Users Manual Part 1

Note

The surface echo is required to suppress the double bounce. If the surface echo enters the

Upper Null Zone, there is no product surface reference and the double bounce might be

interpreted as the surface echo.

The Double Bounce Handling function is only available in Rosemount Radar Master Plus.

Procedure

Read the echo curve plot to determine if double bounce echoes are present.

2. Select Configure → Level Setup → Advanced.

3. Under More Advanced Options, select Echo Tracking.

4. In the Double Bounce Handling list, select Enabled or Disabled.

5. If you enabled Double Bounce Handling, then enter desired Double Bounce Offset.

6. Select Save.

Related information

Read the echo curve

Double bounce offset

The distance between each double bounce echo is constant. The Double Bounce Offset is

used to define the distance between detected double bounces, as given by the following

formula (see Figure 7-25):

Double Bounce Offset = B - 2A

The Double Bounce Offset is negative if the reflection point (normally the tank roof) is

below the Tank Reference Point.

7.6 Service support

To expedite the return process, refer to Emerson.com and contact the nearest Emerson

representative.

CAUTION

Individuals who handle products exposed to a hazardous substance can avoid injury if they

are informed of and understand the hazard. Returned products must include a copy of the

required Safety Data Sheet (SDS) for each substance.

Emerson representatives will explain the additional information and procedures necessary

to return goods exposed to hazardous substances.

Reference Manual Service and troubleshooting

00809-0100-4418

September 2022

Rosemount 3408 Level Transmitter 103