1. PRODUCT OVERVIEW
SnakeEye
Thermal Switch

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. Detecting Presence/Absence Hidden Foil Safety Seal
Heat Signature of Heated Foil Through Cap
Pharmaceutical
Bottle
Induction Heater

9. 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)

10. PACKAGING

11. HOT MELT DETECTION