Endress+Hauser MT188 Specifications

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Technical Information TI 077R/09/en No.: 510 01792

Temperature head transmitter

iTEMP TC TMT 188

Universal head transmitter for thermocouples (TC) for installation in a sensor head Form B

Application areas

• Fixed adjusted temperature head transmitter for converting TC input signals into a 4 to 20 mA analogue output signal

• Input: Thermocouple (TC)

Features and benefits

• Fixed adjusted measurement range for thermocouples (TC)

• 2 wire technology, 4to20mAanalogueoutput

• High accuracy in total ambient temperature range

• Fault signal on sensor break or short circuit, presettable to NAMUR NE 43

• EMC to NAMUR NE 21, CE

• UL recognized component to UL

3111-1

• GL ship building approval

• Ex-Certification

- ATEX Ex ia and dust zone 22 in

compliance with EN 50281-1

-FMIS

-CSAIS

• Galvanic isolation

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Operation and system construction

Measurement principle

Measurement system

Electronic measurement and conversion of input signals in industrial temperature measurement.

The iTEMP TC TMT 188 temperature head transmitter is a two wire transmitter with an analogue output. It has measurement input for thermocouples (TC).

Input

Output

Thermocouples (TC)

Type Measurement range

B (PtRh30-PtRh6) C(W5Re-W26Re) D(W3Re-W25Re)

[3] [3]

E (NiCr-CuNi) J (Fe-CuNi) K (NiCr-Ni) L (Fe-CuNi)

[2]

N (NiCrSi-NiSi) R(PtRh13-Pt) S (PtRh10-Pt) T(Cu-CuNi) U(Cu-CuNi) MoRe5-MoRe41

accord. to IEC 584 Part 1

[2]

[1]

0to+1820°C 32to3308°F 0to+2320°C 32to4208°F 0to+2495°C 32to4523°F

-200 to +915 °C -328 to 1679 °F

-200to+1200°C -328to2192°F

-200to+1372°C -328to2501°F

-200 to + 900 °C -328 to 1652 °F

-270to+1300°C -454to2372°F 0to+1768°C 32to3214°F 0to+1768°C 32to3214°F

-200 to + 400 °C -328 to 752 °F

-200 to + 600 °C -328 to 1112 °F 0to+2000°C 32to3632°F

Cold junction internal (Pt100) Cold junction

accuracy

±1K

Sensor current 30 mA

Output (analogue)

Output signal 4 to 20 mA Transmission as temperature linear Max. load (V

Input current required

Current limit

≤ 3.5 mA

≤ 25 mA

Switch on delay 4 s Reply time 1 s

power supply

(during power up Ia=3.8mA)

- 8 V) / 0.025 A

min. measurem. range

500 K (900 °F) 500 K (900 °F) 500 K (900 °F)

50 K (90 °F) 50 K (90 °F) 50 K (90 °F) 50 K (90 °F)

50 K (90 °F) 500 K (900 °F) 500 K (900 °F)

50 K (90 °F)

50 K (90 °F) 500 K (900 °F)

Accuracy

Failure signal (fault monitoring)

Measurement range undercut

Exceeding measurement range

Sensor breakage; Sensor short circuit

Linear drop to 3.8 mA

Linear rise to 20.5 mA

≥ 21.0 mA

Electrical connection

Power supply Ub= 8 to 35 V, polarity protected Galvanic isolation

(In/out)

Allowable ripple

Û = 3.75 kV AC

≤ 5VatUb≥ 13 V, f

max.

=1kHz

Reference conditions Calibration temperature 23 °C ± 5 K

Thermocouple (TC)

Type Measurement accuracy

K, J, T, E, L, U N, C, D S, B, R MoRe5-MoRe41

Influence of the internal reference junction

typ. 0.5 K typ. 1.0 K typ. 2.0 K

Pt100 DIN IEC 751 Cl. B

[1] no reference [2] according to DIN 43710 [3] according to ASTM E988

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Accuracy (continued)

Influence of power supply

Load influence

Temperature drift

Long term stability

≤ ±0.01%/V deviation from 24 V

≤ ±0.02%/100 Ω

[1]

Thermocouple (TC): T

=±(15ppm/K*max. meas. range + 50 ppm/K*preset meas. range)*∆ϑ

∆ϑ = Deviation of the ambient temperature according to reference condition.

≤ 0.1 K / Year

[2]

or ≤ 0.05% / Year

[2] [3]

Application conditions

Mechanical construction

Installation conditions

Installation angle No limit Installation area Connection head accord. to DIN 43 729 Form B; TAF 10 field housing

Ambient conditions

Ambient temperature -40 to +85 °C (for Ex-areas see Ex-certification) Storage temperature -40 to +100 °C Climatic class To EN 60 654-1, Class C Moisture condensation Allowable Ingress protection IP00 / IP66 installed Vibration protection 4g / 2 to 150 Hz according to IEC 60 068-2-6

EMC immunity

Dimensions

Interference immunity and interference emission according to EN 61 326-1 and NAMUR NE 21

∅5

∅7

∅44

Dimensions in mm

22.5

Certification

Weight approx. 40 g

Materials

Terminals Cable up to max. 1.75 mm

Housing: PC Potting: PUR

(secure screws)

Terminal connections

Power supply and current output SETUP socket

CE mark

Ex-certification

UL recognized UL recognized component to UL 3111-1 GL approval GL Germanische Lloyd ship building approval

The measurement system fulfils the requirements demanded by the EU regulations. Endress+Hauser acknowledges successful unit testing by adding the CE mark.

For further details on the available Ex versions (ATEX, CSA, FM, etc.), please contact your nearest sales organisation. All relevant data for hazardous areas can be found in separate Ex documentation. If required, please request copies from us or your E+H sales organisation.

[1] All data is related to a measurement end value (FSD) of 20 mA. [2] Accord. to reference conditions. [3] % is related to the adjusted measurement range (the value to be applied is the greater).

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How to order

iTEMP TC TMT 188 head transmitter

Head transmitter for temperature measurement, connection to thermocouples (TC), internal reference junction, 2-wire technology with 4 to 20 mA analogue output, In/Out galvanic isolation, failure mode according to NE 43, for mounting in Form B head to DIN 43729, UL recognized component, ship building approval GL.

Certification

A - Version for non Ex areas, UL recognized, ship building approval GL B - ATEX II 1G EEx ia IIC T4/T5/T6 C - FM IS, Class I, div. 1+2, Group A, B, C, D D - CSA IS, Class I, div. 1+2, Group A, B, C, D E - ATEX II 3G EEx nA IIC T4/T5/T6 F-ATEXII3D G - ATEX II 1G EEx ia IIC T6, II 3D H-ATEXII3GEExnAIICT6,II3D

Temperature sensor Measurement range

B - Typ B ( 0 °C ... +18 20 °C C - Typ C (0 °C ...+2320 °C min. 500 K) AB - (0 °C ...150 °C) D - Typ D (0 °C ...+2495 °C min. 500 K) AK - (0 °C ...200 °C) E - Typ E (-200 °C ...+915 °C min. 50 K) AC - (0 °C ...250 °C) J - Typ J (-200 °C ...+1200 °C min. 50 K) AL - (0 °C ...300 °C) K - Typ K (-200 °C ...+1372 °C min. 50 K) AD - (0 °C ...400 °C) L - Typ L (-200 °C ...+900 °C min. 50 K) AE - (0 °C ...600 °C) N - Typ N (-270 °C ...+1300 °C min. 50 K) AF - (0 °C ...900 °C) R - Typ R (0 °C ...+1768 °C min. 500 K) AG - (0 °C ...1000 °C) S - Typ S (0 °C ...+1768 °C min. 500 K) AH - (0 °C ...1200 °C) T - Typ T (-200 °C ...+400 °C min. 50 K) AI - (0 °C ...1400 °C) U - Typ U (-200 °C ...+600 °C min. 50 K) AJ - (0 °C ...1600 °C)

min. 500 K) AA - (0 °C ...100 °C)

JA - (-50 °C ...200 °C)

Further Documentation

Model

A - Standard model B - Works calibration certificate, 6 test points

TMT188-

⇐ Order-Code

Operation instructions KA 120R/09/a3 No. 510 03186

ATEX II 1G XA 004R/09/a3 No. 510 01908 ATEX II 3G XA 010R/09/a3 No. 510 03356 ATEX II 3D XA 026R/09/a3 No. 510 05563

System information SI 008R/09/en No. 510 01361

Export Division

Endress+Hauser GmbH + Co Instrument International P.O. Box 2222 D-79574 Weil am Rhein Germany

Tel. +49 7621 975-02 Tx 773926 Fax +49 7621 975-345 e-mail: [email protected]

Internet:

http://www.endress.com

TI 077R/09/en/12.02 Mat.-Nr. 510 01792 CV5