Instruction manual

74 RFT9739 Field-Mount Transmitter Instruction Manual
Troubleshooting
continued
7.7 Master reset
Use the switches on the transmitter electronics module to perform a
master reset. A master reset causes communication options to default to
the setup used by HART Communicators, causes all other configuration
options to return to their default values, and
requires complete
characterization and reconfiguration of the transmitter.
Table 7-8
lists master reset defaults for characterization and
configuration variables.
To perform a master reset:
1. Note the position of switch 5.
2. Shut off power to the transmitter.
3. Set switches 1, 2, and 3 to the OFF position.
4. Set switches 4, 5, 6, and 10 to the ON position.
5. Restore power. Wait until the diagnostic LED blinks ON three times
followed by a 1-second pause.
6. Set switches 4, 6, and 10 to the OFF position.
7. Return switch 5 to its original position.
8. Shut off power to the transmitter. Wait 30 seconds.
9. Restore power.
If switches are left in the ON position, another master reset will occur the
next time power to the transmitter is shut off and then restored.
To avoid
an unintentional master reset
, set switches 4, 6, and 10 to the OFF
position after performing a master reset.
After the user performs a master reset, the diagnostic LED on the
electronics module blinks ON four times per second until the user
characterizes the transmitter to the sensor. To characterize the sensor
and configure the transmitter, use a HART communicator, the ProLink
program, or a Modbus host. For more information, see
Section 2.2
,
page 4. After characterization is completed, the LED blinks ON once per
second to indicate normal operation.
If the transmitter has a display, the blinking "Msg" indicator appears in
the lower right corner to indicate the presence of a status message. If
the user scrolls to the message screen, it reads "NOT CONFIGURED",
indicating the transmitter memory contains default variables. After
characterization is completed, the message screen reads "Sensor OK
*ERROR CLEARED*", and the transmitter is ready for normal operation.
CAUTION
All configuration data will be lost by performing a
master reset.
Before performing a master reset, phone the Micro Motion
Customer Service Department:
• In the U.S.A., phone [phone], 24 hours
• Outside the U.S.A., phone [phone], 24 hours
• In Europe, phone [phone]
• In Asia, phone [phone]