Vega DSGH - Page 75

DSGH Installation and Operation Guide 73
Diagnostics and repair
Real Time Clock
Status – Pass/Fail
Real time clock fail
The clock failed. This can
cause a miscalculation of timed
events. (If the gauge had no
power for > 28 days, reset the
time and date.)
Reset the time and date. If
they do not reset, call
VEGA Field Service.
Sensor Temp
Probe –
Pass/Fail
Sensor temp probe fail
The sensor temperature probe
may not be functioning, which
results in erroneous
measurements.
Verify the sensor
temperature on the Gauge
Info | Min/Max History
tab. If the temperature
reads -0.5 °C constantly,
the probe is broken and the
sensor assembly may
need replacement. Call
VEGA Field Service.
Source wipe due
–
No/Yes
Source wipe due Acknowledge the alarm by
logging a shutter check in
the Source Functions
tab. See page 5-87.
CPU EEPROM –
Pass/Fail
CPU EEPROM corrupt
A critical memory corruption
occurred on the CPU board
EEPROM that may not be
resolved internally.
To check for recurrence,
acknowledge the alarm.
Cycle power to the unit.
If the alarm recurs, there is
a hardware problem.
Perform the procedure to
repair the corrupted
EEPROM on page 4-63.
Alarm type 1 –
Not used
Not used in standard software. Consult VEGA special
software.
Alarm type 2 –
Not used
Not used in standard software. Consult VEGA special
software.
Sensor Status? –
Pass/Fail
Sensor fail
<1 count seen in the last 10
seconds. (Configurable by Field
Service.) Indicates the sensor is
malfunctioning.
Call VEGA Field Service.
Table 5.3 Diagnostic alarm conditions (continued)
Diagnostic check
and Normal/Error
conditions
HART message
Diagnostic description Action