| #40 Monitoring Plastic Extrusions |
| IRt/c's are well suited for monitoring the temperature of plastic extrusions, either at the point of extrusion to monitor correct extrusion temperature, or after air cooling to monitor/control the cooling process prior to cutting to length. The model recommended depends on the monitoring geometry |
| For extrusions of 1" (2.5 cm) width or more, the standard IRt/c may be used at a distance of 1/2" (1.3 cm), which is sufficient to keep the lens clean in a reasonably clean environment. |
| For smaller extrusions, or for up-reading; the IRt/c.3x is preferred due to its smaller 0.25" minimum spot size (6 mm), and built-in air purge, which will maintain cleanliness even when very close to the hot plastic and pointed up. |
| For larger extrusions, in which more convenient positioning at greater distance is desired, the IRt/c.5 is recommended, due to its narrow 5:1 field-of-view. |
| For the smallest extrusions, the "Slot Spot" models, with their tightly focused optical systems, can measure to 2 mm (see Tech Note No. 80). |
|
|
 |
 |
 |
 |
| IRt/c |
IRt/c.3X |
IRt/c.5 |
"Slot Spot" |
|
|
|
|
|
