ALARM ANNUNCIATOR SERIES SN 20

ALARM ANNUNCIATOR SERIES SN 20 Salient Features" Microprocessor based design." Min 6 & Max 12 channels." Potential free contacts as Input." Relay change-over contact output for external hooter." Group of super bright LEDs for Window Indication." Optically isolated input circuit." RS 485 / RS 232 Communication Port." Reliable, compact, accurate operation." Low maintenance DescriptionElectronrts series AN-20 are alarm annunciator specially used for various industrial applications. It is a central collection point of a persistent surveillance system watching sensing devices of many types & functions. Pressure & temperature switches, under / over voltage relays, status contacts and many other unrelated devices actuate the annunciator by means of their respective electrical contacts. This annunciator is reliable & compact system as per standards. Multi-coloured windows provided for easy differentiation of trip & non-trip or alarm & trip faults. System accepts potential free contacts as its input which may be of NO / NC type selectable by DIP switch. System incorporates a group of super bright LEDs instead of twin filament lamps in each window and specially designed power supply for high noise and wide input supply variations.Technical SpecificationsNo. of Channels: min. 06 No. to max 12 no. (Can go up to 40 nos)Type of Input: Potential free Contact (24 V DC excited)Type of Output: Potential free Relay Contact for external hooterContact Rating: 1 c/o, 1 Amp. @ 230 V ACWindow Indication: Group of super bright LEDsWindow Size: 45 x 45 mmFlashing Frequency: 40 flashes / minFunction: TEST, ACCEPT, RESET on front fasciaPower Supply: 230 V AC, 50 Hz +/-10%, single phasePower Consumption: <10 VAIsolation: 1.4 KV between Input & Power SupplyResponse Time: <20 mSecTemperature Coefficient: +/- 0.01% peroCEnclosure: MS Powder CoatedDimensions: 192 (H) x 192 mm (W) x 200 (D) in mm approxMounting: Flush of the PanelWeight: 3 kgOperating Conditions: Temperature 0 to 55oC / Humidity 5 to 95% non condensingOPTIONALCommunication Port: RS 485 / RS 232 supporting MODBUS RTU protocolExternal Hooter: 96 x 96 mm, panel mount typeLegend: per window