Chapter Two Operation; Extending The Probe - TSI Alnor 9880 Manual Del Usuario

CHAPTER TWO
Operation
This chapter thoroughly explains how to operate
the Model 9880.

Extending The Probe

The Model 9880 contains a retractable velocity
probe which is shipped in its retracted position. To
expose the probe to the flow for air velocity
measurements, grasp the black tip of the probe
which is visible in the center of the top of the
instrument. Pull firmly straight up on the probe.
Once fully extended to its three-inch length the
probe can rotate 90° to facilitate measuring air from
many directions.
To retract the probe, align the sensor window so
that you can view straight through the window
from the front of the instrument. Once the window
is aligned to the front, grasp the probe tip and push
firmly straight into the instrument case. Always
store the probe in its retracted position when not in
use in order to protect the sensor.
The Model 9880 is designed to stand either upright
or on its sides in air velocities of up to several
hundred feet per minute. This can be useful for
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