Emerson Rosemount 3051P Reference Manual page 79

Reference Manual
00809-0700-4001
6.3.3 Transmitter milliamp reading is low or high
Recommended actions
6.3.4 Transmitter will not respond to changes in applied
pressure
Recommended actions
6.3.5 Digital pressure variable reading is low or high
Recommended actions
6.3.6 Digital pressure variable reading is erratic
Recommended actions
Rosemount 3051P
3. Check that power wires are connected to signal terminals and not test
terminals.
4. Verify clean DC power to transmitter (maximum AC noise 0.2 volts peak to
peak).
5. Verify the output is between 4 and 20 mA or saturation levels.
6. Have Field Communicator poll for all addresses.
1. Verify applied pressure.
2. Verify 4 and 20 mA range points.
3. Verify output is not in alarm condition.
4. Perform analog trim.
5. Check that power wires are connected to the correct signal terminals (positive
to positive, negative to negative) and not the test terminal.
1. Check impulse piping or manifold for blockage.
2. Verify applied pressure is between 4 and 20 mA points.
3. Verify the output is not in alarm condition.
4. Verify transmitter is not in loop test mode.
5. Verify transmitter is not in multidrop mode.
6. Check test equipment.
1. Check impulse piping for blockage or low fill in wet leg.
2. Verify transmitter is calibrated properly.
3. Check test equipment (verify accuracy).
4. Verify pressure calculations for application.
1. Check application for faulty equipment in pressure line.
2. Verify transmitter is not reacting directly to equipment turning on/off.
Troubleshooting
April 2020
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