Delta OHM HD45 17A, Manual

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3. INSTALLATION AND CONNECTION
The choice of the number of transmitters to be used for a typical installation and their
location depends on multiple factors, among which the dimensions of the breathing
space to be monitored, the distribution of people in the environment and the presence
of a forced air system.
The transmitter shall be placed in an area which is representative of the
environmental conditions, at 1.5m height above the floor and at least 1m distance
from the corners.
Do not install the transmitter next to windows, outside doors, direct heat, air
conditioning or within occupants’ breathing zone.
In all models, sensors and electronics are housed inside a robust plastic case. The
grids at the bottom and top of the housing allow ambient air to reach the internal
sensitive elements.
To install the instrument, open the housing by pushing down the upper and lower
tabs, then pull to remove the front panel (Fig. 3.A).
Fig. 3.A: Opening the instrument
When opening the lid, you will see the holes for fixing the base of the transmitter
directly to a panel or to a wall. Fix the base so that connectors are positioned at the
bottom of the instrument, and slot matches the connection cable output (Fig. 3.B).