Endress+Hauser MT80 Specifications

TI00153R/09/EN/05.18
71404737
2018-06-21

Technical Information

iTEMP TMT80

Universal temperature head transmitter for
resistance thermometers and thermocouples
PC-programmable

Application

• PC-programmable (PCP) temperature head transmitter for converting different
input signals to an analog, scalable 4 to 20 mA output signal

• For resistance thermometers (RTD) and thermocouples (TC)

• Device configuration via PC with configuration kit and ReadWin® 2000 PC
software

Your benefits

• 2-wire power supply, analog output4 to 20 mA

• Fault signal in the event of sensor break or sensor short circuit, adjustable as per
NAMUR NE43

• Meets EMC requirements as per NAMUR NE21

• Galvanic isolation 500 V (input/output)

• Adjustment of the application-specific measuring range

Function and system design

iTEMP TMT80

Measuring principle

Measuring system

Measured variable

Measuring range

Resistance thermometer (RTD)

as per standard

IEC 60751 (α = 0.00385)

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

The iTEMP® TMT80 temperature head transmitter is a loop-powered transmitter with analog output
and a measurement input for resistance thermometers in 2-, 3-, or 4-wire connection and
thermocouples. The device is set up using a configuration kit and ReadWin 2000 operating software,
which is free of charge.

Input

Temperature (temperature-linear transmission behavior)

The device provides different measuring ranges depending on the sensor connection and input
signals:

Designation Measuring range limits Min. span

Pt100
Pt1000

• Connection type: 2-, 3- or 4-wire connection

• With 2-wire circuit, compensation of wire resistance possible (0 to 20 Ω )

• Cable resistance: Sensor cable resistance up to max. 11 Ω per cable

• Sensor current: ≤ 0.6 mA

–200 to +850 °C (–328 to +1 562 °F)
–200 to +250 °C (–328 to +482 °F)

10 K (18 °F)

Thermocouples as per standard Designation Measuring range limits Min. span

IEC 60584, Part 1

Type B (PtRh30-PtRh6) (31)
Type K (NiCr-Ni) (36)
Type N (NiCrSi-NiSi) (37)
Type R (PtRh13-Pt) (38)
Type S (PtRh10-Pt) (39)

• Internal cold junction (Pt100)

• Cold junction accuracy: ± 1 K

0 to +1 820 °C (+32 to +3 308 °F)
–200 to +1 372 °C (–328 to +2 501 °F)
–270 to +1 300 °C (–454 to +2 372 °F)
–50 to +1 768 °C (–58 to +3 214 °F)
–50 to +1 768 °C (–58 to +3 214 °F)

500 K

50 K

50 K
500 K
500 K

Output

Output signal

Signal on alarm

Load

Analog, 4 to 20 mA

• Underranging:
Linear drop to 3.8 mA

• Overranging:
Linear rise to 20.5 mA

• Sensor breakage; sensor short-circuit

1)

:

≤ 3.6 mA or ≥ 21.0 mA (if setting is ≥ 21.0 mA an output current ≥ 21.5 mA is guaranteed)

Max. (V

power supply

- 8 V) / 0.025 A (Current output)

Transmission behavior

Galvanic isolation

1) Not for thermocouples

Temperature linear

U = 500 VAC (input/output)

2 Endress+Hauser

iTEMP TMT80

3

5

6

3

4

5

6

3

6

RTD

1

2

4

6

TC

2-wire

3-wire

4-wire

8 to 35 V DC

4 to 20 mA

SETUP-Socket

white white

red

red

white

red

red

white

red

Input current required

Current limit

Switch-on delay

Terminal assignment

≤ 3.5 mA

≤ 25 mA

4 s

Power supply

Supply voltage

Residual ripple

Response time

Reference operating conditions

Maximum measured error

A0013539-EN

 1 Terminal assignment of temperature transmitter

Ub = 8 to 35 V, reverse polarity protection

Permitted ripple Uss ≤ 3 V at Ub ≥ 15 V, f

max.

= 1 kHz

Performance characteristics

1 s

• Calibration temperature: +25 °C (+77 °F) ± 5 K (9 °F)

• Supply voltage: 24 V

• 4-wire circuit for resistance adjustment

The data relating to the measured error are typical values and correspond to a standard deviation of
± 3σ (normal distribution), i.e. 99.8% of all measured values achieve the specified values or better
values. Percentage values refer to the set span. The larger value applies.

Resistance thermometer RTD Pt100, Pt1000 0.5 K or 0.15%

Thermocouples TC K, N

DC

Designation Accuracy

typ. 1.0 K or 0.15 %

S, B, R

typ. 2.0 K or 0.15 %

2)

Influence of the supply voltage

2) All data is related to a full scale value

≤ ±0.01%/V deviation from 24 V

Endress+Hauser 3

iTEMP TMT80

A

B

C

Long-term drift

Influence of ambient temperature

Influence of load

Comparison point

Mounting location

≤ 0.1 K/Year

3)

or ≤ 0.05%/Year

4)

• Resistance thermometer (RTD):
Td = ± [(15 ppm/K * (Upper range value - Lower range value)) + (50 ppm/K * Set measuring
range)] * Δ T
Example of Pt100 resistance thermometer:
Td = ± [(15 ppm/K * (850 °C + 200 °C)) + (50 ppm/K * 100 °C)] * 10 K = ±0.21 K
Upper range value: 850 °C, Lower range value: –200 °C, Measuring range (4 to 20 mA) configured
= 0 to +100 °C, Temperature deviation Δ T= 10 K

• Thermocouple (TC):
Td = ± [(50 ppm/K * (Upper range value - Lower range value)) + (50 ppm/K * Set measuring
range)] * Δ T

Δ T = Deviation in ambient temperature from reference operating condition (+25 °C (+77 °F) ±
5 K (9 °F)).

≤ ±0.02%/100 Ω

5)

Pt100, as per DIN IEC 60751 Class B (internal cold junction for thermocouples TC)

Installation

A0008035

A Terminal head in accordance with DIN EN 43 729 flat face, direct installation on insert with cable entry

(center hole 7 mm (0.28 in))
B Separate from process in field housing
C With clip on DIN rail as per IEC 60715 (TH35)

Orientation

No restrictions

Environment

Ambient temperature range

3) Under reference operating conditions

4) % is related to the set span. The larger value is valid.

5) Under reference operating conditions

4 Endress+Hauser

–40 to +85 °C (–40 to +185 °F)

iTEMP TMT80

22.8 (0.9)

33 (1.3)

Æ44 (1.73)

Æ7 (0.28)

Æ5 (0.2)

Storage temperature

Humidity

Climate class

Degree of protection

Shock and vibration resistance

Electromagnetic compatibility (EMC)

–40 to +100 °C (–40 to +212 °F)

• Condensation as per IEC 60 068-2-33:

• Max. rel. humidity: 95% as per IEC 60068-2-30

As per IEC 60 654-1, Class C

IP 00. Depends on the terminal head or field housing when installed.

4 g / 2 to 150 Hz as per IEC 60 068-2-6

CE compliance

Electromagnetic compatibility in accordance with all the relevant requirements of the IEC/EN 61326
series and NAMUR Recommendation EMC (NE21). For details, refer to the Declaration of
Conformity.

Maximum measured error <1% of measuring range.

Interference immunity as per IEC/EN 61326 series, industrial requirements

Interference emission as per IEC/EN 61326 series, Class B equipment

Mechanical construction

Design, dimensions

Weight

Materials

Terminals

A0013537

 2 Dimensions of the head transmitter in mm (in)

Approx. 40 g (1.41 oz)

• Housing: Polycarbonate (PC), complies with UL94 HB flammability standard (HB: Horizontal
Burning Test). Terminals: Nickel-plated brass and gold-plated contact

• Potting: WEVO PU 403 FP/FL, approved in accordance with UL94 V0 flammability standard (V0:
Vertical Burning Test)

Screw terminals, wires up to max. 1.75 mm2 (15 AWG) (secure screws) or 1.5 mm2 (16 AWG) with
wire end ferrules

Endress+Hauser 5

Operability

iTEMP TMT80

Remote operation

CE mark

Other standards and guidelines

Configuration using PC operating program ReadWin 2000

Menu Configurable parameters

Standard settings • Options for sensor type

• Connection type (2-, 3- or 4-wire connection)

• Options for measuring unit: °C, °F

• Measuring range limits (dependent on sensor type selected)

• Compensation of wire resistance (0 to 20 Ω for RTD 2-wire circuit)

• Failsafe mode: ≤ 3.6 mA or ≥21.0 mA;
(if setting ≥ 21.0 mA, an output current of ≥21.5 mA is guaranteed)

• Zero point, offset: –9.9 to +9.9 K

Certificates and approvals

The measuring system meets the legal requirements of the applicable EC guidelines. These are listed
in the corresponding EC Declaration of Conformity together with the standards applied. The
manufacturer confirms successful testing of the device by affixing to it the CE mark.

• IEC 60529: Degrees of protection provided by enclosures (IP code)

• IEC/EN 61010: Safety requirements for electrical equipment for measurement, control and
laboratory use

• NAMUR: International user association of automation technology in process industries
(www.namur.de).

Device-specific accessories

Communication-specific accessories

Service-specific accessories

Accessories

• Mounting kit for head transmitter (4 screws, 6 springs, 10 fuses)
Order code: 51001112

• Adapter for top-hat rail mounting, DIN rail clip according to IEC 60715
Order code.: 51000856

• Field housing TAF10 for Endress+Hauser head transmitter, aluminum, IP 66
Order code: TAF10

• FXA291 Commubox: PC interface cable, USB, with 4-pin connector;

Order code: 51516983

• TXU10-AA: ReadWin® 2000 setup program and PC interface cable, USB, with 4-pin connector;

Order code: TXU10-AA

ReadWin® 2000 can also be downloaded free of charge from the following website:

www.endress.com/readwin

Accessories Description

Applicator Software for selecting and sizing Endress+Hauser measuring devices:

• Calculation of all the necessary data for identifying the optimum measuring
device: e.g. pressure loss, accuracy or process connections.

• Graphic illustration of the calculation results

Administration, documentation and access to all project-related data and
parameters over the entire life cycle of a project.

Applicator is available:

• Via the Internet: https://portal.endress.com/webapp/applicator

• On CD-ROM for local PC installation.

6 Endress+Hauser

iTEMP TMT80

Configurator Product Configurator - the tool for individual product configuration

• Up-to-the-minute configuration data

• Depending on the device: Direct input of measuring point-specific information
such as measuring range or operating language

• Automatic verification of exclusion criteria

• Automatic creation of the order code and its breakdown in PDF or Excel output
format

• Ability to order directly in the Endress+Hauser Online Shop

The Configurator is available on the Endress+Hauser website: www.endress.com ->
Click "Corporate" -> Select your country -> Click "Products" -> Select the product
using the filters and the search field -> Open the product page -> The "Configure"
button to the right of the product image opens the Product Configurator.

W@M Life cycle management for your plant

W@M supports you with a wide range of software applications over the entire
process: from planning and procurement, to the installation, commissioning and
operation of the measuring devices. All the relevant device information, such as
the device status, spare parts and device-specific documentation, is available for
every device over the entire life cycle.
The application already contains the data of your Endress+Hauser device. Endress
+Hauser also takes care of maintaining and updating the data records.

W@M is available:

• Via the Internet: www.endress.com/lifecyclemanagement

• On CD-ROM for local PC installation.

Supplementary documentation

Operating Instructions iTEMP TMT80 (BA00292R/09)

Endress+Hauser 7

www.addresses.endress.com