The limiting air flow restriction for all of the IRt/c
models and available airpurge jackets is the air
fitting supplied with the unit. Accordingly, all IRt/c’s
with built-in air purge, and the micro IRt/c or ACE
airpurge jacket all have essentially the same pres-
sure vs. air flow characteristics, and the air flow
chart applies to all. However, the air consumption
requirements for purging or cooling for each are
somewhat different due to size and operation
variables. Refer to the table for specific model
requirements for minimum pressure for purging,
or for cooling in elevated ambient conditions.
Pressure for cooling can be increased when
ambient temperatures increase, yet be aware of
the possibility that the airflow can cool your target
if the sensor is positioned at close distance.
