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Prog Bio 1 Add
Press ENTER here to see a list of all of the biocide adds presently scheduled. The first screen
displayed is for Today's Biocide add. Use the NEXT key to see Tomorrow's add or the PREV key to
see Yesterday's add. Use the arrow keys to edit the starting time or length of the add. The screen
should look similar to the one below:
Prog Bio 1 Add
2Mon 10:00 45
The bottom line indicates that on the second Monday in a multi-week cycle, Bio 1 will begin its
Biocide Addition cycle at 10 AM and will add for 45 minutes. If the biocide output does not come on
at exactly 10 AM, there may be NO FLOW, or there may be a conflict with Biocide output 2. If either
of these conditions is true, the output will be delayed until the flow has been restored, or the Biocide 2
lockout time is completed. The times are set in a 24 hour format, so 1 PM is entered as 13:00. The
WDT supports daily cycles, 1 week cycles, 2 week cycles and 4 week cycles. It is not necessary for
both biocide outputs to be on the same cycle.
Press the EXIT key to exit the Prog Bio 1 menu. There are separate Bio 1 and Bio 2 Program menus
and separate program memories, allowing addition of each biocide independently.
Pre Bleed
This setting provides a Pre Biocide Add Bleed Conductivity Set Point. Pre Bleed is the first step in a
biocide addition. The operating conductivity must be lower than this setting before the biocide output
will turn ON. If the conductivity is higher than this set point, the bleed output is turned on to lower the
conductivity. This setting is independent of the bleed set point in the Bleed Menu. There are separate
Bio 1 and Bio 2 Pre Bleed settings. To disable the Pre Bleed, set this value higher than your operating
set point or set the value to zero.
Lockout
This setting determines how long bleed and additional biocide adds will be locked out after
completing a biocide add. This value is set in hours and minutes. There are separate Bio 1 and Bio 2
settings. This can be set to 0 if it is not desired.
Bio 1 Add Mode 1
The last digit indicates that Bio 1adds are scheduled on a 1 week repeating cycle. To change this,
press the ENTER key and then use the Up or Down arrow keys to select the appropriate choice.
Biocide cycles may be daily (up to ten times per day) or 1, 2, or 4 weeks long. This is provided to save
you some programming effort. If you add the same thing every week, use the 1 week cycle. If you
wish to add Biocide 1 only once every two or four weeks use the 2 or 4 week cycle. If you wish to add
Biocide 1 more than once a day, choose the daily cycle.
The Bio 1cycle length is not affected by the Bio 2 cycle length. In weekly cycle modes, the WDT can
schedule one add per day for each Biocide output for up to 4 weeks. If a daily cycle is chosen, that
biocide can be added up to ten times per day, every day.
1 Week
2 Week
4 Week
Daily
H O A
This is the Hand Off Auto selector screen for the Biocide output. There are separate settings for Bio 1
and Bio 2. In the Off position Biocide adds can be missed. See the description in the Bleed menu for
more details about HOA settings.
