22
Reference Manual
00809-0100-2240, Rev DA
October 2017
3.3
Multiple Spot Temperature sensor
A Multiple Spot Temperature sensor (MST) typically measures the temperature with a number of Pt100
elements placed at different heights to provide a temperature profile and average temperature of the
product. The spot elements are placed in a flexible gas tight tube made of stainless steel which can be
anchored to the tank bottom, see
“Installing a temperature sensor tube” on page 26
Up to 16 Pt100 temperature elements can be connected to a Rosemount 2240S Multi-input
Temperature Transmitter.
3.3.1
Installation on fixed roof tanks
On fixed roof tanks the MST is attached to a flange mounted on a suitable nozzle.
Figure 3-1. Installation of multiple spot temperature elements on fixed roof tanks
Maximum product level
Min. 1 m (3.3 ft)
Upper spot
element
First spot
element
2.5-15 kg
(5.5-33 lbs)
85-330 mm
(33-130 in.)
Anchor weight
Min. 1 m (3.3 ft)
Summary of Contents for Rosemount 2240S
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Page 10: ...viii Reference Manual 00809 0100 2240 Rev DA Title Page October 2017 Title Page ...
Page 16: ...6 Reference Manual 00809 0100 2240 Rev DA Introduction October 2017 Introduction ...
Page 28: ...18 Reference Manual 00809 0100 2240 Rev DA Overview October 2017 Overview ...
Page 192: ...182 Reference Manual 00809 0100 2240 Rev DA Index October 2017 Index ...
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