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PRT-ATH1 / ACC-ATH1 Protege Temperature and Humidity Sensor Installation Manual | April 2011
7
3 Mounting
The Protege Temperature and Humidity Sensor is intended to measure the temperature and humidity of air in an
enclosed space (a room). It is intended to be mounted on a wall with adequate air flow around and through it.
Step 1
Select where to mount the Protege Temperature and Humidity Sensor. Be sure to account for the temperature
gradient within the room. Hot air rises so rooms are generally warmest toward the ceiling. In an office setting,
when determining a comfortable temperature for seated and upright people, mount the Protege Temperature
and Humidity Sensor 1.2m above the floor.
Step 2
In a factory or server room, where the ambient temperature around machinery is to be measured, mount the
Protege Temperature and Humidity Sensor 1.7m above the floor. Mount the Sensor in a position where it is away
from hot or cold spots within the room. E.g. windows, air conditioning vents, lighting etc. Air enters the Protege
Temperature and Humidity Sensor through vents along the sides of the case. These should be unobstructed.
Step 3
Remove the rear half of the Protege Temperature and Humidity Sensor by depressing the retaining clip and
rotating the case halves apart.
Step 4
Hold the rear case half against the wall and mark the mounting holes and cable entry area. The cable entry area
should align with a hole cut through the plaster wall-board. Cables are intended to be run inside the wall. Use
appropriate screws (not supplied) to affix the case to the wall.
Step 5
Run the wiring. Refer to later sections of this manual for the electrical connections. Leave about 20cm (8") of
wire protruding through the center of the mounted half of the case.
Step 6
Connect the wiring to the Protege Temperature and Humidity Sensor electronics, then, to clip the case together,
hook the top edges together then rotate and press the bottom in until you hear the clip snap into place.