INNO fibre optic temperature sensors ,temperature monitoring systems.
The 6-channel fluorescent fiber optic temperature measurement system represents advanced monitoring technology specifically engineered for electrical power equipment applications. This fiber optic monitoring solution employs fluorescent lifetime demodulation technology to convert optical signals into precise temperature measurements, enabling reliable monitoring in harsh electromagnetic environments including high-voltage switchgear, transformer windings, cable joints, and circuit breaker contacts.
Our fiber optic temperature sensors provide complete immunity to electromagnetic interference, electrical isolation exceeding 100kV, and intrinsically safe operation in power distribution environments where conventional sensors fail. The modular architecture supports both standalone operation and networked expansion for applications ranging from small distribution rooms to large-scale substations.
6-Channel Fiber Optic Temperature Measurement System
Technical Specifications
| Temperature Range | -40°C to +240°C |
| Measurement Accuracy | ±1.0°C (±0.5°C available) |
| Resolution | 0.1°C |
| Channel Count | 6 optical sensors |
| Response Time | ≤5 seconds |
| Fiber Length | 5m standard (customizable) |
| Voltage Isolation | 100kV dielectric strength |
| Communication | RS485 Modbus-RTU |
| Power Supply | AC/DC 220V |
| Dimensions | 136×76×46mm |
Fiber Optic Temperature Sensor Probe Construction
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The fiber optic temperature sensor consists of three integrated components: ST connector interface for transmitter coupling, quartz optical fiber with PTFE protective sheath, and rare-earth fluorescent sensing tip. The PTFE jacket provides chemical resistance, 100kV dielectric strength, and mechanical durability for harsh power equipment environments.
System Features
EMI Immunity
Complete resistance to electromagnetic interference in high-voltage switchgear and transformer environments
Dual RS485 Ports
Simultaneous local display and SCADA system connectivity without additional hardware
Dual-Level Alarms
Independent relay outputs for early warning (80°C) and critical protection (120°C) thresholds
DIP Switch Configuration
Simple network addressing and parameter setup without software tools
Fiber Optic Monitoring Applications
Switchgear Temperature Monitoring
Busbar contacts, circuit breaker terminals, cable joints, and moving contact monitoring in MV/LV switchgear
Transformer Winding Monitoring
Hotspot detection in oil-immersed and dry-type transformer windings for thermal protection
Dry-Type Transformer Systems
Winding temperature measurement for data center and industrial dry-type transformers
Generator Stator Monitoring
Rotating machinery winding and bearing temperature measurement in power generation
Cable Joint Temperature Measurement
Ring main unit cable terminations and high-current busbar connection monitoring
Industrial Process Control
Manufacturing equipment and automated production line temperature monitoring
Medical Equipment Monitoring
MRI-compatible temperature measurement and hyperthermia therapy monitoring
Semiconductor Manufacturing
IGBT modules, chip etching equipment, and CVD chamber temperature control
Microwave & RF Systems
High-frequency equipment monitoring immune to microwave electromagnetic interference
Data Center Infrastructure
UPS systems, power distribution units, and transformer thermal management
Laboratory & Research
NMR systems, electron beam equipment, and experimental apparatus monitoring
Large-Scale Installations
Multi-channel expandable systems for substations and complex power distribution networks
Fiber Optic Temperature Sensors vs Traditional Technologies
| Feature | Fiber Optic Sensors | PT100/Thermocouple | Wireless Sensors |
|---|---|---|---|
| EMI Immunity | Complete | Requires shielding | Susceptible |
| Voltage Isolation | 100kV+ | Limited | N/A |
| Intrinsic Safety | Yes (passive) | No | No |
| Maintenance | None required | Cable inspection | Battery replacement |
| Service Life | 15+ years | 5-10 years | 2-3 years |
| Accuracy | ±0.5-1.0°C | ±0.5-1.0°C | ±1.0°C |
Fiber Optic Thermometer System Integration
Communication Interfaces
The fiber optic temperature measurement system provides dual RS485 ports supporting Modbus-RTU protocol for seamless integration with SCADA systems, PLCs, and building management platforms. Baud rates from 1200 to 115200 bps enable flexible network configuration. Optional 4-20mA analog outputs (up to 6 channels) provide compatibility with traditional control systems and data loggers.
Alarm Configuration
Dual independent alarm thresholds per channel: Level I (default 80°C) for early warning with 3°C hysteresis, and Level II (default 120°C) for critical protection. Each level provides Form-C relay contacts rated 5A at 250VAC for direct connection to emergency shutdown systems, cooling controls, or alarm annunciators.
Display Options
Compatible with IF-YS10F LCD display instrument featuring 480×272 pixel TFT touchscreen, 12-channel visualization, temperature trend logging, and customizable alarm threshold configuration. The display mounts directly on switchgear doors or control panels for local monitoring.
Contact Our Engineering Team
For application consultation, custom configuration, or technical support with your fiber optic temperature monitoring requirements, our experienced team provides comprehensive system design, installation guidance, and ongoing support.
