High temperatures don’t contaminate sensor

American Fork, Ut.—Enclosing sensing element in two sheaths, one Inconel and one platinum, eliminates contamination effects at high temperatures in Model 5699 resistance thermometer. After one year of normal use even at temperatures up to 660 °C, stability is within 0.01 °C with 0.003 °C being typical. The unit meets resistance ratio requirements of the ITS-90. A fifth wire for grounding is added to the four-wire sensor to limit electrical noise, particularly for ac measurements. Calibrations by comparison method or fixed-point method are available covering the full range.Hart Scientific Inc.

Do you have experience and expertise with the topics mentioned in this content? You should consider contributing to our CFE Media editorial team and getting the recognition you and your company deserve. Clickhereto start this process.