Troubleshooting Overview - Emerson Rosemount 5402 Reference Manual

Reference Manual
00809-0100-4026, Rev KC
7.2

Troubleshooting overview

Table 7-1
symptoms and necessary actions to be taken.
Table 7-1. Troubleshooting Chart
Symptom
No level reading
®
No HART
communication
Analog Out is set in
Alarm
Incorrect level reading
Integral display does not
work
Temperature
measurement failure
Level measurement
failure
Volume measurement
failure
No surface echo
1. A malfunctioning display panel may only be replaced by service personnel at the Emerson Automation Solutions Service Department.
2. If the Rosemount 5400 has been exposed to temperatures outside the specified limits, the device may stop its normal operation.
Service and Troubleshooting
below gives information on the possible causes of system malfunctions. It also lists the
Possible cause
Power disconnected

Data communication cables

disconnected
COM Port configuration does not

match the connected COM Port
Cables may be disconnected

Wrong HART address is used

Hardware failure

HART resistor

Measurement failure or

transmitter failure
Configuration error

Disturbing objects in the tank

See "Application errors" on

page 187
Action
Check the power supply.

Check the cables for serial data communication.

Check LED/Display.

Check that correct COM Port is selected in the HART server .

See "Specifying the COM port" on page
Check the COM port buffer,

page 112
.
Check wiring diagram.

Verify that the 250  resistor is in the loop. See

page 97
.
Check cables.

Make sure that correct HART short address is used.

Try address = 0
Check the COM Port Buffer setting, see page

port buffers" on page 113
Check Analog Output current value to verify that transmitter

hardware works.
Open the Diagnostics window in RRM to check active errors and

alarms, see "Diagnostics" on page
See also "Analyzing the measurement signal" on page 162

"Analog Output status" on page 186
Check the Tank Height parameter; RRM>Setup>Tank.

Check status information and diagnostics information, see

"Diagnostics" on page 174
Check that the transmitter has not locked on an interfering object.

See "Analyzing the measurement signal" on page 162

Check the display configuration in RRM (open menu Setup >

General).
Diagnostics

Contact Emerson Automation Solutions Service Department

Check ambient temperature

Restart gauge.

Contact Emerson Automation Solutions Service Department.

Check Power Supply.

Check the gauge configuration.

Check that the mechanical installation is correct.

Restart gauge.

Check gauge configuration using PC Based configuration tool.

Check signal strength.

Restart transmitter.

See "Analyzing the measurement signal" on page 162

Service and Troubleshooting
October 2018
112.
"Specifying the COM port" on
Figure 4-21 on
"Setting the COM
.
174.
.
.
(2) .
and
.
(1) .
.
161