Sensor Poisons/Inhibitors; Maintenance; Sensor Accuracy Test - Honeywell IAQPoint2 Technical Manual

Indoor air quality monitor

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IAQPoint2

The built-in ABC algorithm makes maintenance unnecessary in normal environments�

Cleaning

Clean the case and the touchscreen by wiping gently with a soft cloth dampened only with water�

Do not allow water to enter the monitor's case� Do not spray any liquids on the touchscreen or the

case� Do not use harsh or abrasive cleaning solutions on the touchscreen or the case�

To test the CO

sensor, apply 1000 ppm of CO

test gas

� The sensor should read ±30 ppm ±5% of

the test gas specification� This equates to 1000 ppm ±80 ppm ± of the test gas specification�

There is no accuracy test for VOC sensors�

Sensor poisons/inhibitors

Silicone is one of the major chemicals that has an adverse effect on VOC sensors� It forms a layer

on top of the sensitive material, thus limiting the accessibility of the sensor surface� When this

happens, sensitivity can be reduced drastically� The effect of this on the monitor's performance

could be severe� The monitor would be unable to recover from this condition� There are no poisons

or inhibitors for the CO

sensor�

VOC sensors can be affected by rapid transitions in relative humidity�

4 part no� M-501010

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