FIREYE 95UVS2-1 UV Flame Scanner

FIREYE 95UVS2-1 — Stop the Clock on Your Combustion Shutdown

Every minute a burner management system sits offline, you’re bleeding money. A failed UV flame scanner shouldn’t be the reason your boiler stays cold or your process heater misses its window. The FIREYE 95UVS2-1 is on our shelf in Xiamen right now — inspected, verified, and ready to move via DHL or FedEx within 24 hours of order confirmation. We’ve shipped this exact part to refineries in Southeast Asia, power plants in the Middle East, and district heating facilities across Europe. When your maintenance team is standing in front of a cold burner at 2 AM, this is the call you make.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

The 95UVS2-1 fails in predictable ways. Here’s what field experience actually looks like:

Symptom: Intermittent flame failure lockout (fault code F1 / F3 on NX controller)
Nine times out of ten this is UV tube degradation, not a real flame loss. The internal Geiger-Müller tube has a finite service life — typically 10,000–20,000 operating hours depending on ambient temperature at the scanner port. If your NX controller is logging repeated F1 lockouts with no corresponding combustion anomaly, swap the scanner first before chasing wiring or controller faults.

Replacement procedure — key steps:

• De-energize the burner management circuit and lock out the fuel valve before removing the scanner. Do not rely on the controller interlock alone.
• Allow the sight tube and scanner body to cool to below 50 °C before handling — the port area on a running boiler can exceed 120 °C.
• Inspect the sight tube for carbon fouling or moisture ingress before installing the replacement. A contaminated sight tube will kill a new scanner within weeks.
• The 95UVS2-1 is a direct plug-in replacement — no DIP switch configuration or address setting is required. Connector orientation is keyed; do not force.
• After installation, perform a manual flame-on / flame-off cycle and verify relay output at the controller terminal strip before returning the burner to automatic mode.
• If the NX controller shows a persistent F7 (scanner circuit fault) after replacement, check the cable shield continuity — the scanner cable ground must be terminated at the controller chassis, not floating.
• Firmware note: NX controllers running firmware below v2.4 may require a scanner sensitivity parameter reset after replacement. Access via the NX keypad: Menu → Scanner → Sensitivity → Default. Confirm with FIREYE tech support if unsure of your firmware revision.

Common misdiagnosis: Operators frequently replace the burner ignition transformer when the actual fault is a degraded UV scanner that cannot confirm ignition spark. If your system lights off but immediately trips on flame failure, the scanner is the first suspect — not the transformer.

Reliability in Harsh Conditions

The 95UVS2-1 was not designed for a clean room. It was designed for the kind of environment where ambient temperature swings 60 degrees between day and night, where vibration from adjacent rotating equipment never stops, and where humidity condenses on every cold surface during a plant startup. FIREYE’s UV scanner housings are constructed to withstand continuous mechanical vibration per IEC 60068-2-6 test profiles, and the internal UV sensing element is hermetically sealed against moisture ingress. The operating temperature floor of −40 °C means cold-climate startups — whether in northern Canada or Siberian process plants — don’t require scanner pre-heating. At the high end, the +70 °C ambient rating covers the vast majority of boiler room and fired heater installations without forced cooling. Units supplied from our Xiamen warehouse are stored in climate-controlled conditions and shipped in anti-static, moisture-barrier packaging to ensure the scanner arrives in the same condition it left the factory.

Global Express Logistics

Our dispatch hub is in Xiamen, Fujian — one of China’s primary export ports with direct DHL and FedEx gateway access. Standard export process from order confirmation to airfreight handover is under 24 hours for in-stock items. Typical transit times: Southeast Asia 2–3 business days, Middle East and Europe 3–5 business days, North America 4–6 business days. All shipments include commercial invoice, packing list, and country-of-origin documentation. For projects requiring urgent customs clearance, we can provide HS code pre-classification support and formal export declarations on request. Tracking numbers are issued at the time of airway bill generation and sent directly to your procurement contact. For critical plant shutdowns requiring same-day dispatch, contact us before 14:00 CST — we will confirm feasibility within the hour.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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