Table 5-2: Transmitter Troubleshooting (continued)
Symptom Corrective actions
Digital Variable output
is low or high
Check test equipment (verify accuracy).
Check impulse piping for blockage or low fill in wet leg.
Verify transmitter sensor trim.
Verify measured variables are within transmitter limits.
Digital Variable output
is erratic
Check application for faulty equipment in process line.
Verify transmitter is not reacting directly to equipment turning on/off.
Verify damping is set properly for application.
Milliamp output is
erratic
Verify power source to transmitter has adequate voltage and current.
Check for external electrical interference.
Verify transmitter is properly grounded.
Verify shield for twisted pair is only grounded at one end.
Transmitter output is
normal, but LCD
display is off and
diagnostics indicate an
LCD display problem
Verify LCD display is installed correctly.
Replace LCD display.
Transmitter indicating
a flow value and/or DP
value during no flow
condition
Zero DP sensor
Verify DP Low Flow Cutoff setting.
5.3 Measurement quality and limit status
The Rosemount 3051SMV is compliant with the HART Revision 6 Standard. One of the
most noticeable enhancements available with the HART 6 standard is that each variable
has a measurement quality and limit status. These statuses can be viewed in AMS Device
Manager, on a Field Communicator, or with any HART 6 compatible host system. In AMS
Device Manager, variable statuses can be viewed by selecting Variables in the upper left
menu tree under the Configure/Setup heading.
Reference Manual Troubleshooting
00809-0100-4803 October 2018
Emerson.com/Rosemount 135
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