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SA <br /> OP -7"M/P®TTERoVz PHOTOELECTRIC SMOKE <br /> The Symbol of Protection SENSOR <br /> Operation <br /> The PSA is an analog addressable sensor that uses one address on the Signaling Line Circuit(SLC)of a compatible fire alarm control panel.The <br /> unit communicates with the control panel as it is polled.The LEDs flash every time the unit is polled and they will latch steady if the unit is in <br /> an active status. <br /> The PSA is a proven design being in service throughout the world.The PSA with the AB-4 or AB-6 base has a low profile of less than two(2) <br /> inches to blend into the surrounding environment.The sensor includes an insect screen to prevent foreign objects from reaching the chamber and <br /> the entire unit can be cleaned with a simple vacuum. <br /> Sensor Sensitivity <br /> The PSA and the compatible control panel work in tandem to keep the sensitivity consistent.As the sensor is installed over time,the sensor com- <br /> pensates for the dirt in the unit until it is out orrange.At that time,the panel will indicate a dirty sensor.The sensor will then have to be cleaned <br /> or replaced. <br /> Anytime the PSA is being polled,the sensitivity may be viewed or printed from the control panel. <br /> Note:As required by NEPA,do not install the sensors until all construction is complete and the work area has been thoroughly cleaned.If the <br /> sensors have been installed in a construction environment,they should be cleaned or replaced before the system is placed into service. <br /> Spacing <br /> The PSA is UL/ULC listed with a recommended maximum spacing of 30 feet.Refer to NFPA 72 for specific information regarding detector <br /> spacing,placement and special applications. <br /> Compatible Bases <br /> All bases will mount on a single gang,double gang,octagon,4"square or mud ring electrical box. <br /> Device Description <br /> AB-4 4"Standard Base <br /> AB-6 6"Standard Base <br /> AIB 6"base with an isolator module included.The base is pre-wired with a pluggable jumper to the module. <br /> ARB 6"base with a dual relay module included.One relay is rated for 8 amps at 240 VAC/30 VDC and the second is <br /> rated for 2 amps at 240 VAC/30 VDC.The base is pre-wired with a pluggable jumper to the module. <br /> ASB 6"base with sounder module included.Sound pattern is provided from external source.The base is pre-wired <br /> with a pluggable jumper into the module. <br /> PRINTED IN USA MKT.98830015-REV C PAGE 2 OF 2 <br /> 06/13 <br />