Honeywell IAQPoint2 Guide De Démarrage Rapide page 41

IAQPoint2™
Configure\Configure Outputs\Set mA Ch2 Function
The IAQPoint monitor has three channels� Channels 1 and 2 report gas values�
Channel 2 can be configured to measure temperature (voltage) instead� Channel 3
measures humidity when the optional rH sensor is installed� Report Temperature
is the default when the monitor is configured with a temperature/humidity sensor,
otherwise Report Gas Conc� is the default�
The operation of the middle of the three analog outputs is determined at this
screen� (It will not be visible on digital models�) Models without the optional
temperature sensor route the gas signal to channel 2 by default and so do not
show this screen� Thus this screen is visible only on models with analog output and
a temperature sensor�
This screen permits changing the function of channel two� For example, a certain
monitor might be in an environment with a CO concentration of 5000 ppm (full
2
scale) and a temperature of 77°F (half scale)� If the channel 2 function is set to
temperature, the 12 mA/6 V (temperature) signal will be produced by channel 2�
But if the channel 2 function is set to CO , the 20 mA/10 V (the CO signal) will be
2 2
produced by channel 2� This feature works in a similar fashion if a VOC sensor is
fitted� It has no effect on the operation of channels 1 or 3� This facilitates getting
from a single monitor both current and voltage signals that are proportional to the
CO concentration�
2
Configure\Configure Outputs\Set Occupied Timeout
Set Occupied Timeout controls the delay between when the HVAC system is given
the command to deactivate and when it actually shuts down� Available values
vary from one minute to two hours in six steps� The occupied timer starts running
whenever the [Occ] button on the main screen is pressed� (The [Occ] button is
hidden by default but can be shown via Configure\Configure Display\Main Display
Datase t�) The timer drives the "occupied" icon ( ) on the main screen, a fieldbus
output, and can be configured to drive the relay� (The relay is configured via the
Configure\Configure Outputs\Set Relay Source screen�)
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