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The IF-C Optical Fiber Temperature Measuring Transmitter is an industrial-grade sensing device developed by Liyi Technology, leveraging fiber optic sensing technology to achieve non-contact, high-precision temperature monitoring. It features electromagnetic interference (EMI) immunity and explosion-proof design, making it suitable for high-voltage, hazardous, and complex industrial environments. With a lifespan of over 10 years and digital signal output, it integrates seamlessly into existing monitoring systems, providing reliable data for process control and safety compliance.

Non-Invasive Temperature Sensing: The probe adheres to the measured object’s surface, enabling non-contact measurement without interfering with the target’s temperature field.
Strong EMI Immunity: Resists electromagnetic interference from industrial equipment (e.g., motors, transformers), ensuring accurate readings in complex electrical environments.
High-Voltage Insulation & Explosion-Proof: Complies with industrial safety standards, adapting to hazardous areas (e.g., chemical plants, oil refineries) and high-voltage scenarios.
Wide Temperature Measurement Range: Accurately measures temperatures up to 1000℃, meeting the needs of high-temperature industrial processes.
Flexible Channel Configuration: Offers 1-16 optional temperature-measuring channels, supporting multi-point monitoring for large-scale equipment.
Simplified Configuration: Uses DIP switch configuration for communication address setting, eliminating the need for complex programming and reducing setup time.

The IF-C’s parameters focus on measurement accuracy, communication compatibility, and structural durability, ensuring stable performance in harsh industrial conditions.
Parameter Category | Specification |
Product Model | IF-C Optical Fiber Temperature Measuring Transmitter |
Working Power Supply | AC220V |
Number of Temperature Channels | 1-16 channels (optional) |
Communication Method | RS485 communication, Modbus protocol |
Fiber Optic Connector | ST connector |
Transmitter Dimensions (L×W×H) | 145×54×100mm |
Output Signals | 2 switching output signals |
Temperature Measurement Range | Up to 1000℃ |
Expected Lifespan | Over 10 years (with proper maintenance) |
Industrial Manufacturing Processes: Monitors temperature in metal smelting, plastic molding, and chemical reactions to ensure process stability and product quality.
High-Voltage Electrical Equipment: Measures temperature of power transformers, GIS cabinets, and cable joints to prevent overheating-induced failures.
Environmental Monitoring: Tracks temperature in laboratories, meteorological stations, and storage facilities (e.g., pharmaceutical warehouses) for regulatory compliance.
Energy Management Systems: Monitors temperature of solar panels, wind turbine generators, and thermal pipelines to optimize energy efficiency and reduce losses.
R&D Projects: Provides high-precision temperature data for material science, aerospace, and biomedical research, supporting experimental accuracy.
Determine Channel Quantity: Select 1-16 channels based on the number of monitoring points (e.g., 4 channels for a small-scale transformer).
Confirm Environmental Safety: Choose the IF-C if the application involves high voltage or hazardous areas (verify explosion-proof certification for extreme scenarios).
Check Communication Compatibility: Ensure the existing system supports RS485/Modbus protocol for seamless data integration.
Evaluate Temperature Range: Confirm the target temperature (up to 1000℃) matches the transmitter’s measurement capability.
Probe Installation: Clean the measured object’s surface, then adhere the fiber optic probe firmly to it—avoid gaps to prevent measurement errors.
Communication Setup: Use the DIP switches on the transmitter to set the communication address (e.g., Address 1 for the first device in the network), then connect the RS485 cable to the upper monitoring system.
Power Connection: Connect the transmitter to an AC220V power supply; check the LED indicator to confirm normal operation (green light = running, red light = fault).
Routine Maintenance: Inspect the fiber optic connector (ST type) monthly for dust or damage; clean it with a lint-free cloth if needed. Calibrate the transmitter annually to maintain measurement accuracy.
Fault Handling: If the red fault light is on, check the power supply, probe connection, or RS485 cable—refer to the manual for specific error solutions.
