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

IAQPoint2™

Maintenance

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�

Sensor accuracy test

To test the CO sensor, apply 1000 ppm of CO test gas 3 � The sensor should read
2 2
±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�
2
VOC sensors can be affected by rapid transitions in relative humidity�
3 part no� M-501010
55