S4-710 Gent S-Quad Optical Heat Detector

Gent S4-710 Multi-Sensor Detector | BS 5839-1:2025

The Gent S4-710 multi-sensor detector is a high-performance fire detection device designed for modern addressable fire alarm systems. Combining optical smoke, CO and heat sensing, it delivers fast, reliable detection while minimising false alarms in challenging environments.

Engineered for use on Gent Vigilon loops, the S4-710 is ideal for high-density systems where accuracy, flexibility, and low power consumption are critical.

At a Glance

• Multi-sensor detector (optical smoke, CO + heat)
• Built-in short-circuit isolator
• Advanced dual-angle optical scatter technology
• Programmable sensitivity and time-of-day operation
• Compatible with Gent S-Quad shallow and deep bases
• Fully compliant with EN54 standards

Technical Specifications

System Design & Loop Loading

The S4-710 is optimised for Gent Vigilon loops, supporting up to 200 addressable devices per loop.

Each detector counts as one load unit, with no additional load from the base. This allows for efficient loop design, particularly in larger systems where maintaining capacity and performance is critical.

System Compatibility & Required Accessories

The S4-710 is fully compatible with the Gent Vigilon ecosystem, including:

• S4-700 Common Base (Shallow & Deep)
• Gent Compact Plus (COMPACT-PLUS) Panels
• VIGPLUS-24 Control Panels

It also supports:

• Remote indicator connections
• Loop-powered system configurations
• Flexible installation depending on environmental protection requirements

How the S4-710 Works Within a Gent System

The S4-710 connects directly to the Gent addressable loop, where each device is assigned a unique address for individual monitoring and control.

Using a combination of optical smoke and heat sensing, the detector continuously analyses its environment. When a fire condition is identified, it sends a signal to the control panel, which then activates programmed outputs such as sounders and visual alarms.

The device also features:

• Adjustable sensitivity and time-of-day settings
• A built-in short-circuit isolator for loop protection
• Continuous self-monitoring with fault and contamination reporting

This ensures reliable detection, reduced false alarms, and efficient system performance.

Key Technology & Benefits

The S4-710 combines advanced sensing with intelligent system integration to deliver accurate and reliable fire detection.

• Multi-sensor detection – optical smoke and heat sensing for improved fire recognition
• Dual-angle optical technology – reduces false alarms from dust, steam, and aerosols
• Built-in short-circuit isolator – protects loop integrity during faults
• Programmable sensitivity – adapts to different environments and operating conditions
• Intelligent processing – fast, accurate response with minimal nuisance alarms

Benefits

• Greater resistance to false alarms
• Reliable detection across multiple fire types
• Efficient installation with integrated functionality

Typical Applications

The S4-710 multi-sensor detector is suitable for a wide range of environments, including:

• Commercial buildings – offices, retail units, and shared spaces
• Educational facilities – schools, colleges, and universities
• Healthcare settings – hospitals, clinics, and care homes
• Industrial sites – warehouses, factories, and production areas
• Hospitality venues – hotels, conference centres, and leisure spaces
• Public buildings – libraries, transport hubs, and government facilities

Its advanced sensing technology makes it particularly effective in areas where false alarms from dust, steam, or aerosols are a concern.

Installation & Maintenance

Installation Overview

• Install using a Gent S-Quad base
• Connect 2-wire loop (polarity sensitive)
• Address via panel or handheld programmer
• Twist-fit detector into base
• Commission and test using approved methods
  All installations must comply with BS 5839-1:2025 and BS 7671 wiring regulations.

Maintenance Requirements

• Daily: Check panel status
• Monthly: Test devices (rotational testing)
• Quarterly: Inspect for contamination
• Annually: Full system test and clean detectors
  Always remove dust covers after installation and ensure testing is carried out at least every 6 months in accordance with British Standards.

Comparison: Gent S4-710 vs S4-715

Key Takeaway

• Choose S4-710 for general-purpose fire detection with excellent false alarm immunity
• Choose S4-715 where carbon monoxide detection is required, such as hotels or residential settings