Rosemount 2240S, Справочное руководство, Страница: 47 / 100

Reference Manual
300550EN, Rev AA
December 2010
5-5
Rosemount 2240S
Section 5. Configuration/Operation
Insert Distance
You can specify a minimum distance between the product surface and the first
temperature spot element to be included in the average temperature
calculation. If the temperature spot element is within or above the Insert
Distance, the element will be excluded from the calculation.
Figure 5-2. Insert distance
This function may be useful if the temperature of the atmosphere above the
product surface significantly deviates from the temperature of the product
itself, resulting in large temperature gradients close to the product surface. By
specifying an Insert Distance, temperature elements within this region can be
excluded from average temperature calculations.
This function can also be used to compensate for inaccuracies in the
measured temperature element positions, in order to make sure that elements
above the product surface are not included in the average temperature
calculation. If, for example, the positions of the temperature elements are
measured with an accuracy of 10 mm, setting the minimum distance to at
least 10 mm will guarantee that sensors above the surface are not included in
the average temperature calculations.
Insert Distance
These sensors are
not included in the
average temperature
calculation
Product surface