User Manual

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10 Chapter 2
Installation
Guidelines Concerning iTLM-1 Mounting
The iTLM-1 uses Ultrasonic Sensing Technology to provide tank fluid level
measurements. The sensor projects an ultrasonic beam at the surface of the liquid
in a tank. The beam reflects off the liquid’s surface back to the sensor. The
iTLM-1 acquires the raw measurement and then compensates for the effects of
temperature on the raw data. To properly measure the fluid level in the tank,
the sensor must be mounted such that the path of the ultrasonic beam is
perpendicular to the fluid surface. A mounting angle greater than 5 degrees may
cause erroneous data. Figure 2-2 below provides a rendering of a properly
installed iTLM-1 sensor module.
Figure 2-2. Proper Mounting Angle for the i TLM-1 Sensor