Vaisala HMM211 - Manual (Page 17)

Chapter 4 _______________________________________________________________ Installation
CHAPTER 4
INSTALLATION
This chapter provides you with information that is intended to help you
install this product.
Selecting Location
Finding a suitable site for HMM211 is important for getting
representative ambient measurements.
Select a place that gives a true picture of the environment or process and
is as clean as possible. Air should flow freely around the sensor.
Install the sensor head to a sufficient distance from the duct or chamber
walls. Make sure to insert enough cable to the same space with the probe
in order to prevent heat conduction. If an additional temperature probe is
used, install it so that the warmed sensor head does not interfere with the
measurement.
VAISALA _______________________________________________________________________ 17