Honeywell SLG 700 Option Manual page 195

Problem cause
Surface in BDH
Surface in BDL
Interface in BDH
Interface in BDL
Rev.5
Things to check
This indicates that either the
surface or interface reflection
has been tracked into the
upper zone near the
Reference Plane where
measurements are not
accurate.
This indicates that either the
surface or interface reflection
has been tracked into the
lower zone near the End of
Probe where measurements
are not accurate.
This indicates that interface
reflection has been tracked
into the upper zone near the
Reference Plane where
measurements are not
accurate.
This indicates that interface
reflection has been tracked
into the lower zone near the
End of Probe where
measurements are not
accurate.
FOUNDATION Fieldbus Option User's Manual
Recommended action
This is a condition that can occur during
normal operation and does not generally
require corrective action. If this condition is
triggered when it is not expected, verify that
the Blocking Distance High parameter is set
correctly for the current conditions.
If distance to product is in Higher zone then
status associated with device variables
derived from distance to product will be
shown as uncertain in local display and on
host the status would be poor accuracy.
This is a condition that can occur during
normal operation and does not generally
require corrective action. If this condition is
triggered when it is not expected, verify that
the Blocking Distance Low parameter is set
correctly for the current conditions.
If distance to product is in Lower zone then
status associated with device variables
derived from distance to product will be
shown as uncertain in local display and on
host the status would be poor accuracy.
This is a condition that can occur during
normal operation and does not generally
require corrective action. If this condition is
triggered when it is not expected, verify that
the Blocking Distance High parameter is set
correctly for the current conditions.
If distance to interface is in Higher zone then
status associated with device variables
derived from distance to interface will be
shown as uncertain in local display and on
host the status would be poor accuracy.
This is a condition that can occur during
normal operation and does not generally
require corrective action. If this condition is
triggered when it is not expected, verify that
the Blocking Distance Low parameter is set
correctly for the current conditions.
If distance to interface is in Lower zone then
status associated with device variables
derived from distance to interface will be
shown as uncertain in local display and on
host the status would be poor accuracy.
Page 179