SIEMENS Burner Controls

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• Delivery Time: Ready Stock

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Product Details:

Product Details:

Flame safeguard with approval for continuous operation for the supervision of oil flames and gas flames in applications with an ionization probe and a photocell detector RAR9.
Flame safeguard for intermittent operating mode with UV flame detectors QRA2 / QRA2M / QRA4 / QRA4M / QRA10 / QRA10M.

LFS1 units are designed for the supervision of oil burners and gas burners in combination with control unit LEC1, burner control LME39.xxxRP, or with programmable logic controllers.

Typical fields of application range from industrial burners up to the highest security level SIL3 and in the field of ship burners.

Flame supervision:

• Takes place with photocell detector RAR9 with approval for continuous operation,in the case of LFS1.1 (firing on oil).
• Takes place with an ionization probe with approval for continuous operation or with UV flame detector QRA2 / QRA2M / QRA4 / QRA4M / QRA10 / QRA10M in intermittent operation, in the case of LFS1.2 (firing on gas).

Product Details:

Burner controls with self-checking flame signal amplifier, for continuously oper- ating multistage or modulating oil or gas burners of medium to high capacity; with air pressure supervision for checked air damper control.

Burner controls type LOK16... / LGK16... feature a self-checking flame supervision cir- cuit.
That supervision circuit initiates the required safety actions not only in the case of pre- mature or missing flame signals, but also in the event of any kind of fault on the flame detector, the detector cables or the flame signal amplifier that could simulate a flame signal during burner operation. 

The burner controls are therefore suited for use in all types of oil- or gas-fired combus- tion plants where self-checking flame supervision systems are either mandatory or rec- ommendable:

• Burners that operate continuously
• Burners in intermittent operation that, in the case of great heat demand, may oper- ate continuously for more than 14 hours, e.g. in plants using boiler sequencing
• Burners that need to comply with the German TRD 411 and TRD 412 regulations for steam boilers
• Burners in plants where, for specific safety requirements, supervision of the burner by a self-checking flame supervision system seems advisable
• The control sequence and the connection circuitry of the LOK16... / LGK16... burner controls are identical to those of the LAL2... and LFL1... respectively (with the exception of type LFL1.148), so that existing combustion plants can also be equipped with self-checking burner controls, provided very good flame detector current values are measured in the plant supervised so far by the LFL1..., and provided the following types of flame detectors are either installed or can sub- sequently be fitted:

Specific features when using LOK16... :  - Selenium photocell detector RAR...

Product Details:

Burner controls with self-checking flame signal amplifier, for continuously oper- ating multistage or modulating oil or gas burners of medium to high capacity; with air pressure supervision for checked air damper control.

Burner controls type LOK16... / LGK16... feature a self-checking flame supervision cir- cuit.

That supervision circuit initiates the required safety actions not only in the case of pre- mature or missing flame signals, but also in the event of any kind of fault on the flame detector, the detector cables or the flame signal amplifier that could simulate a flame signal during burner operation. 

The burner controls are therefore suited for use in all types of oil- or gas-fired combus- tion plants where self-checking flame supervision systems are either mandatory or rec- ommendable:
- Burners that operate continuously
- Burners in intermittent operation that, in the case of great heat demand, may oper- ate continuously for more than 14 hours, e.g. in plants using boiler sequencing
- Burners that need to comply with the German TRD 411 and TRD 412 regulations for steam boilers
- Burners in plants where, for specific safety requirements, supervision of the burnerby a self-checking flame supervision system seems advisable
- The control sequence and the connection circuitry of the LOK16... / LGK16... burner controls are identical to those of the LAL2... and LFL1... respectively (with the exception of type LFL1.148), so that existing combustion plants can also be equipped with self-checking burner controls, 

• provided very good flame detector current values are measured in the plant supervised so far by the LFL1..., and 
• provided the following types of flame detectors are either installed or can sub- sequently be fitted: 

Specific features when using LGK16...

Product Details:

Oil burner controls for the supervision, startup and control of 1- or 2-stage forced draft oil burners in intermittent operation.
Oil throughput up to 30 kg/h.

The LOA... are used for the startup, supervision and control of 1- or 2-stage forced draft oil burners in intermittent operation.
Yellow-burning flames are supervised with photoresistive detectors QRB..., blue- burning flames with blue-flame detectors QRC...

Use
- Forced draft oil burners conforming to EN 267
- Oil atomization burners in monoblock design conforming to EN 230

General features

Product Details:

LME7... are used for the startup and supervision of multistage or modulating forced draft burners and atmospheric gas burners in intermittent operation

The fuel-air ratio can be set either via an air damper actuator - acting on mechanical or pneumatic ratio control - or via pulse width modulated fans and pneumatic ratio control.

The flame supervision supervised with ionization probe and with UV flame detector QRA2..., QRA4... or QRA10....

• Applications in accordance with EN 267: Gas burners for liquid fuels
• Applications in accordance with EN 676: Automatic forced draft burners for gaseous fuels
• Applications in accordance with EN 746-2: Industrial thermoprocessing equipment-Part 2: Safety requirements for combustion and fuel handling systems

• Undervoltage detection
• Electrical remote reset facility
• Accurate control times thanks to digital signal handling
• Multicolor indication of fault status and operating state messages
• Air pressure supervision with function check of air pressure switch during start and operation
• Repetition limitation
• Controlled intermittent operation after max. 24 hours of continuous operation (can be parameterized via parameter 239) (depending on type of program module PME)
• BCI
• Unit parameter adjustable either via display or PC software ACS410
• Connection for program module PME...