BETA-Mk 2 Fire alarm control panel Manual 1
Introduction Beta / Two wire system BETA-Mk 2 Range of fire alarm control panels are designed and manufactured to meet the requirements of B.S.5839 pt4 (EN54). Standard control panel is a robust construction using plug-in cards for ease of maintenance and. There are two types of plug-in cards in the standard system. Card 1699 is an 8 zone mother board. Card 1700 is an 8 zone detection board. All fitted in a robust metal enclosure. Each detection circuit operates on an open circuit principle and is monitored using an active end of line unit (To allow removal of a detector without disconnecting rest of the circuit, See drawing AC395. In this mode detector base will require to be fitted with a Diode). Each circuit is also capable of accepting sounders up to a load of 150mA. Any short or open circuit in the detection / sounder line immediately is detected and indicated as common fault on the front of panel and individually indicate on the top board. Two common sounders are provided for standard panels. Each sounder circuit is constantly monitored for short circuit and open circuit using an active EOL. Each circuit is also protected by a 0.5A fuse. Any sounder fault will indicate as Common fault on front of panel and individually indicate on the mother board. Should an alarm condition be initiated by a detector or a manual call point, Twin red FIRE led s indicate in that zone. Internal buzzer will sound and two sounder circuits will activate. Sounder circuits can be silenced or recalled at any time during the period between fire detection and system reset. Sounders will reactivate automatically if any other zone is activated. Sounders can be tested by pressing the TEST / EVACUATE Button. D.C. Power supply and battery charger are integral part of the control panel with space for 3.2Ah S.L.A. 24volt Batteries. Standard charger is of constant voltage 27.5V Current limited at 1A (For standard panels of up to 8 zones). Charger supply and battery supply are constantly monitored for failure. Failure of mains / charger or batteries will be indicated by common fault on the front of panel and individually indicate on the mother board. 2
Specification Indicators Mains healthy: Battery fault, mains, charger fault Common fault Common Sounder fault: Detection line fault: Fire Engineer s walk test Twin green led s Led on board Twin Yellow led s Two led s on board (one for each sounder) Yellow led s on board for each zone Twin red led s per zone led on board Switches Reset button Test / Evacuate button Sounder silence button Internal buzzer silence button Zone isolate slide switches per zone (on board) Engineer s walk test slide switch (on board) Repeater outputs Fire output for every zone (Negative going signal 25mA max.) Fault output common (Negative going signal 25mA max.) Buzzer output (Negative going signal 25mA max.) Reset switch output Test / Evacuate switch output Sounder silence switch output Buzzer silence switch output All switches must be normally open and one side going to 0 volt Aux. 24v output: 200mA max. (Must not be used for permanently activated load). Aux. Relay volt free contacts: sets of change over contacts (Activate with any fire) Contacts rated at 1Amp / 30V DC. resistive (Do not use for mains supply switching) 3
Electrical Mains supply: Standby supply: Sounder circuits: Auxiliary relay: Quiescent current: Detector line voltage: 220 240 V A.C. 50 Hz Fused at 1Amps 24v SLA batteries Float charged by integral supply / charger 0.5Amp current limited at 1A. Space for 3.2Ah inside the standard panel For larger supply or / and batteries External power supply / charger should be Specified. Two common sounder circuits are supplied As standard as well as any detection zone being one Fused at 0.5A each (Limited to total available power) One sets of volt free change over contacts Rated at 1A / 30VDC(Resistive) 50mA basic current plus 5mA per zone 18Volts DC in quiescent state Construction Wall mounting case. Sheet metal construction with hinged lid. Powder finished appliance white. Dimensions Control panel (Surface mount) 355mm W x 255mm H x 85mm D Control panel (Flush mount) Front panel: 395mm W x 295mm H Back box: 350mm W x 250mm H x 80mm D 4
Installation Information 1) Simply fix the box to an appropriate location. 2) Knock out relevant 20mm knock outs and wire according to the local fire regulation. 3) Enter appropriate cables ie. Mains supply, Alarm sounders, Detector lines and any other cables necessary. Then place chassis back in case and locate. 4) Connect cables to terminals using schematic diagram for details. (Any cable insulation testing should be carried out before cables being connected to control pane terminals). Do not switch on the power at this point. 5) Remove resistors provided in detection zone terminals and place them at the end of detection lines (Do not use the resistors if active end of lines are being used, see drawing AC395) If 2k2 end of lines are being used, do not fit diodes in the detector bases. If active end of lines are being used, do fit diodes in the detector bases. Remove resistors provided in alarm sounder terminals and place them at the end of alarm sounder lines. 6) Test should be carried out if possible using mains powered supply not batteries at this point. Batteries should be connected to the system when cable faults are removed. 2x12v rechargeable sealed lead acid batteries should be used. Please ensure that batteries are connected in series to provide 24v D.C. and avoid wrong polarity. Connecting the batteries in wrong polarity will damage the equipment. 7) Maximum alarm load must not exceed 0.5A per circuit (limited to total available power). 8) Under no circumstances should a MEGGER or any insulation tester be used once cables are connected to control panel and / or detector bases. End of line units also will be damaged by use of insulation testers. 9) BS 5839: In order to comply with BS 5839 pt1, both alarm circuits and detection lines muse be wired in an appropriate physically protected cable. All circuits must be wired in a continuous line without spurs or branches, if monitoring circuits are to be effective. 5
Operating Instruction BETA Mk 2 Range of Fire Alarm Control Units. Normal When the unit is healthy only the green Mains Healthy lamp will be on. Line Fault Yellow Common Fault lamp on the panel is on, on board an appropriate yellow fault lamp is lit. this could mean that a detector has been removed or that the circuit has been broken or short circuited. It could also mean one or more zones are Isolated. Check that all detectors are fitted and if fault persists contact your service engineer as soon as possible. On initiation of a Detector Line Fault the internal sounder will sound. The sounder may be silenced by pressing Buzzer Silence. The Detector Line Fault lamps will stay on until the fault is corrected. Mains Failure If the electrical supply fails, the green Mains Healthy lamps will go out. supply fault led on mother board will come on. common fault led will come on the front panel. Action should be taken as soon as possible to restore the mains supply. The system will continue to operate on its own internal batteries for 24 Hrs (If appropriate size batteries are used). Battery Supply Failure and Charger Failure In the event of a failure of either the internal batteries or the associated charger unit, the supply fault led will indicate on board, common fault led will light on the front panel. internal sounder will start, and may be silenced by pressing Buzzer Silence. Your service engineer should be contacted to rectify the system fault. The system will continue to operate on mains supply only. Alarm Circuit Fault Should the wiring connecting the alarm bells become damaged or broken, the yellow common fault lamps will come on the front panel, and on board sounder fault led will 6
light. The internal sounder will start. The internal sounder may be silenced by pressing Buzzer Silence. Your service engineer should be contacted as soon as possible. Fire When a break glass unit is operated or an automatic detector detects, two red Zone Fire lamps will come on. Simultaneously the internal sounder will start, the bells will sound and you should now carry out your normal fire drill. To Silence The Alarms Should you wish to silence the alarm bells, press Silence Sounders button. The internal sounder remains On. The internal sounder will not silence by pressing the Buzzer Silence. To Reset The System Replace any broken glasses in the break glass units around the building and ensure that any fire condition, smoke for example, has cleared. Press the Reset button only. If active end of line units are used, after reset zone fault LED S may turn on for a period of up to 2 seconds. Testing To test that the alarm bells are working, or to operate them independently of any fire condition press Test/Evacuate button. Testing the system using engineer s walk test ( Auto reset). Switch the slide switch marked Engineer s walk test, Auto reset to ON position. Cary out test by testing call points, detectors etc. You will hear the sounders activating for a few seconds and reset automatically. Return the slide switch back to OFF position when finished. Isolating Detection Zones Detection zones can be isolated individually by sliding the isolate switches (isolate switches are located on the main PCB, directly below the terminal blocks, Isolating a detection zone is indicated by common fault two yellow fault LED S and the appropriate fault led on board and internal buzzer (internal buzzer can be silenced if necessary by pressing Buzzer Silence switch) During this time the isolated zone will not accept any incoming fire signals. Isolator switch must be put back to normal as soon as possible, and this is identified by extinguishing of yellow fault LED S. 7