Page 2 - Introduction; Contents
i Introduction The Toro Wireless RainSensor system, model TWRS for rain sensing and TWRFS for rain and freezesensing, is a powerful water conservation and management tool that connects your automaticirrigation system to actual environmental factors vital to the health and maintenance of yourlandscap...
Page 3 - button that gives you manual control over the
1 The wireless sensor system is comprised of a programmable, weather-resistant receiver moduleand a sensor module with built-in transmitter. The receiver installs next to the irrigation controllerand connects to the controller’s 24 Vac power source and sensor input terminals (if equipped) or splices...
Page 4 - Step 1
Getting Started The wireless rain sensor system is designed for easy installation, setup and years of trouble-freeoperation. In most cases, the system components can be installed and fully operational withinminutes. All you will need is a Phillips screwdriver and basic do-it-yourself skills. If you ...
Page 5 - The sensor is installed using the Quick Clip; Step 5
3 The sensor is adjusted to the preferredrainfall activation level. The sensor is installed using the Quick Clip TM mounting bracket or pipe-mount adapter. The operating features are set to yourpreferences. A sensor installation site is chosen and thesystem is tested again to verify operation. Step ...
Page 6 - Receiver Module Features
4 Receiver Module Features 1 – Setup Button –Accesses the sensor system operating features. 2 – Adjust Button –Scrolls through and selects settings within the system operating features. 3 – Mast Antenna –Adjusts easily for best signal reception. 4 – Digital Display –High-resolution LCD screen provid...
Page 7 - Installing the Receiver Module; • The antenna will be unobstructed and is able to be adjusted.
Installing the Receiver Module Important: Installation of this product must comply with national and local building and electrical codes. For assistance, contact a professional irrigation system contractor in your area. The receiver module is suitable for either indoor or outdoor installation. Selec...
Page 10 - When power to the receiver is first applied, the “; Min”; Hold the sensor next to the receiver. Press and hold; Important: The test spindle must held down for
Initial System Test Before installing the sensor module, test the sensor at close range to verify operation. Once thistest has been completed satisfactorily, the sensor module can be installed. If a problem occursduring the test procedure, refer to “ Troubleshooting ” on page 22. 1. Apply power to t...
Page 11 - Sensor Module Features
9 Sensor Module Features 1– Rain Threshold Adjustment – Adjusts the rain sensor to accumulate 1/8", 1/4", 1/2" or 3/4" (3mm, 6mm,12mm or19mm) of rainfall before signaling the receiver to holdwatering. (Factory default setting 1/4" (6mm). 2– Sensor Test Spindle – Pressed to manual...
Page 12 - Installing the Sensor Module; • Strong communication signal from the sensor to the receiver.; Troubleshooting; ” on page 22 for additional information.
10 Installing the Sensor Module Choosing the right installation site for the sensor module is the key to getting the maximum benefitfrom your sensor system. Select a sensor installation site that provides the following conditions: • Unobstructed exposure to rainfall–away from overhangs, tree branche...
Page 13 - For optimum signal
11 3. Adjust the Rain sensor to the preferred rainfall threshold activation point. The settings are indicated in 1/8", 1/4", 1/2" and 3/4" on one side of the cap,and 3mm, 6mm, 12mm and 19mm on the other. First, turn the cap to alignthe stationary pin with the vertical slot. Guide the...
Page 21 - Loss of communication; symbol will be displayed. The Antenna; Prolonged Active Mode; and the Attention Required symbol will be displayed. See Figure 27.; To reset the sensor system, press the Smart Bypass button one time.
Loss of communication If the sensor system does not communicate within a 24-hour period, it willremain in its current state (Active or Monitor). To alert you to this condition,the Attention Required symbol will be displayed. The Antenna symbol and current air temperature (TWRFS only) will be flashin...
Page 23 - Sensor Module Battery Replacement
Sensor Module Battery Replacement 1. Unscrew and remove the bottom cap from the sensor housing. 2. Grasping the edges of the circuit board assembly, carefully slide the circuit board assembly out of the housing. 3. Remove the battery cover and batteries. 4. Insert two new 3V CR2032 (or equivalent) b...
Page 24 - Solving Reception Problems; field site with no obstructions.; To improve signal strength:
Troubleshooting If you encounter problems at any point in the installation process, or the components do not seemto function properly, try the Troubleshooting procedures first. If the problem is not listed or theremedy does not resolve the problem, call the Toro Irrigation help line at 1-800-664-474...
Page 26 - Specifications
24 Specifications Models: TWRS (Wireless RainSensor) and TWRFS (Wireless Rain/Freeze Sensor)Wireless Communication Range: 500' (152.4m) LOS (line-of site)Sensor Type: Industry-standard hygroscopic disc stack with adjustable rainfall sensitivitySensor Module Batteries: (2) 3V cells - CR2032 (or equiv...
Page 27 - The Toro Promise – Five-year Limited Warranty
The Toro Promise – Five-year Limited Warranty The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrants, to the owner, each new piece of equipment (featured in the current catalog at date of installation) against defects in material andworkman...