• Measuring range from -200°C to +300°C with high accuracy of +/-0.2°C.
• Equipped with a status LED and a robust, durable case.
• Supports RS-232, RS485, Modbus, or Profibus interfaces.
• Offers a choice between 0-10V or 4-20mA analog output.
• Includes 1-8 relay outputs that can be freely assigned to any channel.
• Features a height-adjustable DIN-Rail-Clip for easy installation.

• Monitoring hot spots in high voltage transformers, power factor correction capacitors, and alternators.
• Temperature measurement on high voltage distribution power lines, such as those for electric trains.
• Temperature measurement in gas-insulated switchgear, power breakers, and power factor adjustment capacitors.

The FOTEMPTrafo is an 8-channel fiber optic thermometer designed for precise temperature monitoring in transformers. It uses gallium arsenide (GaAs) technology, eliminating the need for recalibration over its lifetime. The device supports multiple communication interfaces, ensuring optimal connectivity, and offers fast measurement speeds of 250ms per channel. The sensors are non-conductive and immune to RF and microwave radiation, making them suitable for harsh environments.

• Number of channels: 1-8
• Power supply: 24VDC
• Accuracy: +/-0.2°C
• Resolution: 0.1°C
• Sampling rate per channel: 250ms
• Analog output: 0-10V or 4-20mA
• Interfaces: RS-232, USB, Profibus, Modbus, galvanic isolated RS-485
• Protection: IP54
• Operating temperature: -20°C to +60°C
• Dimensions: 240 x 180 x 75 mm
• Material: Aluminium casting RAL 9003
• Software: FOTEMP-Assistant
• Warranty: 2 years

The device is compatible with all fiber optic temperature probes from Optocon AG and includes data logging capabilities via software. It does not have a display but allows data export through interfaces.