Warm-Up; The Abc Algorithm - Honeywell IAQPoint2 Technical Manual

NOTE
!
If the monitor is installed in an area with a chronically high
level of VOCs, it will use that level to establish its baseline� It
will then report a high VOC level only when the concentration
rises above this baseline� It will recalibrate the baseline when
chronic VOCs are abated�
LCD touchscreen monitors
The user will be presented with one of two interfaces, depending on the password
that is entered� Figure 25 in the Menus section is a map of all of the IAQPoint2
monitor's interface options� Exact options will vary depending on the configuration
of the unit�
CAUTION
!
Do not use excessive pressure on the touchscreen�

Warm-up

Monitors equipped with CO
temperature and 30-70% relative humidity� Typically, this takes about 1 minute and
is never more than 15 minutes� They will self-calibrate in two the three weeks� VOC
sensors also require warm-up periods of up to 15 minutes after an initial baselining
with clean air� They will self-calibrate in a week�

The ABC algorithm

ABC (Automatic Baseline Correction) keeps track of the sensor's lowest reading
over a 7½-day interval and slowly adjusts for any long-term drift that is detected as
compared to the expected fresh air value of 400 ppm CO
Do not perform delivery inspections or performance verification tests concerning
sensor reading accuracy immediately after installation� Rough handling and
transportation can result in a reduction in the accuracy of sensor readings� Over
time, however, the ABC function will adjust the readings back to the accurate
numbers�
The non-display unit is configured with ABC enabled� No calibration is required�
Contact a Honeywell Analytics representative for advice regarding a proper
calibration strategy�
sensors require a warm-up period at room
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IAQPoint2™
�
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