System Sensor 6424 Manual

3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 AND MAINTENANCE INSTRUCTIONS Seconds Max Seconds Max to 330 Feet 9.1 to 100.6 m Total Obscuration or Total Obscuration to 60 Feet 9.1 to 18.3 m or More Obscuration Initial Alignment limit reached service needed Filters ALARM NO ALARM Alarm Reset Switch Test and Reset Switch Capability with RTS451 Test Station with Magnet Operation Aid Trouble Output Local LED red Output Local LED yellow LED flashing green Bar Graph 4 red LEDs to 131 to 55 to 93 RH Noncondensing lbs 680 g 1.3 lbs 590 g or Wall Separate Mounting Brackets Provided with Attached Cable Horizontal 60 Vertical Horizontal 60 Vertical Projected Beam Type Detector Time Condition Features Angle Receiver Ripple Voltage 24 VDC Contacts Time Time after 5 min reset 1 Minute Maximum Loss Transmitter Ripple Voltage Current 24 VDC to 32 VDC volts Peak to peak Standby Alarm Trouble 27.1mA Max Surge at 30 VAC DC Seconds Max Max Max Max Memory for 5 Minute Minimum to 32 VDC volts Peak to Peak Max IN MEXICO Installing thoroughly read this manual and applicable sections System Sensor Projected Beam Detector Application Copies of this manual are available from System Description Sensor Model 6424 is a long range projected beam detector designed to provide open area protection is to be used with UL listed separately supplied power control panels only The detector consists of a transmitter and receiver Smoke entering the area the transmitter and receiver causes a reduction in at the receiver When the obscuration reaches one of predetermined thresholds chosen with a switch in the the detector generates an alarm signal Complete of the beam causes a trouble signal to avoid false Slow changes in obscuration due to a build up of or dust on the lens of the detector are compensated for a microcontroller which continuously monitors the sig strength and periodically updates the alarm and trouble When the self compensation circuit reaches its the detector generates a trouble signal indicating the for service LEDs at the receiver indicate the status of the detec a red LED for alarm a yellow LED for trouble and a green LED for standby operation The alarm signal and can be reset by a momentary power interrup by using the remote reset input to the receiver if the remote test reset station model RTS451 or with local reset button located behind the rear door in the A trouble signal automatically resets upon remov the cause of trouble In addition to these indicators are four LEDs on both the receiver and the transmit which are used as a beam alignment aid No additional is needed for alignment of the beam detector contains one Form A normally open con for alarm signals and one Form B normally closed for trouble signals Supervision of power is accom by installing a Power Supervisory End of Line Relay model A77 716 at the end of the detector power When power is applied to and through the detectors EOL Power Supervisory Module is energized The relay along with the detector trouble relay contacts provide a closed series circuit in the control panel loop A loss in power or a trouble condition the detector causes the respective EOL or trouble relay to resulting in a trouble signal at the control panel List Unit Unit Wiring Cable Wiring Cable Mounting Bracket Mounting Bracket inside part Mounting Bracket outside part Bracket Screw Bracket Screw Wrench Manual Filter Exit Plug Plug Placement section of the manual discusses the placement of pro beam detectors Though this information is based industry expertise it is intended to be used only as technical guide Always comply with the requirements of codes and standards such as NFPA 72 National Alarm Code as well as directives of the Authority Jurisdiction AHJ For general information on placement of detectors read System Sensor Projected Detector Application Guide beam detectors are usually located with their parallel to the ceiling However they can be mount vertically or at any angle to protect the area involved beam detectors sense the smoke buildup over a dis they are ideal for locations with high ceilings They also be mounted on a wall or ceiling below the level a spot type detector reducing the effects of air stratifica Some typical locations would include large areas with ceilings such as atriums warehouses and factories Projected beam smoke detectors should always mounted to stable mounting surfaces See the LOCATION section for details fire codes specify spacing on a given center to center between detectors under ideal conditions These are based on rooms with smooth ceilings and no obstructions between the contents being protected the detectors Moreover they are also based on a maxi ceiling height and on the assumption that the value the combustible nature of the contents of the room protected do not warrant greater protection or closer IN MEXICO a room with a smooth ceiling detectors should be spaced 30 and 60 feet One half that spacing between the and the sidewall may be used as a guide See Figure The beam detector can be mounted with the receiver one wall and the transmitter on the opposite wall or suspended from the ceiling or any wall ceiling com In the case of the ceiling mount the distance the end walls should not exceed one quarter of the spacing 7.5 ft maximum if the spacing is 30 ft Figure 2 1 Spacing for smooth ceiling side view S 3 Sloped ceiling shed type FT MAX S MAX in DETECTOR IN THIS AREA 4 Sloped ceiling peaked type 2 Spacing for smooth ceiling top view S FT S MAXIMUM S FEET MINIMUM FEET MAXIMUM S FT Locations detectors require a stable mounting surface for operation A surface which moves shifts vibrates warps over time will cause false alarm or trouble condi Initial selection of a proper mounting surface will false alarms and nuisance trouble signals the detector on a stable mounting surface such as concrete a sturdy load bearing wall support col structural beam or other surface that is not expected experience vibration or movement over time DO NOT the beam detector on corrugated metal walls metal walls external building sheathing external suspended ceilings steel web trusses rafters non beam joists or other such surfaces the case of peaked or sloped ceilings codes may specify of detectors by using horizontal spacing from the of the roof or ceiling Figures 3 and 4 show the spac for both the shed type and peaked type sloped ceilings smooth ceilings beam smoke detectors should gener be mounted between 12 and 18 inches from the ceiling many cases however the location and sensitivity of the shall be the result of an engineering evaluation includes the following structural features size and of the room and bays occupancy and uses of the ceiling height ceiling shape surface and obstructions ambient environment burning characteristics the combustible materials present and the configuration the contents in the are