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SIEMENS QRA4.U uv sensor mesin burner
UV flame detector for use with burner controls from Siemens for the supervision
of gas or oil flames.
The QRA4… and this Data Sheet are intended for use by OEMs which integrate
the flame detectors in their products.
The flame detector is used for the supervision of gas flames, yellow- or blue-burning oil
flames and for ignition spark proving in intermittent operation.
The QRA4… is for use with the following types of burner control:
QRA4.U QRA4M.U Burner control Data Sheet
? — LFL… N7451
? — LFE1… N7461
? — LFE10… N7781
? — LGB2… / LGB4… with AGQ1… N7435
? — LME21…C2 / LME22…C2 with AGQ3… N7101
? — LME39…C2 with AGQ3… N7106
? — LME41…C2 / LME44…C2 with AGQ3… N7101
? — LME7… N7105
? ? LMV26.300… with AGM60.1… N7547
? ? LMV27.100… N7541
? ? LMV36.520… with AGM60.4… N7544
? ? LMV37.4… N7546
? — LMV5… with AGQ1… N7550
Other burner controls on request.
Do not open, interfere with or modify the flame detector! Siemens will not assume
responsibility for damage resulting from unauthorized interference!
? All activities (mounting, installation and service work, etc.) must be performed by
qualified personnel
? Before making any wiring changes in the connection area, completely isolate the
plant from mains supply (all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on again and that it is indeed dead. If not observed, there is
a risk of electric shock hazard.
? Ensure protection against electric shock hazard by providing adequate protection
for the connection terminals. If this is not observed, there is a risk of electric shock
? Each time work has been carried out (mounting, installation, service work, etc.),
check to ensure that wiring is in an orderly state. If this is not observed, there is a
risk of loss of safety functions and a risk of electric shock
? Halogen lamps, welding equipment, special lamps or ignition sparks may produce
sufficie
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