The T840 is a rugged high-accuracy single-mode (SM) fiber-based Fiber Bragg Grating (FBG) Absolute Temperature Sensor for use in harsh environments from -40°C to +150°C.
Available in a wide range of optical specifications. Packaged to eliminate strain and other influences from the ambient environment. The T840 sensor is the T830 packaged in various rugged skins and terminated with 3mm armored cables. The T840 is ready for surface mounting on flat or curved surfaces, or for embedding into concrete and other materials. Exhibiting excellent wavelength to temperature stability. Individual calibration certificates available upon request. The full-scale (FS) accuracy and precision specifications take into account any hysteresis, non- linearities, and the repeatability of the sensor. The T840 installation is fast, easy and intuitive. Delivers the advantages inherent to FBG sensors. Immune to EMI.
T840 series Temperature Sensors are fabricated using licensed and proprietary state-of-the-art laser manufacturing technologies and thermal designs. The sensor packaging described herein represents the most popular configuration and can be customized. The precision made FBG written into the fibers’ core for producing the T840 and our state-of-the-art sensor packaging technology yields a simple transducer configuration of high resolution, high-accuracy and repeatability. Available as single point sensor or can be multiplexed in-line with many other same or different type sensors. Well suited for projects that include the need to monitor temperature at key discrete locations, or can be provided in custom made arrays. The T840 is ideal for demanding projects that require both low-cost per temperature sensing point and stable operation over the long-term.