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Honeywell U2-1016S-PF All In One Flame Scanner 

The Honeywell U2-1016S-PF  flame monitoring system combines sensing and processing in one package. The U2 is available in several models to provide different options. Each model includes one, two or three sensors which share the same optical axis. 

The U2-1016S-PF  can be connected either through a detachable connector or a pipe fitting for installations with conduit. Refer to the table below for model numbers and options.

Auto Gain and Auto Filter cannot be used withU2-1016S-PF model.

Routine that determines the gain for the IR and SSUV sensors (that are on) necessary to generate a total flame count of approximately 1200. Be sure that all desired sensors are turned on (gain of at least1) before the routine is run.

U2-1016S-PF Power: 22-26 VDC, 120 mA max

Output relay contacts SPST: 2 A, 30 VDC or 250 VAC

Ambient temperature: -40 to 70 ºC (-40 to 158 ºF)

U2-1016S-PF Weight: 2.8 kg (6.1 lbs)

Physical Dimensions:

Diameter: 11.7 cm (4.6 inches)

Length: 15.5 cm (6.1 inches)

The U2-1016S-PF tube detector has a peak response at 210 nm and is primarily for gas flame monitoring. This UV detector using pulse technology is the best for low NOx gas burners and where a solid state sensor, using flicker technology, doesnot provide satisfactory results.

The solid state UV photodiode has a peak response at 310nm. This sensor is suitable for gas, oil and coal.

The solid state IR photodiode has a peak response at 1400 nm. This sensor is suitable for low NOx oil and coal burners, low excess air oil burners, and burners with a limited view from a windbox front plate. The principle of flame monitoring is flicker frequency based.