Emerson Rosemount 326L, Quick Start Manual

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• Highly absorbing surfaces (foam)
• Intensely bubbling surfaces
• Media which are very inhomogeneous, separate from each other thus forming
separation layers (oil layer on water)
To prevent this, follow these guidelines:
• Check the function by performing an application test.
• Install the level transmitter in a steady environment.
In case of signal loss, the level transmitter displays SEnS and switches the outputs to a
defined state. See
Output response in different operating states for more information.
The level transmitter is not suitable for:
• Bulk materials like plastic granulates and media with a very low dielectric constant like
oils.
• Applications where the probe is subjected to permanent and high mechanical stress.
For example, fast moving viscous medium or fast flowing medium.
Use the level transmitter preferably with metal tanks. When used with plastic tanks,
deterioration caused by electromagnetic interference might occur (noise immunity to
EN61000-6-2).
1.3 Measuring principle
The level transmitter uses guided wave radar to measure media level. It emits
electromagnetic pulses every nanosecond to measure the level.
Figure 1-1: Transmitting Pulses
Introduction Quick Start Guide
January 2019 00825-0100-4326
6 Quick Start Guide