The Sigma Si range of status indicators provides comprehensive visual status information for Sigma XT and XT+ extinguishant release control systems. All models feature high-brightness LED indicators showing Manual Only, Automatic & Manual, Hold Operated, Disabled, Imminent, and Released conditions. Selected models additionally provide zonal fire indication and a common fault indicator.
For applications requiring local control, variants are available with integrated Automatic/Manual mode selection and manual extinguishant release controls. All models include monitored inputs for remote Automatic/Manual mode selection and Hold switches. A large LED display is fitted as standard, providing a clear countdown in seconds showing the remaining time before extinguishant discharge.
Key Features
Certified compliant with BS EN12094-1 when used with Sigma XT control equipment
High-brightness LED indicators
Detailed visual indication of control panel status
Monitored data connection
LED countdown timer indicating time remaining to release
Manual Only and Automatic & Manual mode select keyswitch options
Four-wire connection for data and power
Optional protected dual-action manual release switch
Optional zonal fire and common fault indication with audible buzzer
Robust, high-quality enclosure
Easy-access terminals
Monitored remote Auto/Manual door interlock input
Monitored remote Hold input
Internal fault diagnostic indicators
Weatherproof IP65 versions available
Internal buzzer