PRODUCT OVERVIEW SnakeEye Thermal Switch www.exergen.com
SnakeEye 100% Inspection of Holt Melt Adhesive Applied to Product Photocell-Like Non-Contact Thermal Inspection 100% Inspection of Holt Melt Adhesive Applied to Product www.exergen.com
Non Contact Sensors for IR Thermal Switching Detect hot object presence and position Photocell simplicity Extraordinary thermal sensitivity Straight view and Side view models available High speed and low speed available www.exergen.com
How the Snake Eye Works Heat signature created by hot source enters the field of view and is detected If the positive (cold to hot) rate of change is sufficient for a sufficient length of time (as determined by the sensitivity adjustment), the SnakeEye causes the output to switch For the trailing edge (hot to cold), a second output switch is activated when negative rate of change and time are sufficient www.exergen.com
Principles of the SnakeEye Field of View The heat source enters the field-of-view of the SnakeEye and is detected by the sensing system. If the rate of change is of sufficient magnitude the SnakeEye causes the output to switch. Heat Source Input Thermal Signature Output Thermal Switching time www.exergen.com
SPECIFICATIONS SENSING RANGE: 0.01” (0.25 mm) minimum target size or 4F (2C) temperature difference SENSING SPEED: 5 msec response time, 1500 ft/min. max line speed, 1 ft/min (0.3 m/min) minimum line speed FIELD OF VIEW: 3:1 SIGNAL OUTPUT: 2 solid state switches www.exergen.com
Thermal Switching of Objects With Less Than 1oC Differential SnakeEye Photocell-Like Non-Contact Thermal Switches Thermal Switching of Objects With Less Than 1oC Differential Length Line Speed Gap Gap/Object Temperature Difference 5 msec Trailing Edge Switching Leading www.exergen.com
Detecting Presence/Absence Hidden Foil Safety Seal Heat Signature of Heated Foil Through Cap Pharmaceutical Bottle Induction Heater www.exergen.com
Snake Eye Applications Hot melt detection (Beer cartons, diaper lines, cereal boxes, etc.) Thermal Switching (safety seal lines for aspirin bottles, thermal signatures on heated labels, hot food product on assembly line) www.exergen.com
PACKAGING www.exergen.com
HOT MELT DETECTION www.exergen.com