Omnigrad-S TR65, TC65

Summary

Product Identification

• Models: Omnigrad S TR65 (resistance insert - RTD), TC65 (thermocouple insert - TC)
• Type: Modular thermometer, optionally with adjustable compression fitting.

Applications

• Fine chemicals
• Petrochemicals
• Power stations
• Environmental engineering

Operating Limits

• Measuring Range:
  • Resistance insert (RTD): –200 to 600 °C (–328 to 1,112 °F)
  • Thermocouple (TC): –40 to 1,100 °C (–40 to 2,012 °F)
• Static Pressure Range: Up to 75 bar (depending on process connection)
• Degree of Protection: Up to IP68

Feed Water

See the official PDF for exact tabulated values regarding permitted flow velocity.

Product Water

N/A

Electrical

• Head Transmitter Outputs and Protocols:
  • Analog output 4 to 20 mA
  • HART®
  • PROFIBUS® PA
  • FOUNDATION Fieldbus™

Mechanical / Hydraulic

• Thermometer Design: Modular design with standard terminal heads as per DIN EN 50446.
• Process Connection:
  • Thread NPT ½", NPT ¾": Max. 75 bar
  • Compression fitting (metal clamping ring): 40 bar
  • Compression fitting (PTFE clamping ring): 5 bar
• Materials:
  • AISI 316/1.4401, AISI 316L/1.4404, 1.4435: Max. 650 °C (1,202 °F) continuous use
  • Alloy 600/2.4816: Max. 1,100 °C (2,012 °F) continuous use

Performance Characteristics

• Operating Conditions - Ambient Temperature Range:
  • Terminal head (without mounted head transmitter): Depends on terminal head and cable gland/fieldbus connector.
  • With mounted head transmitter: –40 to 85 °C (–40 to 185 °F)
  • With mounted head transmitter and display: –20 to 70 °C (–4 to 158 °F)
• Shock and Vibration Resistance:
  • RTD: Exceeds IEC 60751 requirements (3 g from 10 to 500 Hz).
    • iTHERM StrongSens Pt100 (TF, vibration-resistant): 600 m/s² (60 g)
    • Thin-film sensor (TF): >4 g
    • Wire wound sensor (WW): >3 g
  • Thermocouple TC: 4G / 2 to 150 Hz as per IEC 60068-2-6
• Accuracy:
  • RTD Resistance Thermometer (as per IEC 60751):
    • Class A: ± (0.15 + 0.002 · |t| °C)
    • Class AA: ± (0.1 + 0.0017 · |t| °C)
    • Class B: ± (0.3 + 0.005 · |t| °C)
    • Tolerance Class Temperature Ranges:
      • Wire wound sensor (WW): Cl. A (–100 to +450 °C), Cl. AA (–50 to +250 °C)
      • Thin-film version (TF): Standard Cl. A (–30 to +300 °C), Cl. AA (0 to +150 °C); iTHERM StrongSens Cl. A (–30 to +300 °C), Cl. AA (0 to +150 °C)
  • Thermocouples (as per IEC 60584 / ASTM E230/ANSI MC96.1): Standard and Special tolerance classes available. See the official PDF for detailed deviation limits.
• Response Time (insert without transmitter, ambient ~23 °C in running water):
  • Resistance Thermometer (Pt100, TF/WW):
    • 6 mm diameter: t50 3.5 s, t90 8 s (Conical tip); t50 2 s, t90 5 s (Straight tip)
    • 3 mm diameter: t50 2 s, t90 5 s (Conical tip); t50 1 s, t90 2.5 s (Straight tip)
  • Thermocouple (not grounded):
    • 6 mm diameter: t50 2.5 s, t90 7 s
    • 3 mm diameter: t50 1 s, t90 2.5 s
  • Thermocouple (grounded):
    • 6 mm diameter: t50 2 s, t90 5 s
    • 3 mm diameter: t50 0.8 s, t90 2 s
• Insulation Resistance: ≥ 100 MΩ at ambient temperature.
• Self-heating: Negligible when an Endress+Hauser iTEMP temperature transmitter is connected.
• Calibration: Comparison temperature calibration from –80 to +1,400 °C (–110 to +2,552 °F) based on ITS90, traceable to national/international standards.

Installation Conditions

• Orientation: No restrictions.
• Minimum Immersion Depth (Error ≤0.1 K):
  • Thin-film sensor (TF), iTHERM StrongSens (6 mm): ≥ 40 mm
  • Thin-film sensor (TF) (3 mm): ≥ 30 mm
  • Thin-film sensor (TF) (6 mm): ≥ 50 mm
  • Wire wound sensor (WW) (3 mm): ≥ 30 mm
  • Wire wound sensor (WW) (6 mm): ≥ 60 mm

Certificates and Approvals

• CE mark
• Hazardous area approvals (ATEX, CSA, FM etc. - refer to specific Ex documentation)

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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)

Lenntech datasheet mirror