Kentec K1821-49 Sigma A SI Extinguishant Status Unit - 10 Lamp Mode Select and Manual
Kentec K1821-49 Sigma A SI Extinguishant Status Unit - 10 Lamp Mode Select and ManualThe Sigma A-Si range of status indicators provides detailed status information for Sigma A-XT releasing control equipment.All models provide high brightness LED indication of Manual Only Automatic and Manual Abort Operated Disabled Imminent and Released conditions. Models are also available with zonal fire indicators and a common trouble indicator.For systems where local control of the AutomaticManual mode and or a Manual extinguishant release control are required units are available with these controls fitted. All models have supervised inputs for the remote connection of AutomaticManual mode and abort switches.All units contain a large LED display that shows a countdown of the time remaining until release in seconds.Up to seven Sigma A-SI status units can be connected to the Sigma A-XT serial bus and require just two cores for data and two cores for power. Once connected status units are supervised and the Sigma A-XT control panel will indicate a trouble condition should any unit become disconnected.Key FeaturesHigh brightness LEDsDetailed indication of the status of the Control PanelSupervised data connectionCountdown shows time remaining until releaseManual only and Automatic Manual mode selectFour-wire connection data and powerProtected dual action manual release switch optionOption for zonal fire and trouble indication with buzzerRobust high quality enclosureEasy access to terminalsRemote AutoManual door interlock input supervisedRemote Abort input supervisedInternal trouble diagnosis indicators