150
ESPLXD-ET Controller
FloWatch
TM
FloWatch unleashes the true power of the ESPLXD-ET controller.
FloWatch compares current flow conditions to expected learned
or user-entered flow rates and takes various actions based on your
settings and input. Since current flow conditions are required, FloWatch
can only be used when flow sensors are present. To use FloWatch, you
must do all of the following:
A.
Install flow monitoring hardware into the appropriate locations
of your irrigation system. You should install one flow sensor just
downstream of each master valve but upstream of any valves.
To ensure stable readings, flow sensors should be installed at
least ten times the distance of the pipe diameter downstream of
the Master Valve with an additional five pipe diameter distance
between the flow sensor and any additional hardware.
B.
Connect each flow meter to an SD-210 sensor decoder using
the instructions in the “Connecting Decoders” portion of the
Installation section of this manual.
C.
Set up the flow sensors using the flow sensor setup wizard
described in the Setup Wizards portion of the Basic Programming
section of this manual.
D.
Follow the directions below to set up FloWatch.
b
b
NOTE:
Once you have set up flow on your controller, the current
flow rate will be displayed on the Auto screen unless you turn off
FloWatch. For more information on turning FloWatch on and off,
see “Setting Up and Using flow” below.
Set Up and Use FloWatch
TM
The ESPLXD-ET controller lets you set the flow rates you expect or
to automatically Learn Flow rates based on real usage. Once flow is
learned or manually entered, the SEEF and SELF settings let you define
the parameters for excessive or low flow and to set the behavior of
the controller when these conditions are detected. You can also turn
FloWatch off or back on again if you like.
FloWatch needs expected flow rates to work properly. Flow rates can
be entered manually or can be learned automatically through a Learn
Flow process. An automatic Learn Flow operation will Learn Flow for
each station that has programmed run times. Ensure you have set
up runtimes for all stations included in a Learn Flow exercise prior to
setting up a Learn Flow.
A FloZone is a group of stations downstream of a master valve and flow
sensor. In a shared main line, stations may be downstream of more than
one master valve and flow sensor. Since LXD supports up to 5 Master
Valves, as many as 5 FloZones can be created. An irrigation system
consisting of 5 MVs flowing into 5 individual main lines would result in
5 FloZones. An irrigation system consisting of 5 Master Valves flowing
into one shared main line would result in 1 FloZone.
b
b
NOTE:
Prior to learning or manually setting flow, it is a good idea
to check the master valve assignments for each of your stations.
See the “station Setup” portion of the Setup Wizards portion of
this manual in Basic Programming.
b
b
NOTE:
Water pressure, particularly from municipal sources, can
vary significantly throughout the day. To mitigate this variance,
use the time delay option to delay the Learn Flow start time to
when irrigation would normally operate.
ESPLXD-ET user-manual (670504-01) artwork_120716.indb 150
7/16/2012 3:48:49 PM
