GE Masoneilan 12420 - Page 58

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Message on
LCD / ValVue
(English))
Description Probable Cause Recommended Action
TEMPERATURE
SENSOR OF
SENSOR BOARD
Compensated temperature reading of
sensor circuit board was outside the -55 °C
(-67 °F) to +125 °C (+257 °F) for five reads in
a row
Environment
Ambient temperature exceeded operating
temperature range
Take any action to ensure
temperature does not exceed
normal temperature range.
Return the unit if it fails
NVM CHECKSUM
SENSOR READ
Non Volatile Memory checksum error of
sensor circuit board
Permanent corruption of the content in
non-volatile memory occurred
Remove power to the device for two
minutes and restart the device
If the failure persists, replace the
device
NVM MODULE
WRITE
Non Volatile Memory error of main circuit
board module if write to FRAM failed or if
data repairing in FRAM failed
A problem occurred when attempting to
write to the non-volatile memory
Clear the condition using ValVue
software or HART host
If the failure persists, replace the
device
NVM SENSOR
WRITE
Non Volatile Memory error of sensor
circuit board if write to FRAM failed or if
data repairing in FRAM failed
A problem occurred when attempting to
write to the non-volatile memory
Clear the condition using ValVue
software or HART host
If the failure persists, replace the
device
NVM MODULE
TEST
Non Volatile Memory error of main circuit
board module if both an FRAM record and
its copy have CRC errors
A problem occurred when testing the
non-volatile memory
Clear the condition using ValVue
software or HART host
NVM SENSOR
TEST
Non Volatile Memory error of sensor
circuit board if both a FRAM record and its
copy have CRC errors
A problem occurred when testing the
non-volatile memory
Clear the condition using ValVue
software or HART host
RAM CHECKSUM
ERROR
RAM checksum error A corruption of the content in non-volatile
memory occurred
FLASH
CHECKSUM
ERROR
Flash checksum error The firmware checksum was invalid due
to data corruption
Remove power to the device for 2
minutes and restart the device
If the failure persists, replace the
device
RTOS
SCHEDULING
ERROR
A RTOS task overran itself The micro-controller failed an operation
STACK ERROR
Stack error.
A valid hidden record (in RAM) existing
upon reset indicating that a stack
overflow has occurred, as detected by the
task switching code
A problem with the memory stack
occurred
Clear the condition using ValVue
software or HART host
FACTORY WRITE
Raw write to FRAM Raw write to FRAM
Technical fault to indicate a factory-only
operation
WATCHDOG
TIMEOUT
Device recovered after reset Device recovered after reset Clear the condition using ValVue
software or HART host
IRQ FAULT
Valid hidden record (in FRAM) existing
upon reset that indicates that an illegal
interrupt occurred
An illegal circuit board interrupt occurred Clear the condition using ValVue
software or HART host
If the failure persists, replace the
device
TIMEOUT FLASH
TEST
Time to complete the whole flashing
process is over
This message appears if a round of flash
test is not completed in 2 hours
Clear the condition using ValVue
software or HART host
If the failure persists, replace the
device