NEW BRUNSWICK SCIENTIFIC Innova CO-170, Руководство по эксплуатации

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33
New Brunswick Scientific User’s Guide
If chamber conditions recover within the programmed alarm delay time,
the Alarm System is immediately re-armed. After the delay, the Alarm
System is armed and if the temperature and CO
2
are outside the Alarm
High & Low settings, the alarm will be activated.
If an alarm occurs and the chamber subsequently recovers, the alarm
stops and the system is re-armed. Details of the Alarm Event are stored
in the Datalogger.
Figure 13: Chamber Alarm System Flow Chart
15 MINUTES
ALARM DELAY
TIMEOUT
COMPLETED
ARE TEMPERATURES AND CO2
LEVELS /- 0.1 OF SET
POINT?
CHANGE
PROGRAMMED
VALUES
OPEN INNER DOOR
DISARM ALARMS
CLOSE INNER
DOOR
15 MINUTES
ALARM DELAY
TIMEOUT STARTED
IS TEMPERATURE OR CO2 LEVEL
MORE THAN +/- 0.5 OUTSIDE
PROGRAMMED POINTS?
CANCEL ALARM BY
PRESSING ANY KEY
ALARMS
CANCELLED
VISUAL AND AUDIBLE
ALARMS CANCELLED,
MESSAGE LEFT ON SCREEN
CANCEL
MESSAGE BY
PRESSING ANY
KEY
NO
YES
YES
SWITCH ON
ARM ALARMS
VISIBLE AND AUDIBLE
ALARM - MESSAGE ON
SCREEN
HAVE CONDITIONS
RECOVERED TO
/- 0.1?
YES
NO
NO