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