17 I n p u t D e v i c e s Overview The EC-50R/-100R comprises a transmitter and r eceiver in a single enclosur e and is usually installed between 19 inches and 24 inches below the ceiling. The transmitter emits an invisible infrar ed light beam that is r efected via a prism mounted dir ectly opposite and with a clear line of sight. The r efected infrar ed light is detected by the r eceiver and analyzed. Smoke in the beam path will r educe the r eceived infrar ed light pr oportionally to the density of the smoke. The detector analyzes this attenuation or obscuration of light and acts accor dingly . Detectors ar e typically mounted within ±30 feet (9.14 m) of a potential fr e sour ce. Consult your Authority Having Jurisdiction for spacing r equir ements specifc to your locality . T echnical Specifcations Beam Detector Power Supply 10.2 Vdc to 30 Vdc (continuous power) Curr ent Standby: Less than 4 mA Alarm/T r ouble: Less than 14 mA Contacts Alarm: Normally Open, rated 2A, 30 Vdc, r esistive T r ouble: Normally Closed, rated 2A, 30 Vdc, r esistive Signal Delay Alarm and tr ouble: 10 seconds Reset T ime >5 seconds (power down) Dimensions (HxWxD) 8.25 in x 5.1 in x 4.7 in (21 cm x 13 cm x 12 cm) W eight 1.5 lb (0.68 kg) Operating Envir on - ment T emperatur e: 32°F to 100°F (0°C to 37°C) Humidity: 93% RH, Non-condensing Beam Coverage W idth: 30 ft (9.14 m) either side of beam Length (EC-50R): 15 ft to 160 ft (4.57m to 48.77m) Length (EC-100R): 160 ft to 330 ft (48.77m to 100m) Alarm Thr esholds 2.50dB (25%), 3.74dB (35%), 6.02dB (50%) obscuration Standar d Featur es • Coverage: – 50R range 15 -160 ft (4.6 - 48.8m); – 100R range 160- 330 ft (48.8 - 100m) • Micr opr ocessor contr olled • Automatic drift compensation • Selectable alarm thr esholds • 24 Vdc operating voltage • Optional Gr ound Level T est Station Application Refective beam smoke detectors ar e ideal for large open ar eas such as war ehouses, hotel atriums, industrial plants and school gymnasiums. Installation and Mounting The r ecommended installation height is appr oximately 19 to 24 inches (483 to 610 mm) below the ceiling. However , in all installations the National Fir e Standar ds for that country/state must be consulted. Because of the r efecting pr operties of the beam, all objects must be kept a minimum of 19 inches (483 mm) away fr om the centr e of the beam path down the entir e beam length. If highly r efective surfaces ar e close to the beam, then gr eater clearances should be applied. Or dering Information Cat. No. Description Ship Wt lb (kg) EC-50R Refective Beam Smoke Detector c/w test flter and one r efector 2.0 (0.90) EC-100R Refective Beam Smoke Detector c/w test flter and four r efectors 2.0 (0.90) Accessories Cat. No. Description EC-LL T Remote test station 23901-01 Replacement prism r efector Refective Beam Smoke Detector E C - 5 0 R / - 1 0 0 R E C - 5 0 R