
Programming the Outputs
Page 71 of 102
10.7 Configuring an Event-Other Relay
10.7.1 Schedules, Prebleeding, Lockout and
With a Sensor
Events are typically used to feed biocides on a
pre-determined schedule with weekly or daily
schedules being the most popular. An example
might be; Every Monday feed biocide A for 20
minutes at 7 AM, then feed biocide B every
Thursday, for 25 minutes at 7 AM. You can
choose a 28 day cycle to accommodate feeding
every other week.
Schedules generally do not follow a calendar.
Daily choices repeat every day. If you choose the
28 day cycle, the next screen will tell you which
week you are in, 1
–
4. Weekly entries match a
weekly calendar. Sunday is day 1 and Saturday is
day 7.
Any event has an option to configure prebleeding
and/or lockout to maximize the effect of the
product. The idea of locking the bleed valve during
and after feeding a non-oxidizing biocide improves
effectiveness by increasing contact time.
Programming a prebleed ensures that the tower
not cycle up above the blowdown set-point
avoiding a scaling situation. The prebleed setup
will open the bleed valve until a timer has expired
or a low conductivity set-point is reached. The
feed is delayed by this action.
If you have not enabled the Feed relay, see
section
10.6 Configuring a Feed Relay
Use an event in conjunction with a sensor to limit ON
time during the event. See
9.5.5 Feed Based on a
Sensor with Event Control
10.7.1.1 Prebleed/Lockout
The following steps are a continuation of
10.7.1
Schedules, Prebleeding, Lockout and With a
Sensor
If your event does not require a Prebleed or Lockout,
skip to section
10.7.2.1 Adding Events
NOTE: In addition to a feed relay, this procedure
requires the use of a blowdown relay. See section
10.5 Configuring a Blowdown Relay
1- From the Daily, Weekly or 28 Day screen,
choose
F3
CONFIG
as before.
2- Press
F1
, Select to choose
Prebleed
3- Scroll down to find the blowdown relay and
press
F1
to
SELECT
it
4- Scroll down to find the Conductivity sensor and
press
F1
to
SELECT
it.
5- Press
F3
to return to the Configuration menu
and
F1
to Select
Prebleed
again.
6- Use the arrows to adjust the Prebleed time.
Press
F1
to
SAVE
7- Press
F3
,
Config
.
8- Press
F1
to choose
Lockout
9- Use the arrows to edit the lockout time. This
value should include the feed time of the pump.
It is not the length of time after the pump stops.
10- Press
F1
to
Save
.
We are now ready to add events to the relay. The
relay should be named as well to avoid confusion.
This menu is the same for Pulse relay event
configuration.
Содержание Aegis-II
Страница 26: ...Mounting and Installation Page 26 of 102 Figure 14 Aegis II overall location of major components ...
Страница 27: ...Mounting and Installation Page 27 of 102 Figure 15 Aegis II motherboard general arrangement ...
Страница 28: ...Mounting and Installation Page 28 of 102 Figure 16 Main PC board Input Wiring diagram ...