I. Basic Information
Brand: FIREYE (American Fire Eye, leading industrial combustion safety company)
Full Model Name: 95DSS2-1
Product Positioning: UV + IR dual-sensor integrated flame detector, with built-in amplification circuit and flame relay, no need for external flame amplifier; S2 represents the AutoTune version of the automatic flame learning
Life Cycle: The original factory officially discontinued and phased out in February 2020 (Obsolete), no new original factory futures available; The market only circulates disassembled, refurbished, and inventory spare parts
Origin: United States
Explosion-proof Protection: NEMA 4X / IP66; Class I Div.2 A/B/C/D, ATEX Ex d IIC T6; FM, UL, CE, CSA certifications
Model Code Interpretation
95: InSight I integrated flame scanning platform
DS: Dual Sensor (UV + IR dual-spectrum detection)
S2: Second-generation intelligent model, supports automatic flame feature learning AutoTune, multiple levels of flashing frequency adaptive, remote communication
1: Standard 12-pin quick connector (CG suffix indicates the model with a 3-meter fixed cable 95DSS2-1CG)
Core Sensing Principle (Dual-spectrum Anti-interference)
UV Ultraviolet Channel: 295~320nm, detects UV flicker of gas and fuel flames, shields infrared interference from high-temperature furnace walls
IR Infrared Channel: 700~1700nm, detects infrared characteristics of hydrocarbon combustion, shields sunlight and arc interference
Dual Signal Fusion Algorithm: Identifies the dynamic flashing frequency of the flame, distinguishes real flames from furnace wall heat radiation, reflection, and smoke dust, significantly reduces false detection / missed detection
Electrical and Hardware Parameters Power supply
Input: 24VDC, 0.35A
Output signal
Flame Relay FR: SPST normally open contact, 2A @ 240VAC / 2A @ 30VDC, customizable hysteresis for engagement / disengagement
Fault Relay Fault: SPST normally open, activates for self-checking faults, sensor failure
4–20mA Analog: Linear output of flame intensity, maximum load 750Ω, connectable to DCS / recorder
Human-machine interaction
8-bit digital-alphabet LED scrolling display
4 key operations: automatic learning, gain, flashing frequency, flame threshold, extinguishing response time FFRT all programmable
Electronic self-check, no mechanical shutter, lower failure rate
Environmental specifications
Operating environment temperature: -40℃ ~ +66℃
Probe withstands furnace high temperature: compatible cooling air sleeve can be used for long-term adaptation to industrial high-temperature furnaces
Key Functional Highlights
AutoTune automatic flame learning (S2 exclusive): One-click automatic capture of target flame characteristics, automatic matching of optimal gain and flashing frequency, quick debugging for beginners
Multiple flame threshold levels adjustable, distinguish between main fire / persistent fire, single burner / multiple burner interference
Programmable extinguishing response time FFRT, suitable for various fuels such as gas, fuel oil, coal powder
Built-in full-loop self-check: real-time alarm for sensor, power supply, communication, relay faults
12-pin quick plug-and-play connector, convenient on-site disassembly and assembly
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