Product Core Brief
- Model: 95DSS2-1CEX
- Brand: Fireye (UTC Fire & Security)
- Series: InSight II 95 Series
- Core Function: Provides microprocessor-based dual-spectrum (UV & IR) flame detection and safety interlocking.
- Product Type: Dual Scanner Flame Detector
- Key Specs: 24VDC | UV & IR Solid-State Sensors | Ex d IIC T6 Explosion-Proof
- Condition: New Original / New Surplus
Fireye 85UVF1-1QDK3
Product Introduction
The Fireye 95DSS2-1CEX is an advanced, microprocessor-based flame scanner designed for demanding combustion environments. The “DS” designation indicates its Dual Scanner architecture, integrating both Ultraviolet (UV) and Infrared (IR) solid-state sensing elements on a single optical path.
This industrial automation unit allows for the simultaneous monitoring of mixed-fuel flames (such as gas and coal). It features an internal flame relay with adjustable ON/OFF thresholds, eliminating the need for a remote flame amplifier. The “CEX” suffix denotes a heavy-duty, explosion-proof certified housing, making it ideal for hazardous area classifications.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Dual Spectrum (UV & IR) Flame Scanner |
| Sensor Technology | Solid-State UV and IR |
| Operating Voltage | 24 VDC |
| Hazardous Area Rating | Ex d IIC T6 / ATEX Approved |
| Output Signals | Internal Relay + 4-20 mA Analog |
| User Interface | 8-Character LED Display & 4-Button Keypad |
| Electrical Connection | 12-Pin Quick Disconnect (QD) |
| Protection Rating | IP66 / IP67 |
| Primary Application | Mixed-Fuel Burner Management |
| Compliance | CE (EMC/LVD), UL, ATEX |
Quality Control Process
Every replacement module undergoes strict functional validation. We first verify the 24 VDC power draw to ensure internal regulators are stable. Next, we perform optical signal injection testing on both the UV and IR channels to confirm the microprocessor accurately registers flame flicker frequencies. We then test the internal relay state transitions and verify the 4-20mA analog output linearity. Finally, we inspect the 12-pin QD connector and the explosion-proof housing threads for integrity. All units ship in anti-static shielding.
Fireye 85UVF1-1QDK3
Replacement Pitfall Guide
❗ Execute Dual-Spectrum Calibration. Because this unit uses both UV and IR sensors, you MUST use the onboard 4-button keypad and LED display to configure the digital cross-verification algorithms. Properly setting the dynamic flicker frequency (Flicker) parameters is critical to exclude background furnace wall radiation.
❗ Verify the CEX Housing Rating. The “CEX” suffix indicates an Ex d IIC T6 explosion-proof enclosure. Ensure this specific rating matches your site’s hazardous area classification. Do not substitute with a standard or WINC (window mount) variant if explosion-proofing is legally required.
❗ Check the 12-Pin QD Wiring. This model utilizes a 12-pin electrical quick-disconnect rather than a captive cable. Ensure you are using the correct mating cable assembly to maintain the IP67 and Ex d IIC T6 safety ratings.
❗ Confirm Mixed-Fuel Configuration. If replacing an older single-spectrum scanner, verify that your burner management system is prepared to handle the dual-spectrum digital output and composite signal calibration of the 95DSS2 series.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| 95DSS2-1CEX | 95DSS2-1CEX | Direct | Identical electrical specs |
| 95DSS2-1CEX | 95DSS2E-1CEX | Direct | Minor ‘E’ revision, verify config |
| 95DSS2-1CEX | 95DSS3-1CEX | Needs Adaptation | Upgraded 95DSS3 series, verify optical path |
- Response Time: Microsecond-level FFRT interlock with digital filtering.
- Signal Output: Continuous 4-20mA flame strength monitoring with relay interlock.
