Vega DSGH - Page 17

Maintenance and Diagnostics
When a HART device initially connects to the gauge, any conditions in alarm appear.
Condition
Description
Action
RAM Status -
Pass/Fail
RAM corrupt/RAM memory corruption
occurred and resolved internally.
Repeated triggering of alarm suggests
hardware problem.
Consult VEGA Field Service.
Sensor EEPROM -
Pass/Fail
Sensor EEPROM corrupt/ Critical
memory corruption occurred on
sensor pre-amp board EEPROM may
not be resolved internally. If alarm
recurs, suggests hardware problem.
Check for recurrence by
acknowledging alarm. Cycle power
to unit.
If it recurs, contact VEGA Field
Service.
Real Time Clock
Status - Pass/Fail
Real time clock failed/Can cause
miscalculation of timed events.
Reset time and date. Contact VEGA
Field Service if clock does not reset.
Note: If gauge has been without
power for 28 days or greater, you
must reset clock.
Sensor Temp
Probe - Pass/Fail
Sensor temp probe fail/Sensor
temperature probe may not be
functioning, which results in
erroneous measurements.
Verify sensor temperature on
Diagnostics, Process Chain tab. If
temperature reads - 0.5 °C (+31 °F)
constantly, probe may be broken and
CPU board may need replacement.
Contact VEGA Field Service.
Source Wipe Due -
No/Yes
Source wipe due Perform source wipe. Log shutter
check on Source Functions tab.
CPU EEPROM -
Pass/Fail
CPU EPPROM corrupt/Critical
memory corruption occurred on CPU
board EEPROM may not be resolved
internally.
If alarm recurs, suggests hardware
problem.
To check for recurrence,
acknowledge alarm. Cycle power to
unit.
If it recurs, contact VEGA Field
Service for advice.
Sensor Status -
Pass/Fail
Sensor fail/ Less than 1 count seen in
last 10 seconds (configurable by Field
Service.) Indicates sensor is
malfunctioning.
Contact VEGA Field Service.
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