RTD TST602

Summary

Product identification

• Product Name: TST602 RTD assembly
• Type: Surface sensor with connecting cable
• Document Revision: TI00213T/09/EN/13.21, Dated 2021-07-12

Application

The TST602 is an RTD assembly designed for measuring the temperature of pipe or vessel surfaces. It is typically attached using a hose clip.

• Universal use
• Easy installation without process interruption
• Suitable for pipes and surfaces

Common applications include climate control, production automation, and heat exchangers.

Operating limits

Measuring ranges

The measuring range depends on the connecting cable's material and insulation:

• PVC sheath, PVC wire: –20 to +70 °C (–4 to +158 °F)
• PTFE sheath, Silicone wire: –20 to +180 °C (–4 to +356 °F)
• PTFE sheath, PTFE wire: –20 to +200 °C (–4 to +392 °F)
• Silicone sheath, PTFE wire: –20 to +180 °C (–4 to +356 °F)

Ambient temperature range

• PVC cable insulation: –20 to +70 °C (–4 to +158 °F)
• PTFE, silicone cable insulation: –20 to +180 °C (–4 to +356 °F)
• PTFE cable insulation: –20 to +200 °C (–4 to +392 °F)

Feed water

Not applicable. This device measures surface temperature.

Product water

Not applicable. This device measures surface temperature.

Electrical

• Sensor Type: Pt100 RTD assembly conforming to IEC 60751.
• Resistance: 100 Ω at 0 °C (32 °F).
• Temperature Coefficient (α): 0.003851 °C⁻¹.
• Connection Method: Selectable 3-wire or 4-wire.
• Accuracy Classes (IEC 60751): A, AA, B.
  • 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 in °C)
• Insulation Resistance: > 100 MΩ at 25 °C (measured with ≥ 100 V DC).
• Output: Can be wired directly with flying leads or transmitted via Endress+Hauser iTEMP temperature transmitters (4 to 20 mA, HART®, PROFIBUS® PA, FOUNDATION Fieldbus™).

Mechanical / hydraulic

• Measuring Block Material: Aluminum
• Measuring Block Recess: 150° for pipe diameters from 6.4 to 102 mm (¹⁄₄ to 4 in).
• Surface Roughness (Measuring Block): Ra ≤ 1.6 µm (63 µin).
• Dimensions (Measuring Block): 50 mm (1.97 in) length, 30 mm (1.18 in) width, 22 mm (0.87 in) height.
• Weight: Typically 150 g (0.33 lb) for a 2 m (3.28 ft) cable.
• Wire/Cable Insulation Options: PVC, PTFE, Silicone.
• Degree of Protection: Not defined due to design.
• Shock and Vibration Resistance: Exceeds IEC 60751 requirements (3g from 10 to 500 Hz). TF sensors offer better vibration resistance than WW sensors.

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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