Rae AutoRAE 2, User Manual

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6. Preparing For Bump Testing & Calibration
Before performing a bump test or calibration, the AutoRAE 2 Cradle must be set up,
filter installed, and power applied. In addition, it must be configured using ProRAE
Studio II software to set the gas types and concentrations, as well as the time and date.
See page 37 for details.
6.1. Installing An External Filter
In order to ensure that fresh air is uncontaminated by dust or other materials, use a filter
on the AutoRAE 2 Cradle’s fresh air inlet. The inlet is located on the top end, to the left
of the locking mechanism. Inspect the filter periodically and replace it as necessary if
dirty, damaged, or contaminated.
6.2. Installing An External Charcoal Filter
When zeroing the ppbRAE 3000, it is necessary to use an external charcoal filter for the
truest zero readings (alternatively, you can use ultra-pure zero air). It is also a good idea
to use a charcoal filter anywhere that the ambient air has VOC (volatile organic
compounds). The Active Carbon Filter (P/N: 490-0006-000) filters out VOC from the air.
To install the charcoal filter on the cradle, remove the plastic filter adapter by twisting the
plastic filter clockwise while gently pulling outward. The Active Carbon 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.
Simply press it into the receptacle on the AutoRAE 2 cradle.
Note: Make sure the arrow on the side of the filter points toward the cradle.
Press filter onto
receptacle