Original and Genuine Products of Flame Burner Ultraviolet Battery of Siemens Phototube Qra4. U Flame Detector Directly Supplied by Chinese Factory

• Certification: ISO9001
• Type: Electric Coil
• Material: Silicon Carbide
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QRA4. U
• Form: Heating Wire
• Shape: Plate
• Mechanical Condition: Class 2m2
• Weight: About 180g
• Humidity: <95%R.H.
• Temperature Range: -12+60°c
• Transport Package: Export Packing
• Trademark: SIEMENS
• Origin: Germany
• Production Capacity: 9999
• Package Size: 5.00cm * 3.50cm * 10.30cm
• Package Gross Weight: 0.300kg

Product Description

Product introduction
Use a flame detector to monitor the gas flame, yellow or blue fuel flame, and to monitor the ignition spark of intermittent operation.
Qra4 is applicable to the following burner controllers:
LFL,LFE1,LFE10,LGB,LME21-LME22,LME39,LME41,LME7
LMV27.100,LMV37.1,LMV5
Installation instructions
Always lay the high voltage ignition cable separately and keep a large distance from the sensor and other cables as far as possible.
Product specification
UV flame detector with forward-looking window
Aluminum housing with 3/4 "-14npsm connection thread for fixing on burner or boiler.
The length of connecting wire for electrical connection is about 1.8m
1/2 "-14npsm connector thread, used to fix Menzel hose (wire protection tube) for protecting connecting wire
 

Product Description
QRA4. U series flame detector
Brand: SIEMENS (formerly LANDIS&STAEFA)
Origin: Germany
Flame detectors are used in conjunction with Siemens combustion controllers for monitoring gas or fuel flames.
This type of flame detector monitors flame signals generated by UV radiation emitted by gas or fuel flames.
The radiation detector is a UV phototube with two electrodes. 
UV will not react to the burning refractory bricks, sunlight, or lighting in the combustion chamber.
The flame detector QRA4.U is an aluminum housing with 3/4 "-14NPSM internal threads, used to install the flame detector on a burner or boiler. The connecting wire is approximately 1.8m. The electrical connection end is 1/2" -14NPSM internal thread, and a wire protection sleeve is required.