Troubleshooting_St 700 Basic Transmitter; Overview; Critical Diagnostics Screens; Fault Conditions And Recommended Corrective Actions - Standard Display - Honeywell ST 700 User Manual

16. Troubleshooting_ST 700 Basic Transmitter

16.1 Overview

Troubleshooting involves responding to error messages, primarily displayed by the MC Toolkit. Error
messages that may occur on the Transmitter's local display are fairly self-explanatory and intuitive.
However, this section covers the diagnostic messages that indicate critical conditions. Other than the
critical conditions, additional detail is not provided. If you require assistance, contact your distributor
or Honeywell Technical Support. All other messages are covered by the MC Toolkit Users' Manual.

16.2 Critical Diagnostics Screens

The Standard Display will display the fault message on the top line of the LCD .
16.2.1 Fault Conditions and Recommended Corrective Actions – Standard
Display
The Standard Display will display the message FAULT on the top line of the LCD and the
appropriate diagnostic text on the lower line.
Table 40 – ST 700 Basic Transmitter - Fault Conditions and Recommended Corrective Actions.
Condtion
Mbd Com
(Meter body Comm
fault)
Comm El
(Communication
Board fault)
Mtrbody
(Sensor Board Fault)
Page 114
Analysis
Communications between the
Meter body and the Electronics
Module has failed.
A critical failure has been detected
on the HART Electronics Module.
A critical failure has been detected
in the Meter body
ST 700 SmartLine Pressure Transmitters User's Manual
Recommended Corrective
Action
Check the ribbon cable that
connects the Meter body to the
Electronics Module. Ensure that
the cable is securely plugged into
the Electronics Module. Ensure
that all pins are plugged into the
connector (e.g. ensure that the
connector is not offset in a way
that leaves some pins
unconnected).
Cycle power to the transmitter.
If the problem continues to occur
replace the Electronics Module. If
this does not fix the problem,
replace the Meter body.
Cycle power to the transmitter.
If the problem continues to occur
replace the Electronics Module.
Cycle power to the transmitter.
If the problem continues to occur
replace the Electronics Module.
Revision 8.0