Critical Technical Advantages
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Targeted for Existing Infrastructure: The T15 is the ideal choice for maintenance and upgrade projects where the original thermowell is still in good condition but the sensor or transmitter needs replacement. This saves the cost and effort of removing the protective well from the process.
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Maximum Safety for Hazardous Zones: With FM and CSA XP Class I, Div. 1 approvals, the T15 is designed to operate safely in areas where flammable gases or vapors are present. The robust connection head is built to contain any internal ignition.
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Simplified Procurement: By consolidating the sensor, terminal head, and transmitter into a single model number, the T15 provides a “one-stop” solution. This ensures all internal components are compatible and simplifies the logistics of ordering spare parts.
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High-Performance Electronics: When equipped with an iTEMP head transmitter, the T15 offers 2 kV galvanic isolation and exceptional long-term stability of $\le$0.05% per year. This ensures the digital signal remains accurate over long cable runs and reduces the frequency of manual verification.
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Material Flexibility: The probe sheath can be specified in various materials, such as 316L Stainless Steel or Hastelloy C276, to ensure compatibility with the existing thermowell’s internal atmosphere and any potential condensation or chemical exposure.
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Rapid Field Installation: The “straight out of the box” design allows technicians to remove the old sensor and install the T15 immediately, minimizing the time spent in hazardous areas during maintenance cycles.
Technical Performance Matrix
| Feature | Details |
| Sensor Type | Pt100 RTD (Insulated element and sheath) |
| Approval | FM/CSA XP Class I, Div. 1 (Explosion Proof) |
| Installation Type | Designed for use in existing thermowells |
| Galvanic Isolation | 2 kV (on most transmitter models) |
| Annual Stability | $\le$0.05% (iTEMP Transmitters) |
| Communication | 4-20mA, HART, PROFIBUS PA, FOUNDATION Fieldbus |
| Industry Standard | US Style (North American specifications) |
Primary Applications
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Refinery Maintenance: Upgrading aging temperature points in distillation columns or heat exchangers where thermowells are already welded in place.
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Offshore Platform Retrofits: Replacing sensors in corrosive marine environments without needing to specify a new thermowell.
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Petrochemical Upgrades: Converting older, directly-wired sensors to modern HART or Fieldbus transmitters for better data integration.
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Chemical Plant Turnarounds: Fast replacement of multiple temperature points during scheduled shutdowns to ensure maximum plant availability.
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Power Utility Maintenance: Updating sensors in high-pressure steam lines where the existing heavy-duty thermowells are retained.
