1 chamber alarm system function, Chamber alarm system function – Eppendorf Galaxy CO2 Sensor User Manual
Page 40
Operating controls and function for Galaxy 170 R Incubator
Galaxy
®
170 R/170 S CO
2
Incubators
English (EN)
40
2. Select
YES
for both
TEMP
and
CO
2
.
3. When
YES
is selected for this function, the
DELAY IN ARMING AFTER DOOR OPEN
is ignored.
A DOOR OPEN ALARM:
can be adjusted, choosing from seven preset durations (45 seconds in (Fig. 6-8 on
p. 39)) to warn of an improperly closed door.
The
AUDIBLE
and
VISUAL
alarms can be adjusted from
OFF
to
ON
(which means the alarm will be on
continuously until it is acknowledged) in seven preset time increments.
In the
OFF
position, any Chamber Alarms that occur will be displayed on the screen without flashing and
with the audible alarm inhibited (see
Chamber alarm system function on p. 40).
6.6.1
Chamber alarm system function
When the incubator is switched
ON
, or after the temperature and CO
2
levels have been re-programmed, the
alarm system is inactive until the setpoint values are achieved (within ± 0.1), after which the alarm system
is armed. CO
2
and temperature alarms are individually armed.
If temperature and/or CO
2
levels deviate more than the programmed setpoints, the display flashes, the
audible alarm sounds and a message appears on the screen (see Fig. 6-9 on p. 40). Acknowledge the alarm
by pressing any key.
Abb. 6-9:
CHAMBER ALARM message
Fig. 6-9:
CHAMBER ALARM
message
After setpoints have been achieved for the first time, when the outer door is opened, the alarm system is
disabled; on closing the door, if selected, a programmable alarm delay starts:
• 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 and 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.
If the CO
2
valve is opened and no pressure is detected, an alarm occurs and a warning message appears on
the screen, alerting you to
CHECK CO
2
SUPPLY