TSI Incorporated DUSTTRAK DRX 8533, Руководство по эксплуатации и обслуживанию

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Operation 31
10. Select Photometric from the User Cal drop down selection and enter the
NewCal factor using the onscreen controls.
Alarm
Alarm allows you to set alarm levels on any of the 5 mass channels PM
1
,
PM
2.5
, RESP, PM
10
and Total. However, the alarm functioning is determined
by the logging interval. The alarm will turn ON only if the average
concentration over the logging interval exceeds the set point. If the logging
interval is too long and the concentration exceeds the set point and stays at
that level, the alarm will not turn ON until after the logging interval has
passed. Likewise, the alarm will not stop until after the concentration has
dropped below 5% of the threshold and after the logging interval has passed.
For each mass channel, an alarm set point level and alarm type can be set.