Tri-Mode Sensitivity
All microbolometer based Thermal Image Cameras have two sensitivity modes, High and Low. These sensitivity (or gain) modes expand the dynamic temperature range of the cameras to allow higher temperatures to viewed in the scene. The Argus4 camera has THREE temperature sensitivity modes which further increases the temperature range to over 800OC.
These sensitivity modes are: High sensitivity, Low sensitivity and Extra low sensitivity.
High sensitivity
A green M indicates that the Argus camera is in the high sensitivity mode. The LCD screen displays a clear and detailed image. The camera selects this mode when the temperature of objects in the camera field of view is between -40°C and +150°C.
Low sensitivity
An orange M indicates that the Argus camera is in the low sensitivity mode. The LCD screen displays an image that is slightly less detailed than that when the camera is in the high sensitivity mode. The camera selects this mode when the temperature of objects in the camera field of view is above +150°C but below +400°C.
Extra low sensitivity
A red M indicates that the Argus camera is in the extra low sensitivity mode. The camera selects this mode when the temperature of objects in the camera’s field of view is above +400°C This enables viewing of very high temperatures of up to 800oC.
The Argus4 camera automatically selects the most suitable mode for creating the clearest and most detailed image possible. This eliminates “whiteout” which is common in other Fire-Fighting cameras.
The change in sensitivity is seamless and the only indication that the user has that the image has changed is the colour mode indicator M at the top of the screen changing colour.
The short video clip here shows the Tri-Mode Sensitivity working. The beginning of the video shows the scene in extra low sensitivity
