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TREND WS_R User Manual

Ws/r, Rain detector, Installation instructions

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WS/R Rain Detector Installation Instructions TG102665 Issue 2/D 13/03/07

Important: Retain these instructions

Installation Instructions

WS/R

Rain Detector

INSTALLATION

Mount the sensor in position. The location should provide safe access for maintenance and a suitable operating environment.

(1)

Mount the sensor on a permanent structure using
2 off 20 mm (0.79”) spacer bar saddles, available
from RS Components (608-121) as shown below.
Note that the sensing area should be mounted at
an angle of 30° to 40° to enable surface moisture
to run off.

Do not cover, allow air circulation.
Do not operate outside the ambient temperature range
(-25 °C to +55 °C) (-13 °F to +131 °F).
Do not store outside the ambient temperature range
(-25 °C to +55 °C) (-13 °F to +131 °F).

Connect the sensor’s output to the IQ controller.

(2)

Wire the sensor output (yellow) to an analogue
voltage input of the required IQ controller as
shown.

Connect the sensor’s power supply.

(3)

Connect the sensor to the IQ controller’s 24 V
auxiliary supply using the red and blue leads as
shown.

Sensor at 30° to 40° angle

Spacer bar saddles

Y

Gn

X

R

Blue

supply

signal

IQ1xx, IQ2xx

IN

0V

+24Vdc

0V

WS/R

Signal and supply 0 V linked internally

no connection

For details about particular IQ Controller auxiliary supplies see the appropriate controller data sheet.

Note that the nominal sensor supply is 9 to 12 Vdc, but the sensor is fully functional with a 24 Vdc supply.

Input

Channel

linked for

Voltage

(V)

Y

Gn

X

R

Blue

supply

signal

IQ3

N (in)

0 (0V)

+ (24V)

WS/R

Signal and supply 0 V linked internally

no connection