Milltronics AiRanger SPL PL-573, Instruction Manual

Page: 40 / 113

Page 40 AiRanger SPL PL-573
Application Par
a
m
.
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 "High" or "Low" are selected, the SPL 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
"High".
e.g. 2 To force an "empty vessel" mA output (perhaps to have pumps stopped),
select "Low".
To select High, Low, or HOLd...
1. Press
to display the Auxiliary Function symbol.
2. Press
or as required to scroll access the desired option.
3. Press .
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 SPL advance to (and from) the Failsafe Material
Level.
When "restricted" (preset), the SPL 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