Mode 3 Wiper Control
Rain sensing wiper control from off through
intermittent an stea y slow spee s.
Switch
Behavior
7 6 5 4 3 2 1
0 1 1 0 x 0 0 Normal Wiper Control
0 0 1 Wipe More
0 1 0 Wipe a Lot More
0 1 1 Wipe a Whole Lot More
1 0 0 Wipe Less
1 0 1 Wipe a Lot Less
1 1 0 Wipe a Whole Lot Less
1 1 1 Wipe har ly at all
x 0 x x Normal Slow Cycle Time (1.2 to 3 sec.)
1Long Slow Cycle Time (3 – 8 sec.)
See rainsensors.com for instructions that are just for wiper
control applications. (Click on “Wiper Control”).
The RG-11 may be use to control a wiper system. The output relay
turns on when the slow motor win ing shoul be engage . This will
typically be use to rive an external relay, which will in turn rive the
wiper motor win ings. This may be use for the wipers for a boat,
ship, locomotive, observation win ow, or many other applications.
The RG-11 oes not care what the wipers are wiping.
WARNING: The relay contacts of the RG-11 can control only a 1A
loa , an wiper systems generally require many times that current.
The RG-11 MUST be use with a suitable external relay in wiper
control applications.
The nominal wiper control is set so that it properly controls the wipers
of a passenger car. It is optimize for wiper systems that require
between 1.2 an 3 secon s to make a single complete actuation of
the wipers. A long cycle time is provi e (Switch 4 on) for systems
with a wiper actuation cycle time between 3 an 8 secon s. In all
cases, the RG-11 provi es a pulse to initiate the wiper actuation.
Most wiper system will inclu e some sort of cam fee back
mechanism that causes the wipers to keep running until they reach a
home position.
Mount the RG-11 so that it generally gets the same rainfall as the
surface to be wipe . Usually, this means about a 45 egree angle.
The RG-11 oes not nee to be within the actual fiel of view of the
win ow. A just the sensitivity control DIP switches (3, 2, an 1) to
set the system to wipe more or less, epen ing on the nee s of the
installation.
Mode 4: Irrigation Control
Rain Gauge output on means inhibit watering.
Switch
Behavior
8 7 6 5 4 3 2 1
X 1 0 X X 0 0 0 Typical Water Control. Inhibit
watering for up to 5 ays.
0 0 1 Water More
0 1 0 Water a lot more
1 0 0 Water Less
1 0 1 Water a lot less
0 X X X Inhibit irrigation uring a storm
1 Allow irrigation uring a storm
0 X X X X Inhibit irrigation uring freeze
1 Allow irrigation uring freeze
0 Normal Evaporation Rate
1 Hi Evaporation Rate
See rainsensors.com for instructions that are just for irrigation
control applications. (Click on “Irrigation Control”)
The RG-11 may be set to provi e precise control of an irrigation
system. Typically, the installation will connect to the COM an NC
relay contacts to interrupt the valves when watering shoul be
inhibite . Note that the RG-11 also requires 24 VAC (or other
suitable supply.)
The nominal irrigation profile is set so that the groun receives an
inch of water per week. It will inhibit watering upon the accumulation
of 0.2 inches of water, an re-enable the system after that water has
evaporate . This can be a short as less than a ay, or as long as six
ays, epen ing on rainfall. A itional DIP switch settings are
provi e for allowing more or less watering, as shown in the table
below.
Nominally (Switch 4 off), the RG-11 will inhibit watering uring a
storm, even if not much water has accumulate . The reasoning is
that if it is raining har now, the rainfall is likely to eliver enough
accumulation to justify inhibiting at least the current cycle of watering.
This prevents the “it's pouring, but my sprinklers are still running”
objection from the customer, an the accompanying excessive runoff
an mu y groun . The feature may be efeate by turning switch 4
on.
Normally, the RG-11 will inhibit irrigation if the temperature rops
below freezing, or nominally about 34 egrees. If SW 5 is on, the
RG-11 will allow irrigation below 34 egrees. Micro-power mo e is
isable in irrigation control.
In irrigation mo e, if Switch 8 is on, the control assumes a high
evaporation (or transpiration rate). Set this switch to ON for san y
soil or other con itions where the soil ten s to ry out quickly. The
system will re-enable the irrigation sooner.
Rain Gauge Mo el RG-11 Instructions PN 55-005-100 rev 012
