iTherm Moduline TM112

Summary

Product Identification

• Product Name: iTHERM ModuLine TM112
• Type: Industrial modular thermometer
• Document: TI01793T/09/EN/01.24-00

Application

• Universal use
• Measuring range: –200 to +1 100 °C (–328 to +2 012 °F)
• Pressure range: up to 75 bar (1 088 psi)

Key Features

• iTHERM Inserts: Full traceability and high product quality.
• iTHERM QuickSens: Fastest response time of 1.5 s.
• iTHERM StrongSens: Unsurpassed vibration resistance (60g).
• Certifications: International certifications including ATEX, IECEx, CSA, INMETRO for explosion protection, and SIL for functional safety.
• iTEMP Transmitter: Supports common communication protocols and optional Bluetooth® connectivity.

Measuring Principle

Resistance Thermometers (RTD)

• Utilizes Pt100 sensors conforming to IEC 60751.
• Wire-Wound (WW): Suitable for temperatures up to 600 °C (1 112 °F), but more sensitive to vibrations.
• Thin-Film (TF): Smaller size and better vibration resistance. Tolerance Class A as per IEC 60751 up to approx. 300 °C (572 °F).

Thermocouples (TC)

• Based on the Seebeck effect.
• Measure temperature differences; absolute temperature requires knowledge of the cold junction temperature.
• Standardized by IEC 60584 and ASTM E230/ANSI MC96.1.

Input and Measuring Ranges

• Measured Variable: Temperature (temperature-linear transmission).
• Measuring Range (Examples):
  • Pt100 thin film (TF), basic: –50 to +200 °C (–58 to +392 °F)
  • Pt100 thin film (TF), iTHERM StrongSens: –50 to +500 °C (–58 to +932 °F)
  • Pt100 wire wound (WW), extended: –200 to +600 °C (–328 to +1 112 °F)
  • Thermocouple TC, type J: –40 to +750 °C (–40 to +1 382 °F)
  • Thermocouple TC, type K: –40 to +1 100 °C (–40 to +2 012 °F)

Output and Transmitters

• Output Signal: Via directly-wired sensors or iTEMP transmitters.
• iTEMP Transmitters: Available with various communication protocols:
  • 4 to 20 mA
  • HART® (optional Bluetooth®)
  • PROFIBUS® PA
  • FOUNDATION™ Fieldbus™
  • PROFINET® and Ethernet-APL™
  • IO-Link®
• Field Transmitters: Available with HART®, FOUNDATION™ Fieldbus™, or PROFIBUS® PA communication.

Performance Characteristics

Maximum Measurement Error (RTD)

• Class A: ± (0.15 + 0.002 · |t|) °C
• Class AA: ± (0.1 + 0.0017 · |t|) °C
• Class B: ± (0.3 + 0.005 · |t|) °C (|t| = absolute temperature value in °C)

Response Time (Typical values in water, 0.4 m/s, 10 K change)

• Standard Pt100 (TF, WW): t50 = 5 s, t90 = 11 s
• iTHERM QuickSens: t50 = 0.5 s, t90 = 1.5 s
• Thermocouple (TC) Type J, K, N: t50 = 2.5 s, t90 = 7 s

Insulation Resistance

• RTD: > 100 MΩ at +25 °C (100 V DC)
• TC: > 1 GΩ at +20 °C (500 V DC); > 5 MΩ at +500 °C (500 V DC)

Installation

• Orientation: No restrictions, but self-draining is recommended depending on the application.
• Immersion Length: Influences measurement accuracy; at least half the pipe diameter is recommended for installation in pipes.

Environmental Conditions

• Ambient Temperature Range (Terminal Head):
  • Without transmitter: Depends on head/gland.
  • With iTEMP head transmitter: –40 to +85 °C (–40 to +185 °F).
  • With iTEMP head transmitter and display: –20 to +70 °C (–4 to +158 °F).
• Storage Temperature: –40 to +85 °C (–40 to +185 °F).
• Humidity: Max. 95% relative humidity (non-condensing).
• Degree of Protection: Max. IP 66 (NEMA Type 4x), partly IP 68.

Shock and Vibration Resistance

• Exceeds IEC 60751 requirements (3g, 10-500 Hz).
• iTHERM StrongSens / QuickSens (ø6 mm): 600 m/s² (60g).
• Other types: Generally ≤ 30 m/s² (≤ 3g) or ≤ 40 m/s² (≤ 4g).

Process Conditions

• Process Temperature Range: –200 to +1 100 °C (–328 to +2 012 °F) (depends on sensor/material).
• Process Pressure Range:
  • Max. 75 bar (1 088 psi) to +200 °C (+392 °F) for standard TF and QuickSens Pt100.
  • Max. 50 bar (725 psi) to +400 °C (+752 °F) for other sensor types.

Mechanical Construction

• Insert Diameter (⌀ID): 3.175 mm (¹⁄₈ in), 6.35 mm (¹⁄₄ in), and others.
• Lagging Diameter (⌀D): 9.525 mm (³⁄₈ in) or 12.7 mm (¹⁄₂ in).
• Materials: Common materials include AISI 316/1.4401 (up to 650 °C) and Alloy 600/2.4816 (up to 1 100 °C).

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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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