95DSS3-1WOC Fireye Flame Scanner

Overview

The Fireye 95DSS3-1WOC InSight II is a high-performance, microprocessor-based integrated flame scanner designed to detect the presence or absence of a flame in industrial burner applications. Utilizing both solid-state infrared (IR) and ultraviolet (UV) sensors, this dual-spectrum scanner provides superior discrimination between the target burner and adjacent flames. The “WOC” designation indicates that this specific model is provided without quick-disconnect cable connectors, instead featuring two threaded openings (1/2″ NPT and 3/4″ NPT) for direct wiring to internal terminal blocks. This integrated design eliminates the need for a separate remote flame amplifier, as it incorporates internal flame relays and 4-20 mA analog outputs within the sensing head.

Features

• Dual UV/IR detection technology for enhanced verification and accuracy in complex combustion chambers.
• Integrated design combining detection, amplification, and safety determination in a single unit.
• Two independently adjustable flame relays (SPDT) and one fault relay (SPST).
• Dual 4-20 mA analog outputs for continuous monitoring of flame signal strength.
• Advanced flicker frequency discrimination with 21 selectable modulation frequencies.
• Auto-Config capability for simplified setup and manual override for expert tuning.
• Four selectable memory files to accommodate different fuels or firing rates.
• SIL 3 certified for high-level safety performance and reliability.
• Electronic self-checking for continuous safety monitoring.

Specifications

• Model Number: 95DSS3-1WOC
• Input Power: 24 VDC (+10%, -15%), 0.35 A
• Housing Material: Cast aluminum with grey polyester powder coat finish
• Environmental Rating: NEMA 4X, IP66
• Operating Temperature: -40°F to 150°F (-40°C to 65°C) ambient
• Electrical Connections: One 1/2″ NPT and one 3/4″ NPT threaded opening for customer-supplied conduit or glands
• Mounting: 1″ NPT or 1″ BSP sight pipe connection (requires mounting flange, sold separately)
• Cooling/Purge Air: 4 SCFM (113 l/min) at 3/8″ NPT/BSP connection
• Weight: Approximately 7.1 lbs (3.22 kg)
• Approvals: FM, UL, CE, NEMA 4X

Applications

The 95DSS3-1WOC is ideally suited for monitoring flames in demanding industrial and commercial burner systems, particularly where high discrimination is required to distinguish the target flame from background radiation or adjacent burners. It is commonly used in multi-burner boilers, power generation facilities, and process heaters firing various fuels, including natural gas, propane, and various grades of fuel oil. Its direct-wire design is preferred in installations where standard quick-disconnect cables are not suitable or where existing conduit systems are utilized.