Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product model | EG1033AC01 |
| Manufacturer | Honeywell |
| Product category | UV flame amplifier |
| Sensor technology | Ultraviolet flame detection |
| Sensor capacity | 2 sensors |
| Supply voltage | 24–28 VDC |
| Output configuration | SPST normally open relay contacts |
| Flame detection time | 0.1 seconds typical; 1.0 second maximum |
| Flame-loss detection | 0.2 seconds maximum |
| Operating temperature | 0 to +55°C |
| Maximum relative humidity | 90% |
| Mounting | Panel / chassis mounting |
| Dimensions | 6.62 × 4.25 × 4.44 inches |
| Mounting holes | Four, 0.20-inch diameter; 6.00 × 2.00-inch spacing |
Product Introduction
The Honeywell EG1033AC01 UV flame amplifier is a signal-processing component used in industrial flame-monitoring systems, particularly gas turbine combustion applications. It receives signals from compatible UV flame sensors, processes the detected flame condition, and provides relay outputs for connection to the turbine control or protection system. Its two-sensor capability allows separate flame-status monitoring for two detection points.
The EG1033AC01 uses a normally open SPST relay output and a 24–28 VDC supply. Its documented response characteristics are approximately 0.1 seconds typical for flame detection, with a maximum flame-loss detection time of 0.2 seconds. These response times are important when reviewing the complete flame-protection logic, although the amplifier alone does not establish the response time or safety integrity of the entire turbine protection system.
EG1033AC01
Application Scenarios & Field Pitfalls
Typical applications
- Gas turbine combustion flame monitoring.
- Aero-derivative turbine flame detection.
- Dual-point UV flame sensing.
- Flame-present and flame-loss signal transmission to turbine control systems.
- Replacement of legacy Honeywell EG-series flame amplifier assemblies.
Important engineering checks
- Sensor compatibility: Confirm the installed UV sensor model and its electrical characteristics. Honeywell LG1093-series sensors are associated with this amplifier family, but the exact sensor and cable configuration must be verified.
- Relay logic: The AC01 version uses normally open SPST relay contacts. Do not substitute the AD01 without reviewing the control-system input logic and wiring.
- Power supply: The OEM catalog specifies 24–28 VDC. Do not assume a 115 VAC supply is acceptable for this exact model.
- Two-channel wiring: Verify the individual sensor connections and corresponding relay outputs. A wiring error can cause one flame channel to be interpreted incorrectly.
- Response-time validation: Check flame detection and flame-loss behavior during controlled commissioning. Do not use a simple power-up test as evidence of flame-detection performance.
Related Products
| Model | Description | Difference |
|---|---|---|
| EG1033AA01 | UV flame amplifier | Transistor open-collector output |
| EG1033AB02 | UV flame amplifier | 115 VAC, normally closed relay output |
| EG1033AD01 | UV flame amplifier | 24–28 VDC, normally closed relay output with separate shield/ground arrangement |
| LG1093AC01 | UV flame sensor | Compatible sensor-family component; 9-foot cable |
| LG1093AC05 | UV flame sensor | Compatible sensor-family component; 24-foot cable |
The EG1033AD01 is not an automatic substitute for the AC01. Its normally closed output and grounding arrangement differ.
Procurement and Quality Control
The EG1033AC01 is a legacy flame-monitoring component, and secondary listings report it as discontinued. Exact configuration and condition should therefore be established before purchase.
Before accepting a replacement, verify:
- Complete model number and original nameplate.
- Supply voltage and polarity.
- Relay output condition and contact operation.
- Both UV sensor input channels.
- Terminal condition and internal signs of heat or corrosion damage.
- Flame detection and flame-loss response under an approved test procedure.
- Certificate of Conformity and traceable test documentation, where required.
Replacement recommendation: Match the EG1033AC01 output configuration and supply voltage exactly. Because this module participates in turbine flame protection, installation and functional testing should follow the plant’s approved combustion-safety procedures.
