Run Verify Level; Multidrop Communication; Use With The Rosemount 333 Hart ® Tri-Loop - Emerson Rosemount 3408 Reference Manual

Reference Manual
00809-0100-4418
5.8

Run verify level

The Verify Level tool matches the product level reported by the device to a reference
measurement (for example hand-dipping with a measurement tape).
If any difference, the Calibration Offset parameter will be adjusted. A minor adjustment
using Calibration Offset is normal. There may, for example be a deviation between the
actual tank height and the configured value.
Verify Level may also be run in an empty tank. Besides the offset calibration, it includes
some setup of the signal processing such as registration of disturbance echoes.
Prerequisites
Ensure that:
• The product surface is calm.
• The tank is not being filled or emptied.
• The actual level is well above the tank bottom.
Procedure
1. Select Configure → (Guided Setup) → Verify Level.
2. Follow the on-screen instructions.
Related information
Calibration offset
5.9

Multidrop communication

Multidropping transmitters refers to the connection of several transmitters to a single
communications transmission line. Communication between the host and the
transmitters takes place digitally with the analog output of the transmitters deactivated.
5.9.1 Establish multidrop communication
In multidrop communication, each transmitter in the loop must have a unique HART
address.
Procedure
1. Select Configure → (Manual Setup) → Device Setup → HART.
2. Select Change Address (not applicable to Rosemount Radar Master Plus).
3. Enter the desired HART address.
4. Ensure that HART Multidrop is selected.
5.10 Use with the Rosemount 333 HART
To prepare the transmitter for use with a Rosemount 333 HART Tri-Loop, the transmitter
must be configured to Burst Mode and the process variable output order must be set.
Rosemount 3408 Level Transmitter
Configuration
September 2022
® ™
Tri-Loop
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