Burner Management Systems (BMS)

Burner Management (BMS) The Burner Management cubicle is generally manufactured to IP65 and contains either individual or multiple burner controls. Figure 1 shows a single burner application. The cubicle contains the local Start/Stop Reset push buttons, Door Interlocked Isolator, Credfeld FE2020 Flame Eye, Credfeld LT300 Ignition Control System, Indicating Lamps and selector switches.
	Figure 1 Single Burner Control
Safety Critical Control Systems Credfeld also offer Fail-safe Control Systems utilising different types of PLC's to meet client's specifications. These Controls are designed to meet a pre-determined safety level (SIL) and more recently can conform to BS EN 61508. Figure 2 Shows a Burner Management supplied by Credfeld in 2005 for control of two Natural Gas Burners. The control system incorporated an Allen Bradley Control Logix PLC and was designed to meet a SIL 1 and EN 61508. The BMS controlled the Safety Interlocks, Boiler Purge, Firing Rate and safe start up and shutdown of the Pilot and Main Gas Burners. An Allen Bradley Panel View was also fitted to enable interrogation of the PLC.
	Figure 2 Safety PLC System