System Sensor AFD Series

S P R I N K L E R S Y S T E M S M O N I T O R I N G Series State Detectors Available Parts Cover wrench Cover tamper switch kit Gasket kit Retard PCB kit Overview state retard assures precise accuracy Switch selections simplify settings two-wire design connection to a local bell and or addressable systems with a wide range of pipe including 5 through 40 are equipped with a 4 gasket switches activate the alarm panel and local simultaneously retard assembly (cover removed) Sensor Accuflow series is a new line of solid state waterflow compatible with a wide range of pipe schedules, including 2 schedule 5. detectors can be mounted in a vertical or horizontal position. Construction. The Accuflow series consists of a rugged enclosure for indoor outdoor use. Like all System Sensor waterflow detectors, Accuflow models oper- across a wide temperature range, from 32 to 120 (0 to 49 Performance. Accuflow detectors incorporate a solid state retard to ensure accurate timing. Designed for use within conventional and addressable alarm systems, Accuflow detectors include connections for both the panel or module, as well as a local bell or notification device. Alarm Immunity. The solid state circuitry of the Accuflow series provides great- timing accuracy over traditional mechanical retard designs. This accuracy mini- the risk of false alarms created by pressure surges or air trapped within sprinkler system. Operation. Accuflow detectors are designed to simplify installation. Wired traditional waterflow detectors, the Accuflow series does not require the installer run an additional third wire. Two conduit openings permit easy attachment to the alarm system. Specification waterflow detector with a solid state retard shall be an Accuflow Series model number __________ manufactured by System and shall be installed on system piping as designated on the drawing and/or as specified herein. Detectors shall mount on any pipe span of the appropriate nominal size, either on a vertical upflow or horizontal run, at least 6 from any fittings which may water direction, flow rate, or pipe diameter, or no closer than 24 from a valve or drain. Detectors shall be compatible with sched- 5 through 40 for 2 diameter pipe, schedule 7 through 40 for 21/2 6 diameter pipe and schedule 10 through 40 for 8 diameter pipe. shall have a sensitivity in the range of 4 to 10 gallons per minute and a static pressure rating of 450 psi for 2 8 diameter The detector shall respond to water flow in the specified direction after a preset time delay. The delay mechanism shall be a solid unit which is field-adjustable via a dipswitch. The detector actuation mechanism shall include a polyethylene vane inserted through hole in the pipe and connected by a mechanical linkage to the delay mechanism. Outputs shall consist of one SPDT switch (Form C con- and one SPST switch (normally open contact) for wiring to an alarm panel or addressable control module and local bell and/or noti- device. Two conduit entrances (one knockout type) for standard fittings of commonly used electrical conduit shall be provided on detectors. A grounding provision shall be provided. Unless noted, enclosures shall be NEMA 4 listed by Underwriters Laboratories, Inc. indoor or outdoor use. Specifications Pressure Rating PSI Threshold Bandwidth (Flow Rate) 10 GPM Surge Feet Per Second (FPS) Pipe water pipe, schedule 5 through 40 6 schedule 7 through 40 schedule 10 through 40 Dimensions Installed bolt nut saddle bolt vane Model