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i ` I I , ' I � - - • •- - • - �- - • -.• � � ' - - ---�---------�-�------._�.��---------�._.; ' These heads have moisture-proof reed switches th t react ; Technical Specifications ' E to an external magnet fortesting.The magnet test s mulates -•__ .___�..�:__ ___�.._._.___.,___ .____�___________ .___._�.__�..._._, a 4%to 6%smoke obscuration that places the de ctor in Environmental Considerations I an alarm condition.This test results in specific LE and RadioFrequency Noalarmorsetuponcriticalfrequenciesin i alarm circuit responses to indicate: Interference(RFI) therangefrom26MHzto950MHzatfield � • Detectorwithin calibration standards Immunity: strengthslessthan50V/m ' • Detector settings outside sensitivity standard RelativeHumidity: Upto93%,non-condensing • Detectornotoperational Temperature(operating): +32°Fto+100°F(0°Cto+38°C) This test is especially useful in environmentally un table or unclean areas. MechanicalProperties Sensitivity voltage test Color: Bonewhite These detector heads have a socket that accepts t e D1005 Dimensions(diameterx D): 4 in.x 1.25 in.(10.2 cm x 3.2 cm) Test Cable.The D1005 connects to the detector h ad and powerRequirements allows a voltmeter to read the sensitivity of the d ice. LEDs Current Two-wire:depends on control panel that must limit the The D285 and D285TH have a built-in LED that fla hes to �alarm): alarmcurrentto 100mAmaximum Four-wire:depends on detector base;refer to pertinent indicate the device is powered.The LED latches o steady basespecifications in an alarm condition. Current Two-wire:0.08 mA at 12 VDC;0.09 mA at 24 VDC (standby): Four-wire(D293E):4 mA at 12 VDC or 24 VDC ,-- -�-----�---.�.—-------------__-___ __—.__---- RMS Ripple 25%of DC input � Certifications and Approvals ,� ; (maximum): ��_...�.--.. _.______...__.___..�-- --.__.._.__... _._�_....__.,..______ ___�__w._a Voltage(in- Two-wire:8.5 VDC to 33 VDC Region Certification put): Four-wire:l0 VDC to 30 VDC USA UL UROX:Smoke-AutomaticFire etectors Trademarks (UL268andA),UROX7:Smoke- utomatic Trademark names are used throughout this document. In FireDetectorsCertifiedforCan da most cases,these designations are claimed as trademarks (cULus) or registered trademarks in one or more countries by their CSFM 7272-1615:134 respective owners.Rather than placing a trademark symbol NYC-MEA 274-93-E,Vol.VII in every occurrence of a trademark name, Bosch Security Systems, Inc. uses the names only in an editorial fashion MSFM and to the benefit of the trademark owner with no intention Hong Kong HKFSD of infringing the trademark. Chamber Check is a registered trademark of Bosch Security Systems in the United States. ;Installation/Configuration Notes f Note Smoke detectors are intended for de ection circuits that protect people.Heat det ctors are appropriate for circuits that protect roperty. Mounting The D285 smoke detector head and D285TH smo e and ' heat detector head are parts of a compound devi e.The detector base installs over a back box and contai s all the wiring.The detector head attaches to the base b aligning the head with the base and turning it clockwise. o tools are required for installation other than the hex k used to tighten the optional tamper screw. Wiring The terminal block accepts up to 12 AWG (2.3 m ) wire.