QRA73 flame detector
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | UV Flame Detector |
| Model | QRA73 |
| Detection Principle | Ultraviolet (UV) flame detection |
| Application | Industrial Gas and Oil Burner Systems |
| Compatible Controllers | Siemens LFL, LFE, LME Series (depending on system configuration) |
| Spectral Range | Ultraviolet radiation (UV flame sensing) |
| Operating Voltage | Supplied by compatible burner controller |
| Mounting | Front mounting with viewing window |
| Cable Connection | Fixed cable (length varies by version) |
| Housing | Industrial-grade metal housing |
| Operating Temperature | Suitable for industrial combustion environments |
| Protection Class | Industrial design |
| Condition | New / OEM |
Notes
Product Overview
The Siemens QRA73 is an ultraviolet (UV) flame detector designed for industrial burner safety and combustion monitoring applications.
It detects ultraviolet radiation emitted by the flame during combustion and transmits the signal to the burner control unit to ensure safe operation.
The QRA73 is commonly used in industrial boilers, furnaces, kilns, and other gas-fired or oil-fired combustion systems.
It provides reliable flame supervision, helping prevent unsafe fuel supply in case of flame failure.
This model is typically integrated with Siemens burner control units such as the LFL and LME series, supporting continuous industrial operation in demanding environments.
Key Features
- Ultraviolet flame detection technology
- Designed for industrial combustion safety systems
- Reliable flame monitoring for gas and oil burners
- Compatible with Siemens burner control units
- Durable metal housing for industrial environments
- Stable performance in high-temperature conditions
- Suitable for continuous industrial operation
Packaging & Delivery
- Individual protective industrial carton packaging
- Shock-resistant internal packaging
- Standard export packaging for international shipment
- Fast dispatch for stocked models
- Shipping via courier, air freight, or sea freight
- Bulk supply available for OEM and distributor customers
Frequently Asked Questions (FAQ)
Q: What is the Siemens QRA73 used for?
A: It is a UV flame detector used to monitor flame presence in industrial gas and oil burner systems.
Q: How does QRA73 detect flame?
A: It detects ultraviolet radiation produced by combustion and sends a signal to the burner control unit.
Q: Which controllers are compatible with QRA73?
A: It is typically used with Siemens LFL, LFE, and LME series burner control units.
Q: What is the difference between QRA73 and other QRA models?
A: Differences may include cable length, mounting configuration, and application range depending on the specific sub-model.
Q: Can QRA73 be used in industrial boilers and furnaces?
A: Yes. It is widely installed in industrial heating and combustion systems.
Q: Do you provide worldwide shipping?
A: Yes. International shipping is available.
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