senvainc.com 1-866-660-8864 (F)1-503-296-2529 9290 SW Nimbus Ave. Beaverton Oregon 97008 WD-1, WD-2 Water Detector 9-30VAC/DC Power, Isolated N.C. switch output DIMENSIONS PRODUCT APPLICATION LIMITATION: Senva products are not designed for life or safety applications. Senva products are not intended for use in critical applications such as nuclear facilities, human implantable device or life support. Senva is not liable, in whole or in part, for any claims or damages arising from such uses. SPECIFICATIONS Power Supply9-30VAC/DC, 20mA Max. OutputN.C. (Form B) Solid State Relay, Isolated Output Rating30VAC/DC, 0.1A (100mA) Max. SensingGold plated electrodes Operating Environment-20 to 80 o C IMPORTANT WARNINGS • Only qualified trade installers should install this product • This product is not intended for life-safety applications • Do not install in hazardous or classified locations • The installer is responsible for all applicable codes • De-energize power supply prior to installation or service INSTALLATION 1. Install sensor in the area to be monitored such that probe pins will contact collected water. 2. Fasten sensor with screws provided, or other means. 3. Wire sensor as follows: RED = Power Supply 9-30VAC/DC BLACK = Ground/Common WHITE = N.C. (Form B) Switch GREEN = N.C. (Form B) Switch Switch contact is electrically isolated from power supply. OPERATION Switch output opens when sensing probe pins are bridged by water, or power is removed. Water supply must be less than 1,000k (1M) ohms. Nearly all water supplies contain sufficient disolved minerals to trigger the sensor including: Filtered, Tap, Rain, Condensate, Melted Ice, Detergent, and Salt. Not suitable for detecting distilled water. Sensing probes utilize alternating current sensing (even when powered by DC current) to prevent electrolysis and oxidation of the sensing probes. INSTALLATION INSTRUCTIONS Revised 12/21/17 Document # 152-0330-0BNext >