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12-1
Rosemount Tank Radar REX
Chapter 12 Sensor Installation
Installation Manual
308014EN, Edition 4
May 2013
12. Sensor Installation
The TankRadar REX system includes various integrated equipment such 
as temperature sensors and Water Level Sensors. 
12.1 Temperature Sensors
Up to six temperature sensors can be connected to a REX Radar 
Transmitter Gauge (RTG). By using a Data Acquisition Unit (DAU) a 
maximum of 14 temperature sensors can be used in a tank.
Figure 12-1. Up to six temperature elements can be connected 
to a REX gauge.
The Multiple Spot Thermometer (MST) measures the temperature with a 
number of Pt 100 elements placed at different heights to provide a 
temperature profile and an average temperature. The spot elements are 
placed in a flexible gas tight tube made of stainless steel which can be 
anchored to the tank bottom.
Tempspots_REX.eps/T
empspots_DAU.eps
Multiple Spot 
Thermometer
REX RTG
Anchor weight
©
DAU
Multiple Spot 
Thermometer
Anchor weight