FIREYE 95D Series Flame Scanners

Technical Dossier

Product Details And Specifications

FIREYE 95D Series Flame Scanners: Comprehensive Module Range and Technical Overview

The FIREYE 95D Series flame scanner is a self-checking ultraviolet (UV) and infrared (IR) detection platform deployed across global heavy industry installations including petrochemical refineries, coal-fired power stations, gas turbine facilities, and nuclear auxiliary boiler systems. The 95D architecture is engineered to interface with FIREYE's E110, E120, and Nexus burner management systems, providing continuous flame signal output, automatic self-check cycles, and fail-safe relay logic. Its compact stainless-steel housing and standardized 95-series mounting thread make it a direct replacement candidate across legacy and modern combustion control panels. The series has accumulated significant installed base in facilities requiring SIL-rated flame supervision, where replacement continuity and long-term parts availability are critical operational parameters.

The Evolution of 95D Series Architecture

The FIREYE 95D Series descends from the earlier 45UV and 60UV scanner families introduced in the mid-20th century for industrial burner management. The 95D platform standardized the 1-inch NPT mounting interface and introduced solid-state amplifier circuitry, replacing earlier vacuum-tube signal conditioning. Early 95D variants used analog 4–20 mA flame signal output; subsequent revisions added discrete relay outputs and compatibility with FIREYE's digital Nexus controller platform. The transition from the 95D to the 95DS (self-checking) sub-family addressed IEC 61511 functional safety requirements, incorporating automatic shutter-based self-test cycles at configurable intervals. The 95DSS sub-family extended this with dual-spectrum detection capability, combining UV and IR sensing in a single housing to reduce nuisance trips in high-luminosity flame environments such as oil-fired and multi-fuel burners. Current production variants (95DSS2E-1, 95DSS2E-2) represent the mature phase of this architecture. Facilities operating pre-2000 installations may encounter discontinued variants for which direct OEM replacement is no longer available; cross-reference to current equivalents or refurbished stock is the standard lifecycle management approach.

95D Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified members of the FIREYE 95D flame scanner family, organized by detection technology and self-check configuration:

UV Self-Checking Scanners

• 95DSS2E-1: Dual-spectrum UV/IR self-checking scanner, 120 VAC, 1-inch NPT mount, standard sensitivity
• 95DSS2E-2: Dual-spectrum UV/IR self-checking scanner, 240 VAC, 1-inch NPT mount, standard sensitivity
• 95DSS1E-1: Single-spectrum UV self-checking scanner, 120 VAC, 1-inch NPT mount
• 95DSS1E-2: Single-spectrum UV self-checking scanner, 240 VAC, 1-inch NPT mount
• 95UVSC-1: UV self-checking scanner, 120 VAC, standard housing, Nexus-compatible
• 95UVSC-2: UV self-checking scanner, 240 VAC, standard housing, Nexus-compatible
• 95UV5-1: UV scanner, 120 VAC, non-self-checking, legacy E110 system interface
• 95UV5-2: UV scanner, 240 VAC, non-self-checking, legacy E110 system interface

IR and Dual-Spectrum Scanners

• 95IRSC-1: Infrared self-checking scanner, 120 VAC, high-luminosity flame environments
• 95IRSC-2: Infrared self-checking scanner, 240 VAC, high-luminosity flame environments
• 95IR5-1: Infrared scanner, 120 VAC, non-self-checking, oil/gas burner applications
• 95IR5-2: Infrared scanner, 240 VAC, non-self-checking, oil/gas burner applications

Accessories and Mounting Hardware

• 95-1000: Purge air adapter assembly for 95-series scanners, 1-inch NPT
• 95-1001: Extension tube, 6-inch, stainless steel, 95-series compatible
• 95-1002: Extension tube, 12-inch, stainless steel, 95-series compatible
• 95-1003: Cooling air jacket assembly for high-temperature installations
• 95-1010: Replacement UV sensing cell for 95UV and 95DSS sub-families
• 95-1011: Replacement IR sensing cell for 95IR and 95DSS sub-families

Sourcing Hard-to-Find & Obsolete 95D Series Parts

Several 95D Series variants, including the 95UV5-1, 95UV5-2, 95IR5-1, and 95IR5-2, have been discontinued by FIREYE and are no longer available through standard OEM distribution channels. DriveKNMS maintains a dedicated inventory of refurbished, tested, and new-old-stock (NOS) units for these discontinued models, sourced through controlled dismantlement of decommissioned control panels and verified surplus channels. For facilities operating under long-term service agreements or regulatory inspection cycles that prohibit mid-cycle hardware substitution, DriveKNMS provides like-for-like replacement units with full functional test documentation. Cross-reference services are available for customers requiring migration from discontinued variants to current production equivalents (e.g., 95UV5-1 → 95UVSC-1), including compatibility verification against existing FIREYE controller firmware versions.

Quality Control for the 95D Series Range

Each 95D Series unit processed by DriveKNMS undergoes a structured test protocol specific to flame scanner hardware. UV sensing cells are tested against a calibrated UV lamp source at defined spectral output to verify detection threshold and response time within OEM specification. IR sensing cells are evaluated using a blackbody radiation source at calibrated temperature. Self-checking mechanism function is verified by inducing shutter actuation cycles and confirming relay output state transitions. Signal output linearity (4–20 mA where applicable) is measured across the full flame intensity simulation range. Housing integrity, connector pin continuity, and thread condition are inspected prior to dispatch. Units failing any parameter are quarantined and not returned to inventory. Test records are retained and available upon request for regulatory compliance documentation.