Technical Data
CompareTemperature transmitters
| Measuring Principle | Field transmitter |
| Input | 1 x RTD, TC, Ohm, mV |
| Output | 1 x analog 4...20 mA / HART |
| Auxiliary power supply | 11…36 V DC (standard-version) 11...30 V DC (Ex ia) |
| Communication | HART-protocol Bluetooth® wireless technology |
| Installation | in field |
| Accuracy | (Pt100, -50...200 °C) <=0,1 K (Pt100, -58...392 °F) <=0,18 °F |
| Galvanic isolation | yes |
| Certification | ATEX Ex ia, Ex ic, Ex tc, Ex nA, Ex db, Ex tb ATEX IECEx Ex ia, Ex tb, Ex db IECEx Ex d, Ex tb CSA C/US General Purpose CSA C/US IS, NI, XP, DIP INMETRO Ex ia, Ex d, Ex tb NEPSI Ex ia, Ex d EAC Ex ia, Ex d UKCA Ex ia, Ex ic, Ex tb, Ex tc, Ex nA, Ex db JPN Ex d, Ex tb PESO Ex ia IND Ex ia KC |
The single-channel iTEMP TMT142B temperature transmitter with backlit display delivers reliable, precise and long-term-stable measuring results under demanding conditions and in hazardous areas. It features a Bluetooth® interface for secure remote operation (Endress+Hauser SmartBlue app) and is equipped with a robust single-compartment field housing. It connects RTD, thermocouple (TC), resistance (Ω) or voltage (mV) signals and converts them into a 4...20 mA signal with HART® 7 communication.
Advantages
-
Numerous international approvals permit use in hazardous areas:
-
CSA (IS, NI, XP and DIP) and ATEX (Ex ia, Ex d and dust explosion protection)
-
Pressure-tight single-compartment housing with integrated overvoltage protection for reliable, long-term, stable and precise temperature measurement even under demanding conditions
-
Bluetooth® interface: use the Endress+Hauser SmartBlue app to save time and effort on instrument commissioning, configuration and maintenance
-
Advanced diagnostics and condensed status notifications support preventive maintenance in accordance with NAMUR NE107
-
Newly developed large-digit backlit display clearly shows process information under all environmental conditions
Application areas
-
Temperature transmitter supporting secure Bluetooth® and HART® 7 communication
-
Backlit display for clear on-site display of process and diagnostic information
-
Universal input signals for connecting RTD, thermocouple, resistance and voltage signals
-
High reliability, high long-term stability and high measuring accuracy for safe use under demanding conditions
-
Robust aluminum or stainless steel housing for safe use in hazardous areas or under demanding conditions
Spare Parts & Accessories 23
23 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| TMT142X- | Spare Part TMT142XSpare parts TMT142X | Enquire |
| TMT142E- | Electronic module TMT142EAttention: Only 1 piece per position orderable in offer/order because of item category group ZTA1. | Enquire |
| TMT142X- | Spare Part TMT142XSpare parts TMT142X | Enquire |
| 71158816 | O-ring | Details |
| 71502617 | O-ring 88x3 HNBR 70° Shore PTFE_5pcsPacking unit: 5 pieces | Details |
| TMT142G- | Housing TMT142GHousing TMT142G | Enquire |
| 71386275 | Integrable Surge Arrester ModuleFor subsequent mounting in field transmitter. Ensure compatibility. | Details |
| 51004948 | front cover latch pinScrew, washer, spring washer | Details |
| 51006845 | cable glandCable gland NPT 1/2, D4-8.5, IP68 | Details |
| 71638066 | Cable gland M20x1.5 ATEX/IECEx | Details |
| 51004387 | 1/2 NPT to M20x1.5 adapterAdapter M20x1,5/NPT1/2" cable entry | Details |
| 51004915 | M24x1.5 to M20x1.5 adapterAdapter M20x1.5 exter./M24x1.5 intern.VA | Details |
| 71502941 | O-Ring 18.77x1.78 HNBR 70° Shore PTFEPacking unit: 10 pieces | Details |
| 51004490 | blind cover | Details |
| 51006888 | blind cover | Details |
| 71525620 | Blind plug M20x1.5 Ex-d + O-ring, aluminium | Details |
| 71525621 | Blind plug G1/2 Ex-d + o-ring, Alu | Details |
| 71525622 | Blind plug M20x1.5 Ex-d + O-ring V4A | Details |
| 71525623 | Blind plug G1/2 Ex-d + O-ring V4A | Details |
| 51516983 | Communication interface FXA291Serial USB Computer Interface Technical Data: - USB Version1.1 or higher - Power supply via USB - IP51; NEMA/Typ 3 - Ambient temperature: -20....+60oC - Ex: II(2) G (EEx ia) II C - ATEX: BVS 05 ATEX E 095 Scope of deliovery: Commubox FXA 291 MS Windows USB driver Device is submitted for CSA/FM application. The device may not be modified and may be used with intrinsically safe circuits with corresponding characteristics only (see safety certificate). | Details |
Configurator / Comparison
Accessories / Spare parts
Source:Endress+Hauserpublic information from the website
Manuals & Documents 9
All documents for this model9 documents · click to expand
BA iTEMP TMT142B Chinese
BA iTEMP TMT142B English
Operating instructions Temperature field transmitter iTEMP® HART® TMT142 English
iTEMP TMT142B Chinese
温度变送器 Chinese
通用型温度变送器 Chinese
iTEMP TMT142B English
Technical Information iTEMP® HART® TMT142 English
Technical Information Temperature field transmitter iTEMP® HART® TMT142 English
Case Studies
Municipal Wastewater Treatment · Temperature transmitter — Application Case
Site Conditions
This is a Municipal Wastewater Treatment customer whose plant is at the inlet, biological and outlet stages of a municipal plant. The main task was converting RTD or thermocouple signals into a standard current output.
The Problem
The difficulty lies in high solids and corrosive fractions, with large diurnal flow swings; at the same time effluent parameters drift and probes foul with sludge and biofilm. Specification therefore means choosing integral or remote versions by ambient, Ex zone and mounting.
What We Did
We took a temperature range approach — temperature solution matched to measuring point and response needs. Delivery was built around choosing integral or remote versions by ambient, Ex zone and mounting, with point-by-point checks on: stable compliance with Grade 1A discharge limits and online data reporting.
Operating Outcome
In service the system performs as intended — better noise immunity and much smaller transmission error, with routine maintenance falling noticeably.
Food & Beverage · Temperature transmitter — Application Case
Application Context
dosing, pasteurising, filling and CIP stages is a typical Food & Beverage duty. The project started from Temperature transmitter, focusing on converting RTD or thermocouple signals into a standard current output.
Process Constraints
frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, and syrups, dairy and beverages that scale easily, under strict hygienic requirements only amplify it. The Temperature transmitter specification must therefore cover choosing integral or remote versions by ambient, Ex zone and mounting.
Delivery Approach
Delivery was handled as the temperature range — temperature solution matched to measuring point and response needs. Execution centred on choosing integral or remote versions by ambient, Ex zone and mounting, together with food-safety and hygienic design per 3-A / EHEDG.
Field Results
Operation shows the benefit clearly — better noise immunity and much smaller transmission error, with confidence in this measuring point improving markedly.
Chemical & Pharmaceutical · Temperature transmitter — Application Case
Customer Profile
The typical setting in Chemical & Pharmaceutical is reactors, metering vessels and finished-product tanks. The measuring point is Temperature transmitter; the focus is converting RTD or thermocouple signals into a standard current output.
Key Difficulties
Conditions are highly corrosive media with solvents and crystallisation, partly in explosive atmospheres and, on top of that, corrosion plus Ex protection shortens instrument life and makes downtime costly, which a standard configuration cannot handle for long. The design therefore starts with choosing integral or remote versions by ambient, Ex zone and mounting.
Implementation
The scope ran through the temperature range: temperature solution matched to measuring point and response needs. Technically it hinges on choosing integral or remote versions by ambient, Ex zone and mounting, and on these requirements: Ex certification and GMP traceability of records.
Customer Benefit
In practice this means better noise immunity and much smaller transmission error, which cut the workload on the site maintenance team.
Power & Energy · Temperature transmitter — Application Case
Project Background
The project covers boiler feedwater, turbine condensate and FGD/DeNOx systems. The work centres on Temperature transmitter and the core task is converting RTD or thermocouple signals into a standard current output.
Operating Challenges
The medium and duty are characterised by high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. So Temperature transmitter cannot be specified generically — it calls for choosing integral or remote versions by ambient, Ex zone and mounting.
Solution
The Ainstru engineering team worked through the temperature range: temperature solution matched to measuring point and response needs. The configuration involves choosing integral or remote versions by ambient, Ex zone and mounting, with these requirements in view: compliance with power-industry codes and unit availability targets.
Results
Since start-up the system has run steadily; the practical result is better noise immunity and much smaller transmission error.
Related Products
Endress+HauseriTEMP TMT72, Transmitter HART
Endress+HauseriTEMP TMT182, Head Transmitter HART
Endress+HauseriTEMP TMT82, Transmitter HART
Endress+HauseriTEMP TMT71, Transmitter 4-20mA
Endress+HauseriTEMP TMT80, Head Transmitter
Endress+HauseriTEMP TMT31, Transmitter 4-20mA
Endress+HauseriTEMP TMT142, Field Transmitter HART
Endress+Hauser