Chapter 2 Operation; Extending The Probe - Alnor 9870 Owner's Manual

under the battery access cover. Replace the battery
access cover and tighten the screw.
If the batteries are installed incorrectly, no damage
to the meter will occur, but the instrument will not
function.
CHAPTER 2
Operation
This chapter thoroughly explains how to operate the
meter
.

Extending the probe

The Model 9870 contains a telescoping velocity
and temperature measuring probe which is shipped
in its collapsed position. To expose the probe to the
flow for air velocity or temperature measurements,
grasp the tip of the probe and pull firmly.
To retract or collapse the probe, simply push the tip
of the probe straight toward the handle. When you
collapse the probe, be sure to allow room for the
cable to move freely out of the base of the probe.
Hindering the movement of the cable at the base of
the probe will make it difficult to collapse the
probe.
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