Eppendorf Galaxy CO2 Sensor - Manual (Page 46)

Operating controls and function for Galaxy 170 S Incubator
Galaxy
® 170 R/170 S CO
2
Incubators
English (EN)
46
As you scroll through the available choices, you will see OFF , 10 sec, 30 sec, 60 sec, 600 sec, 1 HR, then
ON ).
4. Press the Enter key to select the desired value.
5. Press the Programming ( * ) key twice to exit the menu.
7.3.5 Alarm arming delay
The alarm arming delay is the length of time that is allowed for the Temperature and CO
2
to recover after
opening the incubator before the Alarm System is armed again. This helps to prevent unnecessary alarms
from occurring.
To change the delay:
1. Press the Enter and keys simultaneously to enter Alarm Program Mode.
The display will show: °C.AL .
2. Press the key until the display shows DR .DEL (across both windows).
3. Press the Enter key and the and keys to adjust the Alarm Arming time.
As you scroll through the available choices, you will see 0.15 Hr, 0.20, 0.30, 1.00 , then OFF .
4. Press Enter to select the desired value.
5. Press ( * ) to return to the main alarm programming menu, and press ( * ) again to return to the main
display.
7.4 Chamber alarm system
When the incubator is switched ON, or after any values have been reprogrammed, the Alarm System is
inactive until the setpoint values (± 0.1) are achieved, after which the Alarm System is armed.
If temperature and/or CO
2
levels deviate more than the programmed amount, the display flashes, the
audible alarm sounds and a message appears on the screen. You can acknowledge (and cancel) the alarm
by pressing any key.
When the outer door is opened, the Alarm System is disabled. When you close the door, the preset Alarm
Arming Delay starts. When the delay time expires, the Alarm System is re-armed; if the temperature and/or
CO
2
fall below or above the alarm setpoints, the alarm will be activated. If chamber conditions recover
within the Alarm Arming Delay time, the Alarm System will be re-armed but no alarm will be activated.
If an alarm is not acknowledged but the chamber conditions subsequently recover, the audible alarm will be
cancelled but the alarm message will remain on the screen to alert the user to the fact that an alarm has
occurred. You can cancel this alarm message by pressing any key. The duration of the audible alarm can be
adjusted from inactive to continuous (see
Alarm duration on p. 45).
When alarm delay is set to OFF, the Alarms will arm only when the programmed setpoint is
reached.