Hydreon RG-11 User manual

LENS
O-RING
STRETCH BEFORE
INSTALLING
SHADE
NOTCHES IN RING
MATE WITH
RIBS IN LENS
PRINTED-CIRCUIT
BOARD (PCB)
SCREWS
(4 OF #6 X 1”)
HOUSING
19.16
.75
10.40
.41
6.40
.25
19.05
.75
9.53
.38
70.71
2.78
120.23
4.73
55.20
2.17
OPTICAL RAIN GAUGE
MODEL RG-11
INSTALLING THE RAIN SENSOR
1. Determine the Mode / Set DIP switches
You must set the DIP switches so that the RG-11
behaves the right way for your application. The pages
that follow describe each of the possible modes, and
how to set the DIP switches.
2. Mount the Rain Gauge
Mount the rain Gauge where it gets a clear
measurement of precipitation– away from overhangs,
etc.
The mounting arm is designed to fit over a strap 0.75”
(19 mm) wide. Two 0.25” (holes 6.35 mm) are placed
0.75” (19 mm) part.
The gland style connector goes in the bottom hole. Be
sure to use wire rated for outdoor (high-UV) use.
For conduit applications, the mounting arm may be
removed, and the wiring hole drilled out using a step drill
to accommodate a ½” EMT compression connector or
similar style of conduit connector.
3. Assemble the Rain Gauge as shown.
The silicone O-ring fits nicely in the lens groove, but it
can fall or slip out during assembly. After the unit is
assembled, verify that the O-ring is properly seated by
confirming that you can see it through the lens, all the
way around.
The Rain Gauge must be assembled when dry. Any
water trapped inside can condense and cause corrosion.
You may optionally add extra desiccant packets (not
supplied). If the Rain Gauge is not subject to splashing
or sprayed water, you may optionally vent the enclosure
by drilling a 1/8” (3 mm) hole in the bottom of the case.
MOUNTING ARM
CUT OFF FOR
CONDUIT-MOUNT
LED ON BOARD
ON when OUT
is active
EXPLODED VIEW
- APPLICATION WARNING -
Do not use the RG-11 in any application where the false
indication of water or a missed valid detection of water
could cause damage to life or property. It is the
responsibility of the system designer / integrator to
design redundancy into the system so that the failure of
any one component, including the RG-11 or other
sensor, does not result in disaster. The manufacturer of
the RG-11, Hydreon Corporation, will in no way be
liable for consequential damages due to the failure or
false indication of one of its sensors.
!
!
DIMENSIONAL VIEW

NC
NO
MOTORIZED
DAMPER
LOW VOLTAGE
“IT’S RAINING”
APPLICATION
LINE VOLTAGE CONTROL “IT’S RAINING” APPLICATION
NC
NO
PWR2
COM
RG-11
PWR1
SWITCH ON
RELAY
CONTACTS
POWER IN
(DC)
PROGRAM /
COMMUNICATIONS
CONNECTOR
(NOT USED IN MOST
APPLICATION)
INTERFACE
TERMINAL
BLOCK
PROGRAMMING
DIP SWITCH
RAIN GAUGE CONNECTIONS
NC
NO
COM
RAIN
SENSING
CIRCUITS
DC IN
PWR1
PWR2
EQUIVALENT SCHEMATIC
RELAY CONTACTS
MAX 1 A,
24VDC
NC
NO
PWR2
COM
RG-11
PWR1
SWITCH ON
120 VAC
LINE IN
COM
OPEN
CLOSED
OPERATOR
SWITCH COM
12 VDC
12 VDC
TRANSFORMER
The relay output of the RG-11 is rated
for 24VDC, at 1 A. Thus, the RG-11
cannot drive a line voltage (120 VAC)
load without an external relay.
The RG-11 requires a DC supply and
may not be directly powered from the
120 VAC line.
12345678
12345678
For this example, these
switches are on:
SW 5 - Sets the sensor to
“It’s Raining’ mode.
SW 3 - Monostable extend
output for 15 mintues.
NC
NO
PWR2
COM
RG-11
PWR1
COM
RUN
12V DC
POWER
SUPPLY
12V DC, 1 A
OR LESS,
MOTOR THAT
RUNS WHEN
IT IS RAINING.
Shown are
switches 1, 2, and
5 on => only turn
on in a heavy
rainfall.
TIPPING BUCKET
REPLACEMENT EXAMPLE
NC
NO
PWR2
COM
RG-11
PWR1
12V DC
POWER
SUPPLY
COUNTER
E.G. Red Lion Cub-3
+
-
+
-
In many cases, the RG-11 may directly replace
tipping buckets in existing systems.
The switch settings shown here- all off– will
emulate a tipping bucket of 0.01”
RAIN GAUGE WIRING EXAMPLES
SWITCH ON
12345678
SWITCH ON
12345678

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