The 9909 Averaging Temperature Sensor (ATS) is a multiple element resistance temperature device designed to provide the average product temperature in large bulk liquid storage tanks.
The 9909 ATS assembly hangs vertically in the product
from the roof of the tank. Each element measures resistance
as it varies with the change in product temperature. The longest totally submerged
element gives the best average temperature and is selected by the connected
temperature transmitter or convertor. As the
temperature transmitter needs to know the product level in order to select the correct
element, Varec recommends the 9909 ATS as one part of an overall inventory management system. |