TSENS-K

Fiber Optic Temperature Sensor

Accurate Monitoring Designed to Outlast Transformers

Transformers depend on accurate temperature data to mitigate aging caused by thermal stress and insulation degradation. The Kevlar-reinforced TSENS-K offers a durable and easy-to-install design, ensuring long-term temperature monitoring. It provides manufacturers and operators with reliable data critical for accurate transformer aging evaluation, proactive maintenance, and consistent performance.

Features
  • Easy installation.
  • Rugged and robust design.
  • Zero-drift GaAs technology.
  • Compact 9 mm disc design.
  • Resistant to solvents and chemicals.
  • Kevlar reinforcement along the entire probe length.
Benefits
  • No calibration required.
  • Exceptional stability with no shift over time.
  • Durable construction with double PFA Teflon reinforcement.
  • Versatile design, available with or without a disc.
  • Meets and exceeds ASTM D2413 and D149 standards.
  • Designed for long-term reliability.
Applications
  • Oil-filled and dry-type transformers.
  • Suitable for high-voltage environments (1 MV or more).
  • Ideal for HVDC windings.
  • Mountable in standard radial spacers.
  • Compatible with Rugged Monitoring instruments.
Technical specifications
Temperature range

-200 °C to +250 °C

Repeatability

0.2 °C

Accuracy absolute temperature

+/- 0.8 °C

Accuracy relative temperature

+/- 0.2 °C

Probe sheathing material

Teflon spiral-wrap with Kevlar

Tip material

Torlon (with disc) or Polyimide (no disc)

Connector

Stainless alloy ST with zirconia ferrule
(Optional: Dielectric Torlon ST with zirconia ferrule)

Probe length

Up to 25 meters

Response time

Up to 0.2 sec without disc. About 2 sec with disc

Longevity

Probe accuracy and repeatability constant over time

Ordering Code
Product Drawing
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