TM 10-6665-297-13&P2-5POWERSUPPLYCONNECTIONS(continued)2-5.412-VOLTLEAD-ACIDBATTERYANDCHARGER .A 12-Volt lead acid battery can be “floated” on a trickle-charger connected to the AC power supply to provide uninterrupted service for four hours (dependent on system load current), in the event of AC power failure. No transfer circuitry or switchover relays are required; connections from battery to DC + and-power input terminals of the control module assembly terminal board complete the installation.2-6DETECTOR INSTALLATIONInstallation of CD800/830 and CD802/832 Series detectors includes the following steps:1.Installing conduit or cables.2.Installing wires in conduit (3 conductors per detector assembly).3.Testing for open-circuit, or leakage conditions in conduit wires.4.Connecting conduit wires to detector.5.Installing detector assembly.6.Connecting conduit wires from detector to control unit assembly terminals.7.Testing operating voltages and compensating for conduit wire voltage drops.8.Calibrating detector and control module circuitry with a standard mixture of gas and air.9.(If required) installation of sample lines, filter traps, etc., for sample-drawing-type-detectors.2-6.1INSTALLINGCONDUITS :Install conduits between control module assembly and detector to containcable with power and detector circuit wires. The conduit fitting to which the detector is coupled must becompatible with the detector end fitting as follows:Explosion-proof and weatherproof, diffusion-samplingDetector #0023-4012:¾ -14 NPT male threadDuct-mounting, diffusion-samplingDetector #0023-4014:¾ -14 NPT female threadSample-drawingDetector #0023-4017¾ -14 NPT male thread23-96177/1/762-21
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