Vaisala HMDW80 User Manual download pdf (Page 19)

Chapter 3 ________________________________________________________________ Installation

VAISALA ________________________________________________________________________ 17

CHAPTER 3

INSTALLATION

This chapter provides you with information that is intended to help you

install HMDW80 series transmitters.

Selecting Location

When mounting duct model transmitters:

- Avoid installing in a location where condensation may fall on the

sensor inside the duct.

- Position the sensor in the center of the duct.

- Select a site where the transmitter can be installed horizontally, onto

the side of the duct.

When mounting wall model transmitters:

- Select a location that represents well the area of interest.

- Do not install on the ceiling.

- Avoid placing the transmitter near heat and moisture sources, close to

the discharge of the supply air ducts, and in direct sunlight.

When mounting outdoor transmitters:

- Install in a place that receives minimal direct sunlight. In the northern

hemisphere, the North side of the building typically provides a

suitable shaded location.

- Avoid placing the transmitter near windows, air conditioning units, or

other heat and moisture sources such as cooling towers.

- Install the transmitter at least 2.5 m above ground level.

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Vaisala HMDW80 User Manual Page 19