEX Intrinsically safe model (/KS2, /DS2)

ATEX Installation drawing YTA50QA01

For safe installation, the following must be observed. The module shall only be installed by qualified personnel who are familiar with the national and international laws, directives and standards that apply to this area.
Year of manufacture can be taken from the first two digits in the serial number.

ATEX Certificate KEMA 06ATEX 0191X
Marking II 1 G Ex ia IIC T6 …T4 Ga II 2 D Ex ia IIIC Db
Standards EN IEC 60079-0: 2018, EN 60079-11: 2012

Hazardous area
Zone 0, 1, 2, 21, 22

Temperature Class Ambient temperature range
Pi: 0.84W Pi: 0.75W
T6 -40 °C to +47 °C
T5 -40 °C to +62 °C
T4 -40 °C to +85 °C
Installation notes.

If the enclosure is made of non-metallic plastic materials, electrostatic charges on the transmitter enclosure shall be avoided.

If the transmitter is installed in an explosive atmosphere requiring the use of equipment protection level Ga, the transmitter shall be mounted in a separately certified enclosure that provides a degree of protection of at least IP20 according to EN 60529, and that is suitable for the application and correctly installed.

If the transmitter is installed in an explosive atmosphere requiring the use of equipment protection level Ga, and if the enclosure is made of aluminum, it must be installed such, that ignition sources due to impact and friction sparks are excluded.

If the transmitter is installed in an explosive atmosphere requiring the use of equipment protection level Db, the transmitter shall be mounted in a separately certified enclosure that provides a degree of protection of at least IP5X according to EN IEC 60079-0, and that is suitable for the application and correctly installed. The surface temperature of the outer enclosure is +20 K above the ambient temperature, determined without a dust layer.
Ambient temperature range: -40 °C to +85 °C

Cable entries and blanking elements shall be used that are suitable for the application and correctly installed.

For an ambient temperature ≥ 60ºC, heat resistant cables shall be used with a rating of at least 20 K above the ambient temperature.

The sensor circuit is not infallibly galvanic isolated from the input circuit. However, the galvanic isolation between the circuits is capable of withstanding a test voltage of 500Vac for 1 minute.

Name Plate

[/KS2]

[/DS2]

FM Intrinsically safe/Nonincendive model (/DS2)

Applicable Standard: FM 3600, FM 3610, FM 3611, FM 3810 Installation diagram

Revision Record
  • Manual No. : IM 01C50C01-01EN
  • Title : YTA50 Temperature Transmitter
Edition Date Page Revised item
1st 1998 New Publication.
10th July 2021 P.1 P.2 Changed EU RoHS Directive. Deleted ATEX

Documentation. Revised ATEX Scheme.
Revised Name Plate.

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