System Sensor LFD Series

Accuflow Series Flow Rate Detectors Available Parts wrench tamper kit kit cover removed Overview use in wet pipe water mist systems with 2 to 4 inch stainless and brass pipe state retard assures precise accuracy selections simplify settings two wire design connection to a local bell and or addressable systems 4 rated switches activate the alarm panel and local simultaneously Sensor Accuflow Low Flow Rate detectors are a new line of solid state detectors designed for use in wet pipe water mist systems where low detection is required Construction Accuflow low flow detectors consist of a rugged enclosure for and outdoor use Like all System Sensor waterflow detectors low flow models across a wide temperature range from 32 to 120 0 to 49 Performance Accuflow low flow detectors are intended for applications flow detection of 3 GPM or greater is required By incorporating a solid state proper sensitivity timing accuracy and switch resetting is assured Alarm Immunity The solid state circuitry of Accuflow low flow detectors greater timing accuracy over traditional mechanical retard designs This minimizes the risk of false alarms created by pressure surges or air trapped the sprinkler system Operation Accuflow low flow detectors are designed to simplify installa Wired like traditional waterflow detectors these models do not require the to run an additional third wire Two conduit openings permit easy attach to the local alarm system Specification flow rate vane type waterflow detector with solid state retard shall be an Accuflow model number by System Sensor and shall be installed on system piping as designated on the drawing and or as specified Detectors shall mount on a stainless steel clear pipe span of the appropriate nominal size either on a vertical upflow horizontal run at least 6 from any fittings which may change water direction flow rate or pipe diameter or no closer 24 from a valve or drain Detectors shall be compatible with 2 through 4 diameter stainless steel and brass pipe shall have a sensitivity of 3 gallons 11.35 liters per minute minimum and a static pressure of 450 psi for 2 4 pipes The detector shall respond to water flow in the specified direction after a preset time delay The delay mech shall be a solid state unit which is field adjustable via a dipswitch The detector actuation mechanism shall include a vane inserted through a hole in the pipe and connected by a mechanical linkage to the delay mechanism shall consist of one SPDT switch Form C contact and one SPST switch normally open contact for wiring to an panel or addressable control module and local bell and or notification device Two conduit entrances one knockout for standard fittings of commonly used electrical conduit shall be provided on the detectors A grounding provision shall provided Unless noted enclosures shall be NEMA 4 listed by Underwriters Laboratories Inc for indoor or outdoor use Ratings SPDT Form C SPST normally open A 125 VAC A 30 VDC Range DC FWR VAC Draw microamps 12 24 V DC FWR microamps 120 VAC Entrances openings for 1 2 conduit one open one type Temperature Range 120 0 to 49 Rating 4 suitable for indoor outdoor use Tamper Switch part no 546 9000 Weight lbs 1.8 kg lbs 1.9 kg lbs 2.0 kg lbs 2.1 kg lbs 2.3 kg Use mist systems where low flow detection required years Patent No Specifications Pressure Rating PSI Threshold Bandwidth Flow Rate GPM 11.35 liters minute Surge Feet Per Second FPS Pipe steel and brass water pipe through 4 refer to Ordering Information Dimensions Installed bolt nut saddle bolt See Table Information vane Number Numbers Pipe O D and Wall Thickness Size Part Number 60.3 mm OD 3.9 mm to 4.5 mm 73.0 mm OD 4.8 mm to 5.2 mm 1 1 4 76.1 mm OD 4.3 mm to 4.7 mm 1 1 4 88.9 mm OD 5.0 mm to 5.6 mm 114.3 mm OD 5.4 mm to 6.4 mm tamper switch kit proof wrench for cover kit Sensor Sales and Service Sensor in Canada 905.812.0767 905.812.0771 Sensor Headquarters Ohio Avenue Charles IL 60174 800 SENSOR2 630 377 6495 On Demand x3 www systemsensor com 2000 System Sensor The company reserves the right to change product speci without notice Sensor in Europe 44.1403.276500 44.1403.276501 Sensor in China 86.29.524.6253 86.29.524.6259 Sensor in Singapore 65.273.2230 65.273.2610 Sensor in the Far East 852.21919003 852.27366580 Sensor in India 91.11.558.2119 91.11.567.6815 Sensor in Australia 613.54.281.142 613.54.281.172