Emerson Rosemount 3490 Series Reference Manual page 54

Getting started
January 2021
4.4.2 Application wizard
Use the Application Wizard (App Wizard) to easily set-up the control unit for an
application.
If a message appears saying that the units are not set, it is because the HART transmitter
has not been found by the control unit when power was applied. Change the operating
mode from Program to Run App mode and the control unit will attempt to re-connect to
the transmitter.
Note
When using a Rosemount 3492 Differential Control Unit, it is necessary to select
Difference, Sum, Product, or Independent (and channel) before Level/Volume/Flow can be
selected.
Level and volume measurement duties are not available on the Rosemount 3493 Logging
Control Unit.
Related information
Using the App Wizard to set-up a level application
Using the App Wizard to set-up a contents volume application
Using the App Wizard to set-up a flow application
Using the App Wizard to set-up a level application
Inputs:
• Level measurement in feet from transmitter.
• Transmitter Bottom Reference is 22 ft.
• Sump/lift station working level is 20 ft.
• 2-pump operation required is duty assist with common off.
• Auto-sequencing after 4 starts.
Outputs:
• Level in feet.
• Relay 1 (Pump 1) on at 5 ft.; off at 1 ft.
• Relay 2 (Pump 2) on at 8 ft.; off at 1 ft.
• Relay 3 (High Alarm) on at 12 ft.; off at 11 ft.
54
Reference Manual
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