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Smoke Detectors

S-Quad Dual Optical & Heat Sensor

S-Quad Dual Optical & Heat Sensors are truly intelligent analogue sensor combining local processing in the sensor and the panel to achieve an immediate response to real fi res whilst minimising the risk of false alarms.

S-Quad Dual Optical & Heat Sensors are truly intelligent analogue sensor combining local processing in the sensor and the panel to achieve an immediate response to real fi res whilst minimising the risk of false alarms. The optical sensing is performed by the dual angle optical chamber, which has two transmitting LED1 and LED2, plus an infrared receiver. Normally measurements are taken at regular intervals at both angles of the chamber. The panel uses both readings to form a ratio. The ratio is used to compensate the optical sensor, producing a very flat response to different fire types. There are distinct bands of ratios that define the presence of types of smoke, dust or steam. The dual optical sensor is therefore able to discriminate between certain aerosol in the environment. Additionally to stop the sensor saturating with large false alarm signals the sensor incorporates an extended dynamic range. The sensor is therefore suitable for use in wider applications where steam and dust particles may occasionally be present.

Features & Benefits:
  • Complete range of sensors with combinations of advanced sensing technologies including heat, dual angle optical scatter and carbon monoxide (CO)
  • Combined sensing of carbon monoxide with dual angle optical scatter and heat allows a higher level of false alarm immunity in presence of steam and while still maintaining the integrity of detecting fi res
  • Each sensor has certified sensitivity settings that suit certain environments/ applications and may be programmed for different times of the day if required
  • Short circuit Isolator in each device
  • Configurable input/ output connection for remote indicator or supervisory input fully synchronised sound patterns via the control panel
  • Sensor sounders have adjustable sound level and tones to match system sounders
  • Sounder element monitoring and over-load protection to ensure operation even in event of cable fault
Certifications:
  • LPCB approved
  • CE
Installation Instructions
Name
Description
File Size
Date
Size
Vigilon Plus Consultant's Specification Guide
application/pdf 863.92 KB
2/17/2022
863.92 KB
Gent Nano Consultant's Specification Guide
application/pdf 496.03 KB
2/17/2022
496.03 KB
Data Sheet
Name
Description
File Size
Date
Size
S-Quad Sensor and SensorSounder Datasheet
application/pdf 503.89 KB
8/16/2022
503.89 KB
Declarations of Performance
Name
Description
File Size
Date
Size
S4-911, 711, 720, 771 and 780 Declaration of Performance
application/pdf 587.69 KB
2/14/2022
587.69 KB
Name
Description
File Size
Date
Size
S4-911, 711, 720, 771 and 780 Declaration of Performance
587.69 KB
2/14/2022
587.69 KB
Vigilon Plus Consultant's Specification Guide
863.92 KB
2/17/2022
863.92 KB
Gent Nano Consultant's Specification Guide
496.03 KB
2/17/2022
496.03 KB
S-Quad Sensor and SensorSounder Datasheet
503.89 KB
8/16/2022
503.89 KB
Name
Description
File Size
Date
Size
Vigilon Plus Consultant's Specification Guide
863.92 KB
2/17/2022
Gent Nano Consultant's Specification Guide
496.03 KB
2/17/2022
S-Quad Sensor and SensorSounder Datasheet
503.89 KB
8/16/2022
S4-911, 711, 720, 771 and 780 Declaration of Performance
587.69 KB
2/14/2022
Image
SKU
Description
alt
S4-711
Dual Optical & Heat Sensor: O2H: 1 2 4 Analogue Channels
Image
SKU
Description
alt
S4-711
Dual Optical & Heat Sensor: O2H: 1 2 4 Analogue Channels