Weidmann Technologies Deutschland Gmbh products

The thermometer FOTEMP-OEM-PLUS with fiber optic sensors is ideal for the use in microwave, high frequency, high voltage and magnetic field or aggressive environments where measurement with metal temperature sensors (RTC, TC, capillary,...) is not possible. The measure principle use the change of the optical properties of a gallium arsenide crystal (GaAs) with the temperature. The FOTEMP-OEM-PLUS contains a light source, an optical analyzer and belonging electronic with interface and display. The compact device has a 2.8" coloured display for current measurement values as well as a monitoring of the sensor integrity. Standard analog output (one per channel) and serial communication port can be used for real-time data acquisition. In addition, the “FOTEMP Assistant” software is available to controll and monitor FOTEMP-OEM-PLUS directly. The communication protocol is available for own software development. 

The thermometer FT-MINI with fiber optic sensors is ideal for the use in microwave, high frequency, high voltage and magnetic field or aggressive environments, where measurement with metal temperature sensors (RTC, TC, capillary,...) is not possible. The measure principle use the change of the optical properties of a gallium arsenide crystal (GaAs) with the temperature. The FT-MINI contains a light source, an optical analyzer and belonging electronic with 3.3V-TTL-MCU interface. The communication protocol is available for software development. Depending on the measurement environment, several sensor designs are available with different ruggisation of the fiber tube and sensor tip (see specific data sheets). Customized sensors can be offered. The system consisting of device and matched probe can be calibrated to achieve an improved accuracy of less than 0.1 K. On request a back-tracing according ISO 17025 can be offered

The fiber optic temperature probe TS2 is designed for a wide range of applications, especially for the use inside of generators, power transformers as well as bus bars, R&D and industrial applications and offers immunity to RFI, EMI, NMR and microwave radiation – the best choice for a lot of challenges. The standard temperature sensor TS2 has a response time of < 2 s. With an accuracy*2 of +/- 0.2 K it allows precise and repeatable measurements. The coating of TS2 temperature sensor is made of PTFE, the fiber tip has adiameter of 1.3 mm and has a ST-connector. For mechanical stability and applications e.g. in oil special protective coatings and hoses are available. 

The fiber optic temperature probe TS2P is designed for fast measurements with direct contact to the heated element and offers immunity to RFI, EMI, NMR and microwave radiation. The standard temperature sensor TS2P has a measurement speed of up to 20 K/s. With an accuracy*2 of +/- 0.2 K it allows precise and repeatable measurements. The coating of TS2P temperature sensor is made of PTFE, the fiber tip has a quadratic edge length of 0.3 mm and has a ST-connector. For mechanical stability and applications e.g. in oil special protective coatings and hoses are available. The fiber optic probe TS2P consists of a PTFE protected glass fiber and a plain GaAs-crystal (gallium arsenide) at the sensor tip. It is totally free of metal and immune to RFI, EMI, NMR and microwave radiation – therefore TS2P probes are explicit suitable for the use in high temperature ranges (-200 °C to +300 °C) as well as in aggressive and rough test Environments.