LG1093AA24 261A1812P012 LG1093 Flame Sensor

• Manufacturer : Honeywell
• Product No : LG1093AA24
• Product type : LG1093 Flame Sensor
• Mounting Interface : 3/4 inch internal NPT
• Control Panel Connection : Teflon shielded cable with one inch external conduit thread
• Operating Temperature : -40°F to +350°F
• Window Pressure Rating : 150 psig at 400°F
• Cable Lengths = AAx4 : 16ft (4.9m), AAx5 : 42ft (12.8m), AAx6 : 61ft. (18.6m)
• Shipping Weight : 3 Kg

LG1093AA24

Application
ITS flame scanners are currently used on land based as well as on offshore industrial heavy duty gas turbines.

They have been designed for safe operation of General Electric gas turbine frames 5, 6, 7 and 9.
Mode of Operation
When ultraviolet rays from an open flame hit the cathode leg of the sensor, the gas in the detector is ionized and photoelectrons are generated from the cathode.
The electrons and positive ions are accelerated towards the anode and cathode, creating more free electrons

in the process. A burst of current flow is created by the avalanche effect. This burst of current will
‘discharge’ the detector by causing a drop in the potential difference across the anode and cathode. As a
result, the avalanche effect is stopped, and the voltages at the anode and cathode start to build up again.