GF Signet 9900-1BC Batch Controller System - Manual (Page 12)

12 9900-1BC Batch Controller Manual
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.
TOT VOL – Totalizer Volume:
When resettable totalizer exceeds specifi 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.
TWO STG – Two Stage:
This function is designed to prevent overfi 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
Advanced Mode
(See Input Menu - Page 17)
Relay Mode Settings - continued
Relay energized
Relay de-energized
% Batch Percentage
Relay energized
Relay de-energized