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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Honeywell |
| Model Number | EG1033AC01 |
| Product Family | EG Amplifier (LG Series Flame Monitoring) |
| Detection Principle | Ultraviolet (UV) flame detection |
| UV Wavelength Range | ~180–260 nm (hydrocarbon flames) |
| Supply Voltage | 20–35 VDC |
| Nominal Supply | 28 VDC reference |
| Power Consumption | 10 W maximum |
| Output Type | Relay contacts (SPST, flame-status) |
| Flame-Present Response | 0.1 second typical, 1.0 second maximum |
| Flame-Loss Response | 0.2 second maximum |
| Sensor-to-Amplifier Distance | Up to ~305 m (1,000 ft) with approved cable |
| Operating Temperature | −40 to +176 °C (system-dependent; verify installation environment) |
| Physical Dimensions | 6.62 × 4.25 × 4.44 in (168 × 108 × 113 mm) |
| Mounting | Four 0.20 in holes on 6.00 × 2.00 in pattern; industrial panel/DIN mounting |
| Approvals | CE (EMC, LVD); IECEx/ATEX variants exist for sensor side—verify exact unit markings |
| Approx. Weight | ~3 kg (shipping weight varies with packaging) |
Product Introduction
The Honeywell EG1033AC01 is an EG-series UV flame amplifier used in LG/EG flame-monitoring systems for industrial gas turbines and combustion equipment. It conditions the signal from a UV flame sensor and provides a discrete relay output indicating flame-present or flame-loss status to the turbine protection logic.
This unit is chosen for its fast response (0.1 s typical flame detect, 0.2 s max flame-loss), wide sensor cable run capability (up to ~305 m), and proven deployment on GE and licensee gas turbines in power generation, pumping, and marine applications. The 20–35 VDC supply and relay output make it straightforward to integrate into existing 28 VDC control schemes without protocol gateways.
EG1033AC01
EG1033AC01
EG1033AC01
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs / no relay action on power-up | Supply voltage missing or out of range | ✅ High | Measure 20–35 VDC at amplifier supply terminals with a multimeter; verify polarity and fuse | Restore correct 20–35 VDC; check upstream breaker/fuse before condemning the amplifier |
| ERR or fault indication, flame never detected | Sensor open/short, cable damage, or wrong sensor type | ✅ High | Disconnect sensor; measure cable continuity and insulation; verify sensor part number matches LG/EG system | Replace damaged cable/sensor; ensure UV sensor is compatible (LG/EG family) |
| Intermittent flame signal, random trips | Loose terminals, EMI, or grounding issues | ✅ Medium | Inspect terminal tightness; check shield/ground per OEM wiring diagram; look for nearby VFDs/large contactors | Re-terminate, improve shielding/grounding; separate signal cables from power cables |
| Flame detected when burner is off | Stray UV source (welding, sunlight), dirty/defective sensor window | ✅ Medium | Block sensor line-of-sight; clean sensor window; observe behavior with burner off | Clean or reposition sensor; verify installation orientation and shielding |
| Relay output never changes state despite good flame | Amplifier internal fault or configuration mismatch | ✅ High | With confirmed flame and valid sensor signal, monitor relay output with multimeter/PLC input | If sensor and wiring are verified good, amplifier likely requires replacement |
If you are unsure, pull diagnostic logs from the turbine/DCS, photograph nameplates and wiring, and contact technical support before swapping hardware.
Frequently Asked Questions (FAQ)
Q: Is the EG1033AC01 new, refurbished, or surplus?
A: Units listed as “New Original / New Surplus” are unused OEM stock pulled from closed projects or overstock. They are not refurbished. We verify supply voltage response and output relay operation before shipping.
Q: Can I use this with any UV flame sensor?
A: No. It is designed for Honeywell/ONTIC LG/EG family UV sensors used on gas turbines. Mixing sensor families or using generic UV detectors can cause false trips or no detection. Match sensor part numbers to the LG/EG documentation.
Q: What supply voltage does it actually need—24 VDC or 28 VDC?
A: The spec is 20–35 VDC, with 28 VDC as the nominal reference in many installations. A regulated 24–28 VDC control supply is typical. Do not run it on 115 VAC; that is a different amplifier variant.
Q: Will swapping this amplifier clear my flame-fault alarms immediately?
A: Not necessarily. If the root cause is a bad sensor, cable, or wiring ground, a new amplifier will still see a bad signal. Verify sensor continuity, insulation, and wiring first. In the field, most “amplifier faults” trace back to the sensor side or EMI.
Q: Is it hot-swappable in a running turbine system?
A: No. Flame monitoring is part of the safety/trip logic. Removing or inserting the amplifier while the system is live can cause nuisance trips or unsafe conditions. Follow your site’s MOC and shutdown procedures before working on flame detection hardware.
Q: What warranty do you offer on this part?
A: Standard warranty is 1 year from shipment against DOA and functional failure under normal use. We provide a test report on request for refurbished or tested-surplus lots. For new surplus, we document inbound inspection and power/relay verification.
Q: Why is your price lower than buying direct from the OEM?
A: This is surplus/OEM stock from project cancellations and overstock liquidations, not newly manufactured factory production. The hardware is genuine Honeywell, but it is not “current production” in all cases. We disclose condition clearly and test each unit before sale.
