KANOMAX 2211 Handheld IAQ Monitor - Manual (Page 12)

7
2.5 How to make measurement
2.5.1 Measuring CO and CO
2
and Attentions
The diffusion state of the air(State of flow) affects response time of CO and CO
2
sensor. In order to
obtain an exact measurement result, please measure in the place which has the flow of air as much
as possible.
Mechanism of CO and CO
2
sensor has a limitation in accuracy when measurement takes place
under drastic thermal change. When a sensor and measuring object have apparent thermal
discrepancy, leave a probe in open air for at least 20 minutes before you start a measurement.
After turning a POWER ON, sensor circuit requires 5 minutes to warm-up. For an accurate
measurement result, please wait for 5 minutes after turn the Power ON.
Keep this sensor away from expiratory air; exhaled air contain more than 10,000ppm of CO
2
and
exhaled cigarette smoke contains a few ppm of CO. We recommend you to place a probe on the
provided probe stand.
<How to use a Probe Stand>
Lightly push grip part of probe into holder of probe stand.
※
Be sure to place the probe stand on the horizontal and stabilized stand. Unstable place may cause
probe stand to fall and damage the probe.
① ②
Probe Stand
Holder