Normal operation of an industrial process such as a utility boiler or kiln includes a wide variation of operating loads from cold start-up to full load. Even the most versatile of auto-iris cameras cannot compensate for these changing light levels. The IST-Quadtek™ M721 auto-iris controller allows the operator to make level adjustments to the M508™ camera auto-iris from the control room. Level control of the auto-iris means that flame details will not be lost due to camera saturation. During start-up, burner viewing will not be lost due to insufficient levels of brightness.

Connection is made simple because the M721 unit controls the cameras iris while sharing the same coax that is normally run from the camera to the control room.