Caron 7304 - Manual (Page 48)

7300 Series Operations Manual Rev A 3/26/2014 Page 48 of 80
SECTION 8 – ALARMS
Alarm System Overview
The chamber control system is equipped with an alarm system that constantly monitors
temperature, and humidity (on humidified models) to ensure the user is notified if the
cabinet goes into an alarm condition. Notification occurs via an alarm pop-up window
and a buzzer. Each alarm condition has been factory programmed to minimize
nuisance alarms while maximizing warning time. There is a 2 hour time delay at start-
up and set point changes. To avoid nuisance alarms after a routine door opening, an
alarm condition must be present for 15 minutes before the operator is alerted. If the
optional remote alarm contacts are present, in an alarm condition, the dry contacts will
change state.
The following alarm messages could be displayed:
 Chamber temperature is higher than set-point temperature
 Chamber temperature is lower than set-point temperature
 Chamber humidity is higher than set-point humidity
 Chamber humidity is lower than set-point humidity

Chamber CO2 is higher than set-point humidity

Chamber CO2 is lower than set-point humidity
 Chamber light intensity is higher than set-point humidity
 Chamber light intensity is lower than set-point humidity
 Temperature sensor error
In the event an alarm occurs, the alarm indicator will appear on the status bar and an
audible alarm will occur. The flashing (Alarm) icon will appear on the status bar and
the alarm pop-up window will automatically appear.
Alarm icon
Audible speaker