How is flame failure detected in a rotary cup oil burner?

How is flame failure detected in a rotary cup oil burner?

• A. Thermostat
• B. Scanner
• C. Pressure gauge
• D. Flow meter

Answer: (B)

Flame failure in a rotary cup oil burner is effectively detected by a scanner. This device is designed to monitor the presence of a flame during the burner operation. A scanner typically operates using infrared or ultraviolet light to sense the flame's characteristics. When the flame is present, the scanner generates a signal indicating that the burner is functioning properly. If the flame goes out or fails to ignite, the scanner does not receive the appropriate signals and can then trigger safety mechanisms to shut down the burner, preventing potential hazards like excessive fuel accumulation or explosion risks. The other devices mentioned serve other functions. A thermostat is used for temperature control; it does not directly detect flame presence. Pressure gauges measure fluid pressures in the system but do not provide information regarding the flame itself. Similarly, a flow meter assesses the volume of fuel being supplied but does not indicate whether the flame is active or safe. Therefore, the scanner is the most appropriate choice for detecting flame failure in this context.

Flame failure in a rotary cup oil burner is effectively detected by a scanner. This device is designed to monitor the presence of a flame during the burner operation. A scanner typically operates using infrared or ultraviolet light to sense the flame's characteristics. When the flame is present, the scanner generates a signal indicating that the burner is functioning properly. If the flame goes out or fails to ignite, the scanner does not receive the appropriate signals and can then trigger safety mechanisms to shut down the burner, preventing potential hazards like excessive fuel accumulation or explosion risks.

The other devices mentioned serve other functions. A thermostat is used for temperature control; it does not directly detect flame presence. Pressure gauges measure fluid pressures in the system but do not provide information regarding the flame itself. Similarly, a flow meter assesses the volume of fuel being supplied but does not indicate whether the flame is active or safe. Therefore, the scanner is the most appropriate choice for detecting flame failure in this context.