The compact Bench Top FOTEMP-PLUS is a 1-4 channel fiber optic thermometer suitable for the end user or oem applications. Together with the TS series fiber optic temperature sensors, the FOTEMP-PLUS thermometer system is the ideal solution for monitoring temperature in microwave, high frequency, high voltage, magnetic or aggressive environments where metal temperature sensors (RTC, TC, etc.) are either inaccurate, slow or hazardous.
The measurement principle is based on the inherent optical properties of gallium arsenide (GaAs) with temperature. The TS series fiber optic temperature probes are true absolute temperature sensors consisting of a gallium arsenide (GaAs) crystal that is mounted on the end of an optical fiber. The diagram above illustrates how the fiber optic temperature measurement system works. A broadband light source is coupled into the fiber and impinges on the crystal. GaAs behaves like a temperature sensitive cut-off filter in which the crystal absorbs some light and transmits other light. The characteristic edge, or transition wavelength, between the reflected and transmitted spectrum is directly related to the band gap energy, and hence the absolute temperature.
The TS series sensors are offered in different configurations optimized for a a particular operating environment or application – food, process industries, microwave, harsh chemical, semiconductor, and medical.
The fiber optic thermometer FOTEMP-PLUS is available with 1, 2 or 4 measurement channels. With a built-in USB interface as standard, the product offers a second interface option of RS232 or RS485/Modbus RTU. Other FOTEMP models offer Ethernet/ModbusTCP interface option.
There is also a choice of voltage or current analog outputs. Real-time data collection is accomplished with the supplied FOTEMP-ASSISTANT graphical display/data logging software. An update rate of 250ms per active channel allows for fast response.
The software will also recognize multiple FOTEMP units connected to a single PC via their unique USB Virtual Com Port (VCP) assignments - providing an effective multi-multi-channel measurement capability, i.e. two FOTEMP4-PLUS units appear as an 8-channel measurement system.
Micronor Sensors offers the 4-Channel FOTEMP4-PLUS-P0-V-B is available in stock for purchase or rent. A standard range of TS sensors (TS2, TS2p, TS3, TS4, TS5) provide an complete off-the-shelf solution that can be quickly delivered to enable your temperature measurement needs.