iTemp TMT162

Summary

Product identification

iTEMP TMT162 Temperature field transmitter with two sensor inputs and illuminated display.

• Protocol: FOUNDATION Fieldbus™ (ITK 6.1.2) or PROFIBUS® PA (Profile 3.02).
• Inputs: Universal input for RTD, TC, resistance (Ω), or voltage (mV) transmitters.

Application

• Universal input for resistance thermometer (RTD), thermocouple (TC), resistance transmitter (Ω), voltage transmitter (mV).
• Output via FOUNDATION Fieldbus™ or PROFIBUS® PA.
• Dual-compartment housing for harsh industrial environments.
• Backlit display with measured value, bar graph, and status indication.
• Two sensor inputs.
• Diagnostics information according to NAMUR NE107.
• Sensor monitoring capabilities: failure information, sensor backup, drift alarm, and corrosion detection.
• International approvals including FM, CSA, and ATEX.
• Galvanic isolation of 2 kV between sensor input and output.

Input

Resistance Thermometer (RTD)

• Standards supported: IEC 60751, JIS C1604, SAMA, DIN 43760, GOST 6651, OIML R84.
• Types: Pt, Ni, Cu.
• Connection: 2-wire, 3-wire, or 4-wire.
• Sensor current: ≤ 0.3 mA.
• Wire resistance compensation: Possible for 2-wire (0 to 30 Ω).
• Maximum sensor wire resistance: 50 Ω per wire (3-wire and 4-wire).
• Measuring ranges (examples):
  • Pt100 (IEC 60751): –200 to +850 °C (–328 to +1 562 °F)
  • Ni100 (DIN 43760): –60 to +250 °C (–76 to +482 °F)
  • Cu50 (OIML R84): –50 to +200 °C (–58 to +392 °F)
• Minimum span: 10 K (18 °F) for most RTD types.

Resistance Transmitter (Ω)

• Measuring ranges:
  • 10 to 400 Ω
  • 10 to 2,000 Ω
• Minimum span: 10 Ω.

Thermocouples (TC)

• Standards supported: IEC 60584, ASTM E988, DIN 43710.
• Types: A, B, C, D, E, J, K, L, N, R, S, T, U.
• Measuring ranges (examples):
  • Type K: –270 to +1,372 °C (–454 to +2,501 °F)
  • Type S: –50 to +1,768 °C (–58 to +3,214 °F)
  • Type T: –270 to +400 °C (–454 to +752 °F)
• Minimum span: 50 K (90 °F).
• Internal cold junction compensation: Pt100.
• External cold junction compensation: Configurable value –40 to +85 °C (–40 to +185 °F).
• Maximum sensor wire resistance: 10 kΩ.

Voltage Transmitter (mV)

• Measuring ranges:
  • –5 to 30 mV
  • –20 to 100 mV
• Minimum span: 5 mV.

Input Configuration

• Possible connection combinations for dual inputs:
  • RTD/resistance transmitter (2-wire) with RTD/resistance transmitter (2-wire or 3-wire) or Thermocouple/voltage transmitter.
  • RTD/resistance transmitter (3-wire) with RTD/resistance transmitter (2-wire or 3-wire) or Thermocouple/voltage transmitter.
  • Thermocouple/voltage transmitter with RTD/resistance transmitter (2-wire, 3-wire) or Thermocouple/voltage transmitter.

Output

• FOUNDATION Fieldbus™: H1, IEC 61158-2, Manchester Bus Powered (MBP). Data transmission rate: 31.25 kBit/s.
• PROFIBUS® PA: In accordance with EN 50170 Volume 2, IEC 61158-2, Manchester Bus Powered (MBP). Data transmission rate: 31.25 kBit/s.
• Galvanic isolation: U = 2 kV AC (input/output).
• Failure information: Status messages according to FOUNDATION Fieldbus™ or PROFIBUS® PA specifications.
• Linearization/transmission behavior: Temperature-linear, resistance-linear, voltage-linear.
• Filter: 1st order digital filter: 0 to 60 s.

System Integration

FOUNDATION Fieldbus™

• Manufacturer ID: 452B48
• Device type: 10CC (Hex)
• ITK Version: 6.1.2
• Link Master (LAS) capability: Yes
• Supported functions: Quick Setup, User sensor trim, Factory trim settings, Callendar Van Dusen, Polynomial linearization, Sensor drift detection.

PROFIBUS® PA

• Profile version: 3.02
• Manufacturer-specific ID no.: 1549 (hex)
• Write protection: Activated by hardware setting (DIP switch).
• GSD files: Available via Endress+Hauser website.

Power Supply

• Supply voltage: Ub = 9 to 32 V DC, polarity-independent.
• Maximum voltage: Ub = 35 V DC.
• FISCO/FNICO compliance: According to IEC 60079-27.

Electrical Characteristics

• Current consumption (device basic current): ≤11 mA.
• Switch-on current: ≤11 mA (FOUNDATION Fieldbus™ only).
• Failure current FDE: 0 mA.

Performance Characteristics

• Response time: Measured value update < 1 s per channel.
• Maximum measured error (typical values):
  • RTD: 0.1 °C to 1 °C (0.18 °F to 1.8 °F) depending on type.
  • TC: Typ. 0.25 °C to 1.0 °C (0.45 °F to 1.8 °F) depending on type.
  • Resistance transmitter: ±0.04 Ω or ±0.08 Ω.
  • Voltage transmitter: ±10 µV.
• Non-repeatability:
  • Resistance: 15 mΩ or 100 ppm of measured value.
  • Voltage: 4 µV or 3 µV.
• Long-term drift: ≤ 0.1 °C/year (≤ 0.18 °F/year) or ≤ 0.05 %/year.
• Influence of ambient temperature:
  • Resistance: 15 ppm of measured value, min. 1.5 mΩ or 15 mΩ.
  • Voltage: 30 ppm of measured value, min. 0.3 µV or 0.15 µV.
• Resolution of A/D converter: 18 bit.

Mechanical / Hydraulic

• Housing materials: Die-cast aluminum or stainless steel (316L), or T17 stainless steel for hygienic applications.
• Weight:
  • Aluminum housing: approx. 1.4 kg (3 lb) with display.
  • Stainless steel housing: approx. 4.2 kg (9.3 lb) with display.
  • T17 housing: approx. 1.25 kg (2.76 lb) with display.
• Cable entries: Available with ½" NPT, M20, or G½" threads.
• Mounting: Direct sensor mounting or remote mounting using brackets.
• Display mounting: Attachable in 90° stages.

Environment

• Ambient temperature:
  • Without display: –40 to +85 °C (–40 to +185 °F).
  • With display: –40 to +80 °C (–40 to +176 °F).
• Storage temperature:
  • Without display: –40 to +100 °C (–40 to +212 °F).
  • With display: –40 to +80 °C (–40 to +176 °F).
• Humidity: 0 to 95 %.
• Altitude: Up to 2,000 m (6,560 ft) above sea level.
• Climate class: As per IEC 60654-1, Class C.
• Degree of protection: IP66/67, Type 4X (aluminum/stainless steel housing); IP66 / IP68, NEMA 4X, NEMA 6P (T17 stainless steel housing).
• Shock and vibration resistance: As per KTA 3505, IEC 60068-2-6 (vibration), DNV GL Guideline.
• Electromagnetic compatibility (EMC): In accordance with IEC/EN 61326 series and NAMUR Recommendation EMC (NE21). Interference immunity: Industrial requirements. Interference emission: Class B equipment.
• Overvoltage category: II.
• Degree of contamination: 2.

Operability

• Configuration: Via fieldbus interface using configuration programs or via DIP switches for hardware settings.
• Display: LC display with bar graph, measured value, status, unit, caution symbol, and communication symbol.

Certificates and Approvals

• CE mark: Complies with EC directives.
• Ex approvals: Information available on request (ATEX, FM, CSA).
• MTBF: 126 a (FOUNDATION Fieldbus™ and PROFIBUS® PA).
• UL recognized component: E225237.
• CSA: CAN/CSA-C22.2 No. 61010-1.
• FOUNDATION Fieldbus™ certification: ITK revision 6.1.2.
• PROFIBUS® PA certification: Profile 3.02.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

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