PanaFlow™ XMT1000 User’s Manual 65
Chapter 4. Error Codes and Troubleshooting
Chapter 4. Error Codes and Troubleshooting
4.1 Introduction
The XMT1000 flow transmitter is a reliable, easy to maintain instrument. When properly installed and operated, as
described in Chapter: Installation, the meter provides accurate flow rate measurements with minimal user
intervention. However, if a problem should arise with the electronics enclosure or transducers, this chapter explains
how to troubleshoot the XMT1000 flow meter. Indications of a possible problem include:
• Display of an error message on the LCD screen, PanaView
TM
Plus PC software, or HART
• Erratic flow readings
• Readings of doubtful accuracy (e.g., readings that are not consistent with readings from another flow measuring
device connected to the same process).
If any of the above conditions occur, proceed with the instructions presented in this chapter.
Note:
For high electrical noise areas, it is recommended that you use the “CE Marking Compliance” section on
page 5.
4.2 Error Classification and Error Codes
The XMT1000 electronics includes two or more subsystems. The Transmitter, Flow Measurement unit and/or Option
I/O. The purpose of the Error codes and string is to convey to the operator about the issues in the specific subsystem.
The communication error indicates that the Transmitter subsystem has lost communication with Flow measurement
sub-system or the Option I/O sub-system.
Errors in XMT1000 are classified into 5 types as indicated in the table below:
If a problem occurs with the electronics or transducers, a built-in error code message system greatly simplifies the
troubleshooting process.
All the possible XMT1000 error code messages are discussed in this chapter, along with the possible causes and the
recommended actions. When an error code is generated, it will appear in the lower left corner of the LCD screen, as
discussed in Chapter 3, Programming.
If an error message appears on the display screen during operation of the XMT1000, refer to the appropriate section
of this chapter for instructions on how to proceed. You may be asked to contact Panametrics. Providing all of the
diagnostic data and parameter information as in the Diagnostics Data Table prior to calling your local sales or
service center will help to speed up the issue resolution.
In addition to the local display, error messages are provided in the relevant Modbus register using bit-field
representation. For the location of the appropriate register, see Appendix C, "Error code bit-field representation".
Table 22: XMT1000 error classification
Error Classification Error Number Subsystem
Flow Errors E
n
where n is the Error number Flow subsystem
System Errors S
n
where n is the Error number Transmitter or Flow subsystem
Communication Errors
C
n
where n is the Error number
Transmitter to Flow or Option I/O
Transmitter Errors X
n
where n is the Error number Transmitter subsystem
Option I/O Errors A
n
where n is the Error number Option I/O subsystem