
Recommended actions
1. Verify ambient temperature is within the operating range.
2. Insulate device.
Related information
7.2.11
Primary supply voltage over-run – Check tolerance
Alarm classification
Device status
Out of specification
Class
Warning
Possible cause
Supply voltage is too high.
Recommended actions
Verify voltage is 18-30 Vdc at the transmitter terminal.
7.2.12
Primary supply voltage under-run – Check tolerance
Alarm classification
Device status
Out of specification
Class
Warning
Possible cause
Supply voltage is too low.
Recommended actions
Verify voltage is 18-30 Vdc at the transmitter terminal.
7.2.13
Maintenance required - Cleaning
Alarm classification
Device status
Maintenance required - Cleaning
Class
Notification
Possible cause
Product build-up on the antenna.
Recommended actions
Clean the antenna.
Service and troubleshooting
Reference Manual
September 2020
00809-0100-4480
50
Rosemount 1408H Level Transmitter