User manual DENNARD 883

DENNARD TYPE 880 & 883 INFRA RED ILLUMINATOR INSTRUCTION SHEET Installation Notes: (1) When the I.R. Illuminator is powered from a Dennard 12 Volt electronic transformer, it must be connected direct to the Illuminator flying lead. Do not extend the lead as the line voltage drop will reduce the light output. To replace a bulb:Remove the two M4 pan head screws located towards the rear of the cylindrical body and pull the body free The old bulb has a two pin push in fitting and is simply pulled out and discarded. When fitting the replacement bulb, care should be taken not to touch the filament glass envelope or the concave part of the reflector, as finger marks will reduce lamp life. Use genuine Dennard replacement bulbs which have been specially modified for use in I.R. illuminators. Setting up the Illuminator for correct alignment is easily achieved by loosening the two rear hex. head trunnion fixings and the single cradle mount fixing, adjusting to the desired pointing angle and re-tightening. (2) a. b. c. d. (3) Specification: Illuminator Beam Angle Bulb Weight I.R. Filter Transmission Type 880N20 Type 880M20 Type 880N50 Type 880M50 Type 883N75 12V-20WF38 12V-20WF35 12V-50WF33 12V-50WF34 12V-75WF51 spot medium flood spot medium flood spot 24 Degrees 36 Degrees 24 Degrees 36 Degrees 24 Degrees 350g 350g 350g 350g 350g Dichroic toughened glass 3mm thick 715nm or 830nm Better than 90% Electronic Transformer White 12V a.c. 230V a.c. 50 Hz Output Input Brown Type 883M75 12V-75WF50 medium flood 36 Degrees 350g Type 880 or 883 microlight Brown T.B. T.B. 200-250V a.c. 50 Hz Supply Input Blue White Blue This table shows the lux (white light) values at given distances. The camera will only receive 10% of the scene illumination Distance 1 Metre 2 Metre 4 Metre 8 Metre 16 Metre 32 Metre 64 Metre Type 880N20 1200 300 75 18.8 4.7 1.2 Type 880M20 Type 880N50 600 3600 150 900 37.5 225 9.4 56.3 2.3 14 0.6 3.5 Type 880M50 Type 883N75 2000 4800 500 1200 125 300 31.3 75 7.8 18.8 1.9 4.7 1.2 Type 883M75 2700 675 169 42.2 10.5 2.6 0.7 DENNARD DENNARD LTD 55, Fleet Road, Fleet, Hampshire GU13 8PN England Tel: + 44 (0) 1252 614884 Fax : + 44 (0) 1252 626013 Downloaded from: http://www.guardianalarms.net