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Fiber optic temperature measurement cable specifications

Fiber optic temperature measurement cable specifications

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Fiber optic temperature measurement cables provide precise, real-time temperature monitoring across diverse environments, with models offering varying channels, temperature ranges, accuracy, and ruggedness for industrial, power, and research applications.

COMEM TECCA DE Fiber Optic Systems

COMEM offers a range of fiber optic temperature measurement devices suitable for harsh environments, biomedical applications, and industrial monitoring. Key models include FOTEMP MN30, HD20, MS10, C15, C20, T20, and T30. Specifications include:

  • Channels: 1–16 depending on model
  • Temperature range: -200°C to 300°C
  • Accuracy: ±0.2 K for most models; ±1 K for T20 and T30
  • Sample rate: 250 ms per channel
  • Display: Optional LCD or OLED screens
  • Interfaces: TTL, RS232, RS485, USB, Ethernet; protocols include ASCII, Modbus RTU, DNP3.0, IEC61850
  • Fiber diameter: 200–240 µm with polyimide, PTFE, or Nomex® coatings
  • Thermal response: 3–20 K/s depending on probe type
  • Mounting: DIN rail, cabinet, or standard brackets
  • Calibration: Long-term stability; recalibration rarely needed, but available if using different fibers Applications include transformers, MRI environments, industrial food processing, aerospace, nuclear, and semiconductor monitoring.

Neoptix T/Guard+ System

The T/Guard+™ system is designed for high-voltage transformer hot spot monitoring:

  • Channels: 1–16
  • Resolution: 0.1°C
  • Accuracy: ±1°C or 1% full scale
  • Response time: 250 ms (probe dependent)
  • Operating temperature: -40 to 65°C; storage -40 to 70°C
  • Probes: T2™ fiber-optic probes, dielectric materials, oil-immersible, vibration-resistant
  • Communication: RS-232, OPC Server, CANopen, MODBUS, optional TCP/IP
  • Data logging: Optional SD card up to 1 GB
  • Enclosure: NEMA-4 or powder-coated steel
  • Calibration: No recalibration required over lifespan; MTBF > 25 years This system provides rapid, accurate temperature readings, outperforming traditional thermocouples in transformer monitoring.

AP Sensing Fiber Optic Sensor Cables

AP Sensing provides specialty fiber optic sensor cables for distributed temperature and acoustic sensing:

  • Construction: Core, cladding, and coating; coatings include polyacrylate (standard), polyimide, or metal for high-temperature/cryogenic use
  • Configurations: Metal-tubing, metal-free, tube-in-tube, armored stainless steel
  • Applications: Power grids, pipelines, tunnels, industrial facilities, oil and gas wells, environmental monitoring
  • Features: Real-time monitoring, detection of hotspots, leaks, third-party intrusions, and structural changes
  • Advantages: High tensile strength, crush resistance, chemical and abrasion resistance, rodent protection, and fast thermal response

Roctest DiTemp Ordinary Temperature Sensing Cable

The DiTemp cable is designed for distributed temperature sensing over long distances:

  • Fiber: 4 fibers with dual-layer acrylate coating
  • Construction: Stainless steel loose tube, gel-filled, stainless steel strength members, PA outer sheath
  • Temperature range: Suitable for outdoor and harsh environments
  • Installation: Direct burial, concrete embedding, clamped, anchored, or glued
  • Features: High tensile strength, crush resistance, lateral water tightness, chemical and abrasion resistance, rodent protection, fast response
  • Accessories: Gland nuts (IP65), pigtails, connectors (E-2000, FC-PC, or custom),

Summary

Fiber optic temperature measurement cables vary by model, channel count, temperature range, accuracy, response time, and environmental ruggedness. COMEM TECCA DE systems are versatile for industrial and biomedical applications, Neoptix T/Guard+ excels in transformer monitoring, AP Sensing cables are ideal for distributed sensing in critical infrastructure, and Roctest DiTemp cables provide robust, long-distance temperature monitoring. Selection depends on application requirements, environmental conditions, and desired measurement precision.

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