P071 FAILSAFE MATERIAL LEVEL
Select the material level to be reported when the Failsafe Timer expires.
If
"HOLd"
(preset) is selected, in the RUN mode, the "last known" material level is held.
If
"HI"
or
"LO"
are selected, the DPL+ advances to the Span (P007) level or Empty (P006)
level as restricted by Failsafe Level Advance.
Select the Failsafe Material Level based upon the relay and/or mA output operation
required during failsafe operation.
e.g. 1 To de-energize a high alarm relay (perhaps to stop material infeed), select "HI".
e.g. 2 To force an "empty vessel" mA output (perhaps to have pumps stopped), select "LO".
To select HI, LO, or HOLd...
to display the Auxiliary Function symbol,
or as required to scroll access the desired option,
Alternatively, a specific Failsafe Material Level within -50 to 150% of Span (P007) may
be entered directly in Units (P005), or % of Span (P007).
values: -999 to 9999
P072 FAILSAFE LEVEL ADVANCE
Select the restriction applied to the DPL+ advance to (and from) the Failsafe Material Level.
When "restricted" (preset), the DPL+ advances to the Failsafe Material Level (and to the "new"
material level when a valid measurement is made) as determined by the Measurement
Response (P003) or the Max Fill/Empty Rate (P700/P701) values entered.
Alternatively, when "immediate" is selected, the Failsafe Material Level
(or "new" material level) is assumed immediately.
Otherwise, when "fast back" is selected, the Failsafe Level Advance is restricted, however the
advance to the new material level (when a valid measurement is made) is immediate.
values: 1 = restricted
2 = immediate
3 = fast back
%
PL-508 36
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