Even with the availability of LoE Filter models, as a
general rule higher emissivities require less careful
attention to set-up details and calibration, and are
more “forgiving” in long term service using any
IR temperature measuring device. Accordingly it
is recommended that where possible, surface
missivity should be increased. If it is not possible
to increase emissivity, then a LoE Filter model
should be specified.
As an example, to control a metal roller temperature,
paint either the end or an unused edge, and monitor
with an IRt/c.
A recommended paint for most service is
RUST-OLEUM®
7778
BAR-B-Q-BLACK
Rated to 427°C (800°F)