A5E33329501
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Page 231
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Diagnosing and Troubleshooting
Communication Troubleshooting
Generally
1.
Check the following:
• There is power at the device
• The optional LCD is showing the relevant data
• The device can be programmed using the local push buttons.
• If any fault codes are being displayed, see “General Fault Codes” on page 233
for a detailed list.
2.
Verify that the wiring connections are correct.
Specifically
1.
The SITRANS LUT400 is set to communicate via a HART modem but no
communication is returning to the master.
• Check that the device address is set correctly for the HART network.
2.
A SITRANS LUT400 parameter is set via remote communications, but the parameter
remains unchanged.
• Try setting the parameter from the local push buttons. If it can not be set using
is set to the unlock value.
If you continue to experience problems, go to our website at:
www.siemens.com/sitransLUT400, and check the FAQs for SITRANS LUT400, or contact
your Siemens representative.
Notes:
• Many of the parameters
referenced and techniques described here require a good
understanding of ultrasonic technologies and Siemens echo processing software. Use
this information with caution.
• If the setup becomes too confusing do a
and start again.
• As a further resource,
Understanding Ultrasonic Level Measurement
is available on our
website. Go to www.siemens.com/level.
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