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Maintenance and Troubleshooting
Yamatake Corporation
7-30
ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter
7-6-3 :Self-Diagnostic Messages
The following messages are displayed by pressing the [n] key at the time of a failure.
The meanings of the messages and the necessary action are summarized, here.
An abnormality of the transmitter is suspect.
Message
Meaning
Required action
Transmitter
makes no
response.
• Repeat the procedure for start-
ing communications.
• Press the
and see what
message is displayed.
• Check the loop, the SFC con-
nection loop, load resistance,
and the supply voltage.
Message
Meaning
Required action
MDU/DAC fault
Contact the appropriate personnel.
Memory fault
Contact the appropriate personnel.
PAC fault
Contact the appropriate personnel.
PROM function
fault
Contact the appropriate personnel.
RAM fault
Contact the appropriate personnel.
ROM fault
Contact the appropriate personnel.
NO XMTR RESPONS
U
STAT
F/S DIR
DACCOMPFAULT
NVM FAULT
PAC FAULT
PROM FAULT
RAM FAULT
ROM FAULT