Omega TXUN-FM, TXUN-ST Owner's manual

TXUN-ST/FM

2 Wire Programmable Transmitter

TM

User’s Guide

e-mail: [email protected]

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FM

APPROVED

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves

the right to alter specifications without notice.

omega.com [email protected]

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U.S.A. Omega Engineering, Inc.

Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

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e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

3

5223 Converter

Table of

Contents

Table of Contents

Section ........................................................................ Page

Section 1 Warning .......................................................................................... 4

Section 2 Application ................................................................................. 5-6

Section 3 Electrical Specifications ........................................................... 7-9

Section 4 Connections ................................................................................. 10

Section 5 Block Diagram ............................................................................. 11

Section 6 Programming ............................................................................... 12

Section 7 Mechanical Specifications ........................................................ 13

Section 8 Appendix ...................................................................................... 14

Section 9 ATEX Installation Drawing ...................................................... 15

Section 10 ATEX Drawing TXUN-FM ........................................................ 16

Section 11 IECEx Installation Drawing ................................................ 17-18

Section 12 TXUN-STQI01 ....................................................................... 19-20

Section 13 FM Installation Drawing .................................................... 21-22

Section 14 CSA Installation Drawing ......................................................... 23

Section 15 INMETRO .............................................................................. 24-26

Warning

4

1

Section 1 - 2 Wire Programmable Transmitter TXUN-ST/FM

• RTD, TC, Ohm, or mV input

• Extremely high measurement accuracy

• 1.5 kVAC galvanic isolation

• Programmable sensor error value

• For DIN form B sensor head mounting

• TXUN-FM is the FM approval version of TXUN-ST

Application

• Linearised temperature measurement with Pt100...Pt1000, Ni100...Ni1000, or TC sensor.

• Conversion of linear resistance variation to a standard analogue current signal, for instance from valves or Ohmic

level sensors.

• Amplification of a bipolar mV signal to a standard 4...20 mA current signal.

Technical characteristics

• Within a few seconds the user can program TXUN-ST to measure temperatures within all ranges defined by the norms.

• The RTD and resistance inputs have cable compensation for 2-, 3- and 4-wire connection.

• Continuous check of vital stored data for safety reasons.

Mounting/installation

For DIN form B sensor head mounting. In non-hazardous areas the TXUN-ST can be mounted on a DIN rail.

5

Applications

2

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

V

+

mA

V+

mA

V+

mA

V+

mA

+

-

+

-

RTD to 4...20 mA

TC to 4...20 mA

Resistance to 4...20 mA

mV to 4...20 mA

2-wire installation

in control room

2-wire installation

in control room

2-wire installation

in control room

2-wire installation

in control room

Section - Applications

6

Electrical specifications

Specifications range:

-40°C to +85°C

Common specifications:

Supply voltage, DC

Standard .......................................... 7.2...35 VDC

CSA, FM, ATEX, IECEx & INMETRO.............. 7.2...30 VDC

Internal power dissipation

Standard .......................................... 25 mW...0.8 W

CSA, FM, ATEX, IECEx & INMETRO.............. 25 mW...0.7 W

Voltage drop .................................... 7.2 VDC

Isolation voltage, test / operation 1.5 kVAC / 50 VAC

Warm-up time ................................. 5 min.

Communications interface ............ Loop Link

Signal / noise ratio ........................ Min. 60 dB

Response time (programmable) ... 1...60 s

EEprom error check ....................... < 3.5 s

Signal dynamics, input .................. 20 bit

Signal dynamics, output ............... 16 bit

Calibration temperature ................ 20...28°C

Order: TXUN-ST

Type Version

Ambient

temperature

Galvanic

isolation

TXUN-ST Standard : A

CSA, FM, ATEX,

IECEx & INMETRO : D

-40°C...+85°C : 3 1500 VAC : B

General values

Input type

Absolute

accuracy

Temperature

coefficient

All ≤ ±0.05% of span ≤ ±0.01% of span / °C

Accuracy, the greater of general and basic values:

Basic values

Input type

Basic

accuracy

Temperature

coefficient

RTD ≤ ±0.2°C ≤ ±0.01°C/°C

Lin. R ≤ ±0.1 Ω ≤ ±10 mΩ / °C

Volt ≤ ±10 µV ≤ ±1 µV / °C

TC type:

E, J, K, L, N, T, U

≤ ±1°C

≤ ±0.05°C / °C

TC type: B, R, S,

W3, W5, LR

≤ ±2°C

≤ ±0.2°C / °C

Applications

2

7

Inputs and Specs

EMC immunity influence ........................ < ±0.5% of span

Extended EMC immunity:

NAMUR NE 21, A criterion, burst ......... < ±1% of span

Effect of supply voltage variation : < 0.005% of span/VDC

Vibration .......................................... IEC 60068-2-6 : 2007

2...25 Hz ................................... ±1.6 mm

25...100 Hz ............................... ±4 g

Max. wire size ................................. 1 x 1.5 mm2 stranded wire

Screw terminal torque ................... 0.4 Nm

Humidity ......................................... < 95% RH (non-cond.)

Dimensions ..................................... Ø 44 x 20.2 mm

Protection degree (enclosure / terminal): IP68/IP00

Weight .............................................. 50 g

Electrical specifications, input:

RTD and linear resistance input:

Max. offset ....................................... 50% of selec. max. value

Cable resistance per wire (max.) ..5Ω

Sensor current ................................. nom. 0.2 mA

Effect of sensor cable resistance

(3- / 4-wire) ..................................... <0.002Ω/Ω

Sensor error detection ................... Yes

RTD

type

Min.

value

Max.

value

Min.

span

Standard

Pt100

Ni100

Lin. R

-200°C

-60°C

0 Ω

+850°C

+250°C

5000 Ω

25°C

30 Ω

IEC 60751

DIN 43760

-----

Electrical Specifications

3

8

Section 3.1 - TC Input

Max. offset ....................................... 50% of selec. max. value

Cold junction compensation ......... < ±1.0°C

Sensor error detection .................... Yes

Sensor error current:

When detecting ........................... Nom. 33 mA

Else ................................................ 0 mA

Voltage input:

Measurement range ....................... -12...800 mV

Min. span ......................................... 5 mV

Max. offset ....................................... 50% of selec. max. value

Input resistance .............................. 10 MΩ

Output:

Current output:

Signal range..................................... 4...20 mA

Min. signal range ............................ 16 mA

Updating time ................................. 440 ms

Output signal at EEprom error .... ≤ 3.5 mA

Load resistance ............................... ≤ (V

supply

- 7.2) / 0.023 [Ω]

Load stability .................................. < ±0.01% of span / 100 Ω

Sensor error detection:

Programmable ................................ 3.5...23 mA

Namur NE43 Upscale .................... 23 mA

Namur NE43 Downscale .............. 3.5 mA

Of span = Of the presently selected range

Type

Min.

temperature

Max.

temperature

Min.

span

Standard

B

E

J

K

L

N

R

S

T

U

W3

W5

LR

+400°C

-100°C

-180°C

-100°C

-180°C

-50°C

-200°C

0°C

-200°C

+1820°C

+1000°C

+1200°C

+1372°C

+900°C

+1300°C

+1760°C

+400°C

+600°C

+2300°C

+800°C

100°C

50°C

100°C

50°C

100°C

50°C

IEC584

DIN 43710

IEC584

DIN 43710

ASTM E988-90

GOST 3044-84

TC input:

Electrical specifications

3

9

Approvals:

EMC ................................................. 2014/30/EU

CCOE ............................................... P337392/1

RoHS ................................................ 2011/65/EU

EAC .................................................. TR-CU 020/2011

Marine approval:

DNV-GL, Ships & Offshore .......... Standard for Certification

No. 2.4

Ex / I.S.:

ATEX 2014/34/EU

TXUN-ST ...................................... KEMA 10ATEX0002 X

TXUN-FM..................................... KEMA 06ATEX0062 X

FM certificate .................................. FM17US0013X

CSA certificate ................................ 1125003

IECEx ............................................... DEK 13.0035 X

INMETRO ....................................... DEKRA 16.0013 X

CCOE ............................................... P337392/2

EAC Ex TR-CU 012/2011 .............. RU C-DK.GB08.V.00410

Electrical Specifications

3

10

Connections

12

mA

-

+

3

4

65 3

4

65 3

4

65 3

4

65

+

-

3

4

65

+

-

3

4

65

+

-

3

4

65 3

4

65

3

4

65

Output :

2-wire installation

Input:

Resistance, 2-wire Resistance, 3-wire

Resistance, 4-wire

RTD, 2-wire RTD, 3-wire RTD, 4-wire

TC, internal CJC

TC, external CJC mV

Section 4 - Connections

11

Block Diagram

5

0...16

mA

4

3

2

1

5

6

4

3

2

+

-

+

-

mV

mA

MU X

4 mA

PGA

D / A

A / D

CPU

EEPROM

Com

Indgang gnd.

Forsyning -

4...20 mA

Forsynin g +

7,2...3 5 VDC

TC

Ext.

CJC

mV

RTD,

lin. R

- tråd

Int.

CJC

Section 5 - Block Diagram

TXUN-ST/FM

12

Programming

6

Section 6 - Programming

• Loop Link is a communications interface that is needed for programming TXUN-ST/FM.

• For programming please refer to the drawing below and the help functions in OMset.

• Loop link is not approved for communication with modules installed in harzardous (Ex) areas.

5331

1

2

*

Lo op

Link

F

i

l

e

P

r

o

d

u

c

t

I

n

p

u

t

O

u

t

p

u

t

C

o

m

u

n

i

c

at

i

o

n

L

a

n

g

u

ag

e

O

p

t

i

o

n

0

8

:

3

0

:

0

D

at

e

:

2

0

4

-

8

-

1

0

4

3

2

0

1

5

9

4

A

n

al

o

g

i

n

p

u

t

A

n

al

o

g

o

u

t

p

u

t

S

e

r

i

a

l

n

o

:

I

n

p

u

t

yp

e

:

O

u

t

p

u

t

y

p

e

:

4

-

2

0

m

A

U

p

s

c

al

e

S

e

n

s

o

r

e

r

o

r

:

P

t

1

0

D

I

N

/

I

E

C

0

.

0

-

5

0

.

0

C

3

-

w

i

r

e

1

.

0

s

e

c

-

I

n

p

u

t

r

an

g

e

:

C

o

n

e

ct

i

o

n

:

C

o

l

d

j

u

n

c

t

i

o

n

c

o

m

p

:

R

e

s

p

o

n

se

t

i

m

e

:

T

ag

n

o

:

Disconnec t

+Vsuppl y

* Connected

only for

on-line programming

Black

Red

Yellow

Green

Input

Receiving

Stikfor-

bindelse

TXUN-ST/FM

Equipment

TXUN-KIT

TXUN-ST/FM

Omega Engineering

13

Section 7 - Mechanical Specifications

Mechanical Specifications

7

20.2 mm

+

-

+

-

ø 6

33 mm

ø 44

Mechanical specifications

Mounting of sensor wires

Wires must be mounted between the

metal plates.

Appendix

8

14

APPENDIX

ATEX INSTALLATION DRAWING - TXUN-ST

ATEX INSTALLATION DRAWING - TXUN-FM

IECEX INSTALLATION DRAWING - TXUN-ST

IECEX INSTALLATION DRAWING - TXUN-FM

FM INSTALLATION DRAWING - TXUN-FM

CSA INSTALLATION DRAWING - TXUN-FM

INMETRO INSTRUÇÕES DE SEGURANÇA - TXUN-ST

INMETRO INSTRUÇÕES DE SEGURANÇA - TXUN-FM

ATEX Installation Drawing TXUN-ST

9

15

5331QA02

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-08-07

Version Revision

V2R0

:egaP

1/1

ATEX Installation drawing

For safe installation of TXUN-ST 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 10ATEX 0002 X

Marking

Standards EN 60079-0 : 2012, EN 60079-11 : 2012, EN 60079-15 : 2010

Special conditions for safe use.

For type of protection Ex nA, the transmitter shall be mounted in a metal enclosure providing a

degree of protection of at least IP54 according to EN60529.

For use in the presence of combustible dusts the transmitter shall be mounted in an enclosure

providing a

degree of protection of at least IP6X in accordance with EN60529, the surface

temperature of the outer enclosure is 20 K above the ambient temperature.

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

20 K above the ambient temperature.

T4: -40 ≤ Ta ≤ 85ºC

T6: -40 ≤ Ta ≤ 60ºC

II 3 G Ex nA [ic] IIC T4 … T6 Gc

II 3 G Ex ic IIC T4…T6 Gc

II 3 D Ex ic IIIC Dc

Terminal: 3,4,5,6

Ex nA [ic]

Uo: 9.6 V

Io: 25 mA

Po: 60 mW

Lo: 33 mH

Co: 2.4 μF

Terminal: 1,2

Ex nA

Umax ≤ 35 VDC

Terminal: 1,2

Ex ic

Ui = 35 VDC

Ii = 110 mA

Li = 10 μH

Ci = 1.0 nF

Section 9 - ATEX Installation Drawing TXUN-ST

TXUN-ST

ATEX Drawing TXUN-FM

10

Section 10 - ATEX Drawing TXUN-FM

16

5331QA01

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-08-07

Version Revision

V2R0

:egaP

1/2

ATEX Installation drawing

For safe installation of TXUN-FM 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 0062 X

Marking

Standards EN 60079-0 : 2012, EN 60079-11 : 2012, EN 60079-26 : 2007,

EN 60079-15 :2010

Non Hazardous Area

Hazardous area

Zone 0, 1, 2, 20, 21, 22

II 1 G Ex ia IIC T4...T6 Ga

II 1 D Ex ia IIIC Da

I M1 Ex ia I Ma

1

2

6

5

4

3

+

-

Barrier

TXUN-FM

Terminal: 3,4,5,6

Uo: 9.6 VDC

Io: 25 mA

Po: 60 mW

Lo: 33 mH

Co: 2.4μF

Terminal: 1,2

Ui: 30 VDC

Ii: 120 mA

Pi: 0.84 W

Li: 10 μH

Ci: 1.0 nF

T4: -40 ≤ Ta ≤ 85ºC

T6: -40 ≤ Ta ≤ 60ºC

17

IECEx Installation Drawing TXUN-ST/FM

11

5331QA01

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-08-07

Version Revision

V2R0

Page:

2/2

Installation notes.

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 during 1

minute.

In a potentially explosive gas atmosphere, the transmitter shall be mounted in an enclosure in

order to provide a degree of protection of at least IP20 according to EN60529.

If the transmitter is installed in an explosive atmosphere requiring the use of equipment of

category 1 G, 1 M or 2 M, and if the enclosure is made of aluminum, if must be installed such,

that ignition sources due to impact and friction sparks are excluded.

if the enclosure is made of non-metallic materials, electrostatic charging shall be avoided.

For installation in a potentially explosive dust atmosphere, the following instructions apply:

The transmitter shall be mounted in a metal enclosure form B according to DIN43729 that is

providing a degree of protection of at least IP6X according to EN60529, that is suitable for the

application and correctly installed.

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 surface temperature of the enclosure is equal to the ambient temperature plus 20 K, for a

dust layer with a thickness up to 5 mm

Section 11 - IECEx Installation Drawing TXUN-ST/FM

18

IECEx Installation Drawing TXUN-ST/FM

11

5331QI02

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-06-03

Version Revision

V1R0

:egaP

1/1

IECEx Installation drawing

For safe installation of TXUN-ST 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.

Certificate IECEx DEK 13.0035X

Marking

Standards IEC 60079-0 : 2011, IEC 60079-11 : 2011, IEC 60079-15 : 2010

Installation note:

For installation in a potentialy explosive gas atmosphere, the following instructions apply:

For nA installation the transmitter must be installed in an metal enclosure, e.g. a form B

enclosure providing a degree of protection of at least IP54 according to IEC60529 or in an

enclosure with type of protection Ex n or Ex e.

For ic ins

tallation the transmitter must be installed in enclosure providing a degree of

protection of at least IP20 according to IEC60529 and that is suitable for the application.

Cable entry devices and blanking elements shall fulfill the same requirements

For an ambient temperature ≥ 60ºC, heat resistant cables shall be used with a rating of at

least 20 K above the ambient temperature.

For installation in a potentially explosive dust atmposphere, the following instructions apply:

The surface temperature of the enclosure is equal to the ambient temperature plus 20 K, for a

dust layer with a thickness up to 5 mm.

The transmitter must be mounted in a enclosure according to DIN 43729 that provides a

degree of protection of at least IP6X according to IEC60529, and that is suitable for the

application. Cable entry devices

and blanking elements shall fulfill the same requirements.

T4: -40 ≤ Ta ≤ 85ºC

T6: -40 ≤ Ta ≤ 60ºC

Ex nA [ic] IIC T4..T6 Gc

Ex ic IIC T4..T6 Gc

Ex ic IIIC Dc

Terminal: 3,4,5,6

Uo: 9.6 V

Io: 25 mA

Po: 60 mW

Lo: 33 mH

Co: 2.4 μF

Terminal: 1,2

Ex nA

Umax =35 VDC

Terminal: 1,2

Ex ic

Ui = 35 VDC

Ii = 110mA

Li = 10 μH

Ci = 1.0 nF

Section 11 - IECEx Installation Drawing TXUN-ST/FM

Drawing QI01

12

19

5331QI01

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-06-03

Version Revision

V1R0

:egaP0

1/2

IECEx Installation drawing

For safe installation of TXUN-FM 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.

.

Certificate IECEx DEK 13.0035X

Marking

Standards IEC 60079-0 : 2011, IEC 60079-11 : 2011, IEC 60079-26:2006

Non Hazardous Area

Hazardous area

Zone 0, 1, 2, 20, 21, 22, M1

Ex ia IIC T4…T6 Ga

Ex ia IIIC Da

Ex ia I Ma

1

2

6

5

4

3

+

-

Barrier

TXUN-FM

Terminal: 3,4,5,6

Uo: 9.6 VDC

Io: 25 mA

Po: 60 mW

Lo: 33 mH

Co: 2.4 μF

Terminal: 1,2

Ui: 30 VDC

Ii: 120 mA

Pi: 0.84 W

Li: 10 μH

Ci: 1.0 nF

T4: -40 ≤ Ta ≤ 85ºC

T5: -40 ≤ Ta ≤ 60ºC

T6: -40 ≤ Ta ≤ 45ºC

Section 12 - QI01

QI01

12

20

5331QI01

LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM

Revision date:

2013-06-03

Version Revision

V1R0

0Page:

2/2

Installation notes.

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 during 1

minute.

In a potentially explosive gas atmosphere, the transmitter shall be mounted in a metal form B

enclosure in order to provide a degree of protection of at least IP20 according to IEC60529. If

however the environment requires a higher degree of protection, this shall be taken into

account.

If the transmitter is installed in an explosive atmosphere requiring the use of equipment

protection level Ga, Ma and Mb, and if the enclosure is made of aluminum, it must be installed

such, that ignition sources due to impact and friction sparks are excluded.

For installation in a potentially explosive dust atmosphere, the following instructions apply:

For explosive dust atmospheres, the surface temperature of the outer enclosure is 20 K above

the ambient temperature.

The transmitter shall be mounted in a metal enclosure form B according to DIN43729 that is

providing a degree of protection of at least IP6X according to IEC60529, that is suitable for the

application and correctly installed.

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.

Section 12 - QI01

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