Emerson Rosemount 5402 - Specifications and Reference Data; Functional Specifications

191
Reference Manual
00809-0100-4026, Rev KC
Service and Troubleshooting
October 2018
Service and Troubleshooting
7.15 Troubleshooting
If there is a malfunction despite the absence of diagnostic messages, see Ta bl e 7- 8 for information on the
possible causes.
Note
If the transmitter housing must be removed for service, make sure that the PTFE seal is carefully
protected against dust and water.
Table 7-8. Troubleshooting Chart
Symptom Possible cause Action
No level reading
 Power disconnected
 Data communication cables
disconnected
 Check the power supply.
 Check the cables for serial data communication.
Incorrect level reading
 Configuration error
 Disturbing objects in the
tank
 See “Application errors” on
page 187
 Check the Tank Height parameter; RRM > Setup >
Ta nk .
 Check status information and diagnostics
information, see “Diagnostics” on page 174.
 Check that the transmitter has not locked on an
interfering object.
Integral display does
not work
 Check the display configuration;
RRM > Setup > General.
 Diagnostics.
 Contact Emerson Automation Solutions Service
Department
(1)
.
FOUNDATION Fieldbus
Card to Transmitter
Communication Fault
 Verify Device Mode setting, should be FOUNDATION
Fieldbus.
(Parameter: ENV_DEVICE_MODE)
 Restart method from Resource Block.
 Reboot gauge: cycle power to the device. If error
persists, replace the transmitter head.
Level Measurement
Failure
 Analyze the echo curve for possible reasons.
 Check device configuration.
 Check physical installation of device (for example,
antenna contamination).
 Load default database to the device.
 Reconfigure the device. If error persists, replace the
transmitter head.
Internal Temperature
Critical
 Replace the transmitter head.
Volume Measurement
Failure
 If Level Measurement Failure is active, clear that
alert first.
 Check volume configuration.
 Load default database to the device.
 Reconfigure the device. If error persists, replace the
transmitter head.
No surface echo
 Check signal strength.
 Restart transmitter.
Tank Signal Clip
Warning
Restart transmitter.