Honeywell LG1093AA26 Flame Sensor

The LG1093AA26 is an industrial flame sensor manufactured by Honeywell for burner management and combustion safety systems. It detects optical flame radiation within industrial furnaces, boilers, and thermal oxidizers, converting flame intensity into electrical feedback signals for burner control units. This model features a 3/4 inch internal NPT mounting interface, a Teflon-shielded connection cable with a 16-foot length, and high-pressure window ratings designed for rugged combustion environments.

Mounting Interface and Cable Specifications

The sensor is engineered for secure mechanical and electrical installation across burner observation ports. The ordering suffix AA26 designates a 16-foot (4.9-meter) Teflon-shielded cable equipped with a 1-inch external conduit thread for secure routing to the local control panel. The 3/4 inch internal NPT mounting connection allows direct screwing onto standard sight pipes.

Operating Limits and Pressure Ratings

Built to withstand demanding thermal and pressure conditions, the sensor operates within a temperature range of -40 deg F to +350 deg F (-40 deg C to +177 deg C). The optical window withstands up to 150 psig at 400 deg F (+204 deg C), ensuring dependable seal integrity and protection against combustion chamber pressures.

Frequently Asked Questions

Q: What cable length is specified by the LG1093AA26 model configuration?

A: The AA26 suffix designates a 16-foot (4.9-meter) Teflon-shielded connection cable.

Q: What are the physical mounting thread specifications for this Honeywell flame sensor?

A: The unit features a 3/4 inch internal NPT process mounting interface and a 1-inch external conduit thread for the control panel connection cable.

Q: What pressure and temperature limits apply to the optical window?

A: The window is rated for up to 150 psig at 400 deg F (+204 deg C) within an operating ambient range of -40 deg F to +350 deg F.