Bullard QXT Thermal Imager

OPTIONAL ETT

The number (0-99) is a reference point indicating the relative level of ETT engagement; by itself it has no specific meaning. When engaged, the LEFT and RIGHT buttons adjust ETT. There are two ways to disengage ETT: (1) depress both LEFT and RIGHT buttons (2) cycle the ETT engagement reading past 99

Electronic Thermal Throttle (ETT) is a hot spot indicator for locating heat sources in overhaul and size up, electrical troubleshooting etc. When engaged, ETT senses the hottest area in the scene and colors it blue.