Omega DPU91-BC SERIES, Руководство пользователя, Страница: 14 / 32

OMEGA DPU91-BC Batch Controller System 14
ERROR – Error:
If using S
3
L fl ow sensor, activates relay
when no sensor is detected.
MULTIPLE – Multiple Mode:
Activates relay when any one of the four
enabled conditions are met. User can
select from Missing Signal, Overrun, High
Flow or Error.
Relay Settings - continued
Advanced Mode
(See Input Menu - Page 17)
TOT VOL – Totalizer Volume:
When resettable totalizer exceeds
speci
fi ed volume, relay activates and
latches.
Requires Totalizer Volume Reset to
deactivate relay (see Reset Total, pg. 16).
This mode is useful to trigger a reminder
when a process is due, as for a
backwash cycle or
fi lter change.
Relay energized
Relay de-energized
TWO STG – Two Stage:
This function is designed to prevent
over
fi lling or to minimize water hammer.
Both the mainline relay and the bypass
relay are energized when the batch
starts. The mainline relay then de-
energizes at a programmed batch
percentage, allowing
fl ow to continue
through a smaller bypass line to reduce
the
fi ll rate (see diagram). After the batch
is dispensed, the bypass relay
de-energizes, completing the sequence.
NOTE:
If Relay 1 is selected for
Two-Stage operation, relay 2 defaults to
Bypass. If Relay 2 is selected, relay 3
defaults to bypass. If Relay 3 is selected,
relay 2 defaults to bypass.
flow
to tank
Bypass valve
Main line
Valve
Overflow
tank
0% 90% 100%
Relay 2 Bypass
Relay 1 Main
Time
Relay energized
Relay de-energized
% Batch Percentage