Page 94
ST 800 Series HART/DE Option User’s Manual
Revision 5.0
(continued)
Non-Critical
Excess Span Correction
The SPAN correction factor is outside acceptable
limits. INPUT may have been incorrect during
calibration or transmitter was in output mode
during a URV CORRECT procedure.
Resolution:
Check input pressure and be sure that it matches
calibrated range values (LRV and URV). Check
Meter Body. Perform an LRV or ZERO
CORRECT procedure followed by a URV
CORRECT procedure.
Excess Zero Correction
The ZERO correction factor is outside acceptable
limits. INPUT may have been incorrect during
calibration or transmitter was in output mode
during an LRV or ZERO CORRECT procedure.
Resolution:
Check input pressure and be sure that it matches
calibrated range values (LRV and URV). Check
Meter Body. Perform an LRV or ZERO
CORRECT procedure followed by a URV
CORRECT procedure.
Sensor Over
Temperature
Possible causes:
Meter Body temperature is too high. Accuracy
and life span may decrease if it remains high.
Resolution:
Verify the environment temperature is within
specification. Take steps to insulate Meter Body
from temperature source.
