Rae AutoRAE 2, User Manual

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17.2. Attaching An External Filter
In order to ensure that fresh air is uncontaminated by dust or other materials, use a filter
on the AutoRAE 2 Controller’s fresh air inlet. The inlet is located at the top end on the
left side. Inspect the filter periodically and replace it as necessary if it is dirty, damaged,
or contaminated.
AutoRAE 2 Controller – top view
17.2.1. Active Carbon Filter For Removing VOC
Whether zeroing the ppbRAE 3000 or in an environment in which the ambient air has
VOC (volatile organic compounds), you can use an Active Carbon Filter (P/N: 490-0006-
000), which filters out VOC from the air. When an AutoRAE Controller is used with one
or more Cradles, the air inlet on each attached cradle is disabled and air is taken in
through the Controller’s air inlet. Therefore, you only need to use one Active Carbon
Filter for the Controller instead of on each cradle. To install the Active Carbon Filter on
the cradle:
1. Remove the standard filter (if one is installed).
2. Remove the plastic filter adapter by twisting the plastic filter clockwise while
gently pulling outward.
3. Press the Active Carbon Filter into the receptacle. The filter is designed for 20
uses. To help you keep track of how many calibrations are performed, there are 20
small boxes painted on the surface of the filter that you can mark with a pen after
each use.
Note: Make sure the arrow on the side of the filter points toward the
cradle.
Press filter onto
receptacle
Press Active Carbon
Filter into receptacle
Remove standard filter
Remove plastic
filter adapter