206
ESPLXD-ET Controller
Station Run Time Settings
A
Use the ET Manager Scheduler software found on the ET Manager
Resource CD to determine all settings for your ET Manager
Cartridge and ESPLXD-ET Controller. The scheduler software
requires site information such as: root depth, soil type, and
sprinkler type, nozzle size and/or type, pressure, and spacing
information to calculate the precipitation rate of each zone. Catch
can collections can also be entered into the scheduling software
to calculate your precipitation rate and distribution uniformity.
B
Use the sprinkler head manufacturer’s expected precipitation rate
(typically expressed in inches per hour). Perform this calculation
for each zone to determine the setting for each program:
Precip.
Rate
X
System
Efficiency
(80%=0.8)
X
Run
Time
(min).
·
—
·
60
—
—
Irrigation
Amount
C
Perform a Catch Can Test for each valve by placing ”cans” in
various locations throughout the zone, then run the zone for the
entire scheduled run time. Measure the amount of water in each
“can” and average the amounts. This average measurement is your
Irrigation Amount.
b
b
NOTE:
Instructions on how to conduct the test can be found in
the ET Manager Scheduler Help Files).
Program Station Run Times
Run times must be set to apply the same amount of water as the
Irrigation Amount setting in the ET Manager.
Precipitation
Rate
(inches per hour)
Irrigation Amount
(inches)
0.35”
0.50”
0.65”
Station Run Times
(minutes)
Typically
Spray
Heads
2.00
11
15
20
1.75
12
17
22
1.50
14
20
26
1.25
17
24
31
Typically
Rotors
1.00
21
30
39
0.90
23
33
43
0.80
26
38
49
0.70
30
43
56
0.60
35
50
65
0.50
42
60
78
0.40
53
75
98
ESPLXD-ET user-manual (670504-01) artwork_120716.indb 206
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