WFDE SYSTEMSENSOR | Alldatasheet

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Technical content

Features

Compliant with Construction Products Directive EC Certifi cate Number 0786-CPD-40151 WFD30-2E models install in 50.8mm (2”) hole sizes IP54 rated enclosure Sealed retard mechanism assures that the retard is not contaminated by dust and dirt when the cover is removed Visual switch activation permits installer to accurately set the retard even under extremely noisy conditions Rugged, dual SPDT switches are enclosed in a durable terminal block for added strength 100% synchronization activates both alarm panel and local bell simultaneously

Engineering Specifi cations Vane-type System Sensor WFDE series waterfl ow detectors shall be installed on system piping as designated on the drawings and/or as specifi ed herein. Detectors shall mount on any clear pipe span of the appropriate nominal size, either a vertical upfl ow or horizontal run, at least 15 cm (6 in.) from any fi ttings, which may change water direction, fl ow rate or pipe diameter, or no closer than 61 cm (24 in.) from a valve or drain. The detector shall respond to waterfl ow in the specifi ed direction after a preset time delay, which is fi eld adjustable. The delay mechanism shall be a sealed mechanical pneumatic unit with visual indication of actuation. The actuation mechanism shall include a polyethylene vane inserted through a hole in the pipe and connected by a mechanical linkage to the delay mechanism. Outputs shall consist of dual SPDT switches (Form C contacts). Two conduit entrances (one of which is a knockout type) for standard fi ttings of commonly used electrical conduit shall be provided on the detectors. A grounding provision is provided. WFDE waterfl ow detectors shall be approved by Factory Mutual, LPC, VdS and SSL. Waterflow Detector Specifications 3825 Ohio Avenue • St. Charles, IL 60174 Phone: 800-SENSOR2 • Fax: 630-377-6495 ©2006 System Sensor. Product specifi cations subject to change without notice. Visit systemsensor.com for current product information, including the latest version of this data sheet. A05-0243-007 • 7/06 • #1679 Standard Specifi cations Static Pressure Rating LPC: 17.25 BAR (250 PSI) VdS: PN16 (16 BAR, 232 PSI) Triggering Threshold Bandwidth (Flow Rate) 30–57 liters/minute Contact Ratings; Two sets of SPDT (Form C) 10.0 A @ 125/250 VAC

2.5 A @ 24 VDC

Conduit Entrances Two openings 22.2mm (.875 in.) diameter. One open, one knock-out type Operating Temperature Range 0°C to 68°C (32°F to 155°F) Enclosure Rating IP54 U.S. Patent Numbers 5,213,205; 4,782,333; 3,845,259 Warranty 3 Years 200 5 10 15 25Dial setting Delay adjustment dial Dial setting equals delay in seconds. Reference only. Delay Adjustment Dial NOTE: Common and B connections will close when vane is deflected, i.e., when water is flowing. Dual switches permit applications to be combined on a single detector. CONTACT RATINGS 125/250 VAC

24 VDC

10 AMPS

2.5 AMPS

B COM To power source compatible with bell local bell WFDE switch assembly Typical Local Bell Connection Break wire as shown for supervision of connection. DO NOT allow stripped wire leads to extend beyond switch housing. DO NOT loop wires. T16-0010-XXX A COM B COMCOM SWITCH 1 SWITCH 2 AA BB –CAUTION– ROUTE WIRING AWAY FROM SHARP EDGES & COMPONENTS SWITCH SCHEMATIC “READY” STATE WFDE Field Wiring DiagramCompatible Pipe Model Ref. Pipe Size mm (in.) Nominal Pipe O.D. (mm) Wall Thickness (mm) LPC VdS LPC VdS Shipping Weight Model WFD20E WFD25E WFD30-2E WFD40E WFD60E WFD80E 1.85 kg (4.08 lbs.) 2.05 kg (4.53 lbs.) 2.36 kg (5.20 lbs.) 3.03 kg (6.68 lbs.) 3.45 kg (7.70 lbs.)

Ordering Information

WFD20E 50mm (2”) 31.8mm (1¼”) WFD25E 65mm (2½”) 31.8mm (1¼”) WFD30-2E 80mm (3”) 50.8mm (2”) WFD40E 100mm (4”) 50.8mm (2”) WFD60E 150mm (6”) 50.8mm (2”) WFD80E 200mm (8”) 50.8mm (2”)