Endress+Hauser TMT162 Temperature Field Transmitter

Overview

The Endress+Hauser TMT162 is a dual-input, head-mounted universal temperature transmitter engineered to accept virtually any temperature sensor signal – resistance thermometers (RTD), thermocouples (TC), resistance transmitters (Ω), or millivolt (mV) signals – and convert it into a stable, digitally communicable output over HART®, FOUNDATION Fieldbus™, or PROFIBUS® PA. Built into Endress+Hauser’s iTEMP family, the TMT162 is designed for plant engineers who need one transmitter platform that can be configured on-site for whichever sensor type a process actually uses, reducing the spare-parts inventory and engineering time associated with carrying multiple single-purpose transmitters.

Working closely with plant engineers in the region, Seven Star LLC proudly supplies the TMT162 temperature transmitter to refineries, petrochemical plants, desalination facilities, and process industries across the Sultanate of Oman and the wider GCC. Every unit shipped from our regional inventory is genuine Endress+Hauser factory stock, backed by full manufacturer warranty and local calibration and commissioning support.

Measurement Principle

The Endress+Hauser TMT162 operates as a universal signal conditioner rather than a sensor itself: it accepts the raw resistance, voltage, or millivolt signal generated by a connected RTD, thermocouple, or resistance/voltage transmitter, linearizes it against the appropriate characteristic curve, and outputs a clean, temperature-proportional 4-20 mA HART signal or a digital FOUNDATION Fieldbus/PROFIBUS PA value. Two independent input channels allow a second sensor to be wired in as a redundant backup, a differential measurement, or a completely separate measuring point, with the transmitter’s onboard diagnostics continuously monitoring both channels for open-circuit, short-circuit, sensor drift, and corrosion at the sensor terminals.

Because the Endress+Hauser TMT162 performs signal conditioning digitally inside a fully potted electronics module, the practical result for the plant is a transmitter that is largely immune to vibration and moisture ingress, delivers galvanic isolation of 2 kV between the sensor input and the output loop, and reports NAMUR NE107-compliant diagnostic status so operators can distinguish a genuine process alarm from a sensor fault without a site visit.

Engineering Design of the Endress+Hauser TMT162

The Endress+Hauser TMT162 is housed in a dual-compartment field enclosure available in aluminum or optional stainless steel for hygienic or heavily corrosive environments, with a separate compartment for the terminal block and the electronics so that field wiring can be carried out without exposing the transmitter core. A large backlit local display shows the measured value, a bar graph, and unit/status indication, and the entire configuration – sensor type, range, alarm levels, damping – can be set locally via the display keys or remotely via a HART handheld communicator or asset management software without opening the enclosure.

The transmitter mounts directly onto a DIN Form B (TA) connection head on the sensor assembly, onto a standard 2-inch pipe using an optional mounting bracket, or into a control cabinet as a rail-mounted variant, giving instrumentation designers flexibility across new installations and retrofits of existing thermowell assemblies. Approvals for ATEX (Ex ia, Ex nA nL, Ex d), FM, and CSA (IS, NI, XP, DIP) intrinsically safe and explosion-proof variants mean the same transmitter platform can be specified across both safe-area and hazardous-area process units on a single site.

Key Features

The Endress+Hauser TMT162 combines broad sensor compatibility with the diagnostic depth plant engineers expect from a modern process transmitter, and the Endress+Hauser TMT162 feature set below reflects that breadth. Key features include:

• Universal dual-channel input accepting RTD, thermocouple, resistance transmitter, and mV signals from a single hardware platform.
• Selectable digital communication over HART, FOUNDATION Fieldbus H1, or PROFIBUS PA (Profile 3.02) to match the plant’s existing control system.
• Accuracy of ±0.1 K for Pt100 RTD inputs, suitable for tightly controlled process temperature loops.
• Backlit local display with measured value, bar graph, and diagnostic status for quick field verification.
• Sensor backup and automatic switchover between the two input channels on primary sensor failure.
• Drift alarm and corrosion detection at the sensor terminals for early warning of degrading RTD or thermocouple connections.
• SIL 2 certification per IEC 61508:2010 for use in safety instrumented functions.
• ATEX, FM, and CSA hazardous-area approvals plus marine approval for offshore and marine process applications.

Industrial Applications

The Endress+Hauser TMT162 is deployed wherever a plant needs dependable, sensor-agnostic temperature measurement on process lines, reactors, storage tanks, and rotating equipment bearings. In Oman’s oil and gas sector, it is commonly specified on wellhead skids, gas processing trains, and pipeline metering stations where hazardous-area certification and HART compatibility with existing asset management systems are mandatory. In desalination and district cooling plants across Muscat, Sohar, and Salalah, the TMT162’s dual-input capability lets a single transmitter monitor both a primary RTD and a redundant backup sensor on critical heat-exchanger and chiller loops, reducing unplanned downtime from a single sensor failure.

With fast quotation turnaround and technical support, Seven Star LLC distributes the TMT162 to EPC contractors and plant operators across the Sohar and Salalah economic zones, as well as to pharmaceutical, food and beverage, and power generation facilities throughout the GCC that require SIL 2-rated temperature transmitters with full documentation and factory traceability. Its stainless steel housing option also makes it a common choice for hygienic process skids in the region’s growing food and pharmaceutical manufacturing base.

Technical Specifications

Key technical parameters of the Endress+Hauser TMT162 temperature field transmitter, the Endress+Hauser TMT162, are summarized below.

Call To Action

Facility engineers and procurement teams in Oman and the GCC can request a formal quotation for the Endress+Hauser TMT162 temperature field transmitter directly from Seven Star LLC. The Endress+Hauser TMT162 remains in regional stock for urgent replacement orders. Our regional warehouse maintains stock of TMT162 units and accessories for rapid dispatch, and our instrumentation division can provide the full technical datasheet, wiring diagrams, and hazardous-area certification documentation to support your project’s engineering package. With regional stock and engineering support in Muscat, Seven Star LLC is your single point of contact for genuine factory-warranted TMT162 transmitters, technical support, and calibration services across the region.