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ManualsBrandsEndress and Hauser Wetzer ManualsElectronicsTemperature Transmitter, Field Housing

Table Of Contents

Universal sensor input, with HART

protocol and backlit display

Application

• Universal temperature transmitter with HART®

communication for the conversion of various input signals

into a scalable, analog 4 to 20 mA output signal

• The iTEMP TMT142 is characterized by its reliability, long-

term stability, high precision and advanced diagnostic

function (important in critical processes).

• For the highest level of safety, reliability and risk reduction

• Universal input for resistance thermometers (RTD),

thermocouples (TC), resistance transmitters (Ω), voltage

transmitters (mV)

• Stainless steel housing for demanding environmental

conditions, optional

Your benefits

• Extremely reliable in harsh, industrial environments thanks

to explosion-proof, single-chamber field housing and

compact, fully encapsulated electronics

• Backlit display with large characters

• Diagnostics information according to NAMUR NE107

• Reliable operation thanks to sensor and device monitoring

• International approvals such as CSA (IS, NI, XP and DIP) and

ATEX (Ex ia, Ex d and dust ignition-proof)

• Integrated Bluetooth® interface for the wireless display of

measured values and configuration via Endress+Hauser

SmartBlue (app), optional

Products Solutions Services

Technical Information

iTEMP TMT142

Temperature field transmitter

TI00107T/09/EN/14.20

71471046

2020-04-10

Summary of content (24 pages)

PAGE 1
TI00107T/09/EN/14.
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iTEMP TMT142 Function and system design Measuring principle Electronic recording, conversion and display of various input signals in industrial temperature measurement.
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iTEMP TMT142 Standard diagnostic functions • • • • • Cable open-circuit, short-circuit of sensor wires Incorrect wiring Internal device errors Overrange/underrange detection Device temperature overrange/underrange detection Corrosion detection as per NAMUR NE89 Corrosion of the sensor connection cables can cause incorrect measured value readings.
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iTEMP TMT142 Resistance thermometer (RTD) as per standard Designation α Measuring range limits Min. span OIML R84: 2003, GOST 6651-94 Cu50 (14) 0.004260 –50 to +200 °C (–58 to +392 °F) 10 K (18 °F) Pt100 (Callendar van Dusen) Nickel polynomial Copper polynomial - The measuring range limits are specified by entering the 10 K limit values that depend on the coefficients A to C and (18 °F) R0. - • Type of connection: 2-wire, 3-wire or 4-wire connection, sensor current: ≤ 0.
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iTEMP TMT142 Load Overranging Linear increase from 20.0 to 20.5 mA Failure e.g. sensor failure; sensor short-circuit ≤ 3.6 mA ("low") or ≥ 21 mA ("high"), can be selected The "high" alarm setting can be set between 21.5 mA and 23 mA, thus providing the flexibility needed to meet the requirements of various control systems. Load Rb max.= (Ub max. - 11 V) / 0.023 A (current output). Ω 1087 837 250 0 11 V 16.75 V 30.
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iTEMP TMT142 Switch-on delay • ≤ 2 s until the start of HART® communication. • ≤ 7 s until the first valid measured value signal is present at the current output. While switch-on delay: Ia ≤ 3.8 mA.
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iTEMP TMT142 Surge current resistance • Lightning surge current D1 (10/350 µs) • Nominal discharge current C1/C2 (8/20 µs) • Iimp = 1 kA (per wire) • In = 5 kA (per wire) In = 10 kA (total) Series resistance per wire 1.8 Ω, tolerance ±5 % 1 3 4 4 3+ S1 S2 2 1 - + - + ! - - + Bus connection and supply voltage A0041390-EN 4 1 Electrical connection of surge arrester Sensor connection The device must be connected to the potential equalization via the external ground clamp.
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iTEMP TMT142 Standard Designation GOST 6651-94 Pt100 (9) Measuring range Typical measured error (±) Thermocouples (TC) as per standard 1) IEC 60584, Part 1 Type K (NiCr-Ni) (36) IEC 60584, Part 1 Type S (PtRh10-Pt) (39) GOST R8.8585-2001 Type L (NiCr-CuNi) (43) 0 to +800 °C (32 to +1 472 °F) 0.11 °C (0.2 °F) 0.13 °C (0.23 °F) Digital value 1) Value at current output 0.41 °C (0.74 °F) 0.47 °C (0.85 °F) 1.83 °C (3.29 °F) 1.84 °C (3.31 °F) 2.45 °C (4.41 °F) 2.46 °C (4.
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iTEMP TMT142 Measured error for thermocouples (TC) and voltage transmitters Standard Designation Measuring range Measured error (±) Digital 1) IEC 60584-1 / ASTM E230-3 Maximum 3) Based on measured value 4) Type A (30) 0 to +2 500 °C (+32 to +4 532 °F) ≤ 2.00 °C (3.6 °F) ME = ± (1.0 °C (1.8 °F) + 0.026% * (MV - LRV)) Type B (31) +500 to +1 820 °C (+932 to +3 308 °F) ≤ 2.1 °C (3.78 °F) ME = ± (3.0 °C (5.4 °F) 0.09% * (MV- LRV)) ≤ 1.00 °C (1.80 °F) ME = ± (0.9 °C (1.62 °F) + 0.
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iTEMP TMT142 Sample calculation with Pt100, measuring range 0 to +200 °C (+32 to +392 °F), ambient temperature +35 °C (+95 °F), supply voltage 30 V: Measured error digital = 0.04 °C + 0.006% x (200 °C - (-200 °C)): 0.11 °C (0.20 °F) Measured error D/A = 0.03 % x 200 °C (360 °F) 0.06 °C (0.11 °F) Influence of ambient temperature (digital) = (35 - 25) x (0.0013 % x 200 °C (-200 °C)), min. 0.003 °C 0.05 °C (0.09 °F) Influence of ambient temperature (D/A) = (35 - 25) x (0.003% x 200 °C) 0.06 °C (0.
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iTEMP TMT142 Operating influences The measured error data correspond to 2 s (Gaussian distribution). Influence of ambient temperature and supply voltage on operation for resistance thermometers (RTD) and resistance transmitters Designation Standard Ambient temperature: Influence (±) per 1 °C (1.8 °F) change Digital 1) Supply voltage: Influence (±) per 1 V change D/A 2) Digital 1) D/A 2) Maximum Based on measured value Maximum Based on measured value Pt100 (1) ≤ 0.013 °C (0.023 °F) 0.
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iTEMP TMT142 Designation Ambient temperature: Influence (±) per 1 °C (1.8 °F) change Standard Digital 1) Type D (33) ASTM E988-96 Type E (34) ≤ 0.04 °C (0.072 °F) Type K (36) IEC 60584-1 Type N (37) Type R (38) ≤ 0.02 °C (0.036 °F) ≤ 0.01 °C (0.018 °F) 0.0014% * (MV - LRV), at least 0.0 °C (0.0 °F) 0.0015% * (MV - LRV), at least 0.0 °C (0.0 °F) ≤ 0.01 °C (0.018 °F) 0.0014% * (MV - LRV), at least 0.010 °C (0.018 °F) - Type T (40) DIN 43710 Type U (42) Type L (43) GOST R8.
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iTEMP TMT142 Designation Standard Pt50 (8) GOST 6651-94 Pt100 (9) Ni100 (6) Ni120 (7) Cu50 (10) Cu100 (11) Ni100 (12) Ni120 (13) Cu50 (14) DIN 43760 IPTS-68 OIML R84: 2003 / GOST 6651-2009 OIML R84: 2003 / GOST 6651-94 Long-term drift (±) 1) ≤ 0.0068% * (MV ≤ 0.042% * (MV - LRV) LRV) or or 0.02 °C (0.04 °F) 0.04 °C (0.07 °F) ≤ 0.0076% * (MV LRV) or 0.04 °C (0.08 °F) ≤ 0.01% * (MV LRV) or 0.06 °C (0.11 °F) ≤ 0.011% * (MV LRV) or 0.07 °C (0.12 °F) ≤ 0.0061% * (MV ≤ 0.
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iTEMP TMT142 Designation Standard Type L (43) GOST R8.8585-20 01 Long-term drift (±) 1) 0.15 °C (0.27 °F) 0.26 °C (0.47 °F) 0.31 °C (0.56 °F) 0.41 °C (0.74 °F) 0.44 °C (0.79 °F) ≤ 0.012% * MV or 4 µV ≤ 0.021% * MV or 7 µV ≤ 0.025% * MV or 8 µV ≤ 0.033% * MV or 11 µV ≤ 0.036% * MV or 12 µV Voltage transmitter (mV) –20 to 100 mV 1) Whichever is greater Analog output long-term drift D/A long-term drift 1) (±) after 1 month after 6 months after 1 year after 3 years after 5 years 0.
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iTEMP TMT142 Remote mounting !6.4(0.25) 121 (4.8) 121 (4.8) !6.4(0.25) 121 (4.8) 121 (4.8) M6 WR10 A0007952 6 For wall mounting of the field transmitter or pipe mounting with a 2" pipe mounting bracket as an accessory, see the "Accessories" section.
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iTEMP TMT142 Environment Ambient temperature • Without display: –40 to +85 °C (–40 to +185 °F) • With display: –40 to +80 °C (–40 to +176 °F) • With overvoltage protection module: –40 to +85 °C (–40 to +185 °F) For hazardous areas see Ex documentation →  23 The display can react slowly at temperatures < –20 °C (–4 °F). The legibility of the display cannot be guaranteed at temperatures < –30 °C (–22 °F).
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iTEMP TMT142 Mechanical construction Design, dimensions Dimensions in mm (in) 132 (5.2) 40 50 121 (4.8) 135 (5.3) 30 20 10 °F 0 ! (0 6.4 .2 5) 112 (4.4) 106 (4.2) 121 (4.8) A0025824 8 Die-cast aluminum housing for general applications, or optional stainless steel housing (316L) • Electronics module and connection compartment • Display attachable in 90° stages Weight Materials • Aluminum housing approx. 1.4 kg (3 lb), with display • Stainless steel housing approx. 4.2 kg (9.
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iTEMP TMT142 1 2 3 4 OFF Bluetooth ON SmartBlue App FieldCare/ DeviceCare PLC 200 RN221N HART® Modem 5 A0041440 9 1 2 3 4 5 Local operation Operating options of device Hardware settings via DIP switches Device configuration via Bluetooth® wireless technology Configuration software, e.g. FieldCare PLC Power supply unit and active barrier, .e.g.
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iTEMP TMT142 1 2 OFF Bluetooth ON A0041453 1 2 Electrical connection for the display module DIP switch for activating and deactivating the device write protection and Bluetooth® wireless technology interface Remote operation The configuration of HART® functions and device-specific parameters takes place via the device's HART® communication. There are special configuration tools from different manufacturers available for this purpose.
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iTEMP TMT142 Radio approval The device has Bluetooth® radio approval in accordance with the Radio Equipment Directive (RED) for Europe and the Federal Communications Commission (FCC) 15.247 for North America. Europe This device meets the requirements of the Telecommunications Directive RED 2014/53/EU: • EN 300 328 • EN 301 489-1 • EN 301 489-17 Canada and United States English: This device complies with Part 15 of the FCC Rules and with Industry Canada licenceexempt RSS standard(s).
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iTEMP TMT142 2. Select the country 3. Click Products 4. Select the product using the filters and search field 5. Open the product page The Configuration button to the right of the product image opens the Product Configurator.
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iTEMP TMT142 Service-specific accessories 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.
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iTEMP TMT142 System products Accessories Description RN221N Active barrier with power supply for safe separation of 4 to 20 mA standard signal circuits. Has bidirectional HART® transmission and optional HART® diagnostics if transmitters are connected with monitoring of 4 to 20 mA signal or HART® status byte analysis and an E+H-specific diagnostic command.
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