Description
Temperature-Resistant Full Immersion PRT with High Moisture Resistance.
The eXacal immersion thermometers (platinum resistance thermometers) are temperature sensors made for extreme environments. They need to handle both the transition junction and the wires being exposed to temperatures across the sensor’s entire temperature range. These immersion thermometers can be used in different settings, like calibrating sensors in laboratory coolers, autoclaves, ovens, stability test chambers, and incubators. They are 70 mm long and 4 mm in diameter. You can fully immerse them in liquids or dry materials from -50 °C to 200 °C. The immersion thermometer, with a standard resistance of 100 Ohms, is designed to keep water and moisture out. It can achieve measurement uncertainties of up to 6 mK with a DAkkS calibration.
DAkkS calibration at fixed temperature points
Immersion thermometers can be calibrated in our own DAkkS calibration laboratory in accordance with DIN EN ISO/IEC 17025. DAkkS accreditation ensures that all calibrations are traceable to national and international standards.
The immersion thermometers have been designed in such a way that they can be calibrated very well at fixed temperature points. This is possible because the transition point has such a small diameter that it can be inserted into the temperature fixed points. The measurement uncertainty is calculated from many components. The largest factors in the measurement uncertainty balance are the reproducibility of the thermometer, ITS-90 deviation function, self-heating and hysteresis of the temperature sensor. With the parameters from the calibration certificate, the immersion thermometer can be used with the respective deviation function in the temperature range from -38 °C to 156 °C.
