YOKOGAWA YTA70 User's Manual

User’s

YTA70

Manual

Temperature Transmitter

IM 01C50C03-01E

IM 01C50C03-01E 6th Edition

CONTENTS

SAFETY INSTRUCTIONS ....................................................................1

1. MODEL AND SUFFIX CODES ......................................................2

2. WARRANTY ................................................................................... 2

3. HANDLING PRECAUTIONS .........................................................3

4. STANDARD SPECIFICATIONS .....................................................3

5. BLOCK DIAGRAM.........................................................................5

6. WIRING ..........................................................................................5

7. SAFETY APPROVALS ..................................................................6

7.1 CENELEC ATEX(DEMKO) Intrinsically safe model ............. 6

7.2 FM Intrinsically safe model .................................................. 7

8. HART COMMUNICATION .............................................................8

8.1 Connection and Requirements ............................................ 8

8.2 Parameters .......................................................................... 9

◆ REVISION RECORD

FD No. IM 01C50C03 -01E 6th Edition: Feb. 2007 (YK)

IM 1C50T1-01E

SAFETY INSTRUCTIONS

Ex/I.S. installation:

• For correct use and installation the manufacturer’s manual must be fol-

lowed.

When programming the Transmitter by PC and communication interface

or a HART® terminal the intrinsically safe data shall be observed.

• The designation galvanic isolation between the transducer input and the

loop supply indicates signal isolation only. It shall not be interpreted as an

Intrinsically Safe galvanic isolation like an isolating barrier. Therefore

ordinary care in selecting barrier and grounding shall be considered.

• The apparatus must be installed in an enclosure with an Ingress Protec-

tion of at least IP 20.

• The terminals 1 and 2 of the equipment have to be electrically connected

to a linear barrier located in the non hazardous area.

• For Ex/I.S. data, see chapter 7. SAFETY APPROVALS.

IM 01C50C03-01E

The YTA70 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 YTA70 specifies HART communication protocol for re-

mote configuration.

It is imperative that usres observe the instructions in this manual to ensure

the protection and safety of operators.

1.MODEL AND SUFFIX CODES

Model Suffix code Descriptions YTA70

Output Signal

Optional Specifications

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

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

-E

/KS2

Temperature Transmitter

4 to 20mA DC with digital communication (HART protocol)

CENELEC ATEX intrinsically safe approval

EEx ia llC T1-6 Amb. Temperature T1-4: -40 to 85°C (-40 to 185°F), T5-6: -40 to 60°C (-40 to 140°F)

/DS2

CENELEC ATEX/FM intrinsically safe approval combination

CENELEC: EEx ia llC T1-6 FM: IS Class I, Div.1, Groups A, B, C & D

T01E.EPS

2.WARRANTY

The warranty period of the instrument is as of condition shown when pur-

chasing. 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.

IM 01C50C03-01E

3.HANDLING PRECAUTIONS

(1) Read this manual throughly and carefully before handling the instru-

ments. Observe the instructions.

(2) 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.”

(3) Avoid corrosive atmosphere for storage and installation.

(4) For safe installation of the transmitter in hazardous area, the

following must be observed. The module must only be installed by quali-

fied personnels who are familiar with the national and international laws,

directives, and standards that apply to this area.

(5) Yokogawa will not be liable for malfunctions or damage resulting from

any modification made to this instrument by the customer.

4.STANDARD SPECIFICATIONS

Accuracy (see table below)

Sensor

type

<T/C> B E J

N R S T L U W3

W5 <RTD>

Pt100

Ni100

DC Voltage

Resistance

Standard

IEC584

DIN43710

IEC751

ASTM

Input ranges

⬚C

400 to 1820

-100 to 1000

-100 to 1200

-180 to 1372

-180 to 1300

-50 to 1760

-200 to 400

-100 to 900

-200 to 600 0 to 2300 0 to 2300

-200 to 850

-60 to 250

-800 to 800 [mV]

0 to 7000 [Ω]

⬚F

752 to 3308

-148 to 1832

-148 to 2192

-292 to 2502

-292 to 2372

-58 to 3200

-328 to 752

-148 to 1652

-328 to 1112 32 to 4172 32 to 4172

-328 to 1562

-76 to 482

Minimum span

⬚C

200

50 50

50 100 200 200

75 200 200

2.5 [mV]

⬚F

360

90 90

90 180 360

360

90 135 360 360

18DIN43760

25 [Ω]

(value whichever is greater)

Accuracy

± 0.1% of span or ±1.0⬚C

± 0.1% of span or ±0.5⬚C

± 0.1% of span or ± 1.0⬚C

± 0.1% of span or ± 0.5⬚C

± 0.1% of span or ± 1.0⬚C

± 0.1% of span or ± 0.1⬚C

± 0.1% of span or ± 0.2⬚C

± 0.1% of span or ± 0.01mV

± 0.1% of span or ± 0.1Ω

T02E.EPS

IM 01C50C03-01E

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